./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3245437998

<...>
[    3.210256][   T30] audit: type=1400 audit(1686429311.632:10): avc:  denied  { getattr } for  pid=82 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[    3.365355][   T99] udevd[99]: starting version 3.2.11
[    3.389009][  T100] udevd[100]: starting eudev-3.2.11
[    6.962181][  T106] udevd (106) used greatest stack depth: 22608 bytes left
[   11.323437][   T30] kauditd_printk_skb: 50 callbacks suppressed
[   11.323451][   T30] audit: type=1400 audit(1686429319.762:61): avc:  denied  { transition } for  pid=223 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   11.329837][   T30] audit: type=1400 audit(1686429319.762:62): avc:  denied  { noatsecure } for  pid=223 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   11.334558][   T30] audit: type=1400 audit(1686429319.762:63): avc:  denied  { write } for  pid=223 comm="sh" path="pipe:[12369]" dev="pipefs" ino=12369 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1
[   11.338764][   T30] audit: type=1400 audit(1686429319.762:64): avc:  denied  { rlimitinh } for  pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   11.341395][   T30] audit: type=1400 audit(1686429319.762:65): avc:  denied  { siginh } for  pid=223 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
Warning: Permanently added '10.128.0.196' (ECDSA) to the list of known hosts.
execve("./syz-executor3245437998", ["./syz-executor3245437998"], 0x7ffe7c33c460 /* 10 vars */) = 0
brk(NULL)                               = 0x555556c5e000
brk(0x555556c5ec40)                     = 0x555556c5ec40
arch_prctl(ARCH_SET_FS, 0x555556c5e300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x555556c5e5d0)         = 292
set_robust_list(0x555556c5e5e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7efcf6eda220, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7efcf6eda8f0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7efcf6eda2c0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7efcf6eda8f0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3245437998", 4096) = 28
brk(0x555556c7fc40)                     = 0x555556c7fc40
brk(0x555556c80000)                     = 0x555556c80000
mprotect(0x7efcf6f9b000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 293
./strace-static-x86_64: Process 293 attached
[pid   292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 294 attached
 <unfinished ...>
[pid   292] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 294
[pid   292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   294] <... set_robust_list resumed>) = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   294] <... openat resumed>)       = 3
[pid   293] close(3 <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   294] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] close(3./strace-static-x86_64: Process 295 attached
 <unfinished ...>
[pid   292] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 295
[pid   294] <... close resumed>)        = 0
[pid   292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   292] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 299
[pid   292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 298
[pid   292] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 300
[pid   292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 301
./strace-static-x86_64: Process 299 attached
[pid   299] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid   299] close(3 <unfinished ...>
[pid   295] set_robust_list(0x555556c5e5e0, 24./strace-static-x86_64: Process 297 attached
) = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   297] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   295] <... openat resumed>)       = 3
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   297] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   295] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   297] <... prctl resumed>)        = 0
[pid   295] close(3)                    = 0
[pid   297] setpgid(0, 0 <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   297] <... setpgid resumed>)      = 0
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 303
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   297] write(3, "1000", 4)         = 4
[pid   297] close(3)                    = 0
./strace-static-x86_64: Process 300 attached
./strace-static-x86_64: Process 303 attached
./strace-static-x86_64: Process 301 attached
./strace-static-x86_64: Process 298 attached
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 297
[pid   303] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   300] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   301] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   303] <... set_robust_list resumed>) = 0
[pid   301] <... set_robust_list resumed>) = 0
[pid   300] <... set_robust_list resumed>) = 0
[pid   298] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   297] <... futex resumed>)        = 0
[pid   303] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   303] <... prctl resumed>)        = 0
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   298] <... set_robust_list resumed>) = 0
[pid   297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   303] setpgid(0, 0 <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
[pid   298] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   303] <... setpgid resumed>)      = 0
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   298] <... prctl resumed>)        = 0
[pid   297] <... mmap resumed>)         = 0x7efcf6ea9000
./strace-static-x86_64: Process 304 attached
[pid   303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   301] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   300] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 304
[pid   298] setpgid(0, 0 <unfinished ...>
[pid   297] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   303] <... openat resumed>)       = 3
[pid   301] close(3 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   298] <... setpgid resumed>)      = 0
[pid   297] <... mprotect resumed>)     = 0
[pid   304] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   303] write(3, "1000", 4 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   297] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   298] <... openat resumed>)       = 3
./strace-static-x86_64: Process 305 attached
[pid   305] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   304] <... set_robust_list resumed>) = 0
[pid   303] <... write resumed>)        = 4
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 305
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 306
[pid   298] write(3, "1000", 4 <unfinished ...>
[pid   303] close(3 <unfinished ...>
[pid   298] <... write resumed>)        = 4
[pid   297] <... clone resumed>, parent_tid=[307], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 307
[pid   303] <... close resumed>)        = 0
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] close(3 <unfinished ...>
[pid   297] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   303] <... futex resumed>)        = 0
[pid   298] <... close resumed>)        = 0
[pid   297] <... futex resumed>)        = 0
[pid   304] <... prctl resumed>)        = 0
[pid   303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   304] setpgid(0, 0 <unfinished ...>
[pid   303] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   298] <... futex resumed>)        = 0
[pid   304] <... setpgid resumed>)      = 0
[pid   303] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   303] <... mprotect resumed>)     = 0
[pid   298] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   303] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   298] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   303] <... clone resumed>, parent_tid=[309], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 309
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   304] <... openat resumed>)       = 3
[pid   303] <... futex resumed>)        = 0
[pid   304] write(3, "1000", 4 <unfinished ...>
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   298] <... clone resumed>, parent_tid=[310], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 310
[pid   304] <... write resumed>)        = 4
[pid   298] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] close(3 <unfinished ...>
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   304] <... close resumed>)        = 0
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   304] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   304] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   305] <... set_robust_list resumed>) = 0
[pid   305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   304] <... clone resumed>, parent_tid=[311], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 311
[pid   304] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   305] setpgid(0, 0)               = 0
[pid   305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   305] write(3, "1000", 4)         = 4
[pid   305] close(3)                    = 0
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   305] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   305] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[312], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 312
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 306 attached
./strace-static-x86_64: Process 307 attached
./strace-static-x86_64: Process 310 attached
 <unfinished ...>
[pid   310] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   307] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   306] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   310] <... set_robust_list resumed>) = 0
[pid   307] <... set_robust_list resumed>) = 0
[pid   310] memfd_create("syzkaller", 0 <unfinished ...>
[pid   307] memfd_create("syzkaller", 0 <unfinished ...>
[pid   306] <... set_robust_list resumed>) = 0
[pid   306] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 309 attached
 <unfinished ...>
[pid   310] <... memfd_create resumed>) = 3
[pid   307] <... memfd_create resumed>) = 3
[pid   306] <... prctl resumed>)        = 0
[pid   310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   309] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   306] setpgid(0, 0 <unfinished ...>
[pid   310] <... mmap resumed>)         = 0x7efceeaa9000
[pid   309] <... set_robust_list resumed>) = 0
[pid   307] <... mmap resumed>)         = 0x7efceeaa9000
[pid   306] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 312 attached
./strace-static-x86_64: Process 311 attached
[pid   310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   309] memfd_create("syzkaller", 0 <unfinished ...>
[pid   306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   312] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   311] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   309] <... memfd_create resumed>) = 3
[pid   306] <... openat resumed>)       = 3
[pid   312] <... set_robust_list resumed>) = 0
[pid   311] <... set_robust_list resumed>) = 0
[pid   309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   306] write(3, "1000", 4 <unfinished ...>
[pid   312] memfd_create("syzkaller", 0 <unfinished ...>
[pid   311] memfd_create("syzkaller", 0 <unfinished ...>
[pid   309] <... mmap resumed>)         = 0x7efceeaa9000
[pid   306] <... write resumed>)        = 4
[pid   312] <... memfd_create resumed>) = 3
[pid   311] <... memfd_create resumed>) = 3
[pid   307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   306] close(3 <unfinished ...>
[pid   312] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   311] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   306] <... close resumed>)        = 0
[pid   312] <... mmap resumed>)         = 0x7efceeaa9000
[pid   311] <... mmap resumed>)         = 0x7efceeaa9000
[pid   309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[   19.767239][   T30] audit: type=1400 audit(1686429328.202:66): avc:  denied  { execmem } for  pid=292 comm="syz-executor324" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   19.772024][   T30] audit: type=1400 audit(1686429328.212:67): avc:  denied  { read write } for  pid=293 comm="syz-executor324" name="loop0" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   19.778343][   T30] audit: type=1400 audit(1686429328.212:68): avc:  denied  { open } for  pid=293 comm="syz-executor324" path="/dev/loop0" dev="devtmpfs" ino=112 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   19.786154][   T30] audit: type=1400 audit(1686429328.212:69): avc:  denied  { ioctl } for  pid=293 comm="syz-executor324" path="/dev/loop0" dev="devtmpfs" ino=112 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   311] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   310] <... write resumed>)        = 1048576
[pid   309] <... write resumed>)        = 1048576
[pid   306] <... futex resumed>)        = 0
[pid   310] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   309] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   307] <... write resumed>)        = 1048576
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   310] <... munmap resumed>)       = 0
[pid   309] <... munmap resumed>)       = 0
[pid   307] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   306] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   310] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   309] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   307] <... munmap resumed>)       = 0
[pid   306] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   310] <... openat resumed>)       = 4
[pid   309] <... openat resumed>)       = 4
[pid   307] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   306] <... mprotect resumed>)     = 0
[pid   310] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   309] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   306] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   311] <... write resumed>)        = 1048576
[pid   311] munmap(0x7efceeaa9000, 1048576) = 0
[pid   311] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   311] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   310] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 313 attached
[pid   313] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   311] <... ioctl resumed>)        = 0
[pid   311] close(3)                    = 0
[pid   311] mkdir("./file0", 0777)      = 0
[pid   311] mount("/dev/loop3", "./file0", "ext4", 0, ",errors=continue" <unfinished ...>
[pid   312] <... write resumed>)        = 1048576
[pid   310] close(3 <unfinished ...>
[pid   309] <... ioctl resumed>)        = 0
[pid   307] <... openat resumed>)       = 4
[pid   306] <... clone resumed>, parent_tid=[313], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 313
[pid   310] <... close resumed>)        = 0
[pid   307] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   312] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   310] mkdir("./file0", 0777 <unfinished ...>
[pid   309] close(3 <unfinished ...>
[pid   306] <... futex resumed>)        = 1
[pid   313] memfd_create("syzkaller", 0 <unfinished ...>
[pid   312] <... munmap resumed>)       = 0
[pid   310] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid   309] <... close resumed>)        = 0
[pid   313] <... memfd_create resumed>) = 3
[pid   312] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   310] mount("/dev/loop1", "./file0", "ext4", 0, ",errors=continue" <unfinished ...>
[pid   309] mkdir("./file0", 0777 <unfinished ...>
[pid   313] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   312] <... openat resumed>)       = 4
[pid   309] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid   313] <... mmap resumed>)         = 0x7efceeaa9000
[pid   312] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   309] mount("/dev/loop2", "./file0", "ext4", 0, ",errors=continue" <unfinished ...>
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   307] <... ioctl resumed>)        = 0
[   19.852942][  T310] loop1: detected capacity change from 0 to 2048
[   19.857672][  T311] loop3: detected capacity change from 0 to 2048
[   19.859557][  T309] loop2: detected capacity change from 0 to 2048
[   19.869329][   T30] audit: type=1400 audit(1686429328.302:70): avc:  denied  { mounton } for  pid=304 comm="syz-executor324" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   19.874249][  T307] loop0: detected capacity change from 0 to 2048
[pid   313] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   307] close(3 <unfinished ...>
[pid   312] <... ioctl resumed>)        = 0
[pid   312] close(3 <unfinished ...>
[pid   307] <... close resumed>)        = 0
[pid   312] <... close resumed>)        = 0
[pid   312] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   312] mount("/dev/loop5", "./file0", "ext4", 0, ",errors=continue" <unfinished ...>
[pid   307] mkdir("./file0", 0777 <unfinished ...>
[pid   313] <... write resumed>)        = 1048576
[pid   307] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid   313] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   307] mount("/dev/loop0", "./file0", "ext4", 0, ",errors=continue" <unfinished ...>
[pid   313] <... munmap resumed>)       = 0
[pid   313] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   313] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   311] <... mount resumed>)        = 0
[pid   313] close(3)                    = 0
[pid   313] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid   313] mount("/dev/loop4", "./file0", "ext4", 0, ",errors=continue" <unfinished ...>
[pid   311] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   311] chdir("./file0")            = 0
[pid   311] ioctl(4, LOOP_CLR_FD)       = 0
[pid   311] close(4)                    = 0
[pid   311] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   304] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 1
[   19.901550][  T312] loop5: detected capacity change from 0 to 2048
[   19.913374][  T313] loop4: detected capacity change from 0 to 2048
[   19.913617][  T309] EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
[   19.920051][  T311] EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
[   19.930849][  T310] EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
[pid   311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   310] <... mount resumed>)        = 0
[pid   311] <... open resumed>)         = 4
[pid   310] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   311] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... mount resumed>)        = 0
[pid   311] <... futex resumed>)        = 1
[pid   309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   304] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   311] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   311] <... open resumed>)         = 5
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   310] <... openat resumed>)       = 3
[pid   310] chdir("./file0")            = 0
[pid   310] ioctl(4, LOOP_CLR_FD)       = 0
[pid   310] close(4)                    = 0
[pid   310] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   298] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   310] <... futex resumed>)        = 1
[pid   310] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   311] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   304] <... futex resumed>)        = 0
[pid   311] ftruncate(5, 33587195 <unfinished ...>
[pid   304] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   311] <... ftruncate resumed>)    = 0
[pid   304] <... futex resumed>)        = 0
[pid   311] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... mount resumed>)        = 0
[pid   311] <... futex resumed>)        = 0
[pid   304] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   311] sendfile(4, 5, NULL, 4 <unfinished ...>
[pid   304] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   311] <... sendfile resumed>)     = 4
[pid   309] <... openat resumed>)       = 3
[pid   304] <... futex resumed>)        = 0
[pid   311] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   311] <... futex resumed>)        = 0
[pid   304] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   311] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 <unfinished ...>
[pid   304] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   19.948457][   T30] audit: type=1400 audit(1686429328.382:71): avc:  denied  { mount } for  pid=304 comm="syz-executor324" name="/" dev="loop3" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[   19.952616][  T307] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
[   19.984602][  T312] EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... openat resumed>)       = 3
[pid   309] chdir("./file0" <unfinished ...>
[pid   312] chdir("./file0" <unfinished ...>
[pid   309] <... chdir resumed>)        = 0
[pid   312] <... chdir resumed>)        = 0
[pid   310] <... open resumed>)         = 4
[pid   309] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   312] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   310] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... ioctl resumed>)        = 0
[pid   312] <... ioctl resumed>)        = 0
[pid   310] <... futex resumed>)        = 1
[pid   309] close(4 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   312] close(4 <unfinished ...>
[pid   310] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   309] <... close resumed>)        = 0
[pid   298] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... close resumed>)        = 0
[pid   310] <... open resumed>)         = 5
[pid   309] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   312] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   310] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... futex resumed>)        = 1
[pid   303] <... futex resumed>)        = 0
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... futex resumed>)        = 1
[pid   310] <... futex resumed>)        = 0
[pid   309] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   312] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   310] ftruncate(5, 33587195 <unfinished ...>
[pid   309] <... open resumed>)         = 4
[pid   303] <... futex resumed>)        = 0
[pid   298] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   310] <... ftruncate resumed>)    = 0
[pid   309] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   310] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... futex resumed>)        = 0
[pid   303] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   310] <... futex resumed>)        = 0
[pid   309] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   310] sendfile(4, 5, NULL, 4 <unfinished ...>
[pid   309] <... open resumed>)         = 5
[pid   303] <... futex resumed>)        = 0
[pid   298] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   310] <... sendfile resumed>)     = 4
[pid   309] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   303] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   310] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... futex resumed>)        = 0
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   310] <... futex resumed>)        = 1
[pid   309] ftruncate(5, 33587195 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   310] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   309] <... ftruncate resumed>)    = 0
[pid   298] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   310] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   309] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   310] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 <unfinished ...>
[pid   309] <... futex resumed>)        = 1
[pid   303] <... futex resumed>)        = 0
[pid   298] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   309] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   303] <... futex resumed>)        = 0
[pid   309] sendfile(4, 5, NULL, 4 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   309] <... sendfile resumed>)     = 4
[pid   309] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   303] <... futex resumed>)        = 0
[pid   309] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   309] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   303] <... futex resumed>)        = 0
[pid   309] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 <unfinished ...>
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... futex resumed>)        = 0
[pid   305] <... futex resumed>)        = 1
[pid   312] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   304] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   312] <... open resumed>)         = 4
[pid   304] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} <unfinished ...>
[pid   312] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   312] <... futex resumed>)        = 1
[pid   305] <... futex resumed>)        = 0
[pid   304] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   312] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   305] <... futex resumed>)        = 0
[pid   304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   312] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... open resumed>)         = 5
[pid   312] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   305] <... futex resumed>)        = 0
[pid   312] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   305] <... futex resumed>)        = 0
[pid   312] ftruncate(5, 33587195 <unfinished ...>
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... ftruncate resumed>)    = 0
[pid   312] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   305] <... futex resumed>)        = 0
[pid   312] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[   19.995647][   T30] audit: type=1400 audit(1686429328.382:72): avc:  denied  { mounton } for  pid=306 comm="syz-executor324" path="/root/file0" dev="loop3" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   20.019074][   T30] audit: type=1400 audit(1686429328.382:73): avc:  denied  { write } for  pid=304 comm="syz-executor324" name="/" dev="loop3" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   305] <... futex resumed>)        = 0
[pid   312] sendfile(4, 5, NULL, 4 <unfinished ...>
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... sendfile resumed>)     = 4
[pid   312] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   305] <... futex resumed>)        = 0
[pid   312] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   305] <... futex resumed>)        = 0
[pid   312] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 <unfinished ...>
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   304] <... mmap resumed>)         = 0x7efceeb88000
[pid   304] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   304] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[327], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 327
[pid   304] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   304] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 327 attached
 <unfinished ...>
[pid   307] <... mount resumed>)        = 0
[pid   298] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   327] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   298] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   327] <... set_robust_list resumed>) = 0
[pid   307] <... openat resumed>)       = 3
[pid   298] <... futex resumed>)        = 0
[pid   327] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   307] chdir("./file0" <unfinished ...>
[pid   298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   298] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   298] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[328], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 328
[pid   298] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   303] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   303] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   20.041653][   T30] audit: type=1400 audit(1686429328.382:74): avc:  denied  { add_name } for  pid=304 comm="syz-executor324" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1
[   20.062518][   T30] audit: type=1400 audit(1686429328.382:75): avc:  denied  { create } for  pid=304 comm="syz-executor324" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1
[   20.082348][  T313] EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue. Quota mode: none.
[pid   303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   307] <... chdir resumed>)        = 0
[pid   303] <... mmap resumed>)         = 0x7efceeb88000
[pid   307] ioctl(4, LOOP_CLR_FD)       = 0
[pid   307] close(4)                    = 0
[pid   307] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   297] <... futex resumed>)        = 0
[pid   307] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   303] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... futex resumed>)        = 0
[pid   307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... open resumed>)         = 4
[pid   307] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   297] <... futex resumed>)        = 0
[pid   307] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... futex resumed>)        = 0
[pid   307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... open resumed>)         = 5
[pid   307] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   297] <... futex resumed>)        = 0
[pid   307] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... futex resumed>)        = 0
[pid   307] ftruncate(5, 33587195 <unfinished ...>
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... ftruncate resumed>)    = 0
[pid   307] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   297] <... futex resumed>)        = 0
[pid   307] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... futex resumed>)        = 0
[pid   307] sendfile(4, 5, NULL, 4 <unfinished ...>
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] <... sendfile resumed>)     = 4
[pid   307] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   297] <... futex resumed>)        = 0
[pid   307] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   297] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... futex resumed>)        = 0
[pid   307] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 <unfinished ...>
[pid   297] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 328 attached
 <unfinished ...>
[pid   327] <... madvise resumed>)      = -1 ENOSPC (No space left on device)
[pid   305] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   303] <... mprotect resumed>)     = 0
[pid   313] <... mount resumed>)        = 0
[pid   305] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   328] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   327] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid   305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   304] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   328] <... set_robust_list resumed>) = 0
[pid   327] <... futex resumed>)        = 0
[pid   313] <... openat resumed>)       = 3
[pid   305] <... mmap resumed>)         = 0x7efceeb88000
[pid   304] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] <... clone resumed>, parent_tid=[329], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 329
[   20.095038][  T327] EXT4-fs error (device loop3): ext4_mb_generate_buddy:1148: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
[pid   313] chdir("./file0" <unfinished ...>
[pid   328] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   313] <... chdir resumed>)        = 0
[pid   313] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   327] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} ---
[pid   313] <... ioctl resumed>)        = 0
[pid   305] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   304] <... futex resumed>)        = 0
[pid   303] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... mprotect resumed>)     = 0
[pid   304] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   303] <... futex resumed>)        = 0
[pid   313] close(4)                    = 0
[pid   313] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 329 attached
 <unfinished ...>
[pid   329] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   329] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   306] <... futex resumed>)        = 0
[pid   305] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   304] <... futex resumed>)        = ?
[pid   303] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   298] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] <... futex resumed>)        = 1
[pid   305] <... clone resumed>, parent_tid=[330], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 330
[pid   313] <... futex resumed>)        = 0
[pid   313] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 4
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   305] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   298] <... futex resumed>)        = 0
[pid   313] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   328] <... madvise resumed>)      = -1 ENOSPC (No space left on device)
[pid   328] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   328] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   306] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   305] <... futex resumed>)        = 0
./strace-static-x86_64: Process 330 attached
[pid   330] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   330] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 1
[pid   313] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 5
[pid   313] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid   297] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   297] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 1
[pid   313] ftruncate(5, 33587195)      = 0
[pid   313] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   306] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 1
[pid   313] sendfile(4, 5, NULL, 4)     = 4
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   313] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   306] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 1
[pid   313] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 <unfinished ...>
[pid   306] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   312] <... mmap resumed>)         = 0x20000000
[pid   298] <... mmap resumed>)         = 0x7efceeb67000
[pid   298] mprotect(0x7efceeb68000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   312] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] <... mprotect resumed>)     = 0
[pid   298] clone(child_stack=0x7efceeb873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   312] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   298] <... clone resumed>, parent_tid=[331], tls=0x7efceeb87700, child_tidptr=0x7efceeb879d0) = 331
[pid   298] futex(0x7efcf6fa1708, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   298] futex(0x7efcf6fa170c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   309] <... mmap resumed>)         = 0x20000000
[pid   309] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   309] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   311] <... mmap resumed>)         = ?
[pid   311] +++ killed by SIGBUS +++
[pid   327] +++ killed by SIGBUS +++
[pid   304] +++ killed by SIGBUS +++
[pid   297] <... mmap resumed>)         = 0x7efceeb88000
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=304, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=8} ---
[pid   297] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   297] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   297] <... clone resumed>, parent_tid=[332], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 332
[pid   297] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   297] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 333
./strace-static-x86_64: Process 331 attached
[pid   331] set_robust_list(0x7efceeb879e0, 24) = 0
[pid   331] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} ---
./strace-static-x86_64: Process 332 attached
[pid   332] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   332] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   330] <... madvise resumed>)      = -1 ENOSPC (No space left on device)
[pid   329] <... madvise resumed>)      = -1 ENOSPC (No space left on device)
[pid   330] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   329] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   305] <... futex resumed>)        = 0
[pid   330] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   329] <... futex resumed>)        = 1
[pid   305] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   303] <... futex resumed>)        = 0
[pid   329] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   312] <... futex resumed>)        = 0
[pid   305] <... futex resumed>)        = 1
[pid   303] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   312] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} ---
[pid   305] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   303] <... futex resumed>)        = 1
[pid   330] <... futex resumed>)        = ?
[pid   309] <... futex resumed>)        = 0
[pid   303] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   330] +++ killed by SIGBUS +++
[pid   309] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} ---
[   20.143647][  T328] EXT4-fs error (device loop2): ext4_mb_generate_buddy:1148: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
[   20.149429][  T329] EXT4-fs error (device loop5): ext4_mb_generate_buddy:1148: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
[pid   329] <... futex resumed>)        = ?
[pid   312] +++ killed by SIGBUS +++
[pid   305] +++ killed by SIGBUS +++
[pid   303] <... futex resumed>)        = ?
[pid   329] +++ killed by SIGBUS +++
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=305, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=6} ---
[pid   309] +++ killed by SIGBUS +++
[pid   303] +++ killed by SIGBUS +++
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=303, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=8} ---
[pid   301] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   301] close(3)                    = 0
[pid   295] <... restart_syscall resumed>) = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 334
./strace-static-x86_64: Process 333 attached
[pid   333] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   333] setpgid(0, 0)               = 0
[pid   333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   328] <... futex resumed>)        = ?
[pid   298] <... futex resumed>)        = ?
[pid   295] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 334 attached
[pid   333] <... openat resumed>)       = 3
[pid   310] <... mmap resumed>)         = ?
[pid   306] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   297] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   295] close(3 <unfinished ...>
[pid   334] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   333] write(3, "1000", 4 <unfinished ...>
[pid   328] +++ killed by SIGBUS +++
[pid   310] +++ killed by SIGBUS +++
[pid   306] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   334] <... set_robust_list resumed>) = 0
[pid   333] <... write resumed>)        = 4
[pid   306] <... futex resumed>)        = 0
[pid   297] <... futex resumed>)        = 0
[pid   333] close(3 <unfinished ...>
[pid   297] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   333] <... close resumed>)        = 0
[pid   297] <... mmap resumed>)         = 0x7efceeb67000
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   297] mprotect(0x7efceeb68000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   333] <... futex resumed>)        = 0
[pid   297] <... mprotect resumed>)     = 0
[pid   333] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   297] clone(child_stack=0x7efceeb873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   334] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   333] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   334] <... prctl resumed>)        = 0
[pid   333] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   331] +++ killed by SIGBUS +++
[pid   306] <... mmap resumed>)         = 0x7efceeb88000
[pid   298] +++ killed by SIGBUS +++
[pid   297] <... clone resumed>, parent_tid=[335], tls=0x7efceeb87700, child_tidptr=0x7efceeb879d0) = 335
[pid   334] setpgid(0, 0 <unfinished ...>
[pid   333] <... mprotect resumed>)     = 0
[pid   306] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   297] futex(0x7efcf6fa1708, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=298, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=8} ---
[pid   334] <... setpgid resumed>)      = 0
[pid   333] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   306] <... mprotect resumed>)     = 0
[pid   297] <... futex resumed>)        = 0
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 336
[pid   294] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 335 attached
 <unfinished ...>
[pid   334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   306] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   297] futex(0x7efcf6fa170c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   334] <... openat resumed>)       = 3
[pid   333] <... clone resumed>, parent_tid=[337], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 337
[pid   335] set_robust_list(0x7efceeb879e0, 24 <unfinished ...>
[pid   334] write(3, "1000", 4 <unfinished ...>
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] <... set_robust_list resumed>) = 0
[pid   334] <... write resumed>)        = 4
[pid   333] <... futex resumed>)        = 0
[pid   306] <... clone resumed>, parent_tid=[338], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 338
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   334] close(3 <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   306] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   334] <... close resumed>)        = 0
[pid   306] <... futex resumed>)        = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   306] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 338 attached
[pid   334] <... futex resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   338] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 339
./strace-static-x86_64: Process 337 attached
[pid   337] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   337] memfd_create("syzkaller", 0) = 3
[pid   337] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   334] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   334] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
./strace-static-x86_64: Process 336 attached
[pid   334] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[   20.209630][  T332] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1148: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
[pid   336] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   334] <... clone resumed>, parent_tid=[340], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 340
[pid   338] <... set_robust_list resumed>) = 0
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   338] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 339 attached
 <unfinished ...>
[pid   336] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   339] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   336] <... prctl resumed>)        = 0
[pid   339] <... set_robust_list resumed>) = 0
[pid   336] setpgid(0, 0 <unfinished ...>
[pid   339] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   336] <... setpgid resumed>)      = 0
[pid   339] <... prctl resumed>)        = 0
[pid   336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   339] setpgid(0, 0 <unfinished ...>
[pid   336] <... openat resumed>)       = 3
[pid   339] <... setpgid resumed>)      = 0
[pid   336] write(3, "1000", 4 <unfinished ...>
[pid   339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   336] <... write resumed>)        = 4
[pid   339] <... openat resumed>)       = 3
[pid   336] close(3 <unfinished ...>
[pid   339] write(3, "1000", 4 <unfinished ...>
[pid   336] <... close resumed>)        = 0
[pid   339] <... write resumed>)        = 4
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] close(3 <unfinished ...>
[pid   336] <... futex resumed>)        = 0
[pid   339] <... close resumed>)        = 0
[pid   336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   339] <... futex resumed>)        = 0
[pid   336] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   336] <... mprotect resumed>)     = 0
[pid   339] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   336] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   339] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   337] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   336] <... clone resumed>, parent_tid=[341], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 341
[pid   339] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   339] <... clone resumed>, parent_tid=[342], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 342
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 341 attached
 <unfinished ...>
[pid   341] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   341] memfd_create("syzkaller", 0) = 3
[pid   341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 342 attached
./strace-static-x86_64: Process 340 attached
[pid   342] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   340] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   342] memfd_create("syzkaller", 0 <unfinished ...>
[pid   340] <... set_robust_list resumed>) = 0
[pid   342] <... memfd_create resumed>) = 3
[pid   342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   340] memfd_create("syzkaller", 0 <unfinished ...>
[pid   342] <... mmap resumed>)         = 0x7efceeaa9000
[pid   341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   340] <... memfd_create resumed>) = 3
[pid   335] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   332] <... madvise resumed>)      = -1 ENOSPC (No space left on device)
[pid   342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   341] <... write resumed>)        = 1048576
[pid   340] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   338] <... madvise resumed>)      = -1 ENOSPC (No space left on device)
[pid   337] <... write resumed>)        = 1048576
[pid   335] <... openat resumed>)       = 6
[pid   332] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   313] <... mmap resumed>)         = 0x20000000
[pid   341] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   340] <... mmap resumed>)         = 0x7efceeaa9000
[pid   338] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   332] <... futex resumed>)        = 0
[pid   313] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... write resumed>)        = 1048576
[pid   341] <... munmap resumed>)       = 0
[pid   340] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   338] <... futex resumed>)        = 1
[pid   337] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   335] <... futex resumed>)        = 0
[pid   332] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   313] <... futex resumed>)        = 0
[pid   306] <... futex resumed>)        = 0
[pid   297] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   342] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   341] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   340] <... write resumed>)        = 1048576
[pid   338] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   335] futex(0x7efcf6fa1708, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   313] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   306] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... openat resumed>)       = 4
[pid   340] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   313] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   306] <... futex resumed>)        = 0
[pid   341] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   340] <... munmap resumed>)       = 0
[pid   313] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} ---
[pid   306] read(0,  <unfinished ...>
[pid   337] <... munmap resumed>)       = 0
[pid   341] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   340] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   338] <... futex resumed>)        = ?
[pid   337] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   342] <... munmap resumed>)       = 0
[pid   341] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   340] <... openat resumed>)       = 4
[pid   338] +++ killed by SIGBUS +++
[pid   337] <... openat resumed>)       = 4
[pid   342] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   341] <... ioctl resumed>)        = 0
[pid   340] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   340] ioctl(4, LOOP_CLR_FD)       = 0
[pid   313] +++ killed by SIGBUS +++
[pid   337] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   306] +++ killed by SIGBUS +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=306, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=11} ---
[pid   342] <... openat resumed>)       = 4
[pid   337] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   342] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   342] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   337] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   342] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   337] <... ioctl resumed>)        = 0
[pid   342] <... ioctl resumed>)        = 0
[pid   300] <... restart_syscall resumed>) = 0
[pid   341] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   340] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   341] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   340] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[   20.270833][  T338] EXT4-fs error (device loop4): ext4_mb_generate_buddy:1148: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
[pid   341] close(4 <unfinished ...>
[pid   340] close(4 <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   341] <... close resumed>)        = 0
[pid   340] <... close resumed>)        = 0
[pid   300] <... openat resumed>)       = 3
[pid   341] close(3 <unfinished ...>
[pid   340] close(3 <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   342] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   341] <... close resumed>)        = 0
[pid   340] <... close resumed>)        = 0
[pid   337] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   341] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 1
[pid   334] <... futex resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   341] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   342] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   340] <... open resumed>)         = 3
[pid   337] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   336] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = 0
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 343
[pid   340] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   340] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] close(4 <unfinished ...>
[pid   340] <... open resumed>)         = 4
[pid   337] close(4 <unfinished ...>
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
./strace-static-x86_64: Process 343 attached
[pid   342] <... close resumed>)        = 0
[pid   341] <... futex resumed>)        = 0
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] <... close resumed>)        = 0
[pid   336] <... futex resumed>)        = 1
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   340] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   341] <... open resumed>)         = 3
[pid   340] ftruncate(4, 33587195 <unfinished ...>
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] <... ftruncate resumed>)    = 0
[pid   334] <... futex resumed>)        = 0
[pid   341] <... futex resumed>)        = 0
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   341] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   340] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   334] <... futex resumed>)        = 0
[pid   342] close(3 <unfinished ...>
[pid   340] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   337] close(3 <unfinished ...>
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   340] <... sendfile resumed>)     = 4
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   334] <... futex resumed>)        = 0
[pid   340] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   334] <... futex resumed>)        = 0
[pid   340] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] <... set_robust_list resumed>) = 0
[pid   342] <... close resumed>)        = 0
[pid   337] <... close resumed>)        = 0
[pid   336] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   343] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] <... prctl resumed>)        = 0
[pid   342] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 0
[pid   337] <... futex resumed>)        = 1
[pid   336] <... futex resumed>)        = 1
[pid   341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   339] <... futex resumed>)        = 0
[pid   333] <... futex resumed>)        = 0
[pid   341] <... open resumed>)         = 4
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   341] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   342] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] setpgid(0, 0 <unfinished ...>
[pid   342] <... open resumed>)         = 3
[pid   339] <... futex resumed>)        = 0
[pid   337] <... open resumed>)         = 3
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   333] <... futex resumed>)        = 0
[pid   343] <... setpgid resumed>)      = 0
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   342] <... futex resumed>)        = 0
[pid   339] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   337] <... futex resumed>)        = 0
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   333] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   307] <... mmap resumed>)         = 0x20000000
[pid   343] <... openat resumed>)       = 3
[pid   342] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] <... futex resumed>)        = 0
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   336] <... futex resumed>)        = 1
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   307] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] ftruncate(4, 33587195 <unfinished ...>
[pid   343] write(3, "1000", 4 <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   333] <... futex resumed>)        = 0
[pid   307] <... futex resumed>)        = 0
[pid   343] <... write resumed>)        = 4
[pid   342] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   341] <... ftruncate resumed>)    = 0
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   337] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   307] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   336] <... futex resumed>)        = 0
[pid   341] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   336] <... futex resumed>)        = 0
[pid   341] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] close(3 <unfinished ...>
[pid   342] <... open resumed>)         = 4
[pid   341] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   337] <... open resumed>)         = 4
[pid   297] exit_group(0 <unfinished ...>
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   336] <... futex resumed>)        = 0
[pid   341] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   336] <... futex resumed>)        = 0
[pid   341] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] <... close resumed>)        = 0
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   335] <... futex resumed>)        = ?
[pid   332] <... futex resumed>)        = ?
[pid   307] <... futex resumed>)        = ?
[pid   297] <... exit_group resumed>)   = ?
[pid   335] +++ exited with 0 +++
[pid   332] +++ exited with 0 +++
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   337] <... futex resumed>)        = 1
[pid   307] +++ exited with 0 +++
[pid   343] <... futex resumed>)        = 0
[pid   339] <... futex resumed>)        = 0
[pid   342] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   337] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   333] <... futex resumed>)        = 0
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   333] <... futex resumed>)        = 0
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   337] ftruncate(4, 33587195 <unfinished ...>
[pid   343] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   342] ftruncate(4, 33587195 <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   343] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   343] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   342] <... ftruncate resumed>)    = 0
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] <... clone resumed>, parent_tid=[345], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 345
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   339] <... futex resumed>)        = 0
[pid   337] <... ftruncate resumed>)    = 0
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   333] <... futex resumed>)        = 0
[pid   337] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   333] <... futex resumed>)        = 0
[pid   337] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   337] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   333] <... futex resumed>)        = 0
[pid   337] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] <... futex resumed>)        = 0
[pid   342] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   333] <... futex resumed>)        = 0
[pid   337] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 345 attached
 <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   297] +++ exited with 0 +++
[pid   345] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   342] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   342] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, si_uid=0, si_status=0, si_utime=0, si_stime=15} ---
[pid   345] <... set_robust_list resumed>) = 0
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   345] memfd_create("syzkaller", 0 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   339] <... futex resumed>)        = 0
[pid   293] <... restart_syscall resumed>) = 0
[pid   345] <... memfd_create resumed>) = 3
[pid   342] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   342] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   345] <... mmap resumed>)         = 0x7efceeaa9000
[pid   342] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   345] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   342] <... mmap resumed>)         = 0x20000000
[pid   341] <... mmap resumed>)         = 0x20000000
[pid   340] <... mmap resumed>)         = 0x20000000
[pid   334] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   293] <... openat resumed>)       = 3
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] <... mmap resumed>)         = 0x20000000
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   341] <... futex resumed>)        = 1
[pid   340] <... futex resumed>)        = 0
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] <... futex resumed>)        = 0
[pid   334] <... futex resumed>)        = 0
[pid   293] <... ioctl resumed>)        = 0
[pid   345] <... write resumed>)        = 1048576
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   340] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   337] <... futex resumed>)        = 1
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   333] <... futex resumed>)        = 0
[pid   293] close(3 <unfinished ...>
[pid   345] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   339] <... futex resumed>)        = 0
[pid   337] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   336] <... futex resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   339] <... futex resumed>)        = 0
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 346
./strace-static-x86_64: Process 346 attached
[pid   346] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   346] setpgid(0, 0)               = 0
[pid   346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   346] write(3, "1000", 4)         = 4
[pid   346] close(3)                    = 0
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   346] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   346] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[347], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 347
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 347 attached
 <unfinished ...>
[pid   347] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   347] memfd_create("syzkaller", 0) = 3
[pid   347] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... munmap resumed>)       = 0
[pid   342] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   341] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   333] <... futex resumed>)        = 1
[pid   345] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... openat resumed>)       = 4
[pid   337] <... futex resumed>)        = 0
[pid   345] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   337] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   345] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   347] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   345] <... ioctl resumed>)        = 0
[pid   342] <... madvise resumed>)      = 0
[pid   341] <... madvise resumed>)      = 0
[pid   340] <... madvise resumed>)      = 0
[pid   337] <... madvise resumed>)      = 0
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   341] <... futex resumed>)        = 1
[pid   339] <... futex resumed>)        = 0
[pid   337] <... futex resumed>)        = 1
[pid   336] <... futex resumed>)        = 0
[pid   333] <... futex resumed>)        = 0
[pid   339] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   333] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] <... futex resumed>)        = 0
[pid   333] <... futex resumed>)        = 0
[pid   336] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   333] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   334] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   339] <... futex resumed>)        = 0
[pid   341] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   339] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   334] <... futex resumed>)        = 0
[pid   342] <... openat resumed>)       = 5
[pid   341] <... openat resumed>)       = 5
[pid   342] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   341] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] <... futex resumed>)        = 1
[pid   339] <... futex resumed>)        = 0
[pid   337] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   334] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   345] close(4)                    = 0
[pid   342] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   341] <... futex resumed>)        = 1
[pid   339] exit_group(0 <unfinished ...>
[pid   337] <... openat resumed>)       = 5
[pid   336] <... futex resumed>)        = 0
[pid   345] close(3 <unfinished ...>
[pid   336] exit_group(0 <unfinished ...>
[pid   347] <... write resumed>)        = 1048576
[pid   345] <... close resumed>)        = 0
[pid   342] <... futex resumed>)        = ?
[pid   340] <... futex resumed>)        = 1
[pid   339] <... exit_group resumed>)   = ?
[pid   337] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   336] <... exit_group resumed>)   = ?
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   342] +++ exited with 0 +++
[pid   341] +++ exited with 0 +++
[pid   336] +++ exited with 0 +++
[pid   345] <... futex resumed>)        = 1
[pid   343] <... futex resumed>)        = 0
[pid   339] +++ exited with 0 +++
[pid   337] <... futex resumed>)        = 1
[pid   333] <... futex resumed>)        = 0
[pid   345] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   333] exit_group(0 <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=336, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=339, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   345] <... open resumed>)         = 3
[pid   343] <... futex resumed>)        = 0
[pid   333] <... exit_group resumed>)   = ?
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   345] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... open resumed>)         = 4
[pid   343] <... futex resumed>)        = 0
[pid   295] <... restart_syscall resumed>) = 0
[pid   294] <... restart_syscall resumed>) = 0
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   345] ftruncate(4, 33587195 <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   345] <... ftruncate resumed>)    = 0
[pid   343] <... futex resumed>)        = 0
[pid   295] <... openat resumed>)       = 3
[pid   294] <... openat resumed>)       = 3
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   345] <... futex resumed>)        = 0
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   295] <... ioctl resumed>)        = 0
[pid   294] <... ioctl resumed>)        = 0
[pid   345] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   347] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   345] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   343] <... futex resumed>)        = 0
[pid   340] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   337] +++ exited with 0 +++
[pid   333] +++ exited with 0 +++
[pid   295] <... close resumed>)        = 0
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   345] <... futex resumed>)        = 0
[pid   343] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=333, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   345] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   343] <... futex resumed>)        = 0
[pid   299] <... openat resumed>)       = 3
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 348
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 349
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 350
[pid   340] <... openat resumed>)       = 5
[pid   340] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   334] <... futex resumed>)        = 0
[pid   340] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   334] exit_group(0 <unfinished ...>
[pid   340] <... futex resumed>)        = ?
[pid   334] <... exit_group resumed>)   = ?
[pid   347] <... munmap resumed>)       = 0
[pid   340] +++ exited with 0 +++
[pid   334] +++ exited with 0 +++
[pid   347] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=334, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   347] <... openat resumed>)       = 4
[pid   347] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   347] ioctl(4, LOOP_CLR_FD)       = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   347] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   301] close(3 <unfinished ...>
[pid   347] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   301] <... close resumed>)        = 0
./strace-static-x86_64: Process 349 attached
[pid   347] close(4 <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   347] <... close resumed>)        = 0
./strace-static-x86_64: Process 350 attached
[pid   349] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   347] close(3 <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 351
./strace-static-x86_64: Process 351 attached
./strace-static-x86_64: Process 348 attached
[pid   350] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   349] <... set_robust_list resumed>) = 0
[pid   347] <... close resumed>)        = 0
[pid   351] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   350] <... set_robust_list resumed>) = 0
[pid   349] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   348] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   351] <... set_robust_list resumed>) = 0
[pid   350] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   349] <... prctl resumed>)        = 0
[pid   348] <... set_robust_list resumed>) = 0
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   350] <... prctl resumed>)        = 0
[pid   349] setpgid(0, 0 <unfinished ...>
[pid   348] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   346] <... futex resumed>)        = 0
[pid   351] <... prctl resumed>)        = 0
[pid   350] setpgid(0, 0 <unfinished ...>
[pid   349] <... setpgid resumed>)      = 0
[pid   348] <... prctl resumed>)        = 0
[pid   347] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] setpgid(0, 0 <unfinished ...>
[pid   350] <... setpgid resumed>)      = 0
[pid   349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   348] setpgid(0, 0 <unfinished ...>
[pid   347] <... open resumed>)         = 3
[pid   346] <... futex resumed>)        = 0
[pid   351] <... setpgid resumed>)      = 0
[pid   350] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   349] <... openat resumed>)       = 3
[pid   348] <... setpgid resumed>)      = 0
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   350] <... openat resumed>)       = 3
[pid   349] write(3, "1000", 4 <unfinished ...>
[pid   348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   346] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... openat resumed>)       = 3
[pid   350] write(3, "1000", 4 <unfinished ...>
[pid   349] <... write resumed>)        = 4
[pid   348] <... openat resumed>)       = 3
[pid   347] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] write(3, "1000", 4 <unfinished ...>
[pid   350] <... write resumed>)        = 4
[pid   349] close(3 <unfinished ...>
[pid   348] write(3, "1000", 4 <unfinished ...>
[pid   347] <... open resumed>)         = 4
[pid   346] <... futex resumed>)        = 0
[pid   351] <... write resumed>)        = 4
[pid   350] close(3 <unfinished ...>
[pid   349] <... close resumed>)        = 0
[pid   348] <... write resumed>)        = 4
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   351] close(3 <unfinished ...>
[pid   350] <... close resumed>)        = 0
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] close(3 <unfinished ...>
[pid   347] <... futex resumed>)        = 0
[pid   346] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... close resumed>)        = 0
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   349] <... futex resumed>)        = 0
[pid   348] <... close resumed>)        = 0
[pid   347] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   346] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   347] ftruncate(4, 33587195 <unfinished ...>
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   347] <... ftruncate resumed>)    = 0
[pid   348] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   346] <... futex resumed>)        = 0
[pid   348] <... mprotect resumed>)     = 0
[pid   347] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   347] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   346] <... futex resumed>)        = 0
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   347] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   351] <... futex resumed>)        = 0
[pid   350] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   349] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   348] <... clone resumed>, parent_tid=[352], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 352
[pid   351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   350] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   349] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   350] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   349] <... mprotect resumed>)     = 0
[pid   348] <... futex resumed>)        = 0
[pid   347] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   351] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   350] <... mprotect resumed>)     = 0
[pid   349] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] <... mprotect resumed>)     = 0
[pid   350] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   346] <... futex resumed>)        = 0
[pid   351] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   349] <... clone resumed>, parent_tid=[353], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 353
[pid   347] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... clone resumed>, parent_tid=[354], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 354
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   346] <... futex resumed>)        = 0
[pid   351] <... clone resumed>, parent_tid=[355], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 355
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   349] <... futex resumed>)        = 0
[pid   347] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 355 attached
./strace-static-x86_64: Process 354 attached
./strace-static-x86_64: Process 353 attached
./strace-static-x86_64: Process 352 attached
 <unfinished ...>
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   345] <... mmap resumed>)         = 0x20000000
[pid   355] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   354] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   353] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   352] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   351] <... futex resumed>)        = 0
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   355] <... set_robust_list resumed>) = 0
[pid   354] <... set_robust_list resumed>) = 0
[pid   353] <... set_robust_list resumed>) = 0
[pid   352] <... set_robust_list resumed>) = 0
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   355] memfd_create("syzkaller", 0 <unfinished ...>
[pid   354] memfd_create("syzkaller", 0 <unfinished ...>
[pid   353] memfd_create("syzkaller", 0 <unfinished ...>
[pid   352] memfd_create("syzkaller", 0 <unfinished ...>
[pid   355] <... memfd_create resumed>) = 3
[pid   354] <... memfd_create resumed>) = 3
[pid   353] <... memfd_create resumed>) = 3
[pid   352] <... memfd_create resumed>) = 3
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   354] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   353] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   352] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   345] <... futex resumed>)        = 1
[pid   343] <... futex resumed>)        = 0
[pid   355] <... mmap resumed>)         = 0x7efceeaa9000
[pid   354] <... mmap resumed>)         = 0x7efceeaa9000
[pid   353] <... mmap resumed>)         = 0x7efceeaa9000
[pid   352] <... mmap resumed>)         = 0x7efceeaa9000
[pid   345] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... mmap resumed>)         = 0x20000000
[pid   343] <... futex resumed>)        = 0
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   346] <... futex resumed>)        = 0
[pid   347] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   346] <... futex resumed>)        = 0
[pid   347] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   354] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   353] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   352] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   354] <... write resumed>)        = 1048576
[pid   353] <... write resumed>)        = 1048576
[pid   352] <... write resumed>)        = 1048576
[pid   354] munmap(0x7efceeaa9000, 1048576) = 0
[pid   354] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   354] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   354] ioctl(4, LOOP_CLR_FD)       = 0
[pid   353] munmap(0x7efceeaa9000, 1048576) = 0
[pid   353] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   353] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   353] ioctl(4, LOOP_CLR_FD)       = 0
[pid   352] munmap(0x7efceeaa9000, 1048576) = 0
[pid   354] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   354] close(4 <unfinished ...>
[pid   355] <... write resumed>)        = 1048576
[pid   354] <... close resumed>)        = 0
[pid   354] close(3)                    = 0
[pid   353] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   353] close(4)                    = 0
[pid   353] close(3 <unfinished ...>
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   354] <... futex resumed>)        = 1
[pid   354] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   354] <... futex resumed>)        = 1
[pid   354] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   354] <... futex resumed>)        = 1
[pid   354] ftruncate(4, 33587195 <unfinished ...>
[pid   352] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   352] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   352] ioctl(4, LOOP_CLR_FD)       = 0
[pid   355] munmap(0x7efceeaa9000, 1048576) = 0
[pid   353] <... close resumed>)        = 0
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   352] close(4)                    = 0
[pid   352] close(3 <unfinished ...>
[pid   355] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   352] <... close resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   353] <... futex resumed>)        = 1
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   353] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   349] <... futex resumed>)        = 0
[pid   353] <... open resumed>)         = 3
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   349] <... futex resumed>)        = 0
[pid   353] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   353] <... open resumed>)         = 4
[pid   349] <... futex resumed>)        = 0
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   353] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   353] ftruncate(4, 33587195 <unfinished ...>
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   348] <... futex resumed>)        = 0
[pid   352] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   355] <... openat resumed>)       = 4
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   355] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   352] <... open resumed>)         = 3
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   355] ioctl(4, LOOP_CLR_FD)       = 0
[pid   352] <... futex resumed>)        = 1
[pid   348] <... futex resumed>)        = 0
[pid   352] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] <... open resumed>)         = 4
[pid   348] <... futex resumed>)        = 0
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   352] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   352] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   348] <... futex resumed>)        = 0
[pid   352] ftruncate(4, 33587195 <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   355] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   355] close(4)                    = 0
[pid   355] close(3 <unfinished ...>
[pid   354] <... ftruncate resumed>)    = 0
[pid   353] <... ftruncate resumed>)    = 0
[pid   352] <... ftruncate resumed>)    = 0
[pid   345] <... madvise resumed>)      = 0
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   354] <... futex resumed>)        = 1
[pid   353] <... futex resumed>)        = 1
[pid   352] <... futex resumed>)        = 1
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   345] <... futex resumed>)        = 1
[pid   343] <... futex resumed>)        = 0
[pid   354] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   353] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   352] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   343] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   354] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   353] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   352] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   345] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   343] <... futex resumed>)        = 0
[pid   355] <... close resumed>)        = 0
[pid   354] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   353] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   352] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   345] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   343] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... openat resumed>)       = 5
[pid   345] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] <... futex resumed>)        = 0
[pid   355] <... futex resumed>)        = 1
[pid   355] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   354] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   353] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   352] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   347] <... madvise resumed>)      = 0
[pid   345] <... futex resumed>)        = 1
[pid   343] <... futex resumed>)        = 0
[pid   355] <... open resumed>)         = 3
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] <... futex resumed>)        = 0
[pid   345] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   343] exit_group(0 <unfinished ...>
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   354] <... futex resumed>)        = 1
[pid   353] <... futex resumed>)        = 1
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   345] <... futex resumed>)        = ?
[pid   343] <... exit_group resumed>)   = ?
[pid   355] <... futex resumed>)        = 0
[pid   354] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   353] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   352] <... futex resumed>)        = 1
[pid   351] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] <... futex resumed>)        = 0
[pid   345] +++ exited with 0 +++
[pid   355] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   355] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   354] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   353] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   352] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   346] <... futex resumed>)        = 0
[pid   343] +++ exited with 0 +++
[pid   355] <... open resumed>)         = 4
[pid   354] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   353] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   346] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   346] <... futex resumed>)        = 0
[pid   355] <... futex resumed>)        = 1
[pid   351] <... futex resumed>)        = 0
[pid   346] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   355] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=343, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   355] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... futex resumed>)        = 0
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   355] ftruncate(4, 33587195 <unfinished ...>
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   355] <... ftruncate resumed>)    = 0
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   351] <... futex resumed>)        = 0
[pid   355] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... futex resumed>)        = 0
[pid   355] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   355] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   351] <... futex resumed>)        = 0
[pid   355] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... futex resumed>)        = 0
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   355] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   347] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   347] <... openat resumed>)       = 5
[pid   300] close(3 <unfinished ...>
[pid   347] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   347] <... futex resumed>)        = 1
[pid   346] <... futex resumed>)        = 0
[pid   346] exit_group(0 <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 357
[pid   346] <... exit_group resumed>)   = ?
[pid   347] +++ exited with 0 +++
[pid   346] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=346, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 358
[pid   354] <... mmap resumed>)         = 0x20000000
./strace-static-x86_64: Process 357 attached
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] <... mmap resumed>)         = 0x20000000
[pid   357] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   354] <... futex resumed>)        = 1
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   357] <... set_robust_list resumed>) = 0
[pid   354] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   352] <... futex resumed>)        = 1
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] <... futex resumed>)        = 0
[pid   357] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   352] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   350] <... futex resumed>)        = 0
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] <... prctl resumed>)        = 0
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] <... futex resumed>)        = 0
[pid   357] setpgid(0, 0 <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   357] <... setpgid resumed>)      = 0
[pid   357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   357] write(3, "1000", 4)         = 4
[pid   357] close(3)                    = 0
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   357] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   357] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[359], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 359
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   353] <... mmap resumed>)         = 0x20000000
[pid   355] <... mmap resumed>)         = 0x20000000
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   351] <... futex resumed>)        = 0
[pid   355] <... futex resumed>)        = 1
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   355] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   351] <... futex resumed>)        = 0
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 358 attached
 <unfinished ...>
[pid   358] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   358] setpgid(0, 0)               = 0
[pid   358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] <... openat resumed>)       = 3
[pid   349] <... futex resumed>)        = 0
[pid   353] <... futex resumed>)        = 1
[pid   358] write(3, "1000", 4 <unfinished ...>
[pid   353] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] <... write resumed>)        = 4
[pid   349] <... futex resumed>)        = 0
[pid   358] close(3 <unfinished ...>
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   358] <... close resumed>)        = 0
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   358] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 359 attached
) = 0
[pid   359] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   358] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   359] <... set_robust_list resumed>) = 0
[pid   359] memfd_create("syzkaller", 0 <unfinished ...>
[pid   358] <... clone resumed>, parent_tid=[360], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 360
[pid   359] <... memfd_create resumed>) = 3
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   358] <... futex resumed>)        = 0
[pid   359] <... mmap resumed>)         = 0x7efceeaa9000
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 360 attached
 <unfinished ...>
[pid   360] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   360] memfd_create("syzkaller", 0) = 3
[pid   360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   355] <... madvise resumed>)      = 0
[pid   354] <... madvise resumed>)      = 0
[pid   353] <... madvise resumed>)      = 0
[pid   352] <... madvise resumed>)      = 0
[pid   359] <... write resumed>)        = 1048576
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   359] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   355] <... futex resumed>)        = 1
[pid   354] <... futex resumed>)        = 1
[pid   353] <... futex resumed>)        = 1
[pid   352] <... futex resumed>)        = 1
[pid   351] <... futex resumed>)        = 0
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   359] <... munmap resumed>)       = 0
[pid   355] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   354] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   353] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   352] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   351] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   350] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   349] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   348] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   359] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   355] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   354] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   353] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   352] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   351] <... futex resumed>)        = 0
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   359] <... openat resumed>)       = 4
[pid   355] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   354] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   353] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   352] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   351] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   350] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   349] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   348] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   359] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   355] <... openat resumed>)       = 5
[pid   354] <... openat resumed>)       = 5
[pid   353] <... openat resumed>)       = 5
[pid   352] <... openat resumed>)       = 5
[pid   359] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   355] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   354] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   353] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   352] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   359] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   355] <... futex resumed>)        = 1
[pid   354] <... futex resumed>)        = 1
[pid   353] <... futex resumed>)        = 1
[pid   352] <... futex resumed>)        = 1
[pid   351] <... futex resumed>)        = 0
[pid   350] <... futex resumed>)        = 0
[pid   349] <... futex resumed>)        = 0
[pid   348] <... futex resumed>)        = 0
[pid   359] <... ioctl resumed>)        = 0
[pid   355] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   354] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   353] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   352] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   351] exit_group(0 <unfinished ...>
[pid   350] exit_group(0 <unfinished ...>
[pid   349] exit_group(0 <unfinished ...>
[pid   348] exit_group(0 <unfinished ...>
[pid   355] <... futex resumed>)        = ?
[pid   354] <... futex resumed>)        = ?
[pid   353] <... futex resumed>)        = ?
[pid   352] <... futex resumed>)        = ?
[pid   351] <... exit_group resumed>)   = ?
[pid   350] <... exit_group resumed>)   = ?
[pid   349] <... exit_group resumed>)   = ?
[pid   348] <... exit_group resumed>)   = ?
[pid   360] <... write resumed>)        = 1048576
[pid   355] +++ exited with 0 +++
[pid   354] +++ exited with 0 +++
[pid   353] +++ exited with 0 +++
[pid   352] +++ exited with 0 +++
[pid   351] +++ exited with 0 +++
[pid   350] +++ exited with 0 +++
[pid   349] +++ exited with 0 +++
[pid   348] +++ exited with 0 +++
[pid   360] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=351, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=350, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=348, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=349, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   360] <... munmap resumed>)       = 0
[pid   359] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   360] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   359] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   360] <... openat resumed>)       = 4
[pid   359] close(4 <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   359] <... close resumed>)        = 0
[pid   301] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   299] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 361
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 362
./strace-static-x86_64: Process 362 attached
[pid   362] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   362] setpgid(0, 0)               = 0
[pid   362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   359] close(3 <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   294] <... openat resumed>)       = 3
[pid   362] <... openat resumed>)       = 3
[pid   362] write(3, "1000", 4)         = 4
[pid   362] close(3)                    = 0
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   359] <... close resumed>)        = 0
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   294] <... ioctl resumed>)        = 0
[pid   359] <... futex resumed>)        = 1
[pid   357] <... futex resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   359] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   359] <... open resumed>)         = 3
[pid   357] <... futex resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   362] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   357] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   359] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 363
[pid   359] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   357] <... futex resumed>)        = 0
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 364
[pid   359] <... open resumed>)         = 4
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   362] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   362] <... mprotect resumed>)     = 0
[pid   359] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   359] ftruncate(4, 33587195 <unfinished ...>
[pid   357] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 361 attached
 <unfinished ...>
[pid   362] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   360] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   359] <... ftruncate resumed>)    = 0
[pid   361] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   360] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   362] <... clone resumed>, parent_tid=[365], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 365
[pid   361] <... set_robust_list resumed>) = 0
[pid   357] <... futex resumed>)        = 0
[pid   359] <... futex resumed>)        = 1
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   362] <... futex resumed>)        = 0
[pid   361] <... prctl resumed>)        = 0
[pid   359] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   361] setpgid(0, 0 <unfinished ...>
[pid   357] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] <... setpgid resumed>)      = 0
[pid   360] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   360] <... ioctl resumed>)        = 0
[pid   359] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   361] write(3, "1000", 4 <unfinished ...>
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] <... write resumed>)        = 4
[pid   359] <... futex resumed>)        = 1
[pid   357] <... futex resumed>)        = 0
[pid   361] close(3 <unfinished ...>
[pid   359] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] <... close resumed>)        = 0
[pid   359] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   357] <... futex resumed>)        = 0
[pid   359] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   361] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   361] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[366], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 366
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 365 attached
 <unfinished ...>
[pid   360] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   360] close(4)                    = 0
[pid   360] close(3 <unfinished ...>
[pid   365] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   365] memfd_create("syzkaller", 0) = 3
[pid   365] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   360] <... close resumed>)        = 0
./strace-static-x86_64: Process 366 attached
[pid   366] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   366] memfd_create("syzkaller", 0) = 3
./strace-static-x86_64: Process 364 attached
./strace-static-x86_64: Process 363 attached
[pid   366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   364] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   363] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   363] <... set_robust_list resumed>) = 0
[pid   360] <... futex resumed>)        = 1
[pid   358] <... futex resumed>)        = 0
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] <... prctl resumed>)        = 0
[pid   363] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   358] <... futex resumed>)        = 0
[pid   364] setpgid(0, 0 <unfinished ...>
[pid   363] <... prctl resumed>)        = 0
[pid   360] <... open resumed>)         = 3
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   364] <... setpgid resumed>)      = 0
[pid   363] setpgid(0, 0 <unfinished ...>
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   363] <... setpgid resumed>)      = 0
[pid   360] <... futex resumed>)        = 1
[pid   358] <... futex resumed>)        = 0
[pid   366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   364] <... openat resumed>)       = 3
[pid   363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] write(3, "1000", 4 <unfinished ...>
[pid   363] <... openat resumed>)       = 3
[pid   360] <... open resumed>)         = 4
[pid   358] <... futex resumed>)        = 0
[pid   364] <... write resumed>)        = 4
[pid   363] write(3, "1000", 4 <unfinished ...>
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   364] close(3 <unfinished ...>
[pid   363] <... write resumed>)        = 4
[pid   360] <... futex resumed>)        = 0
[pid   358] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   364] <... close resumed>)        = 0
[pid   363] close(3 <unfinished ...>
[pid   360] ftruncate(4, 33587195 <unfinished ...>
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   363] <... close resumed>)        = 0
[pid   358] <... futex resumed>)        = 0
[pid   364] <... futex resumed>)        = 0
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   364] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   364] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   363] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   365] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   364] <... mprotect resumed>)     = 0
[pid   363] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   364] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   363] <... mprotect resumed>)     = 0
[pid   363] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   360] <... ftruncate resumed>)    = 0
[pid   364] <... clone resumed>, parent_tid=[367], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 367
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   360] <... futex resumed>)        = 1
[pid   358] <... futex resumed>)        = 0
[pid   364] <... futex resumed>)        = 0
[pid   363] <... clone resumed>, parent_tid=[368], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 368
[pid   360] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   366] <... write resumed>)        = 1048576
[pid   365] <... write resumed>)        = 1048576
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   360] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   358] <... futex resumed>)        = 0
[pid   363] <... futex resumed>)        = 0
[pid   360] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   360] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   358] <... futex resumed>)        = 0
./strace-static-x86_64: Process 368 attached
[pid   368] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   368] memfd_create("syzkaller", 0) = 3
[pid   368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   360] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   358] <... futex resumed>)        = 0
[pid   365] munmap(0x7efceeaa9000, 1048576) = 0
[pid   365] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   365] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   365] ioctl(4, LOOP_CLR_FD)       = 0
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   366] munmap(0x7efceeaa9000, 1048576) = 0
[pid   366] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   365] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   366] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   365] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   366] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   365] close(4 <unfinished ...>
[pid   366] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   365] <... close resumed>)        = 0
[pid   366] <... ioctl resumed>)        = 0
[pid   365] close(3)                    = 0
./strace-static-x86_64: Process 367 attached
[pid   367] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] memfd_create("syzkaller", 0 <unfinished ...>
[pid   366] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   366] close(4)                    = 0
[pid   365] <... futex resumed>)        = 1
[pid   367] <... memfd_create resumed>) = 3
[pid   362] <... futex resumed>)        = 0
[pid   367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   366] close(3 <unfinished ...>
[pid   365] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] <... mmap resumed>)         = 0x7efceeaa9000
[pid   366] <... close resumed>)        = 0
[pid   365] <... open resumed>)         = 3
[pid   362] <... futex resumed>)        = 0
[pid   357] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   357] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   366] <... futex resumed>)        = 1
[pid   365] <... futex resumed>)        = 0
[pid   362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   361] <... futex resumed>)        = 0
[pid   357] <... futex resumed>)        = 0
[pid   366] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   365] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   365] <... open resumed>)         = 4
[pid   362] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   357] <... mmap resumed>)         = 0x7efceeb88000
[pid   368] <... write resumed>)        = 1048576
[pid   366] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   357] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   366] <... open resumed>)         = 3
[pid   365] <... futex resumed>)        = 0
[pid   362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   357] <... mprotect resumed>)     = 0
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] ftruncate(4, 33587195 <unfinished ...>
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   366] <... futex resumed>)        = 1
[pid   365] <... ftruncate resumed>)    = 0
[pid   362] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   366] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] <... clone resumed>, parent_tid=[369], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 369
[pid   366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   365] <... futex resumed>)        = 0
[pid   362] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   361] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   366] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   365] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   357] <... futex resumed>)        = 0
[pid   366] <... open resumed>)         = 4
[pid   365] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   362] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   366] <... futex resumed>)        = 1
[pid   365] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   361] <... futex resumed>)        = 0
[pid   366] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 369 attached
 <unfinished ...>
[pid   366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   365] <... futex resumed>)        = 1
[pid   362] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   369] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   366] ftruncate(4, 33587195 <unfinished ...>
[pid   365] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   369] <... set_robust_list resumed>) = 0
[pid   368] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   366] <... ftruncate resumed>)    = 0
[pid   365] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   362] <... futex resumed>)        = 0
[pid   369] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   368] <... munmap resumed>)       = 0
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   368] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   366] <... futex resumed>)        = 1
[pid   361] <... futex resumed>)        = 0
[pid   360] <... mmap resumed>)         = 0x20000000
[pid   368] <... openat resumed>)       = 4
[pid   366] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   366] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   361] <... futex resumed>)        = 0
[pid   368] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   366] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   368] ioctl(4, LOOP_CLR_FD)       = 0
[pid   368] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   368] close(4)                    = 0
[pid   368] close(3)                    = 0
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   363] <... futex resumed>)        = 0
[pid   368] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] <... open resumed>)         = 3
[pid   363] <... futex resumed>)        = 0
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   359] <... mmap resumed>)         = 0x20000000
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   360] <... futex resumed>)        = 1
[pid   358] <... futex resumed>)        = 0
[pid   368] <... futex resumed>)        = 1
[pid   363] <... futex resumed>)        = 0
[pid   360] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] <... futex resumed>)        = 0
[pid   368] <... open resumed>)         = 4
[pid   363] <... futex resumed>)        = 0
[pid   359] <... futex resumed>)        = 0
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   367] <... write resumed>)        = 1048576
[pid   359] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   368] <... futex resumed>)        = 0
[pid   367] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   363] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   368] ftruncate(4, 33587195 <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] <... munmap resumed>)       = 0
[pid   363] <... futex resumed>)        = 0
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   367] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   367] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   367] ioctl(4, LOOP_CLR_FD)       = 0
[pid   367] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   367] close(4)                    = 0
[pid   367] close(3)                    = 0
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] <... futex resumed>)        = 0
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   367] <... futex resumed>)        = 1
[pid   367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] <... futex resumed>)        = 0
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   367] <... futex resumed>)        = 1
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   364] <... futex resumed>)        = 0
[pid   367] ftruncate(4, 33587195 <unfinished ...>
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   369] <... madvise resumed>)      = 0
[pid   369] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   366] <... sendfile resumed>)     = 4
[pid   357] <... futex resumed>)        = 0
[pid   357] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   359] <... futex resumed>)        = 0
[pid   357] <... futex resumed>)        = 1
[pid   359] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   357] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   359] <... openat resumed>)       = 5
[pid   359] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   357] <... futex resumed>)        = 0
[pid   359] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   357] exit_group(0 <unfinished ...>
[pid   359] <... futex resumed>)        = ?
[pid   357] <... exit_group resumed>)   = ?
[pid   359] +++ exited with 0 +++
[pid   369] <... futex resumed>)        = ?
[pid   369] +++ exited with 0 +++
[pid   368] <... ftruncate resumed>)    = 0
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   357] +++ exited with 0 +++
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   366] <... futex resumed>)        = 1
[pid   368] <... futex resumed>)        = 1
[pid   363] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=357, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   300] <... openat resumed>)       = 3
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] close(3 <unfinished ...>
[pid   368] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   366] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 370
./strace-static-x86_64: Process 370 attached
[pid   370] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   370] setpgid(0, 0)               = 0
[pid   370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   370] write(3, "1000", 4)         = 4
[pid   370] close(3)                    = 0
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   370] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   370] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[371], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 371
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 371 attached
 <unfinished ...>
[pid   371] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   371] memfd_create("syzkaller", 0) = 3
[pid   371] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   371] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   362] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   362] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   362] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   362] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[372], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 372
[pid   362] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   371] <... write resumed>)        = 1048576
[pid   362] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   371] munmap(0x7efceeaa9000, 1048576) = 0
[pid   371] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   371] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   371] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 372 attached
[pid   372] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   372] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   360] <... madvise resumed>)      = 0
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] <... futex resumed>)        = 0
[pid   367] <... ftruncate resumed>)    = 0
[pid   358] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   368] <... sendfile resumed>)     = 4
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   360] <... futex resumed>)        = 1
[pid   360] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   360] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   358] <... futex resumed>)        = 0
[pid   358] exit_group(0)               = ?
[pid   371] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   371] close(4)                    = 0
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] <... futex resumed>)        = 1
[pid   364] <... futex resumed>)        = 0
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   371] close(3 <unfinished ...>
[pid   368] <... futex resumed>)        = 1
[pid   363] <... futex resumed>)        = 0
[pid   368] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   367] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   368] <... futex resumed>)        = 0
[pid   368] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   371] <... close resumed>)        = 0
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   371] <... futex resumed>)        = 1
[pid   371] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   371] <... futex resumed>)        = 1
[pid   371] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   371] <... futex resumed>)        = 1
[pid   371] ftruncate(4, 33587195 <unfinished ...>
[pid   360] <... futex resumed>)        = ?
[pid   360] +++ exited with 0 +++
[pid   358] +++ exited with 0 +++
[pid   367] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=358, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   364] <... futex resumed>)        = 0
[pid   367] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   367] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   364] <... futex resumed>)        = 0
[pid   367] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3 <unfinished ...>
[pid   371] <... ftruncate resumed>)    = 0
[pid   293] <... close resumed>)        = 0
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   370] <... futex resumed>)        = 0
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 373
[pid   371] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   370] <... futex resumed>)        = 0
[pid   371] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   370] <... futex resumed>)        = 0
[pid   371] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   361] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   365] <... mmap resumed>)         = 0x20000000
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   371] <... mmap resumed>)         = 0x20000000
./strace-static-x86_64: Process 373 attached
[pid   365] <... futex resumed>)        = 0
[pid   373] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   373] <... set_robust_list resumed>) = 0
[pid   371] <... futex resumed>)        = 1
[pid   370] <... futex resumed>)        = 0
[pid   371] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   361] <... mmap resumed>)         = 0x7efceeb88000
[pid   373] <... prctl resumed>)        = 0
[pid   366] <... mmap resumed>)         = 0x20000000
[pid   361] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   373] setpgid(0, 0 <unfinished ...>
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] <... mprotect resumed>)     = 0
[pid   373] <... setpgid resumed>)      = 0
[pid   366] <... futex resumed>)        = 0
[pid   361] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 374 attached
 <unfinished ...>
[pid   373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   368] <... mmap resumed>)         = 0x20000000
[pid   367] <... mmap resumed>)         = 0x20000000
[pid   366] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   361] <... clone resumed>, parent_tid=[374], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 374
[pid   373] <... openat resumed>)       = 3
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] write(3, "1000", 4 <unfinished ...>
[pid   367] <... futex resumed>)        = 1
[pid   364] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   373] <... write resumed>)        = 4
[pid   367] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] close(3 <unfinished ...>
[pid   364] <... futex resumed>)        = 0
[pid   374] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   373] <... close resumed>)        = 0
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   374] <... set_robust_list resumed>) = 0
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   373] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   373] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[375], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 375
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] <... futex resumed>)        = 1
[pid   363] <... futex resumed>)        = 0
[pid   373] <... futex resumed>)        = 0
[pid   368] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   363] <... futex resumed>)        = 0
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 375 attached
 <unfinished ...>
[pid   375] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   375] memfd_create("syzkaller", 0) = 3
[pid   375] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   362] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   362] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] <... futex resumed>)        = 0
[pid   362] <... futex resumed>)        = 1
[pid   362] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   375] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   375] munmap(0x7efceeaa9000, 1048576) = 0
[pid   375] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   375] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   375] ioctl(4, LOOP_CLR_FD)       = 0
[pid   375] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   375] close(4)                    = 0
[pid   375] close(3)                    = 0
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   375] <... futex resumed>)        = 1
[pid   375] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   375] <... futex resumed>)        = 1
[pid   375] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   375] <... futex resumed>)        = 1
[pid   375] ftruncate(4, 33587195 <unfinished ...>
[pid   365] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   365] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   362] <... futex resumed>)        = 0
[pid   365] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] <... madvise resumed>)      = 0
[pid   371] <... madvise resumed>)      = 0
[pid   367] <... madvise resumed>)      = 0
[pid   374] <... madvise resumed>)      = 0
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] <... madvise resumed>)      = 0
[pid   374] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   374] <... futex resumed>)        = 1
[pid   371] <... futex resumed>)        = 1
[pid   370] <... futex resumed>)        = 0
[pid   368] <... futex resumed>)        = 1
[pid   367] <... futex resumed>)        = 1
[pid   364] <... futex resumed>)        = 0
[pid   363] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   375] <... ftruncate resumed>)    = 0
[pid   374] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   367] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   361] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   375] <... futex resumed>)        = 1
[pid   373] <... futex resumed>)        = 0
[pid   372] <... futex resumed>)        = 0
[pid   370] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   367] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   366] <... futex resumed>)        = 0
[pid   364] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   363] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   361] <... futex resumed>)        = 1
[pid   375] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   371] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   370] <... futex resumed>)        = 0
[pid   368] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   367] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   366] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   364] <... futex resumed>)        = 0
[pid   363] <... futex resumed>)        = 0
[pid   361] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   371] <... openat resumed>)       = 5
[pid   370] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   364] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   363] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   371] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   370] <... futex resumed>)        = 0
[pid   371] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   370] exit_group(0 <unfinished ...>
[pid   371] <... futex resumed>)        = ?
[pid   370] <... exit_group resumed>)   = ?
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   368] <... openat resumed>)       = 5
[pid   367] <... openat resumed>)       = 5
[pid   366] <... openat resumed>)       = 5
[pid   362] exit_group(0 <unfinished ...>
[pid   371] +++ exited with 0 +++
[pid   370] +++ exited with 0 +++
[pid   372] <... futex resumed>)        = ?
[pid   368] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   367] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   366] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   365] <... futex resumed>)        = ?
[pid   362] <... exit_group resumed>)   = ?
[pid   375] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   368] <... futex resumed>)        = 1
[pid   367] <... futex resumed>)        = 1
[pid   366] <... futex resumed>)        = 1
[pid   365] +++ exited with 0 +++
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   364] <... futex resumed>)        = 0
[pid   363] <... futex resumed>)        = 0
[pid   361] <... futex resumed>)        = 0
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   368] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   367] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   366] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   364] exit_group(0 <unfinished ...>
[pid   363] exit_group(0 <unfinished ...>
[pid   361] exit_group(0 <unfinished ...>
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   375] <... futex resumed>)        = 1
[pid   374] <... futex resumed>)        = ?
[pid   373] <... futex resumed>)        = 0
[pid   368] <... futex resumed>)        = ?
[pid   367] <... futex resumed>)        = ?
[pid   366] <... futex resumed>)        = ?
[pid   364] <... exit_group resumed>)   = ?
[pid   363] <... exit_group resumed>)   = ?
[pid   361] <... exit_group resumed>)   = ?
[pid   300] <... restart_syscall resumed>) = 0
[pid   375] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   374] +++ exited with 0 +++
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   368] +++ exited with 0 +++
[pid   367] +++ exited with 0 +++
[pid   366] +++ exited with 0 +++
[pid   364] +++ exited with 0 +++
[pid   361] +++ exited with 0 +++
[pid   373] <... futex resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=361, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=364, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   300] <... ioctl resumed>)        = 0
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   363] +++ exited with 0 +++
[pid   301] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 376
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 377
[pid   295] <... restart_syscall resumed>) = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   295] <... openat resumed>)       = 3
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
[pid   295] <... ioctl resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 378
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 379
./strace-static-x86_64: Process 378 attached
[pid   378] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   378] setpgid(0, 0)               = 0
[pid   378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   378] write(3, "1000", 4)         = 4
[pid   378] close(3)                    = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   378] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   378] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[380], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 380
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 376 attached
 <unfinished ...>
[pid   376] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   376] setpgid(0, 0)               = 0
[pid   376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   376] write(3, "1000", 4)         = 4
[pid   376] close(3)                    = 0
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   376] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   376] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[381], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 381
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 380 attached
 <unfinished ...>
[pid   380] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   380] memfd_create("syzkaller", 0) = 3
[pid   380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   372] +++ exited with 0 +++
[pid   362] +++ exited with 0 +++
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=362, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   299] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 379 attached
 <unfinished ...>
[pid   379] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   299] <... restart_syscall resumed>) = 0
[pid   379] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   379] <... prctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 377 attached
 <unfinished ...>
[pid   379] setpgid(0, 0 <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 382
[pid   379] <... setpgid resumed>)      = 0
[pid   377] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   377] <... set_robust_list resumed>) = 0
[pid   379] <... openat resumed>)       = 3
[pid   379] write(3, "1000", 4 <unfinished ...>
[pid   377] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   379] <... write resumed>)        = 4
[pid   377] <... prctl resumed>)        = 0
[pid   379] close(3 <unfinished ...>
[pid   377] setpgid(0, 0 <unfinished ...>
[pid   379] <... close resumed>)        = 0
[pid   377] <... setpgid resumed>)      = 0
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   379] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   379] <... mprotect resumed>)     = 0
[pid   377] <... openat resumed>)       = 3
[pid   379] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[383], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 383
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   377] write(3, "1000", 4./strace-static-x86_64: Process 382 attached
 <unfinished ...>
[pid   382] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   382] setpgid(0, 0)               = 0
[pid   382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   382] write(3, "1000", 4)         = 4
[pid   382] close(3)                    = 0
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   382] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   382] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[384], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 384
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   380] <... write resumed>)        = 1048576
[pid   380] munmap(0x7efceeaa9000, 1048576) = 0
[pid   380] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   380] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   380] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 384 attached
[pid   384] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   384] memfd_create("syzkaller", 0) = 3
[pid   384] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   379] <... futex resumed>)        = 0
[pid   377] <... write resumed>)        = 4
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   377] close(3)                    = 0
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 381 attached
[pid   380] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   380] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   380] close(4)                    = 0
[pid   380] close(3 <unfinished ...>
[pid   381] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   377] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   377] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   381] <... set_robust_list resumed>) = 0
[pid   377] <... mprotect resumed>)     = 0
[pid   377] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   381] memfd_create("syzkaller", 0) = 3
[pid   377] <... clone resumed>, parent_tid=[385], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 385
[pid   381] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   380] <... close resumed>)        = 0
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   380] <... futex resumed>)        = 1
[pid   380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   380] <... futex resumed>)        = 1
[pid   380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   380] <... futex resumed>)        = 1
[pid   380] ftruncate(4, 33587195 <unfinished ...>
[pid   381] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 383 attached
 <unfinished ...>
[pid   383] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   380] <... ftruncate resumed>)    = 0
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   380] <... futex resumed>)        = 1
[pid   380] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   383] <... set_robust_list resumed>) = 0
[pid   380] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   380] <... futex resumed>)        = 1
[pid   380] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   383] memfd_create("syzkaller", 0./strace-static-x86_64: Process 385 attached
) = 3
[pid   385] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   383] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   385] <... set_robust_list resumed>) = 0
[pid   383] <... mmap resumed>)         = 0x7efceeaa9000
[pid   383] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   385] memfd_create("syzkaller", 0) = 3
[pid   385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   373] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   373] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   373] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   373] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[386], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 386
[pid   373] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   373] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   384] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   381] <... write resumed>)        = 1048576
[pid   383] <... write resumed>)        = 1048576
./strace-static-x86_64: Process 386 attached
[pid   386] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   386] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   384] <... write resumed>)        = 1048576
[pid   384] munmap(0x7efceeaa9000, 1048576) = 0
[pid   384] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   384] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   384] ioctl(4, LOOP_CLR_FD)       = 0
[pid   385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   384] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   384] close(4)                    = 0
[pid   384] close(3)                    = 0
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   382] <... futex resumed>)        = 0
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   384] <... futex resumed>)        = 1
[pid   384] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   382] <... futex resumed>)        = 0
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   384] <... futex resumed>)        = 1
[pid   384] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   382] <... futex resumed>)        = 0
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   384] <... futex resumed>)        = 1
[pid   384] ftruncate(4, 33587195 <unfinished ...>
[pid   381] munmap(0x7efceeaa9000, 1048576) = 0
[pid   381] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   381] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   383] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   381] ioctl(4, LOOP_CLR_FD)       = 0
[pid   383] <... munmap resumed>)       = 0
[pid   383] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   383] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   383] ioctl(4, LOOP_CLR_FD)       = 0
[pid   381] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   381] close(4)                    = 0
[pid   381] close(3)                    = 0
[pid   378] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   378] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 0
[pid   378] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   383] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   381] <... futex resumed>)        = 1
[pid   378] <... mmap resumed>)         = 0x7efceeb88000
[pid   376] <... futex resumed>)        = 0
[pid   378] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... mprotect resumed>)     = 0
[pid   376] <... futex resumed>)        = 0
[pid   378] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   383] close(4 <unfinished ...>
[pid   381] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   378] <... clone resumed>, parent_tid=[387], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 387
[pid   378] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   383] <... close resumed>)        = 0
[pid   381] <... open resumed>)         = 3
[pid   380] <... mmap resumed>)         = 0x20000000
[pid   378] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   383] close(3 <unfinished ...>
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] <... write resumed>)        = 1048576
[pid   383] <... close resumed>)        = 0
[pid   381] <... futex resumed>)        = 1
[pid   376] <... futex resumed>)        = 0
[pid   375] <... mmap resumed>)         = 0x20000000
[pid   373] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} <unfinished ...>
[pid   385] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   376] <... futex resumed>)        = 0
[pid   375] <... futex resumed>)        = 0
[pid   373] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   385] <... munmap resumed>)       = 0
[pid   383] <... futex resumed>)        = 1
[pid   381] <... open resumed>)         = 4
[pid   379] <... futex resumed>)        = 0
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   375] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   373] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   383] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   375] <... openat resumed>)       = 5
[pid   373] <... futex resumed>)        = 0
[pid   379] <... futex resumed>)        = 0
[pid   375] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   375] <... futex resumed>)        = 0
[pid   373] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   375] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] <... openat resumed>)       = 4
[pid   384] <... ftruncate resumed>)    = 0
[pid   383] <... open resumed>)         = 3
[pid   381] <... futex resumed>)        = 1
[pid   376] <... futex resumed>)        = 0
./strace-static-x86_64: Process 387 attached
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] ftruncate(4, 33587195 <unfinished ...>
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   384] <... futex resumed>)        = 1
[pid   382] <... futex resumed>)        = 0
[pid   381] <... ftruncate resumed>)    = 0
[pid   376] <... futex resumed>)        = 0
[pid   379] <... futex resumed>)        = 0
[pid   383] <... futex resumed>)        = 1
[pid   385] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   387] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   386] <... madvise resumed>)      = 0
[pid   384] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   387] <... set_robust_list resumed>) = 0
[pid   386] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   384] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   383] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   382] <... futex resumed>)        = 0
[pid   381] <... futex resumed>)        = 0
[pid   379] <... futex resumed>)        = 0
[pid   376] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   373] exit_group(0 <unfinished ...>
[pid   386] <... futex resumed>)        = ?
[pid   385] <... ioctl resumed>)        = 0
[pid   384] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   383] <... open resumed>)         = 4
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   381] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   375] <... futex resumed>)        = ?
[pid   373] <... exit_group resumed>)   = ?
[pid   387] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   386] +++ exited with 0 +++
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   379] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   376] <... futex resumed>)        = 0
[pid   375] +++ exited with 0 +++
[pid   383] <... futex resumed>)        = 0
[pid   381] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] ftruncate(4, 33587195 <unfinished ...>
[pid   379] <... futex resumed>)        = 0
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   385] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   385] close(4)                    = 0
[pid   384] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   380] <... futex resumed>)        = 0
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] +++ exited with 0 +++
[pid   385] close(3 <unfinished ...>
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] <... ftruncate resumed>)    = 0
[pid   381] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   380] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=373, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   384] <... futex resumed>)        = 1
[pid   382] <... futex resumed>)        = 0
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   384] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   384] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   382] <... futex resumed>)        = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   384] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   385] <... close resumed>)        = 0
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] <... futex resumed>)        = 1
[pid   376] <... futex resumed>)        = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] <... futex resumed>)        = 1
[pid   381] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   379] <... futex resumed>)        = 0
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   385] <... futex resumed>)        = 1
[pid   383] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   381] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   377] <... futex resumed>)        = 0
[pid   376] <... futex resumed>)        = 0
[pid   293] close(3 <unfinished ...>
[pid   385] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   383] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   381] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   379] <... futex resumed>)        = 0
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   385] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   383] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   377] <... futex resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   385] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 388
[pid   385] <... open resumed>)         = 3
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   377] <... futex resumed>)        = 0
[pid   385] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] <... open resumed>)         = 4
[pid   377] <... futex resumed>)        = 0
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   385] <... futex resumed>)        = 0
[pid   377] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   385] ftruncate(4, 33587195 <unfinished ...>
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 388 attached
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   388] setpgid(0, 0)               = 0
[pid   388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   387] <... madvise resumed>)      = 0
[pid   383] <... sendfile resumed>)     = 4
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   379] <... futex resumed>)        = 0
[pid   387] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   379] <... futex resumed>)        = 0
[pid   383] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] write(3, "1000", 4)         = 4
[pid   388] close(3)                    = 0
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   388] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   388] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   387] <... futex resumed>)        = 1
[pid   378] <... futex resumed>)        = 0
[pid   378] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] <... clone resumed>, parent_tid=[389], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 389
[pid   387] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   380] <... futex resumed>)        = 0
[pid   378] <... futex resumed>)        = 1
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   385] <... ftruncate resumed>)    = 0
[pid   380] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   380] <... openat resumed>)       = 5
[pid   380] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] <... futex resumed>)        = 1
[pid   380] <... futex resumed>)        = 1
[pid   378] <... futex resumed>)        = 0
[pid   377] <... futex resumed>)        = 0
[pid   380] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   378] exit_group(0 <unfinished ...>
[pid   385] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   380] <... futex resumed>)        = ?
[pid   378] <... exit_group resumed>)   = ?
[pid   377] <... futex resumed>)        = 0
[pid   380] +++ exited with 0 +++
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   387] <... futex resumed>)        = ?
[pid   385] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   377] <... futex resumed>)        = 0
[pid   385] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   377] <... futex resumed>)        = 0
[pid   385] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 389 attached
 <unfinished ...>
[pid   389] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   389] memfd_create("syzkaller", 0) = 3
[pid   389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   387] +++ exited with 0 +++
[pid   378] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=378, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 390
[pid   389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 390 attached
 <unfinished ...>
[pid   390] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   390] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   390] setpgid(0, 0)               = 0
[pid   390] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   390] write(3, "1000", 4)         = 4
[pid   390] close(3)                    = 0
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   390] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   390] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   390] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[391], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 391
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   383] <... mmap resumed>)         = 0x20000000
[pid   389] <... write resumed>)        = 1048576
[pid   389] munmap(0x7efceeaa9000, 1048576) = 0
[pid   389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   389] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   389] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 391 attached
[pid   391] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   385] <... mmap resumed>)         = 0x20000000
[pid   391] memfd_create("syzkaller", 0) = 3
[pid   391] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   389] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   389] close(4)                    = 0
[pid   389] close(3 <unfinished ...>
[pid   382] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   382] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   382] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   382] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   385] <... futex resumed>)        = 1
[pid   377] <... futex resumed>)        = 0
[pid   382] <... clone resumed>, parent_tid=[392], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 392
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   385] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   382] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   377] <... futex resumed>)        = 0
[pid   382] <... futex resumed>)        = 0
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   376] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   389] <... close resumed>)        = 0
[pid   382] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   381] <... mmap resumed>)         = 0x20000000
[pid   376] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   376] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] <... mprotect resumed>)     = 0
[pid   389] <... futex resumed>)        = 1
[pid   388] <... futex resumed>)        = 0
[pid   376] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   389] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] <... open resumed>)         = 3
[pid   388] <... futex resumed>)        = 0
[pid   376] <... clone resumed>, parent_tid=[393], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 393
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   376] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] <... futex resumed>)        = 0
[pid   388] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   376] <... futex resumed>)        = 0
[pid   389] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   376] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   389] <... open resumed>)         = 4
[pid   388] <... futex resumed>)        = 0
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   389] <... futex resumed>)        = 0
[pid   388] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   391] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   389] ftruncate(4, 33587195 <unfinished ...>
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 392 attached
 <unfinished ...>
[pid   392] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   392] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   391] <... write resumed>)        = 1048576
[pid   391] munmap(0x7efceeaa9000, 1048576) = 0
[pid   383] <... futex resumed>)        = 1
[pid   381] <... futex resumed>)        = 0
[pid   379] <... futex resumed>)        = 0
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   381] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   379] <... futex resumed>)        = 0
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   391] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   391] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   391] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 393 attached
[pid   393] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   393] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   391] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   391] close(4)                    = 0
[pid   391] close(3)                    = 0
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   390] <... futex resumed>)        = 0
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   391] <... futex resumed>)        = 1
[pid   391] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   390] <... futex resumed>)        = 0
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   391] <... futex resumed>)        = 1
[pid   391] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   390] <... futex resumed>)        = 0
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   391] <... futex resumed>)        = 1
[pid   391] ftruncate(4, 33587195 <unfinished ...>
[pid   384] <... mmap resumed>)         = 0x20000000
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   384] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   385] <... madvise resumed>)      = 0
[pid   389] <... ftruncate resumed>)    = 0
[pid   392] <... madvise resumed>)      = 0
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   393] <... madvise resumed>)      = 0
[pid   392] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] <... futex resumed>)        = 1
[pid   388] <... futex resumed>)        = 0
[pid   385] <... futex resumed>)        = 1
[pid   383] <... madvise resumed>)      = 0
[pid   377] <... futex resumed>)        = 0
[pid   391] <... ftruncate resumed>)    = 0
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   377] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   392] <... futex resumed>)        = 1
[pid   389] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   382] <... futex resumed>)        = 0
[pid   377] <... futex resumed>)        = 0
[pid   383] <... futex resumed>)        = 1
[pid   379] <... futex resumed>)        = 0
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   393] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   392] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   382] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   379] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   377] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   393] <... futex resumed>)        = 1
[pid   383] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   379] <... futex resumed>)        = 0
[pid   376] <... futex resumed>)        = 0
[pid   393] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   391] <... futex resumed>)        = 1
[pid   390] <... futex resumed>)        = 0
[pid   389] <... sendfile resumed>)     = 4
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   385] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   384] <... futex resumed>)        = 0
[pid   383] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid   382] <... futex resumed>)        = 1
[pid   379] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   376] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   391] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   382] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   381] <... futex resumed>)        = 0
[pid   376] <... futex resumed>)        = 1
[pid   389] <... futex resumed>)        = 1
[pid   388] <... futex resumed>)        = 0
[pid   389] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   381] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   376] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   383] <... futex resumed>)        = 1
[pid   379] <... futex resumed>)        = 0
[pid   388] <... futex resumed>)        = 0
[pid   385] <... openat resumed>)       = 5
[pid   384] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   383] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   381] <... openat resumed>)       = 5
[pid   379] exit_group(0 <unfinished ...>
[pid   391] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   383] <... futex resumed>)        = ?
[pid   381] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   379] <... exit_group resumed>)   = ?
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   383] +++ exited with 0 +++
[pid   381] <... futex resumed>)        = 1
[pid   379] +++ exited with 0 +++
[pid   376] <... futex resumed>)        = 0
[pid   391] <... futex resumed>)        = 1
[pid   390] <... futex resumed>)        = 0
[pid   381] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   376] exit_group(0 <unfinished ...>
[pid   393] <... futex resumed>)        = ?
[pid   391] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   381] <... futex resumed>)        = ?
[pid   376] <... exit_group resumed>)   = ?
[pid   393] +++ exited with 0 +++
[pid   390] <... futex resumed>)        = 0
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   381] +++ exited with 0 +++
[pid   376] +++ exited with 0 +++
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=376, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=379, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   384] <... openat resumed>)       = 5
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   295] <... openat resumed>)       = 3
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   295] <... ioctl resumed>)        = 0
[pid   300] close(3 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   384] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   384] <... futex resumed>)        = 1
[pid   384] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   382] <... futex resumed>)        = 0
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 394
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 395
[pid   382] exit_group(0)               = ?
[pid   392] <... futex resumed>)        = ?
[pid   392] +++ exited with 0 +++
[pid   384] <... futex resumed>)        = ?
[pid   384] +++ exited with 0 +++
[pid   382] +++ exited with 0 +++
[pid   385] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=382, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   377] <... futex resumed>)        = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   377] exit_group(0)               = ?
[pid   299] <... openat resumed>)       = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   385] <... futex resumed>)        = ?
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 396
./strace-static-x86_64: Process 395 attached
[pid   391] <... mmap resumed>)         = 0x20000000
[pid   395] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   395] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   390] <... futex resumed>)        = 0
[pid   391] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   395] <... prctl resumed>)        = 0
[pid   395] setpgid(0, 0)               = 0
[pid   385] +++ exited with 0 +++
[pid   377] +++ exited with 0 +++
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=377, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   301] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   301] close(3)                    = 0
[pid   395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   395] write(3, "1000", 4)         = 4
[pid   395] close(3)                    = 0
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   395] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   395] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[397], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 397
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 397 attached
 <unfinished ...>
[pid   397] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   397] memfd_create("syzkaller", 0) = 3
[pid   397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 398
./strace-static-x86_64: Process 394 attached
./strace-static-x86_64: Process 396 attached
[pid   396] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   394] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   396] <... set_robust_list resumed>) = 0
[pid   396] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   394] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   396] <... prctl resumed>)        = 0
[pid   394] <... prctl resumed>)        = 0
[pid   396] setpgid(0, 0 <unfinished ...>
[pid   394] setpgid(0, 0 <unfinished ...>
[pid   396] <... setpgid resumed>)      = 0
[pid   394] <... setpgid resumed>)      = 0
[pid   396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   394] write(3, "1000", 4 <unfinished ...>
[pid   396] <... openat resumed>)       = 3
[pid   394] <... write resumed>)        = 4
[pid   396] write(3, "1000", 4 <unfinished ...>
[pid   394] close(3./strace-static-x86_64: Process 398 attached
 <unfinished ...>
[pid   398] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   396] <... write resumed>)        = 4
[pid   394] <... close resumed>)        = 0
[pid   389] <... mmap resumed>)         = 0x20000000
[pid   396] close(3 <unfinished ...>
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] <... close resumed>)        = 0
[pid   394] <... futex resumed>)        = 0
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   389] <... futex resumed>)        = 1
[pid   388] <... futex resumed>)        = 0
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] <... futex resumed>)        = 0
[pid   394] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   389] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   388] <... futex resumed>)        = 0
[pid   396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   394] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   396] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   394] <... mprotect resumed>)     = 0
[pid   398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   398] setpgid(0, 0 <unfinished ...>
[pid   396] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   394] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   396] <... mprotect resumed>)     = 0
[pid   396] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[399], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 399
[pid   394] <... clone resumed>, parent_tid=[400], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 400
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] <... futex resumed>)        = 0
[pid   394] <... futex resumed>)        = 0
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   398] <... setpgid resumed>)      = 0
[pid   398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   398] write(3, "1000", 4)         = 4
[pid   398] close(3)                    = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   398] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   398] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   398] <... clone resumed>, parent_tid=[401], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 401
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 400 attached
) = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   400] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   400] memfd_create("syzkaller", 0) = 3
[pid   400] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 399 attached
[pid   399] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   399] memfd_create("syzkaller", 0) = 3
[pid   399] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   389] <... madvise resumed>)      = 0
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   388] <... futex resumed>)        = 0
[pid   391] <... madvise resumed>)      = 0
[pid   389] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   388] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   388] <... futex resumed>)        = 0
[pid   397] <... write resumed>)        = 1048576
[pid   391] <... futex resumed>)        = 1
[pid   390] <... futex resumed>)        = 0
[pid   389] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   388] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   390] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] <... openat resumed>)       = 5
[pid   391] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   390] <... futex resumed>)        = 0
[pid   389] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   391] <... openat resumed>)       = 5
[pid   390] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   389] <... futex resumed>)        = 1
[pid   388] <... futex resumed>)        = 0
[pid   391] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   389] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   391] <... futex resumed>)        = 1
[pid   390] <... futex resumed>)        = 0
[pid   388] exit_group(0./strace-static-x86_64: Process 401 attached
 <unfinished ...>
[pid   400] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   397] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   391] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   390] exit_group(0 <unfinished ...>
[pid   389] <... futex resumed>)        = ?
[pid   388] <... exit_group resumed>)   = ?
[pid   390] <... exit_group resumed>)   = ?
[pid   389] +++ exited with 0 +++
[pid   391] <... futex resumed>)        = ?
[pid   388] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=388, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   397] <... munmap resumed>)       = 0
[pid   401] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   397] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   401] <... set_robust_list resumed>) = 0
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   401] memfd_create("syzkaller", 0 <unfinished ...>
[pid   397] <... openat resumed>)       = 4
[pid   293] close(3)                    = 0
[pid   399] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   401] <... memfd_create resumed>) = 3
[pid   400] <... write resumed>)        = 1048576
[pid   397] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   391] +++ exited with 0 +++
[pid   390] +++ exited with 0 +++
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   397] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=390, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   397] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 402
[pid   401] <... mmap resumed>)         = 0x7efceeaa9000
[pid   397] <... ioctl resumed>)        = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   399] <... write resumed>)        = 1048576
[pid   397] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   397] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   397] close(4 <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 403
[pid   397] <... close resumed>)        = 0
[pid   400] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   399] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   397] close(3 <unfinished ...>
[pid   400] <... munmap resumed>)       = 0
[pid   399] <... munmap resumed>)       = 0
[pid   397] <... close resumed>)        = 0
./strace-static-x86_64: Process 402 attached
[pid   401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   400] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   399] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 403 attached
 <unfinished ...>
[pid   402] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   400] <... openat resumed>)       = 4
[pid   399] <... openat resumed>)       = 4
[pid   397] <... futex resumed>)        = 1
[pid   395] <... futex resumed>)        = 0
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] <... write resumed>)        = 1048576
[pid   401] munmap(0x7efceeaa9000, 1048576) = 0
[pid   403] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   402] <... set_robust_list resumed>) = 0
[pid   400] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   399] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   397] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   401] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   403] <... set_robust_list resumed>) = 0
[pid   402] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   401] <... openat resumed>)       = 4
[pid   400] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   399] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   397] <... open resumed>)         = 3
[pid   403] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   402] <... prctl resumed>)        = 0
[pid   401] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   400] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   399] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   403] <... prctl resumed>)        = 0
[pid   402] setpgid(0, 0 <unfinished ...>
[pid   401] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   400] <... ioctl resumed>)        = 0
[pid   399] <... ioctl resumed>)        = 0
[pid   397] <... futex resumed>)        = 1
[pid   395] <... futex resumed>)        = 0
[pid   403] setpgid(0, 0 <unfinished ...>
[pid   402] <... setpgid resumed>)      = 0
[pid   401] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   397] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   403] <... setpgid resumed>)      = 0
[pid   402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   401] <... ioctl resumed>)        = 0
[pid   397] <... open resumed>)         = 4
[pid   395] <... futex resumed>)        = 0
[pid   403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   402] <... openat resumed>)       = 3
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   403] <... openat resumed>)       = 3
[pid   402] write(3, "1000", 4 <unfinished ...>
[pid   397] <... futex resumed>)        = 0
[pid   395] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   403] write(3, "1000", 4 <unfinished ...>
[pid   402] <... write resumed>)        = 4
[pid   397] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   403] <... write resumed>)        = 4
[pid   402] close(3 <unfinished ...>
[pid   400] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   399] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   397] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   395] <... futex resumed>)        = 0
[pid   402] <... close resumed>)        = 0
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   403] close(3 <unfinished ...>
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   399] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   397] ftruncate(4, 33587195 <unfinished ...>
[pid   402] <... futex resumed>)        = 0
[pid   400] close(4 <unfinished ...>
[pid   399] close(4 <unfinished ...>
[pid   402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   402] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   397] <... ftruncate resumed>)    = 0
[pid   403] <... close resumed>)        = 0
[pid   402] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   400] <... close resumed>)        = 0
[pid   399] <... close resumed>)        = 0
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   400] close(3 <unfinished ...>
[pid   399] close(3 <unfinished ...>
[pid   397] <... futex resumed>)        = 1
[pid   395] <... futex resumed>)        = 0
[pid   402] <... clone resumed>, parent_tid=[404], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 404
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   395] <... futex resumed>)        = 0
[pid   402] <... futex resumed>)        = 0
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 404 attached
 <unfinished ...>
[pid   404] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   404] memfd_create("syzkaller", 0) = 3
[pid   404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   400] <... close resumed>)        = 0
[pid   399] <... close resumed>)        = 0
[pid   397] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   403] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   396] <... futex resumed>)        = 0
[pid   403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   400] <... futex resumed>)        = 1
[pid   399] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   394] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   399] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   396] <... futex resumed>)        = 0
[pid   403] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] close(4 <unfinished ...>
[pid   403] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   399] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   394] <... futex resumed>)        = 0
[pid   403] <... mprotect resumed>)     = 0
[pid   400] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   399] <... open resumed>)         = 3
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] <... close resumed>)        = 0
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... open resumed>)         = 3
[pid   399] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = 0
[pid   403] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   397] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   401] close(3 <unfinished ...>
[pid   400] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = 0
[pid   394] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   399] <... open resumed>)         = 4
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   397] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] <... futex resumed>)        = 0
[pid   397] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] <... futex resumed>)        = 0
[pid   400] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   403] <... clone resumed>, parent_tid=[405], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 405
[pid   399] ftruncate(4, 33587195 <unfinished ...>
[pid   396] <... futex resumed>)        = 0
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   400] <... open resumed>)         = 4
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   395] <... futex resumed>)        = 0
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] <... ftruncate resumed>)    = 0
[pid   400] <... futex resumed>)        = 1
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] <... futex resumed>)        = 0
[pid   403] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   399] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = 0
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   399] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] <... futex resumed>)        = 0
[pid   400] ftruncate(4, 33587195 <unfinished ...>
[pid   399] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   396] <... futex resumed>)        = 0
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   399] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... ftruncate resumed>)    = 0
[pid   399] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   397] <... futex resumed>)        = 0
[pid   395] <... futex resumed>)        = 1
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   397] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] <... close resumed>)        = 0
[pid   400] <... futex resumed>)        = 1
[pid   399] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = 0
[pid   394] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   399] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   399] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   396] <... futex resumed>)        = 0
[pid   394] <... futex resumed>)        = 0
[pid   400] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   399] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   400] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   404] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 405 attached
 <unfinished ...>
[pid   405] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   405] memfd_create("syzkaller", 0 <unfinished ...>
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   400] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... futex resumed>)        = 0
[pid   394] <... futex resumed>)        = 1
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   400] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... memfd_create resumed>) = 3
[pid   401] <... futex resumed>)        = 1
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   401] ftruncate(4, 33587195 <unfinished ...>
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   404] <... write resumed>)        = 1048576
[pid   405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   404] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   401] <... ftruncate resumed>)    = 0
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   404] <... munmap resumed>)       = 0
[pid   404] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   404] <... openat resumed>)       = 4
[pid   404] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   404] ioctl(4, LOOP_CLR_FD)       = 0
[pid   404] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   404] close(4)                    = 0
[pid   404] close(3 <unfinished ...>
[pid   401] <... mmap resumed>)         = 0x20000000
[pid   404] <... close resumed>)        = 0
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... mmap resumed>)         = 0x20000000
[pid   399] <... mmap resumed>)         = 0x20000000
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   401] <... futex resumed>)        = 1
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   398] <... futex resumed>)        = 0
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   404] <... futex resumed>)        = 1
[pid   402] <... futex resumed>)        = 0
[pid   401] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... futex resumed>)        = 1
[pid   394] <... futex resumed>)        = 0
[pid   402] <... futex resumed>)        = 0
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   394] <... futex resumed>)        = 0
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   404] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   395] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   395] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   395] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   404] <... futex resumed>)        = 1
[pid   402] <... futex resumed>)        = 0
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] <... write resumed>)        = 1048576
[pid   404] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] <... futex resumed>)        = 0
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   399] <... futex resumed>)        = 1
[pid   399] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   405] munmap(0x7efceeaa9000, 1048576) = 0
[pid   404] <... open resumed>)         = 4
[pid   405] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   405] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] ioctl(4, LOOP_CLR_FD)       = 0
[pid   397] <... mmap resumed>)         = 0x20000000
[pid   395] <... mmap resumed>)         = 0x7efceeb88000
[pid   395] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   395] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   404] <... futex resumed>)        = 1
[pid   402] <... futex resumed>)        = 0
[pid   404] ftruncate(4, 33587195 <unfinished ...>
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   395] <... clone resumed>, parent_tid=[406], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 406
[pid   405] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   402] <... futex resumed>)        = 0
[pid   395] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   395] <... futex resumed>)        = 0
[pid   405] close(4 <unfinished ...>
[pid   395] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] <... close resumed>)        = 0
[pid   397] <... futex resumed>)        = 0
[pid   405] close(3)                    = 0
[pid   397] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   403] <... futex resumed>)        = 0
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   403] <... futex resumed>)        = 1
[pid   405] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   403] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 406 attached
 <unfinished ...>
[pid   406] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   406] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   403] <... futex resumed>)        = 1
[pid   405] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   403] <... futex resumed>)        = 0
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   405] <... futex resumed>)        = 0
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] ftruncate(4, 33587195 <unfinished ...>
[pid   401] <... madvise resumed>)      = 0
[pid   400] <... madvise resumed>)      = 0
[pid   406] <... madvise resumed>)      = 0
[pid   404] <... ftruncate resumed>)    = 0
[pid   399] <... madvise resumed>)      = 0
[pid   406] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   406] <... futex resumed>)        = 1
[pid   404] <... futex resumed>)        = 1
[pid   402] <... futex resumed>)        = 0
[pid   399] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = 0
[pid   395] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   406] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   404] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   396] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   395] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   402] <... futex resumed>)        = 0
[pid   399] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   396] <... futex resumed>)        = 0
[pid   395] <... futex resumed>)        = 1
[pid   404] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   399] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   397] <... futex resumed>)        = 0
[pid   396] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   395] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   400] <... futex resumed>)        = 1
[pid   394] <... futex resumed>)        = 0
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] <... openat resumed>)       = 5
[pid   394] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   399] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   394] <... futex resumed>)        = 0
[pid   399] <... futex resumed>)        = 1
[pid   396] <... futex resumed>)        = 0
[pid   394] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   399] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   396] exit_group(0 <unfinished ...>
[pid   399] <... futex resumed>)        = ?
[pid   396] <... exit_group resumed>)   = ?
[pid   401] <... futex resumed>)        = 1
[pid   400] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   399] +++ exited with 0 +++
[pid   397] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   400] <... openat resumed>)       = 5
[pid   397] <... openat resumed>)       = 5
[pid   401] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   400] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   398] <... futex resumed>)        = 0
[pid   404] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   397] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   396] +++ exited with 0 +++
[pid   405] <... ftruncate resumed>)    = 0
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   400] <... futex resumed>)        = 1
[pid   398] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   397] <... futex resumed>)        = 1
[pid   395] <... futex resumed>)        = 0
[pid   394] <... futex resumed>)        = 0
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=396, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] <... futex resumed>)        = 1
[pid   402] <... futex resumed>)        = 0
[pid   400] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   398] <... futex resumed>)        = 1
[pid   397] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   395] exit_group(0 <unfinished ...>
[pid   394] exit_group(0 <unfinished ...>
[pid   299] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   406] <... futex resumed>)        = ?
[pid   405] <... futex resumed>)        = 1
[pid   404] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   403] <... futex resumed>)        = 0
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   398] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   397] <... futex resumed>)        = ?
[pid   395] <... exit_group resumed>)   = ?
[pid   400] <... futex resumed>)        = ?
[pid   394] <... exit_group resumed>)   = ?
[pid   299] <... restart_syscall resumed>) = 0
[pid   406] +++ exited with 0 +++
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   404] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   402] <... futex resumed>)        = 0
[pid   405] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   404] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   403] <... futex resumed>)        = 0
[pid   397] +++ exited with 0 +++
[pid   395] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=395, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3 <unfinished ...>
[pid   405] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   401] <... futex resumed>)        = 0
[pid   400] +++ exited with 0 +++
[pid   394] +++ exited with 0 +++
[pid   295] <... close resumed>)        = 0
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   405] <... futex resumed>)        = 0
[pid   403] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   401] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 407
./strace-static-x86_64: Process 407 attached
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=394, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   407] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   405] <... futex resumed>)        = 0
[pid   403] <... futex resumed>)        = 1
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   405] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   401] <... openat resumed>)       = 5
[pid   407] <... set_robust_list resumed>) = 0
[pid   404] <... mmap resumed>)         = 0x20000000
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... restart_syscall resumed>) = 0
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   401] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   401] <... futex resumed>)        = 1
[pid   398] <... futex resumed>)        = 0
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   398] exit_group(0)               = ?
[pid   407] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   405] <... mmap resumed>)         = 0x20000000
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   299] <... close resumed>)        = 0
[pid   401] +++ exited with 0 +++
[pid   398] +++ exited with 0 +++
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=398, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   300] close(3 <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 408
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   301] <... openat resumed>)       = 3
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 409
[pid   301] close(3)                    = 0
[pid   404] <... futex resumed>)        = 1
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   407] <... prctl resumed>)        = 0
[pid   404] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   402] <... futex resumed>)        = 0
[pid   407] setpgid(0, 0 <unfinished ...>
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 410
[pid   407] <... setpgid resumed>)      = 0
[pid   404] <... futex resumed>)        = 0
[pid   402] <... futex resumed>)        = 1
[pid   407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   404] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   407] <... openat resumed>)       = 3
[pid   407] write(3, "1000", 4)         = 4
[pid   407] close(3)                    = 0
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   407] <... futex resumed>)        = 0
[pid   405] <... futex resumed>)        = 1
[pid   403] <... futex resumed>)        = 0
[pid   407] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   405] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 408 attached
 <unfinished ...>
[pid   407] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   403] <... futex resumed>)        = 0
[pid   407] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 409 attached
 <unfinished ...>
[pid   408] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   407] <... mprotect resumed>)     = 0
[pid   407] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[411], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 411
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   408] <... set_robust_list resumed>) = 0
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   409] set_robust_list(0x555556c5e5e0, 24./strace-static-x86_64: Process 411 attached
./strace-static-x86_64: Process 410 attached
) = 0
[pid   408] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   411] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   410] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   409] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   408] <... prctl resumed>)        = 0
[pid   411] <... set_robust_list resumed>) = 0
[pid   410] <... set_robust_list resumed>) = 0
[pid   409] <... prctl resumed>)        = 0
[pid   408] setpgid(0, 0 <unfinished ...>
[pid   410] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   409] setpgid(0, 0 <unfinished ...>
[pid   408] <... setpgid resumed>)      = 0
[pid   411] memfd_create("syzkaller", 0 <unfinished ...>
[pid   410] <... prctl resumed>)        = 0
[pid   409] <... setpgid resumed>)      = 0
[pid   409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   410] setpgid(0, 0 <unfinished ...>
[pid   408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   411] <... memfd_create resumed>) = 3
[pid   410] <... setpgid resumed>)      = 0
[pid   409] <... openat resumed>)       = 3
[pid   408] <... openat resumed>)       = 3
[pid   411] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   409] write(3, "1000", 4 <unfinished ...>
[pid   408] write(3, "1000", 4 <unfinished ...>
[pid   410] <... openat resumed>)       = 3
[pid   409] <... write resumed>)        = 4
[pid   408] <... write resumed>)        = 4
[pid   411] <... mmap resumed>)         = 0x7efceeaa9000
[pid   410] write(3, "1000", 4 <unfinished ...>
[pid   409] close(3 <unfinished ...>
[pid   408] close(3 <unfinished ...>
[pid   410] <... write resumed>)        = 4
[pid   409] <... close resumed>)        = 0
[pid   408] <... close resumed>)        = 0
[pid   410] close(3 <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] <... close resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   410] <... futex resumed>)        = 0
[pid   409] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   408] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   410] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   409] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   408] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   410] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   409] <... mprotect resumed>)     = 0
[pid   408] <... mprotect resumed>)     = 0
[pid   410] <... mprotect resumed>)     = 0
[pid   409] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   410] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   408] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   410] <... clone resumed>, parent_tid=[413], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 413
[pid   409] <... clone resumed>, parent_tid=[412], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 412
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   408] <... clone resumed>, parent_tid=[414], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 414
[pid   410] <... futex resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   408] <... futex resumed>)        = 0
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 412 attached
 <unfinished ...>
[pid   412] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   412] memfd_create("syzkaller", 0./strace-static-x86_64: Process 413 attached
 <unfinished ...>
[pid   413] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   413] memfd_create("syzkaller", 0 <unfinished ...>
[pid   412] <... memfd_create resumed>) = 3
[pid   413] <... memfd_create resumed>) = 3
[pid   412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 414 attached
 <unfinished ...>
[pid   414] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   411] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   414] memfd_create("syzkaller", 0) = 3
[pid   414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   413] <... mmap resumed>)         = 0x7efceeaa9000
[   21.226273][  T397] syz-executor324 (397) used greatest stack depth: 22480 bytes left
[pid   411] <... write resumed>)        = 1048576
[pid   411] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   412] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   411] <... munmap resumed>)       = 0
[pid   414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   411] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   411] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   411] ioctl(4, LOOP_CLR_FD)       = 0
[pid   414] <... write resumed>)        = 1048576
[pid   411] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   414] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   411] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   405] <... madvise resumed>)      = 0
[pid   404] <... madvise resumed>)      = 0
[pid   414] <... munmap resumed>)       = 0
[pid   411] close(4 <unfinished ...>
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   411] <... close resumed>)        = 0
[pid   405] <... futex resumed>)        = 1
[pid   403] <... futex resumed>)        = 0
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   403] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   405] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   403] <... futex resumed>)        = 0
[pid   405] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   403] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   405] <... openat resumed>)       = 5
[pid   405] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   403] <... futex resumed>)        = 0
[pid   405] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   403] exit_group(0 <unfinished ...>
[pid   405] <... futex resumed>)        = ?
[pid   403] <... exit_group resumed>)   = ?
[pid   414] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   411] close(3 <unfinished ...>
[pid   405] +++ exited with 0 +++
[pid   404] <... futex resumed>)        = 1
[pid   403] +++ exited with 0 +++
[pid   402] <... futex resumed>)        = 0
[pid   402] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=403, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   402] <... futex resumed>)        = 0
[pid   402] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 415
./strace-static-x86_64: Process 415 attached
[pid   414] <... openat resumed>)       = 4
[pid   413] <... write resumed>)        = 1048576
[pid   412] <... write resumed>)        = 1048576
[pid   411] <... close resumed>)        = 0
[pid   404] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   415] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   414] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   413] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] <... openat resumed>)       = 5
[pid   415] <... set_robust_list resumed>) = 0
[pid   414] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   413] <... munmap resumed>)       = 0
[pid   411] <... futex resumed>)        = 1
[pid   407] <... futex resumed>)        = 0
[pid   404] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   414] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   413] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   412] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   411] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   404] <... futex resumed>)        = 1
[pid   402] <... futex resumed>)        = 0
[pid   415] <... prctl resumed>)        = 0
[pid   414] <... ioctl resumed>)        = 0
[pid   413] <... openat resumed>)       = 4
[pid   412] <... munmap resumed>)       = 0
[pid   411] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   407] <... futex resumed>)        = 0
[pid   404] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   402] exit_group(0 <unfinished ...>
[pid   415] setpgid(0, 0 <unfinished ...>
[pid   413] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   412] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   411] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   404] <... futex resumed>)        = ?
[pid   402] <... exit_group resumed>)   = ?
[pid   415] <... setpgid resumed>)      = 0
[pid   413] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   412] <... openat resumed>)       = 4
[pid   411] <... open resumed>)         = 3
[pid   404] +++ exited with 0 +++
[pid   402] +++ exited with 0 +++
[pid   415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   414] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   413] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   412] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=402, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   415] <... openat resumed>)       = 3
[pid   414] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   413] <... ioctl resumed>)        = 0
[pid   412] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   411] <... futex resumed>)        = 1
[pid   407] <... futex resumed>)        = 0
[pid   415] write(3, "1000", 4 <unfinished ...>
[pid   414] close(4 <unfinished ...>
[pid   412] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   411] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] <... write resumed>)        = 4
[pid   414] <... close resumed>)        = 0
[pid   412] <... ioctl resumed>)        = 0
[pid   411] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   407] <... futex resumed>)        = 0
[pid   415] close(3 <unfinished ...>
[pid   414] close(3 <unfinished ...>
[pid   411] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   415] <... close resumed>)        = 0
[pid   414] <... close resumed>)        = 0
[pid   411] <... open resumed>)         = 4
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] <... futex resumed>)        = 0
[pid   414] <... futex resumed>)        = 1
[pid   413] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   411] <... futex resumed>)        = 1
[pid   408] <... futex resumed>)        = 0
[pid   407] <... futex resumed>)        = 0
[pid   293] <... openat resumed>)       = 3
[pid   415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   413] close(4 <unfinished ...>
[pid   411] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   415] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   413] <... close resumed>)        = 0
[pid   411] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   408] <... futex resumed>)        = 0
[pid   407] <... futex resumed>)        = 0
[pid   293] <... ioctl resumed>)        = 0
[pid   415] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   413] close(3 <unfinished ...>
[pid   412] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   411] ftruncate(4, 33587195 <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   415] <... mprotect resumed>)     = 0
[pid   414] <... open resumed>)         = 3
[pid   413] <... close resumed>)        = 0
[pid   412] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   411] <... ftruncate resumed>)    = 0
[pid   415] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] close(4 <unfinished ...>
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = 1
[pid   413] <... futex resumed>)        = 1
[pid   412] <... close resumed>)        = 0
[pid   411] <... futex resumed>)        = 0
[pid   410] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   415] <... clone resumed>, parent_tid=[416], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 416
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] close(3 <unfinished ...>
[pid   411] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   413] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   412] <... close resumed>)        = 0
[pid   410] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   407] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   293] <... close resumed>)        = 0
[pid   415] <... futex resumed>)        = 0
[pid   414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   413] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   414] <... open resumed>)         = 4
[pid   413] <... open resumed>)         = 3
[pid   412] <... futex resumed>)        = 1
[pid   411] <... futex resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   407] <... futex resumed>)        = 1
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = 1
[pid   413] <... futex resumed>)        = 1
[pid   412] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   411] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   410] <... futex resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   413] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   412] <... open resumed>)         = 3
[pid   410] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 417
[pid   414] ftruncate(4, 33587195 <unfinished ...>
[pid   413] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   413] <... open resumed>)         = 4
[pid   412] <... futex resumed>)        = 1
[pid   409] <... futex resumed>)        = 0
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] <... futex resumed>)        = 1
[pid   412] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   410] <... futex resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   414] <... ftruncate resumed>)    = 0
[pid   411] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   414] <... futex resumed>)        = 1
[pid   413] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   412] <... open resumed>)         = 4
[pid   411] <... futex resumed>)        = 1
[pid   410] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   407] <... futex resumed>)        = 0
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   413] ftruncate(4, 33587195 <unfinished ...>
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   411] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   413] <... ftruncate resumed>)    = 0
[pid   412] <... futex resumed>)        = 1
[pid   411] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   409] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   407] <... futex resumed>)        = 0
[pid   414] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   411] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 417 attached
./strace-static-x86_64: Process 416 attached
 <unfinished ...>
[pid   414] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   413] <... futex resumed>)        = 1
[pid   412] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   410] <... futex resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] ftruncate(4, 33587195 <unfinished ...>
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   414] <... futex resumed>)        = 1
[pid   413] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   412] <... ftruncate resumed>)    = 0
[pid   410] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   413] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   413] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   412] <... futex resumed>)        = 1
[pid   409] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   414] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   413] <... futex resumed>)        = 1
[pid   412] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   410] <... futex resumed>)        = 0
[pid   409] <... futex resumed>)        = 0
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   412] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   413] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   412] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   410] <... futex resumed>)        = 0
[pid   413] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   412] <... futex resumed>)        = 1
[pid   409] <... futex resumed>)        = 0
[pid   412] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   412] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   409] <... futex resumed>)        = 0
[pid   412] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   416] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   416] memfd_create("syzkaller", 0) = 3
[pid   416] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   417] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   417] setpgid(0, 0)               = 0
[pid   417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   417] write(3, "1000", 4)         = 4
[pid   417] close(3)                    = 0
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   417] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   417] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[418], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 418
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   413] <... mmap resumed>)         = 0x20000000
[pid   416] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 418 attached
 <unfinished ...>
[pid   418] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   418] memfd_create("syzkaller", 0) = 3
[pid   410] <... futex resumed>)        = 0
[pid   418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   418] <... mmap resumed>)         = 0x7efceeaa9000
[pid   410] <... futex resumed>)        = 0
[pid   413] <... futex resumed>)        = 1
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   413] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   412] <... mmap resumed>)         = 0x20000000
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   409] <... futex resumed>)        = 0
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   412] <... futex resumed>)        = 1
[pid   412] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   411] <... mmap resumed>)         = 0x20000000
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   416] <... write resumed>)        = 1048576
[pid   416] munmap(0x7efceeaa9000, 1048576) = 0
[pid   407] <... futex resumed>)        = 0
[pid   411] <... futex resumed>)        = 1
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   416] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   416] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   416] ioctl(4, LOOP_CLR_FD)       = 0
[pid   411] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   416] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   416] close(4)                    = 0
[pid   416] close(3)                    = 0
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] <... futex resumed>)        = 0
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   416] <... futex resumed>)        = 1
[pid   416] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] <... futex resumed>)        = 0
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   416] <... futex resumed>)        = 1
[pid   416] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] <... futex resumed>)        = 0
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   416] <... futex resumed>)        = 1
[pid   416] ftruncate(4, 33587195 <unfinished ...>
[pid   418] <... write resumed>)        = 1048576
[pid   418] munmap(0x7efceeaa9000, 1048576) = 0
[pid   418] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   418] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   418] ioctl(4, LOOP_CLR_FD)       = 0
[pid   418] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   418] close(4)                    = 0
[pid   418] close(3 <unfinished ...>
[pid   414] <... mmap resumed>)         = 0x20000000
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   408] <... futex resumed>)        = 0
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   414] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   418] <... close resumed>)        = 0
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   417] <... futex resumed>)        = 0
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   418] <... futex resumed>)        = 1
[pid   418] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   417] <... futex resumed>)        = 0
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   418] <... futex resumed>)        = 1
[pid   418] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   417] <... futex resumed>)        = 0
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   418] <... futex resumed>)        = 1
[pid   418] ftruncate(4, 33587195 <unfinished ...>
[pid   412] <... madvise resumed>)      = 0
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   409] <... futex resumed>)        = 0
[pid   412] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   409] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   409] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   412] <... openat resumed>)       = 5
[pid   412] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   409] <... futex resumed>)        = 0
[pid   409] exit_group(0)               = ?
[pid   416] <... ftruncate resumed>)    = 0
[pid   412] +++ exited with 0 +++
[pid   409] +++ exited with 0 +++
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   415] <... futex resumed>)        = 0
[pid   416] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   411] <... madvise resumed>)      = 0
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=409, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   416] <... sendfile resumed>)     = 4
[pid   415] <... futex resumed>)        = 0
[pid   411] <... futex resumed>)        = 1
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   407] <... futex resumed>)        = 0
[pid   407] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   411] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   407] <... futex resumed>)        = 0
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   411] <... openat resumed>)       = 5
[pid   407] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   411] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   407] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   411] <... futex resumed>)        = 0
[pid   407] exit_group(0 <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   407] <... exit_group resumed>)   = ?
[pid   300] close(3 <unfinished ...>
[pid   416] <... futex resumed>)        = 0
[pid   415] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   416] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   418] <... ftruncate resumed>)    = 0
[pid   415] <... futex resumed>)        = 0
[pid   411] +++ exited with 0 +++
[pid   407] +++ exited with 0 +++
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   418] <... futex resumed>)        = 1
[pid   417] <... futex resumed>)        = 0
[pid   418] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=407, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   418] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 419
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   417] <... futex resumed>)        = 0
[pid   418] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   418] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   417] <... futex resumed>)        = 0
[pid   418] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3 <unfinished ...>
[pid   413] <... madvise resumed>)      = 0
[pid   295] <... close resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 419 attached
 <unfinished ...>
[pid   419] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   410] <... futex resumed>)        = 0
[pid   410] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 420
[pid   413] <... futex resumed>)        = 0
[pid   410] <... futex resumed>)        = 1
[pid   410] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   419] setpgid(0, 0)               = 0
[pid   419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   419] write(3, "1000", 4)         = 4
[pid   419] close(3)                    = 0
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   419] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   419] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[421], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 421
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 420 attached
 <unfinished ...>
[pid   420] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   420] setpgid(0, 0)               = 0
[pid   420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   420] write(3, "1000", 4)         = 4
[pid   420] close(3)                    = 0
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   420] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 421 attached
 <unfinished ...>
[pid   414] <... madvise resumed>)      = 0
[pid   413] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   421] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   413] <... openat resumed>)       = 5
[pid   413] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] <... set_robust_list resumed>) = 0
[pid   414] <... futex resumed>)        = 1
[pid   413] <... futex resumed>)        = 1
[pid   410] <... futex resumed>)        = 0
[pid   408] <... futex resumed>)        = 0
[pid   413] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   421] memfd_create("syzkaller", 0 <unfinished ...>
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   410] exit_group(0 <unfinished ...>
[pid   408] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   414] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   421] <... memfd_create resumed>) = 3
[pid   408] <... futex resumed>)        = 0
[pid   410] <... exit_group resumed>)   = ?
[pid   413] <... futex resumed>)        = ?
[pid   413] +++ exited with 0 +++
[pid   414] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   408] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   410] +++ exited with 0 +++
[pid   421] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   414] <... openat resumed>)       = 5
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=410, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   420] <... mprotect resumed>)     = 0
[pid   421] <... mmap resumed>)         = 0x7efceeaa9000
[pid   420] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   414] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   408] <... futex resumed>)        = 0
[pid   420] <... clone resumed>, parent_tid=[423], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 423
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   408] exit_group(0 <unfinished ...>
[pid   414] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   408] <... exit_group resumed>)   = ?
[pid   414] <... futex resumed>)        = ?
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   414] +++ exited with 0 +++
[pid   408] +++ exited with 0 +++
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=408, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   301] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   299] <... openat resumed>)       = 3
[pid   301] close(3 <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 423 attached
[pid   423] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   423] memfd_create("syzkaller", 0 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   423] <... memfd_create resumed>) = 3
[pid   423] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 424
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 425
[pid   421] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   421] munmap(0x7efceeaa9000, 1048576) = 0
./strace-static-x86_64: Process 425 attached
[pid   421] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   425] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   421] <... openat resumed>)       = 4
[pid   425] <... set_robust_list resumed>) = 0
[pid   421] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   415] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}./strace-static-x86_64: Process 424 attached
) = -1 ETIMEDOUT (Connection timed out)
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   415] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   415] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   415] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[426], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 426
[pid   415] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   415] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   424] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   424] setpgid(0, 0)               = 0
[pid   424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   417] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   417] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   417] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   417] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[427], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 427
[pid   417] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   417] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   424] <... openat resumed>)       = 3
[pid   421] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   424] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 427 attached
./strace-static-x86_64: Process 426 attached
[pid   425] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   424] close(3 <unfinished ...>
[pid   423] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   421] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   427] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   426] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   425] <... prctl resumed>)        = 0
[pid   424] <... close resumed>)        = 0
[pid   418] <... mmap resumed>)         = 0x20000000
[pid   416] <... mmap resumed>)         = 0x20000000
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   424] <... futex resumed>)        = 0
[pid   418] <... futex resumed>)        = 0
[pid   416] <... futex resumed>)        = 0
[pid   424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   418] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   416] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   424] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   424] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   424] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   421] <... ioctl resumed>)        = 0
[pid   424] <... clone resumed>, parent_tid=[428], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 428
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] setpgid(0, 0 <unfinished ...>
[pid   424] <... futex resumed>)        = 0
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   425] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 428 attached
[pid   428] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   428] memfd_create("syzkaller", 0 <unfinished ...>
[pid   425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   428] <... memfd_create resumed>) = 3
[pid   428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   425] <... openat resumed>)       = 3
[pid   427] <... set_robust_list resumed>) = 0
[pid   425] write(3, "1000", 4 <unfinished ...>
[pid   427] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   421] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   425] <... write resumed>)        = 4
[pid   425] close(3 <unfinished ...>
[pid   421] close(4)                    = 0
[pid   425] <... close resumed>)        = 0
[pid   421] close(3)                    = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   421] <... futex resumed>)        = 1
[pid   425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   421] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   425] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   419] <... futex resumed>)        = 0
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   421] <... futex resumed>)        = 0
[pid   421] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   425] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... mprotect resumed>)     = 0
[pid   419] <... futex resumed>)        = 0
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   419] <... futex resumed>)        = 0
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   421] <... futex resumed>)        = 1
[pid   421] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   425] <... clone resumed>, parent_tid=[429], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 429
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   419] <... futex resumed>)        = 0
[pid   421] ftruncate(4, 33587195 <unfinished ...>
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   428] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   426] <... set_robust_list resumed>) = 0
[pid   426] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   423] <... write resumed>)        = 1048576
[pid   428] <... write resumed>)        = 1048576
[pid   423] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   428] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   423] <... munmap resumed>)       = 0
[pid   428] <... munmap resumed>)       = 0
[pid   428] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   428] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   428] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 429 attached
[pid   429] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   429] memfd_create("syzkaller", 0) = 3
[pid   423] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   429] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   428] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   428] close(4 <unfinished ...>
[pid   429] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   428] <... close resumed>)        = 0
[pid   427] <... madvise resumed>)      = 0
[pid   423] <... openat resumed>)       = 4
[pid   421] <... ftruncate resumed>)    = 0
[pid   426] <... madvise resumed>)      = 0
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   419] <... futex resumed>)        = 0
[pid   421] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   419] <... futex resumed>)        = 0
[pid   421] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   421] <... sendfile resumed>)     = 4
[pid   426] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   419] <... futex resumed>)        = 0
[pid   421] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   419] <... futex resumed>)        = 0
[pid   421] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... write resumed>)        = 1048576
[pid   428] close(3 <unfinished ...>
[pid   427] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   426] <... futex resumed>)        = 1
[pid   423] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   415] <... futex resumed>)        = 0
[pid   415] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   416] <... futex resumed>)        = 0
[pid   415] <... futex resumed>)        = 1
[pid   416] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   415] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   416] <... openat resumed>)       = 5
[pid   416] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   415] <... futex resumed>)        = 0
[pid   416] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   415] exit_group(0 <unfinished ...>
[pid   416] <... futex resumed>)        = ?
[pid   415] <... exit_group resumed>)   = ?
[pid   416] +++ exited with 0 +++
[pid   423] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   427] <... futex resumed>)        = 1
[pid   426] +++ exited with 0 +++
[pid   423] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   417] <... futex resumed>)        = 0
[pid   415] +++ exited with 0 +++
[pid   417] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   418] <... futex resumed>)        = 0
[pid   417] <... futex resumed>)        = 1
[pid   418] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   417] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   418] <... openat resumed>)       = 5
[pid   418] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   417] <... futex resumed>)        = 0
[pid   418] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   417] exit_group(0 <unfinished ...>
[pid   418] <... futex resumed>)        = ?
[pid   417] <... exit_group resumed>)   = ?
[pid   418] +++ exited with 0 +++
[pid   429] munmap(0x7efceeaa9000, 1048576) = 0
[pid   423] <... ioctl resumed>)        = 0
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=415, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   429] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   429] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   429] ioctl(4, LOOP_CLR_FD)       = 0
[pid   429] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   429] close(4)                    = 0
[pid   429] close(3)                    = 0
[pid   427] +++ exited with 0 +++
[pid   417] +++ exited with 0 +++
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... futex resumed>)        = 1
[pid   429] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... futex resumed>)        = 1
[pid   429] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   428] <... close resumed>)        = 0
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   429] <... open resumed>)         = 4
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... futex resumed>)        = 1
[pid   429] ftruncate(4, 33587195 <unfinished ...>
[pid   423] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=417, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   423] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   423] close(4 <unfinished ...>
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] <... close resumed>)        = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   423] close(3 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   293] <... openat resumed>)       = 3
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   423] <... close resumed>)        = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   428] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   429] <... ftruncate resumed>)    = 0
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... futex resumed>)        = 1
[pid   429] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   294] <... ioctl resumed>)        = 0
[pid   428] <... open resumed>)         = 3
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   429] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   428] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   424] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 430
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 431
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 431 attached
 <unfinished ...>
[pid   428] <... open resumed>)         = 4
[pid   423] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   421] <... mmap resumed>)         = 0x20000000
[pid   429] <... futex resumed>)        = 1
[pid   429] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0./strace-static-x86_64: Process 430 attached
 <unfinished ...>
[pid   431] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] <... open resumed>)         = 3
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   428] ftruncate(4, 33587195 <unfinished ...>
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   423] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   428] <... ftruncate resumed>)    = 0
[pid   431] <... set_robust_list resumed>) = 0
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] <... open resumed>)         = 4
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   431] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   428] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   423] ftruncate(4, 33587195 <unfinished ...>
[pid   428] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   423] <... ftruncate resumed>)    = 0
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] <... prctl resumed>)        = 0
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   424] <... futex resumed>)        = 0
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   431] setpgid(0, 0 <unfinished ...>
[pid   428] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   424] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   423] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   429] <... mmap resumed>)         = 0x20000000
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   419] <... futex resumed>)        = 0
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   421] <... futex resumed>)        = 1
[pid   421] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   431] <... setpgid resumed>)      = 0
[pid   423] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   431] write(3, "1000", 4)         = 4
[pid   431] close(3)                    = 0
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   431] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   431] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[432], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 432
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... futex resumed>)        = 1
[pid   429] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 432 attached
 <unfinished ...>
[pid   430] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   432] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   430] <... set_robust_list resumed>) = 0
[pid   429] <... madvise resumed>)      = 0
[pid   428] <... mmap resumed>)         = 0x20000000
[pid   423] <... sendfile resumed>)     = 4
[pid   421] <... madvise resumed>)      = 0
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... set_robust_list resumed>) = 0
[pid   429] <... futex resumed>)        = 1
[pid   425] <... futex resumed>)        = 0
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   432] memfd_create("syzkaller", 0 <unfinished ...>
[pid   430] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   429] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   425] <... futex resumed>)        = 0
[pid   432] <... memfd_create resumed>) = 3
[pid   432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   432] munmap(0x7efceeaa9000, 1048576) = 0
[pid   432] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   432] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   432] ioctl(4, LOOP_CLR_FD)       = 0
[pid   420] <... futex resumed>)        = 0
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   429] <... openat resumed>)       = 5
[pid   429] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   425] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   430] <... prctl resumed>)        = 0
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   419] <... futex resumed>)        = 0
[pid   430] setpgid(0, 0 <unfinished ...>
[pid   428] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   425] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] <... futex resumed>)        = 1
[pid   419] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   430] <... setpgid resumed>)      = 0
[pid   429] <... futex resumed>)        = 0
[pid   428] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   425] exit_group(0 <unfinished ...>
[pid   424] <... futex resumed>)        = 0
[pid   430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   428] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   425] <... exit_group resumed>)   = ?
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   421] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   419] <... futex resumed>)        = 0
[pid   430] <... openat resumed>)       = 3
[pid   419] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   430] write(3, "1000", 4 <unfinished ...>
[pid   432] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   432] close(4 <unfinished ...>
[pid   429] +++ exited with 0 +++
[pid   425] +++ exited with 0 +++
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=425, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   299] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   430] <... write resumed>)        = 4
[pid   430] close(3 <unfinished ...>
[pid   421] <... openat resumed>)       = 5
[pid   430] <... close resumed>)        = 0
[pid   421] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   421] <... futex resumed>)        = 1
[pid   430] <... futex resumed>)        = 0
[pid   419] <... futex resumed>)        = 0
[pid   430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   421] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   299] <... restart_syscall resumed>) = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 434
[pid   432] <... close resumed>)        = 0
[pid   432] close(3 <unfinished ...>
[pid   430] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   419] exit_group(0 <unfinished ...>
[pid   430] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   421] <... futex resumed>)        = ?
[pid   419] <... exit_group resumed>)   = ?
[pid   430] <... mprotect resumed>)     = 0
[pid   421] +++ exited with 0 +++
[pid   419] +++ exited with 0 +++
[pid   430] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=419, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   430] <... clone resumed>, parent_tid=[435], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 435
./strace-static-x86_64: Process 434 attached
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... restart_syscall resumed>) = 0
[pid   434] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   430] <... futex resumed>)        = 0
./strace-static-x86_64: Process 435 attached
[pid   434] <... set_robust_list resumed>) = 0
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   428] <... madvise resumed>)      = 0
[pid   435] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   434] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   432] <... close resumed>)        = 0
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   435] <... set_robust_list resumed>) = 0
[pid   434] <... prctl resumed>)        = 0
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   300] <... openat resumed>)       = 3
[pid   434] setpgid(0, 0 <unfinished ...>
[pid   424] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   435] memfd_create("syzkaller", 0 <unfinished ...>
[pid   434] <... setpgid resumed>)      = 0
[pid   428] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   424] <... futex resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   435] <... memfd_create resumed>) = 3
[pid   434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   428] <... openat resumed>)       = 5
[pid   424] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   435] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   434] <... openat resumed>)       = 3
[pid   432] <... futex resumed>)        = 1
[pid   431] <... futex resumed>)        = 0
[pid   428] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   435] <... mmap resumed>)         = 0x7efceeaa9000
[pid   434] write(3, "1000", 4 <unfinished ...>
[pid   432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   428] <... futex resumed>)        = 1
[pid   424] <... futex resumed>)        = 0
[pid   423] <... mmap resumed>)         = 0x20000000
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   432] <... open resumed>)         = 3
[pid   431] <... futex resumed>)        = 0
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 436
[pid   432] <... futex resumed>)        = 0
[pid   431] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... open resumed>)         = 4
[pid   431] <... futex resumed>)        = 0
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   431] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   432] ftruncate(4, 33587195 <unfinished ...>
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... ftruncate resumed>)    = 0
[pid   431] <... futex resumed>)        = 0
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   431] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   432] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   432] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   434] <... write resumed>)        = 4
[pid   432] <... futex resumed>)        = 1
[pid   431] <... futex resumed>)        = 0
[pid   428] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   424] exit_group(0 <unfinished ...>
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] close(3 <unfinished ...>
[pid   432] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   428] <... futex resumed>)        = ?
[pid   424] <... exit_group resumed>)   = ?
[pid   434] <... close resumed>)        = 0
[pid   432] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   431] <... futex resumed>)        = 0
[pid   428] +++ exited with 0 +++
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   432] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] <... write resumed>)        = 1048576
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   424] +++ exited with 0 +++
[pid   423] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 436 attached
 <unfinished ...>
[pid   435] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   420] <... futex resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=424, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   301] close(3)                    = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 437
./strace-static-x86_64: Process 437 attached
[pid   437] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   437] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   437] setpgid(0, 0)               = 0
[pid   437] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   437] write(3, "1000", 4)         = 4
[pid   437] close(3)                    = 0
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   437] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   437] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   437] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   435] <... munmap resumed>)       = 0
[pid   434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   423] <... madvise resumed>)      = 0
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   434] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   435] <... openat resumed>)       = 4
[pid   434] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   436] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   435] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   434] <... mprotect resumed>)     = 0
[pid   436] <... set_robust_list resumed>) = 0
[pid   435] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   434] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   436] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   435] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   436] <... prctl resumed>)        = 0
[pid   435] <... ioctl resumed>)        = 0
[pid   434] <... clone resumed>, parent_tid=[439], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 439
[pid   436] setpgid(0, 0 <unfinished ...>
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... setpgid resumed>)      = 0
[pid   434] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   437] <... clone resumed>, parent_tid=[438], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 438
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 439 attached
 <unfinished ...>
[pid   439] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   439] memfd_create("syzkaller", 0) = 3
[pid   439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   436] <... openat resumed>)       = 3
[pid   435] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   436] write(3, "1000", 4 <unfinished ...>
[pid   435] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   436] <... write resumed>)        = 4
[pid   435] close(4 <unfinished ...>
[pid   436] close(3 <unfinished ...>
[pid   435] <... close resumed>)        = 0
[pid   436] <... close resumed>)        = 0
[pid   435] close(3 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... close resumed>)        = 0
[pid   436] <... futex resumed>)        = 0
[pid   436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   430] <... futex resumed>)        = 0
[pid   436] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... mprotect resumed>)     = 0
[pid   435] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   430] <... futex resumed>)        = 0
[pid   436] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   435] <... open resumed>)         = 3
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] <... clone resumed>, parent_tid=[440], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 440
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   430] <... futex resumed>)        = 0
[pid   436] <... futex resumed>)        = 0
[pid   435] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   430] <... futex resumed>)        = 0
[pid   435] <... open resumed>)         = 4
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 438 attached
 <unfinished ...>
[pid   438] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   438] memfd_create("syzkaller", 0) = 3
[pid   438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   430] <... futex resumed>)        = 0
[pid   435] <... futex resumed>)        = 1
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] ftruncate(4, 33587195 <unfinished ...>
[pid   430] <... futex resumed>)        = 0
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   423] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   420] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 440 attached
 <unfinished ...>
[pid   439] <... write resumed>)        = 1048576
[pid   435] <... ftruncate resumed>)    = 0
[pid   423] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   420] <... futex resumed>)        = 0
[pid   440] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... set_robust_list resumed>) = 0
[pid   423] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   420] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   440] memfd_create("syzkaller", 0 <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   430] <... futex resumed>)        = 0
[pid   423] <... openat resumed>)       = 5
[pid   435] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   423] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... memfd_create resumed>) = 3
[pid   435] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   430] <... futex resumed>)        = 0
[pid   423] <... futex resumed>)        = 1
[pid   420] <... futex resumed>)        = 0
[pid   440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   435] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   423] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   420] exit_group(0 <unfinished ...>
[pid   440] <... mmap resumed>)         = 0x7efceeaa9000
[pid   423] <... futex resumed>)        = ?
[pid   420] <... exit_group resumed>)   = ?
[pid   440] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   435] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   432] <... mmap resumed>)         = 0x20000000
[pid   423] +++ exited with 0 +++
[pid   420] +++ exited with 0 +++
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=420, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   435] <... futex resumed>)        = 1
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   430] <... futex resumed>)        = 0
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   435] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   432] <... futex resumed>)        = 1
[pid   431] <... futex resumed>)        = 0
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... restart_syscall resumed>) = 0
[pid   435] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   432] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   431] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   430] <... futex resumed>)        = 0
[pid   439] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   438] <... write resumed>)        = 1048576
[pid   435] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   432] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   431] <... futex resumed>)        = 0
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   438] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   431] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 441
./strace-static-x86_64: Process 441 attached
[pid   441] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   441] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   441] setpgid(0, 0)               = 0
[pid   441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   441] write(3, "1000", 4)         = 4
[pid   441] close(3)                    = 0
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   441] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   441] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[442], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 442
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 442 attached
 <unfinished ...>
[pid   442] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   442] memfd_create("syzkaller", 0) = 3
[pid   442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   435] <... mmap resumed>)         = 0x20000000
[pid   442] <... mmap resumed>)         = 0x7efceeaa9000
[pid   442] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   432] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   442] <... write resumed>)        = 1048576
[pid   442] munmap(0x7efceeaa9000, 1048576) = 0
[pid   438] <... munmap resumed>)       = 0
[pid   439] <... munmap resumed>)       = 0
[pid   438] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   442] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   442] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   442] ioctl(4, LOOP_CLR_FD)       = 0
[pid   442] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   442] close(4)                    = 0
[pid   442] close(3)                    = 0
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] <... futex resumed>)        = 0
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   439] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   438] <... openat resumed>)       = 4
[pid   439] <... openat resumed>)       = 4
[pid   438] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   439] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   438] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   439] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   438] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   439] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   438] <... ioctl resumed>)        = 0
[pid   439] <... ioctl resumed>)        = 0
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   442] <... futex resumed>)        = 1
[pid   442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   439] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   438] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   430] <... futex resumed>)        = 0
[pid   439] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   438] close(4 <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] close(4 <unfinished ...>
[pid   438] <... close resumed>)        = 0
[pid   430] <... futex resumed>)        = 0
[pid   441] <... futex resumed>)        = 0
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   442] <... futex resumed>)        = 1
[pid   442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] <... futex resumed>)        = 0
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... close resumed>)        = 0
[pid   438] close(3 <unfinished ...>
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   441] <... futex resumed>)        = 0
[pid   439] close(3 <unfinished ...>
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   442] <... futex resumed>)        = 1
[pid   440] <... write resumed>)        = 1048576
[pid   442] ftruncate(4, 33587195 <unfinished ...>
[pid   440] munmap(0x7efceeaa9000, 1048576) = 0
[pid   438] <... close resumed>)        = 0
[pid   440] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   440] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   440] ioctl(4, LOOP_CLR_FD)       = 0
[pid   439] <... close resumed>)        = 0
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   440] close(4)                    = 0
[pid   440] close(3 <unfinished ...>
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   439] <... futex resumed>)        = 1
[pid   438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   439] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   438] <... open resumed>)         = 3
[pid   437] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... open resumed>)         = 3
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 0
[pid   437] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] <... futex resumed>)        = 0
[pid   438] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   439] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   438] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   437] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   438] <... open resumed>)         = 4
[pid   439] <... open resumed>)         = 4
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   435] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   439] <... futex resumed>)        = 1
[pid   438] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   439] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   438] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   437] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   438] ftruncate(4, 33587195 <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   439] ftruncate(4, 33587195 <unfinished ...>
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   431] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   431] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   442] <... ftruncate resumed>)    = 0
[pid   431] <... futex resumed>)        = 0
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... ftruncate resumed>)    = 0
[pid   438] <... ftruncate resumed>)    = 0
[pid   435] <... madvise resumed>)      = 0
[pid   431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   442] <... futex resumed>)        = 1
[pid   441] <... futex resumed>)        = 0
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] <... mmap resumed>)         = 0x7efceeb88000
[pid   442] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... futex resumed>)        = 1
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   435] <... futex resumed>)        = 1
[pid   434] <... futex resumed>)        = 0
[pid   431] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   430] <... futex resumed>)        = 0
[pid   442] <... sendfile resumed>)     = 4
[pid   441] <... futex resumed>)        = 0
[pid   440] <... close resumed>)        = 0
[pid   439] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   438] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... madvise resumed>)      = 0
[pid   431] <... mprotect resumed>)     = 0
[pid   430] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   439] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   438] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   437] <... futex resumed>)        = 0
[pid   435] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   434] <... futex resumed>)        = 0
[pid   430] <... futex resumed>)        = 0
[pid   442] <... futex resumed>)        = 0
[pid   441] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   440] <... futex resumed>)        = 1
[pid   439] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   438] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   436] <... futex resumed>)        = 0
[pid   435] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   432] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   430] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   442] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... openat resumed>)       = 5
[pid   431] <... clone resumed>, parent_tid=[443], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 443
./strace-static-x86_64: Process 443 attached
[pid   442] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   441] <... futex resumed>)        = 0
[pid   440] <... open resumed>)         = 3
[pid   436] <... futex resumed>)        = 0
[pid   435] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   432] <... futex resumed>)        = 0
[pid   431] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   442] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   435] <... futex resumed>)        = 1
[pid   431] <... futex resumed>)        = 0
[pid   430] <... futex resumed>)        = 0
[pid   443] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   439] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   438] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   436] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   435] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   432] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   431] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   430] exit_group(0 <unfinished ...>
[pid   443] <... set_robust_list resumed>) = 0
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   435] <... futex resumed>)        = ?
[pid   430] <... exit_group resumed>)   = ?
[pid   443] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   439] <... futex resumed>)        = 1
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   436] <... futex resumed>)        = 0
[pid   435] +++ exited with 0 +++
[pid   434] <... futex resumed>)        = 0
[pid   430] +++ exited with 0 +++
[pid   443] <... openat resumed>)       = 5
[pid   439] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   438] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=430, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   443] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... futex resumed>)        = 1
[pid   439] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   438] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   437] <... futex resumed>)        = 0
[pid   436] <... futex resumed>)        = 0
[pid   434] <... futex resumed>)        = 0
[pid   443] <... futex resumed>)        = 1
[pid   440] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   439] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   438] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   431] <... futex resumed>)        = 0
[pid   443] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   440] <... open resumed>)         = 4
[pid   431] exit_group(0 <unfinished ...>
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   431] <... exit_group resumed>)   = ?
[pid   432] <... futex resumed>)        = -1 (errno 18446744073709551555)
[pid   440] <... futex resumed>)        = 1
[pid   436] <... futex resumed>)        = 0
[pid   440] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   443] <... futex resumed>)        = ?
[pid   440] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   436] <... futex resumed>)        = 0
[pid   432] +++ exited with 0 +++
[pid   294] <... openat resumed>)       = 3
[pid   440] ftruncate(4, 33587195 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 444
./strace-static-x86_64: Process 444 attached
[pid   444] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   444] setpgid(0, 0)               = 0
[pid   444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   444] write(3, "1000", 4)         = 4
[pid   444] close(3)                    = 0
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   444] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   444] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   443] +++ exited with 0 +++
[pid   440] <... ftruncate resumed>)    = 0
[pid   431] +++ exited with 0 +++
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=431, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   440] <... futex resumed>)        = 1
[pid   436] <... futex resumed>)        = 0
[pid   440] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   436] <... futex resumed>)        = 0
[pid   440] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   439] <... mmap resumed>)         = 0x20000000
[pid   440] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   293] <... openat resumed>)       = 3
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 445 attached
 <unfinished ...>
[pid   440] <... futex resumed>)        = 1
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... mmap resumed>)         = 0x20000000
[pid   436] <... futex resumed>)        = 0
[pid   293] <... ioctl resumed>)        = 0
[pid   445] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   444] <... clone resumed>, parent_tid=[445], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 445
[pid   442] <... mmap resumed>)         = 0x20000000
[pid   440] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   439] <... futex resumed>)        = 1
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   440] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   436] <... futex resumed>)        = 0
[pid   293] close(3 <unfinished ...>
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] <... set_robust_list resumed>) = 0
[pid   440] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   439] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   440] <... mmap resumed>)         = 0x20000000
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   436] <... futex resumed>)        = 0
[pid   440] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   436] <... futex resumed>)        = 0
[pid   441] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   441] <... futex resumed>)        = 0
[pid   441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   441] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   441] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[446], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 446
[pid   441] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   441] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 446 attached
 <unfinished ...>
[pid   446] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   446] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   444] <... futex resumed>)        = 0
[pid   438] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   437] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   442] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 447
./strace-static-x86_64: Process 447 attached
[pid   447] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   447] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   445] memfd_create("syzkaller", 0) = 3
[pid   445] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   447] setpgid(0, 0)               = 0
[pid   447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   447] write(3, "1000", 4)         = 4
[pid   447] close(3)                    = 0
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   447] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   445] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   447] <... mprotect resumed>)     = 0
[pid   447] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[448], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 448
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 448 attached
 <unfinished ...>
[pid   448] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   445] <... write resumed>)        = 1048576
[pid   445] munmap(0x7efceeaa9000, 1048576) = 0
[pid   448] memfd_create("syzkaller", 0) = 3
[pid   448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   445] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   445] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   438] <... madvise resumed>)      = 0
[pid   446] <... madvise resumed>)      = 0
[pid   445] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   440] <... madvise resumed>)      = 0
[pid   439] <... madvise resumed>)      = 0
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   446] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   446] <... futex resumed>)        = 1
[pid   445] <... ioctl resumed>)        = 0
[pid   439] <... futex resumed>)        = 1
[pid   438] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   446] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   439] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   438] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   437] <... futex resumed>)        = 0
[pid   434] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   441] <... futex resumed>)        = 0
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   441] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... futex resumed>)        = 1
[pid   436] <... futex resumed>)        = 0
[pid   438] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   437] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   434] <... futex resumed>)        = 0
[pid   439] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   438] <... openat resumed>)       = 5
[pid   434] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   439] <... openat resumed>)       = 5
[pid   438] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   439] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   438] <... futex resumed>)        = 1
[pid   437] <... futex resumed>)        = 0
[pid   434] <... futex resumed>)        = 0
[pid   439] <... futex resumed>)        = 1
[pid   438] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   437] exit_group(0 <unfinished ...>
[pid   434] exit_group(0 <unfinished ...>
[pid   439] ????( <unfinished ...>
[pid   437] <... exit_group resumed>)   = ?
[pid   434] <... exit_group resumed>)   = ?
[pid   438] <... futex resumed>)        = ?
[pid   442] <... futex resumed>)        = 0
[pid   441] <... futex resumed>)        = 1
[pid   440] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   436] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   442] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   441] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   440] <... openat resumed>)       = 5
[pid   436] <... futex resumed>)        = 0
[pid   442] <... openat resumed>)       = 5
[pid   440] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   436] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   442] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   440] <... futex resumed>)        = 0
[pid   436] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   442] <... futex resumed>)        = 1
[pid   441] <... futex resumed>)        = 0
[pid   440] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   436] exit_group(0 <unfinished ...>
[pid   442] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   441] exit_group(0 <unfinished ...>
[pid   440] <... futex resumed>)        = ?
[pid   438] +++ exited with 0 +++
[pid   437] +++ exited with 0 +++
[pid   436] <... exit_group resumed>)   = ?
[pid   439] <... ???? resumed>)         = ?
[pid   446] <... futex resumed>)        = ?
[pid   445] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   442] <... futex resumed>)        = ?
[pid   441] <... exit_group resumed>)   = ?
[pid   440] +++ exited with 0 +++
[pid   436] +++ exited with 0 +++
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=437, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   446] +++ exited with 0 +++
[pid   445] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   442] +++ exited with 0 +++
[pid   441] +++ exited with 0 +++
[pid   445] close(4 <unfinished ...>
[pid   439] +++ exited with 0 +++
[pid   434] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=436, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=441, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   445] <... close resumed>)        = 0
[pid   301] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=434, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] <... restart_syscall resumed>) = 0
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 449
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 450
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   295] <... openat resumed>)       = 3
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   295] <... ioctl resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 451
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 452
[pid   445] close(3./strace-static-x86_64: Process 449 attached
./strace-static-x86_64: Process 451 attached
 <unfinished ...>
[pid   451] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   449] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   451] <... set_robust_list resumed>) = 0
[pid   449] <... set_robust_list resumed>) = 0
[pid   449] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   451] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   449] <... prctl resumed>)        = 0
[pid   449] setpgid(0, 0 <unfinished ...>
[pid   451] <... prctl resumed>)        = 0
[pid   451] setpgid(0, 0 <unfinished ...>
[pid   449] <... setpgid resumed>)      = 0
[pid   449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   451] <... setpgid resumed>)      = 0
[pid   451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   445] <... close resumed>)        = 0
[pid   448] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   449] <... openat resumed>)       = 3
[pid   451] write(3, "1000", 4)         = 4
[pid   449] write(3, "1000", 4 <unfinished ...>
[pid   451] close(3 <unfinished ...>
[pid   449] <... write resumed>)        = 4
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   444] <... futex resumed>)        = 0
[pid   451] <... close resumed>)        = 0
[pid   449] close(3)                    = 0
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   449] <... futex resumed>)        = 0
[pid   451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   451] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   449] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   445] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   451] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   451] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   449] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   449] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   445] <... open resumed>)         = 3
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] <... futex resumed>)        = 0
[pid   445] <... futex resumed>)        = 1
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   445] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   451] <... clone resumed>, parent_tid=[454], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 454
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   449] <... clone resumed>, parent_tid=[453], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 453
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   444] <... futex resumed>)        = 0
[pid   445] ftruncate(4, 33587195 <unfinished ...>
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   445] <... ftruncate resumed>)    = 0
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   444] <... futex resumed>)        = 0
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   445] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 450 attached
./strace-static-x86_64: Process 452 attached
 <unfinished ...>
[pid   445] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   452] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   450] set_robust_list(0x555556c5e5e0, 24./strace-static-x86_64: Process 454 attached
 <unfinished ...>
[pid   452] <... set_robust_list resumed>) = 0
[pid   450] <... set_robust_list resumed>) = 0
[pid   448] <... write resumed>)        = 1048576
[pid   445] <... futex resumed>)        = 1
[pid   444] <... futex resumed>)        = 0
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   444] <... futex resumed>)        = 0
[pid   452] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 453 attached
 <unfinished ...>
[pid   453] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   453] memfd_create("syzkaller", 0) = 3
[pid   453] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   448] munmap(0x7efceeaa9000, 1048576) = 0
[pid   448] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   448] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   448] ioctl(4, LOOP_CLR_FD)       = 0
[pid   448] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   448] close(4)                    = 0
[pid   448] close(3)                    = 0
[pid   454] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   452] <... prctl resumed>)        = 0
[pid   450] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   447] <... futex resumed>)        = 0
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] <... futex resumed>)        = 1
[pid   448] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   447] <... futex resumed>)        = 0
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] <... futex resumed>)        = 1
[pid   448] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   447] <... futex resumed>)        = 0
[pid   450] <... prctl resumed>)        = 0
[pid   454] <... set_robust_list resumed>) = 0
[pid   452] setpgid(0, 0 <unfinished ...>
[pid   448] <... futex resumed>)        = 1
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   454] memfd_create("syzkaller", 0 <unfinished ...>
[pid   453] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   452] <... setpgid resumed>)      = 0
[pid   450] setpgid(0, 0 <unfinished ...>
[pid   448] ftruncate(4, 33587195 <unfinished ...>
[pid   447] <... futex resumed>)        = 0
[pid   454] <... memfd_create resumed>) = 3
[pid   452] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   450] <... setpgid resumed>)      = 0
[pid   448] <... ftruncate resumed>)    = 0
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   447] <... futex resumed>)        = 0
[pid   448] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   448] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   447] <... futex resumed>)        = 0
[pid   454] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   452] <... openat resumed>)       = 3
[pid   450] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] <... futex resumed>)        = 0
[pid   447] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   448] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   454] <... mmap resumed>)         = 0x7efceeaa9000
[pid   452] write(3, "1000", 4 <unfinished ...>
[pid   450] <... openat resumed>)       = 3
[pid   447] <... futex resumed>)        = 0
[pid   453] <... write resumed>)        = 1048576
[pid   452] <... write resumed>)        = 4
[pid   450] write(3, "1000", 4 <unfinished ...>
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   453] munmap(0x7efceeaa9000, 1048576) = 0
[pid   452] close(3 <unfinished ...>
[pid   450] <... write resumed>)        = 4
[pid   453] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   452] <... close resumed>)        = 0
[pid   453] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   450] close(3 <unfinished ...>
[pid   453] ioctl(4, LOOP_CLR_FD)       = 0
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   450] <... close resumed>)        = 0
[pid   452] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   452] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   450] <... futex resumed>)        = 0
[pid   450] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   452] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   450] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   452] <... mprotect resumed>)     = 0
[pid   453] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   453] close(4)                    = 0
[pid   453] close(3 <unfinished ...>
[pid   452] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   450] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   450] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   452] <... clone resumed>, parent_tid=[455], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 455
[pid   454] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   450] <... clone resumed>, parent_tid=[456], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 456
[pid   452] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   450] <... futex resumed>)        = 0
[pid   453] <... close resumed>)        = 0
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] <... futex resumed>)        = 0
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   453] <... futex resumed>)        = 1
[pid   453] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] <... futex resumed>)        = 0
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   453] <... futex resumed>)        = 1
[pid   453] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] <... futex resumed>)        = 0
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   453] <... futex resumed>)        = 1
[pid   453] ftruncate(4, 33587195./strace-static-x86_64: Process 455 attached
 <unfinished ...>
[pid   455] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   455] memfd_create("syzkaller", 0) = 3
[pid   455] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 456 attached
[pid   454] <... write resumed>)        = 1048576
[pid   453] <... ftruncate resumed>)    = 0
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   449] <... futex resumed>)        = 0
[pid   453] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   453] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   449] <... futex resumed>)        = 0
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   453] <... futex resumed>)        = 0
[pid   449] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   453] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   454] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   449] <... futex resumed>)        = 0
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   455] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   456] <... set_robust_list resumed>) = 0
[pid   456] memfd_create("syzkaller", 0 <unfinished ...>
[pid   454] <... munmap resumed>)       = 0
[pid   456] <... memfd_create resumed>) = 3
[pid   454] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   454] <... openat resumed>)       = 4
[pid   456] <... mmap resumed>)         = 0x7efceeaa9000
[pid   454] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   448] <... mmap resumed>)         = 0x20000000
[pid   454] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   447] <... futex resumed>)        = 0
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] <... futex resumed>)        = 1
[pid   448] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   454] ioctl(4, LOOP_CLR_FD)       = 0
[pid   444] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   444] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   454] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   454] close(4)                    = 0
[pid   454] close(3)                    = 0
[pid   445] <... mmap resumed>)         = 0x20000000
[pid   444] <... mmap resumed>)         = 0x7efceeb88000
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   454] <... futex resumed>)        = 1
[pid   451] <... futex resumed>)        = 0
[pid   445] <... futex resumed>)        = 0
[pid   444] <... mprotect resumed>)     = 0
[pid   454] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   453] <... mmap resumed>)         = 0x20000000
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   453] <... futex resumed>)        = 1
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   449] <... futex resumed>)        = 0
[pid   455] <... write resumed>)        = 1048576
[pid   454] <... open resumed>)         = 3
[pid   453] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   444] <... clone resumed>, parent_tid=[457], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 457
[pid   455] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   453] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   449] <... futex resumed>)        = 0
[pid   444] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] <... munmap resumed>)       = 0
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   453] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   444] <... futex resumed>)        = 0
[pid   455] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   454] <... futex resumed>)        = 1
[pid   451] <... futex resumed>)        = 0
[pid   444] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 457 attached
 <unfinished ...>
[pid   456] <... write resumed>)        = 1048576
[pid   455] <... openat resumed>)       = 4
[pid   454] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   455] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   454] <... open resumed>)         = 4
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   455] ioctl(4, LOOP_CLR_FD)       = 0
[pid   457] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   456] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   451] <... futex resumed>)        = 0
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] <... set_robust_list resumed>) = 0
[pid   454] ftruncate(4, 33587195 <unfinished ...>
[pid   457] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   456] <... munmap resumed>)       = 0
[pid   455] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   456] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   455] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   455] close(4)                    = 0
[pid   455] close(3 <unfinished ...>
[pid   456] <... openat resumed>)       = 4
[pid   455] <... close resumed>)        = 0
[pid   456] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   452] <... futex resumed>)        = 0
[pid   455] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   455] <... open resumed>)         = 3
[pid   452] <... futex resumed>)        = 0
[pid   456] <... ioctl resumed>)        = 0
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   455] <... futex resumed>)        = 0
[pid   452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   455] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] <... open resumed>)         = 4
[pid   452] <... futex resumed>)        = 0
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   455] <... futex resumed>)        = 0
[pid   452] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   455] ftruncate(4, 33587195 <unfinished ...>
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   456] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] close(4)                    = 0
[pid   456] close(3)                    = 0
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   450] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   450] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] <... open resumed>)         = 3
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   450] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   450] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] ftruncate(4, 33587195 <unfinished ...>
[pid   453] <... madvise resumed>)      = 0
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   454] <... ftruncate resumed>)    = 0
[pid   453] <... futex resumed>)        = 1
[pid   449] <... futex resumed>)        = 0
[pid   455] <... ftruncate resumed>)    = 0
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   453] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   449] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   457] <... madvise resumed>)      = 0
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   454] <... futex resumed>)        = 1
[pid   453] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   451] <... futex resumed>)        = 0
[pid   449] <... futex resumed>)        = 0
[pid   457] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] <... futex resumed>)        = 1
[pid   454] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   453] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   452] <... futex resumed>)        = 0
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   457] <... futex resumed>)        = 1
[pid   456] <... ftruncate resumed>)    = 0
[pid   455] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   454] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   453] <... openat resumed>)       = 5
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   448] <... madvise resumed>)      = 0
[pid   444] <... futex resumed>)        = 0
[pid   457] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   454] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   453] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   452] <... futex resumed>)        = 0
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   444] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   453] <... futex resumed>)        = 1
[pid   449] <... futex resumed>)        = 0
[pid   448] <... futex resumed>)        = 1
[pid   447] <... futex resumed>)        = 0
[pid   456] <... futex resumed>)        = 1
[pid   453] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   450] <... futex resumed>)        = 0
[pid   449] exit_group(0 <unfinished ...>
[pid   448] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   447] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] <... futex resumed>)        = 0
[pid   444] <... futex resumed>)        = 1
[pid   456] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   453] <... futex resumed>)        = ?
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   449] <... exit_group resumed>)   = ?
[pid   448] <... openat resumed>)       = 5
[pid   447] <... futex resumed>)        = 0
[pid   445] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   444] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   455] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   454] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   453] +++ exited with 0 +++
[pid   448] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   447] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   448] <... futex resumed>)        = 0
[pid   447] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   455] <... futex resumed>)        = 1
[pid   448] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   447] exit_group(0 <unfinished ...>
[pid   455] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   448] <... futex resumed>)        = ?
[pid   447] <... exit_group resumed>)   = ?
[pid   456] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   452] <... futex resumed>)        = 0
[pid   450] <... futex resumed>)        = 0
[pid   449] +++ exited with 0 +++
[pid   448] +++ exited with 0 +++
[pid   447] +++ exited with 0 +++
[pid   445] <... openat resumed>)       = 5
[pid   454] <... futex resumed>)        = 1
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   445] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=449, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=447, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   455] <... futex resumed>)        = 0
[pid   454] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   452] <... futex resumed>)        = 1
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   445] <... futex resumed>)        = 1
[pid   444] <... futex resumed>)        = 0
[pid   455] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   454] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   445] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   444] exit_group(0 <unfinished ...>
[pid   456] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   455] <... mmap resumed>)         = 0x20000000
[pid   454] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   444] <... exit_group resumed>)   = ?
[pid   445] <... futex resumed>)        = ?
[pid   457] <... futex resumed>)        = 230
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] <... futex resumed>)        = 1
[pid   456] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   455] <... futex resumed>)        = 1
[pid   455] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   301] close(3)                    = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 458
[pid   445] +++ exited with 0 +++
[pid   457] +++ exited with 0 +++
[pid   444] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=444, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   293] <... openat resumed>)       = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   293] <... close resumed>)        = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 459
[pid   294] <... close resumed>)        = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   454] <... mmap resumed>)         = 0x20000000
[pid   452] <... futex resumed>)        = 0
[pid   450] <... futex resumed>)        = 0
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 460
[pid   456] <... futex resumed>)        = 0
[pid   452] <... futex resumed>)        = 1
[pid   450] <... futex resumed>)        = 1
[pid   456] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 459 attached
./strace-static-x86_64: Process 460 attached
./strace-static-x86_64: Process 458 attached
 <unfinished ...>
[pid   456] <... mmap resumed>)         = 0x20000000
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   454] <... futex resumed>)        = 1
[pid   451] <... futex resumed>)        = 0
[pid   460] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   459] <... set_robust_list resumed>) = 0
[pid   458] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   454] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   460] <... set_robust_list resumed>) = 0
[pid   459] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   451] <... futex resumed>)        = 0
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   450] <... futex resumed>)        = 0
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] <... futex resumed>)        = 1
[pid   456] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   455] <... futex resumed>)        = 0
[pid   455] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   458] <... set_robust_list resumed>) = 0
[pid   459] <... prctl resumed>)        = 0
[pid   460] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   459] setpgid(0, 0 <unfinished ...>
[pid   458] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   460] <... prctl resumed>)        = 0
[pid   459] <... setpgid resumed>)      = 0
[pid   458] <... prctl resumed>)        = 0
[pid   458] setpgid(0, 0 <unfinished ...>
[pid   459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   458] <... setpgid resumed>)      = 0
[pid   460] setpgid(0, 0)               = 0
[pid   459] <... openat resumed>)       = 3
[pid   458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   459] write(3, "1000", 4 <unfinished ...>
[pid   458] <... openat resumed>)       = 3
[pid   460] write(3, "1000", 4 <unfinished ...>
[pid   459] <... write resumed>)        = 4
[pid   458] write(3, "1000", 4 <unfinished ...>
[pid   460] <... write resumed>)        = 4
[pid   459] close(3 <unfinished ...>
[pid   458] <... write resumed>)        = 4
[pid   460] close(3 <unfinished ...>
[pid   459] <... close resumed>)        = 0
[pid   458] close(3 <unfinished ...>
[pid   460] <... close resumed>)        = 0
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   458] <... close resumed>)        = 0
[pid   459] <... futex resumed>)        = 0
[pid   460] <... futex resumed>)        = 0
[pid   459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   459] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   460] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   459] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   458] <... futex resumed>)        = 0
[pid   460] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   459] <... mprotect resumed>)     = 0
[pid   460] <... mprotect resumed>)     = 0
[pid   458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   460] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   459] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   458] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   460] <... clone resumed>, parent_tid=[461], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 461
[pid   458] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 462 attached
./strace-static-x86_64: Process 461 attached
 <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... clone resumed>, parent_tid=[462], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 462
[pid   458] <... mprotect resumed>)     = 0
[pid   462] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   461] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   460] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   458] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   462] <... set_robust_list resumed>) = 0
[pid   461] <... set_robust_list resumed>) = 0
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   462] memfd_create("syzkaller", 0 <unfinished ...>
[pid   461] memfd_create("syzkaller", 0 <unfinished ...>
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   458] <... clone resumed>, parent_tid=[463], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 463
[pid   462] <... memfd_create resumed>) = 3
[pid   461] <... memfd_create resumed>) = 3
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   458] <... futex resumed>)        = 0
[pid   462] <... mmap resumed>)         = 0x7efceeaa9000
[pid   461] <... mmap resumed>)         = 0x7efceeaa9000
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 463 attached
 <unfinished ...>
[pid   463] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   462] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   456] <... madvise resumed>)      = 0
[pid   455] <... madvise resumed>)      = 0
[pid   454] <... madvise resumed>)      = 0
[pid   461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] <... futex resumed>)        = 1
[pid   455] <... futex resumed>)        = 1
[pid   454] <... futex resumed>)        = 1
[pid   452] <... futex resumed>)        = 0
[pid   451] <... futex resumed>)        = 0
[pid   450] <... futex resumed>)        = 0
[pid   456] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   455] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   454] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   452] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   451] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   450] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   456] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   455] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   454] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   452] <... futex resumed>)        = 0
[pid   451] <... futex resumed>)        = 0
[pid   450] <... futex resumed>)        = 0
[pid   456] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   455] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   454] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   452] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   451] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   450] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   456] <... openat resumed>)       = 5
[pid   455] <... openat resumed>)       = 5
[pid   454] <... openat resumed>)       = 5
[pid   456] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   455] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   454] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] <... set_robust_list resumed>) = 0
[pid   462] <... write resumed>)        = 1048576
[pid   456] <... futex resumed>)        = 1
[pid   455] <... futex resumed>)        = 1
[pid   454] <... futex resumed>)        = 1
[pid   452] <... futex resumed>)        = 0
[pid   451] <... futex resumed>)        = 0
[pid   450] <... futex resumed>)        = 0
[pid   463] memfd_create("syzkaller", 0 <unfinished ...>
[pid   462] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   461] <... write resumed>)        = 1048576
[pid   456] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   455] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   454] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   452] exit_group(0 <unfinished ...>
[pid   451] exit_group(0 <unfinished ...>
[pid   450] exit_group(0 <unfinished ...>
[pid   463] <... memfd_create resumed>) = 3
[pid   462] <... munmap resumed>)       = 0
[pid   461] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   456] <... futex resumed>)        = ?
[pid   450] <... exit_group resumed>)   = ?
[pid   463] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   462] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   461] <... munmap resumed>)       = 0
[pid   456] +++ exited with 0 +++
[pid   455] <... futex resumed>)        = ?
[pid   454] <... futex resumed>)        = ?
[pid   452] <... exit_group resumed>)   = ?
[pid   451] <... exit_group resumed>)   = ?
[pid   462] <... openat resumed>)       = 4
[pid   461] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   454] +++ exited with 0 +++
[pid   451] +++ exited with 0 +++
[pid   450] +++ exited with 0 +++
[pid   462] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   461] <... openat resumed>)       = 4
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=450, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   462] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   461] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   462] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   461] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   462] <... ioctl resumed>)        = 0
[pid   461] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   461] <... ioctl resumed>)        = 0
[pid   300] <... openat resumed>)       = 3
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   455] +++ exited with 0 +++
[pid   452] +++ exited with 0 +++
[pid   300] <... ioctl resumed>)        = 0
[pid   463] <... mmap resumed>)         = 0x7efceeaa9000
[pid   300] close(3 <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=451, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=452, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   300] <... close resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   462] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   461] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 464
[pid   295] <... openat resumed>)       = 3
[pid   462] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   461] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   462] close(4 <unfinished ...>
[pid   461] close(4 <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   462] <... close resumed>)        = 0
[pid   461] <... close resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   462] close(3 <unfinished ...>
[pid   461] close(3 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   462] <... close resumed>)        = 0
[pid   461] <... close resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   459] <... futex resumed>)        = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 465
[pid   462] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   462] <... open resumed>)         = 3
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] <... futex resumed>)        = 1
[pid   460] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   462] <... futex resumed>)        = 0
[pid   461] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   299] close(3 <unfinished ...>
[pid   462] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] <... open resumed>)         = 3
[pid   460] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   462] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   462] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   461] <... futex resumed>)        = 0
[pid   460] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   462] <... open resumed>)         = 4
[pid   461] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] <... open resumed>)         = 4
[pid   460] <... futex resumed>)        = 0
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 466
[pid   462] <... futex resumed>)        = 1
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   462] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] <... futex resumed>)        = 0
[pid   460] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   462] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   461] ftruncate(4, 33587195 <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   462] ftruncate(4, 33587195 <unfinished ...>
[pid   461] <... ftruncate resumed>)    = 0
[pid   460] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   462] <... ftruncate resumed>)    = 0
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] <... futex resumed>)        = 0
[pid   460] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   462] <... futex resumed>)        = 1
[pid   461] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   462] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   460] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   462] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   459] <... futex resumed>)        = 0
./strace-static-x86_64: Process 466 attached
[pid   462] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   461] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   466] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   462] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 464 attached
 <unfinished ...>
[pid   466] <... set_robust_list resumed>) = 0
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] <... futex resumed>)        = 1
[pid   460] <... futex resumed>)        = 0
[pid   466] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   464] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   462] <... futex resumed>)        = 1
[pid   461] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... futex resumed>)        = 0
./strace-static-x86_64: Process 465 attached
[pid   466] <... prctl resumed>)        = 0
[pid   464] <... set_robust_list resumed>) = 0
[pid   462] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   460] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   466] setpgid(0, 0 <unfinished ...>
[pid   462] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   461] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   466] <... setpgid resumed>)      = 0
[pid   465] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   464] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   463] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   462] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   466] write(3, "1000", 4)         = 4
[pid   466] close(3)                    = 0
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   465] <... set_robust_list resumed>) = 0
[pid   464] <... prctl resumed>)        = 0
[pid   463] <... write resumed>)        = 1048576
[pid   466] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   464] setpgid(0, 0 <unfinished ...>
[pid   466] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   465] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   464] <... setpgid resumed>)      = 0
[pid   466] <... mprotect resumed>)     = 0
[pid   465] <... prctl resumed>)        = 0
[pid   466] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   465] setpgid(0, 0 <unfinished ...>
[pid   464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   465] <... setpgid resumed>)      = 0
[pid   465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   464] <... openat resumed>)       = 3
[pid   466] <... clone resumed>, parent_tid=[467], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 467
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] <... openat resumed>)       = 3
[pid   464] write(3, "1000", 4 <unfinished ...>
[pid   466] <... futex resumed>)        = 0
[pid   465] write(3, "1000", 4 <unfinished ...>
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   464] <... write resumed>)        = 4
[pid   463] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   465] <... write resumed>)        = 4
[pid   464] close(3 <unfinished ...>
[pid   465] close(3 <unfinished ...>
[pid   464] <... close resumed>)        = 0
[pid   463] <... munmap resumed>)       = 0
[pid   465] <... close resumed>)        = 0
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   463] <... openat resumed>)       = 4
[pid   465] <... futex resumed>)        = 0
[pid   464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   463] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   464] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   465] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   464] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   463] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   465] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   464] <... mprotect resumed>)     = 0
[pid   463] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   465] <... mprotect resumed>)     = 0
[pid   464] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   465] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   463] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 467 attached
[pid   464] <... clone resumed>, parent_tid=[468], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 468
[pid   465] <... clone resumed>, parent_tid=[469], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 469
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   467] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   467] memfd_create("syzkaller", 0) = 3
[pid   467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   463] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   463] close(4 <unfinished ...>
[pid   467] <... mmap resumed>)         = 0x7efceeaa9000
[pid   463] <... close resumed>)        = 0
[pid   463] close(3 <unfinished ...>
[pid   467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   463] <... close resumed>)        = 0
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 469 attached
) = 1
[pid   458] <... futex resumed>)        = 0
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 468 attached
 <unfinished ...>
[pid   469] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   463] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   469] <... set_robust_list resumed>) = 0
[pid   468] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   463] <... open resumed>)         = 3
[pid   469] memfd_create("syzkaller", 0 <unfinished ...>
[pid   468] <... set_robust_list resumed>) = 0
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... memfd_create resumed>) = 3
[pid   468] memfd_create("syzkaller", 0 <unfinished ...>
[pid   463] <... futex resumed>)        = 1
[pid   458] <... futex resumed>)        = 0
[pid   469] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   468] <... memfd_create resumed>) = 3
[pid   463] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... mmap resumed>)         = 0x7efceeaa9000
[pid   468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   463] <... open resumed>)         = 4
[pid   458] <... futex resumed>)        = 0
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   468] <... mmap resumed>)         = 0x7efceeaa9000
[pid   467] <... write resumed>)        = 1048576
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   462] <... mmap resumed>)         = 0x20000000
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] <... futex resumed>)        = 0
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   467] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   463] <... futex resumed>)        = 1
[pid   462] <... futex resumed>)        = 1
[pid   459] <... futex resumed>)        = 0
[pid   458] <... futex resumed>)        = 0
[pid   469] <... write resumed>)        = 1048576
[pid   467] <... munmap resumed>)       = 0
[pid   463] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] <... mmap resumed>)         = 0x20000000
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   462] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... write resumed>)        = 1048576
[pid   469] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   467] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   463] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   463] ftruncate(4, 33587195 <unfinished ...>
[pid   469] <... munmap resumed>)       = 0
[pid   463] <... ftruncate resumed>)    = 0
[pid   458] <... futex resumed>)        = 0
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   463] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   467] <... openat resumed>)       = 4
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   467] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   458] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   469] <... openat resumed>)       = 4
[pid   469] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] <... futex resumed>)        = 0
[pid   458] <... futex resumed>)        = 1
[pid   467] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   463] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   467] <... ioctl resumed>)        = 0
[pid   468] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   469] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   468] <... munmap resumed>)       = 0
[pid   461] <... futex resumed>)        = 1
[pid   460] <... futex resumed>)        = 0
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   468] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   461] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   469] <... ioctl resumed>)        = 0
[pid   467] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   467] close(4)                    = 0
[pid   467] close(3)                    = 0
[pid   469] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   468] <... openat resumed>)       = 4
[pid   468] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   468] ioctl(4, LOOP_CLR_FD)       = 0
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   467] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   469] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   466] <... futex resumed>)        = 0
[pid   469] close(4 <unfinished ...>
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... close resumed>)        = 0
[pid   466] <... futex resumed>)        = 1
[pid   469] close(3 <unfinished ...>
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... close resumed>)        = 0
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   465] <... futex resumed>)        = 0
[pid   469] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   465] <... futex resumed>)        = 0
[pid   469] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... open resumed>)         = 3
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   465] <... futex resumed>)        = 0
[pid   469] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   465] <... futex resumed>)        = 0
[pid   469] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... open resumed>)         = 4
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   469] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 0
[pid   465] <... futex resumed>)        = 0
[pid   469] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   468] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   468] close(4 <unfinished ...>
[pid   465] <... futex resumed>)        = 0
[pid   469] ftruncate(4, 33587195 <unfinished ...>
[pid   468] <... close resumed>)        = 0
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   468] close(3 <unfinished ...>
[pid   467] <... open resumed>)         = 3
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... close resumed>)        = 0
[pid   467] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   468] <... futex resumed>)        = 1
[pid   467] <... open resumed>)         = 4
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   466] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   467] <... futex resumed>)        = 0
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   468] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   467] ftruncate(4, 33587195 <unfinished ...>
[pid   466] <... futex resumed>)        = 0
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   468] <... open resumed>)         = 3
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   464] <... futex resumed>)        = 0
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   464] <... futex resumed>)        = 0
[pid   468] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   468] <... open resumed>)         = 4
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   464] <... futex resumed>)        = 0
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] ftruncate(4, 33587195 <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... ftruncate resumed>)    = 0
[pid   463] <... sendfile resumed>)     = 4
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... ftruncate resumed>)    = 0
[pid   467] <... ftruncate resumed>)    = 0
[pid   462] <... madvise resumed>)      = 0
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... futex resumed>)        = 1
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] <... futex resumed>)        = 0
[pid   463] <... futex resumed>)        = 1
[pid   458] <... futex resumed>)        = 0
[pid   469] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   468] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   463] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   461] <... madvise resumed>)      = 0
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] <... futex resumed>)        = 0
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   458] <... futex resumed>)        = 0
[pid   469] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   467] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... futex resumed>)        = 0
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   464] <... futex resumed>)        = 0
[pid   463] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   462] <... futex resumed>)        = 1
[pid   461] <... futex resumed>)        = 1
[pid   460] <... futex resumed>)        = 0
[pid   459] <... futex resumed>)        = 0
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... sendfile resumed>)     = 4
[pid   468] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   467] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   468] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   467] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   462] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   467] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   468] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   467] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   460] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   459] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   469] <... futex resumed>)        = 1
[pid   465] <... futex resumed>)        = 0
[pid   461] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   460] <... futex resumed>)        = 0
[pid   459] <... futex resumed>)        = 1
[pid   469] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   460] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   459] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   465] <... futex resumed>)        = 0
[pid   461] <... openat resumed>)       = 5
[pid   469] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   461] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   462] <... futex resumed>)        = 0
[pid   461] <... futex resumed>)        = 1
[pid   460] <... futex resumed>)        = 0
[pid   462] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   461] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   460] exit_group(0 <unfinished ...>
[pid   462] <... openat resumed>)       = 5
[pid   461] <... futex resumed>)        = ?
[pid   460] <... exit_group resumed>)   = ?
[pid   462] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   461] +++ exited with 0 +++
[pid   460] +++ exited with 0 +++
[pid   462] <... futex resumed>)        = 1
[pid   459] <... futex resumed>)        = 0
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=460, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   462] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   459] exit_group(0)               = ?
[pid   462] <... futex resumed>)        = ?
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 470
[pid   463] <... mmap resumed>)         = 0x20000000
[pid   469] <... mmap resumed>)         = 0x20000000
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] <... futex resumed>)        = 0
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   469] <... futex resumed>)        = 1
[pid   469] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 470 attached
 <unfinished ...>
[pid   470] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   458] <... futex resumed>)        = 0
[pid   462] +++ exited with 0 +++
[pid   459] +++ exited with 0 +++
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] <... set_robust_list resumed>) = 0
[pid   468] <... mmap resumed>)         = 0x20000000
[pid   467] <... mmap resumed>)         = 0x20000000
[pid   463] <... futex resumed>)        = 1
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=459, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   470] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   470] <... prctl resumed>)        = 0
[pid   468] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   293] <... restart_syscall resumed>) = 0
[pid   470] setpgid(0, 0 <unfinished ...>
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   470] <... setpgid resumed>)      = 0
[pid   468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   468] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   470] <... openat resumed>)       = 3
[pid   293] <... openat resumed>)       = 3
[pid   470] write(3, "1000", 4 <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   470] <... write resumed>)        = 4
[pid   293] <... ioctl resumed>)        = 0
[pid   470] close(3 <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   470] <... close resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   470] <... futex resumed>)        = 0
[pid   470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 471
[pid   470] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   470] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   470] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[472], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 472
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 472 attached
 <unfinished ...>
[pid   472] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   472] memfd_create("syzkaller", 0) = 3
[pid   472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   467] <... madvise resumed>)      = 0
[pid   468] <... madvise resumed>)      = 0
[pid   463] <... madvise resumed>)      = 0
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   463] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   458] <... futex resumed>)        = 0
./strace-static-x86_64: Process 471 attached
[pid   469] <... madvise resumed>)      = 0
[pid   468] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   458] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   464] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   463] <... futex resumed>)        = 0
[pid   458] <... futex resumed>)        = 1
[pid   468] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   467] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   458] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   468] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   467] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   466] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   464] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   463] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   468] <... openat resumed>)       = 5
[pid   467] <... openat resumed>)       = 5
[pid   463] <... openat resumed>)       = 5
[pid   472] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   463] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   463] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   471] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   468] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   467] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   458] <... futex resumed>)        = 0
[pid   468] <... futex resumed>)        = 1
[pid   467] <... futex resumed>)        = 1
[pid   466] <... futex resumed>)        = 0
[pid   464] <... futex resumed>)        = 0
[pid   458] exit_group(0 <unfinished ...>
[pid   471] <... set_robust_list resumed>) = 0
[pid   468] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   467] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   466] exit_group(0 <unfinished ...>
[pid   464] exit_group(0 <unfinished ...>
[pid   463] <... futex resumed>)        = ?
[pid   458] <... exit_group resumed>)   = ?
[pid   471] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   468] <... futex resumed>)        = ?
[pid   467] <... futex resumed>)        = ?
[pid   466] <... exit_group resumed>)   = ?
[pid   464] <... exit_group resumed>)   = ?
[pid   463] +++ exited with 0 +++
[pid   458] +++ exited with 0 +++
[pid   471] <... prctl resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=458, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   472] <... write resumed>)        = 1048576
[pid   471] setpgid(0, 0 <unfinished ...>
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   468] +++ exited with 0 +++
[pid   467] +++ exited with 0 +++
[pid   466] +++ exited with 0 +++
[pid   464] +++ exited with 0 +++
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   472] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   471] <... setpgid resumed>)      = 0
[pid   469] <... futex resumed>)        = 1
[pid   465] <... futex resumed>)        = 0
[pid   301] <... openat resumed>)       = 3
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=466, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   465] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   465] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 473
[pid   471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   471] write(3, "1000", 4)         = 4
[pid   471] close(3)                    = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   471] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   471] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[474], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 474
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   469] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   472] <... munmap resumed>)       = 0
[pid   469] <... openat resumed>)       = 5
[pid   469] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   465] <... futex resumed>)        = 0
[pid   465] exit_group(0)               = ?
[pid   469] <... futex resumed>)        = ?
[pid   472] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   472] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   472] ioctl(4, LOOP_CLR_FD)       = 0
[pid   472] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   472] close(4)                    = 0
[pid   472] close(3 <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=464, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   301] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] <... restart_syscall resumed>) = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 475
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   472] <... close resumed>)        = 0
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 476
[pid   469] +++ exited with 0 +++
[pid   465] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=465, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 477
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   470] <... futex resumed>)        = 0
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   472] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   470] <... futex resumed>)        = 0
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   472] <... futex resumed>)        = 1
[pid   472] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
./strace-static-x86_64: Process 477 attached
./strace-static-x86_64: Process 476 attached
./strace-static-x86_64: Process 475 attached
./strace-static-x86_64: Process 474 attached
./strace-static-x86_64: Process 473 attached
[pid   477] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   475] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   473] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... set_robust_list resumed>) = 0
[pid   475] <... set_robust_list resumed>) = 0
[pid   473] <... set_robust_list resumed>) = 0
[pid   472] <... futex resumed>)        = 1
[pid   470] <... futex resumed>)        = 0
[pid   477] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   475] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   473] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   472] ftruncate(4, 33587195 <unfinished ...>
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... prctl resumed>)        = 0
[pid   475] <... prctl resumed>)        = 0
[pid   473] <... prctl resumed>)        = 0
[pid   472] <... ftruncate resumed>)    = 0
[pid   470] <... futex resumed>)        = 0
[pid   477] setpgid(0, 0 <unfinished ...>
[pid   475] setpgid(0, 0 <unfinished ...>
[pid   473] setpgid(0, 0 <unfinished ...>
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   477] <... setpgid resumed>)      = 0
[pid   475] <... setpgid resumed>)      = 0
[pid   473] <... setpgid resumed>)      = 0
[pid   472] <... futex resumed>)        = 0
[pid   470] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   472] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... openat resumed>)       = 3
[pid   475] <... openat resumed>)       = 3
[pid   474] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   473] <... openat resumed>)       = 3
[pid   470] <... futex resumed>)        = 0
[pid   477] write(3, "1000", 4 <unfinished ...>
[pid   475] write(3, "1000", 4 <unfinished ...>
[pid   474] <... set_robust_list resumed>) = 0
[pid   473] write(3, "1000", 4 <unfinished ...>
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   476] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   472] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   477] <... write resumed>)        = 4
[pid   475] <... write resumed>)        = 4
[pid   474] memfd_create("syzkaller", 0 <unfinished ...>
[pid   473] <... write resumed>)        = 4
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] <... set_robust_list resumed>) = 0
[pid   477] close(3 <unfinished ...>
[pid   475] close(3 <unfinished ...>
[pid   474] <... memfd_create resumed>) = 3
[pid   473] close(3 <unfinished ...>
[pid   477] <... close resumed>)        = 0
[pid   475] <... close resumed>)        = 0
[pid   474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   473] <... close resumed>)        = 0
[pid   472] <... futex resumed>)        = 1
[pid   470] <... futex resumed>)        = 0
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] <... mmap resumed>)         = 0x7efceeaa9000
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... futex resumed>)        = 0
[pid   476] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   475] <... futex resumed>)        = 0
[pid   473] <... futex resumed>)        = 0
[pid   472] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   470] <... futex resumed>)        = 0
[pid   477] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   475] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   473] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   477] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   475] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   473] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   476] <... prctl resumed>)        = 0
[pid   477] <... mprotect resumed>)     = 0
[pid   475] <... mprotect resumed>)     = 0
[pid   473] <... mprotect resumed>)     = 0
[pid   477] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   476] setpgid(0, 0 <unfinished ...>
[pid   475] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   473] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   477] <... clone resumed>, parent_tid=[478], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 478
[pid   476] <... setpgid resumed>)      = 0
[pid   475] <... clone resumed>, parent_tid=[479], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 479
[pid   473] <... clone resumed>, parent_tid=[480], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 480
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... futex resumed>)        = 0
[pid   475] <... futex resumed>)        = 0
[pid   473] <... futex resumed>)        = 0
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   476] write(3, "1000", 4)         = 4
[pid   476] close(3)                    = 0
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   476] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   476] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   474] <... write resumed>)        = 1048576
[pid   474] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   476] <... clone resumed>, parent_tid=[481], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 481
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] <... munmap resumed>)       = 0
[pid   474] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   474] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   474] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 480 attached
[pid   476] <... futex resumed>)        = 0
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   480] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   480] memfd_create("syzkaller", 0) = 3
[pid   480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   474] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   474] close(4)                    = 0
[pid   474] close(3./strace-static-x86_64: Process 478 attached
 <unfinished ...>
[pid   478] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   478] memfd_create("syzkaller", 0) = 3
[pid   478] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   474] <... close resumed>)        = 0
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   474] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
./strace-static-x86_64: Process 479 attached
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   474] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   474] ftruncate(4, 33587195 <unfinished ...>
[pid   479] set_robust_list(0x7efcf6ec99e0, 24) = 0
./strace-static-x86_64: Process 481 attached
[pid   479] memfd_create("syzkaller", 0 <unfinished ...>
[pid   481] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   479] <... memfd_create resumed>) = 3
[pid   481] <... set_robust_list resumed>) = 0
[pid   479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   474] <... ftruncate resumed>)    = 0
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   471] <... futex resumed>)        = 0
[pid   474] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   474] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   471] <... futex resumed>)        = 0
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] <... futex resumed>)        = 0
[pid   471] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   474] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] memfd_create("syzkaller", 0 <unfinished ...>
[pid   479] <... mmap resumed>)         = 0x7efceeaa9000
[pid   471] <... futex resumed>)        = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   478] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   481] <... memfd_create resumed>) = 3
[pid   481] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   478] <... write resumed>)        = 1048576
[pid   481] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   480] <... write resumed>)        = 1048576
[pid   479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   474] <... mmap resumed>)         = 0x20000000
[pid   472] <... mmap resumed>)         = 0x20000000
[pid   478] munmap(0x7efceeaa9000, 1048576) = 0
[pid   478] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   478] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   478] ioctl(4, LOOP_CLR_FD)       = 0
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   474] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   478] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   478] close(4)                    = 0
[pid   478] close(3)                    = 0
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... futex resumed>)        = 0
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   478] <... futex resumed>)        = 1
[pid   478] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... futex resumed>)        = 0
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   478] <... futex resumed>)        = 1
[pid   478] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   477] <... futex resumed>)        = 0
[pid   478] ftruncate(4, 33587195 <unfinished ...>
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   470] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   470] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   470] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   470] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[482], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 482
[pid   470] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   470] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   472] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 482 attached
 <unfinished ...>
[pid   482] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   482] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   480] munmap(0x7efceeaa9000, 1048576) = 0
[pid   480] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   480] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   480] ioctl(4, LOOP_CLR_FD)       = 0
[pid   479] <... write resumed>)        = 1048576
[pid   479] munmap(0x7efceeaa9000, 1048576) = 0
[pid   479] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   480] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   479] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   480] close(4 <unfinished ...>
[pid   479] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   482] <... madvise resumed>)      = 0
[pid   478] <... ftruncate resumed>)    = 0
[pid   482] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   470] <... futex resumed>)        = 0
[pid   482] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   470] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   478] <... futex resumed>)        = 1
[pid   477] <... futex resumed>)        = 0
[pid   472] <... futex resumed>)        = 0
[pid   470] <... futex resumed>)        = 1
[pid   478] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   472] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   470] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   477] <... futex resumed>)        = 0
[pid   472] <... openat resumed>)       = 5
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   472] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   470] <... futex resumed>)        = 0
[pid   472] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   470] exit_group(0 <unfinished ...>
[pid   482] <... futex resumed>)        = ?
[pid   472] <... futex resumed>)        = ?
[pid   470] <... exit_group resumed>)   = ?
[pid   482] +++ exited with 0 +++
[pid   478] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   472] +++ exited with 0 +++
[pid   470] +++ exited with 0 +++
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=470, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   478] <... futex resumed>)        = 1
[pid   477] <... futex resumed>)        = 0
[pid   478] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 483
[pid   480] <... close resumed>)        = 0
[pid   479] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   480] close(3 <unfinished ...>
[pid   479] <... ioctl resumed>)        = 0
[pid   481] <... write resumed>)        = 1048576
[pid   474] <... madvise resumed>)      = 0
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   471] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   471] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   474] <... futex resumed>)        = 1
[pid   474] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   474] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   471] <... futex resumed>)        = 0
[pid   471] exit_group(0)               = ?
[pid   474] <... futex resumed>)        = ?
[pid   480] <... close resumed>)        = 0
[pid   481] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   479] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   481] <... munmap resumed>)       = 0
[pid   479] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   474] +++ exited with 0 +++
[pid   471] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=471, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   479] close(4 <unfinished ...>
[pid   293] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   481] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   479] <... close resumed>)        = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   479] close(3 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 484
[pid   481] <... openat resumed>)       = 4
[pid   481] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 483 attached
 <unfinished ...>
[pid   483] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   483] setpgid(0, 0)               = 0
[pid   483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   483] write(3, "1000", 4)         = 4
[pid   483] close(3 <unfinished ...>
[pid   481] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   481] ioctl(4, LOOP_CLR_FD)       = 0
[pid   483] <... close resumed>)        = 0
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   483] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   483] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[485], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 485
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   481] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   480] <... futex resumed>)        = 1
[pid   473] <... futex resumed>)        = 0
[pid   481] close(4 <unfinished ...>
[pid   480] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   481] <... close resumed>)        = 0
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   480] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   481] close(3 <unfinished ...>
[pid   480] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   473] <... futex resumed>)        = 0
[pid   480] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 484 attached
 <unfinished ...>
[pid   484] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   480] <... open resumed>)         = 4
[pid   484] <... set_robust_list resumed>) = 0
[pid   484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   484] setpgid(0, 0)               = 0
[pid   484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   484] write(3, "1000", 4)         = 4
[pid   484] close(3)                    = 0
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   473] <... futex resumed>)        = 0
[pid   480] ftruncate(4, 33587195 <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   484] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   484] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[486], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 486
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   481] <... close resumed>)        = 0
./strace-static-x86_64: Process 485 attached
[pid   480] <... ftruncate resumed>)    = 0
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   473] <... futex resumed>)        = 0
[pid   480] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   479] <... close resumed>)        = 0
[pid   480] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   479] <... futex resumed>)        = 1
[pid   475] <... futex resumed>)        = 0
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   480] <... futex resumed>)        = 1
[pid   479] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   475] <... futex resumed>)        = 0
[pid   473] <... futex resumed>)        = 0
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   480] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   479] <... open resumed>)         = 3
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   485] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   479] <... futex resumed>)        = 1
[pid   475] <... futex resumed>)        = 0
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   485] <... set_robust_list resumed>) = 0
[pid   485] memfd_create("syzkaller", 0) = 3
[pid   485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   479] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] <... futex resumed>)        = 0
[pid   481] <... futex resumed>)        = 1
[pid   481] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   479] <... futex resumed>)        = 1
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] <... futex resumed>)        = 0
[pid   479] ftruncate(4, 33587195 <unfinished ...>
[pid   476] <... futex resumed>)        = 0
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] <... open resumed>)         = 3
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   475] <... futex resumed>)        = 0
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   476] <... futex resumed>)        = 0
[pid   481] <... futex resumed>)        = 1
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 486 attached
) = 0
[pid   481] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   481] <... open resumed>)         = 4
[pid   486] <... set_robust_list resumed>) = 0
[pid   486] memfd_create("syzkaller", 0 <unfinished ...>
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   476] <... futex resumed>)        = 0
[pid   486] <... memfd_create resumed>) = 3
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   481] ftruncate(4, 33587195 <unfinished ...>
[pid   479] <... ftruncate resumed>)    = 0
[pid   476] <... futex resumed>)        = 0
[pid   486] <... mmap resumed>)         = 0x7efceeaa9000
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   481] <... ftruncate resumed>)    = 0
[pid   479] <... futex resumed>)        = 1
[pid   475] <... futex resumed>)        = 0
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   479] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   481] <... futex resumed>)        = 1
[pid   479] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   476] <... futex resumed>)        = 0
[pid   481] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   479] <... futex resumed>)        = 1
[pid   476] <... futex resumed>)        = 0
[pid   475] <... futex resumed>)        = 0
[pid   481] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   479] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   479] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   475] <... futex resumed>)        = 0
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   479] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   481] <... futex resumed>)        = 1
[pid   476] <... futex resumed>)        = 0
[pid   481] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   477] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   477] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   485] <... write resumed>)        = 1048576
[pid   485] munmap(0x7efceeaa9000, 1048576) = 0
[pid   485] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   485] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   485] ioctl(4, LOOP_CLR_FD)       = 0
[pid   477] <... mmap resumed>)         = 0x7efceeb88000
[pid   477] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   477] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[487], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 487
[pid   478] <... mmap resumed>)         = 0x20000000
[pid   477] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   477] <... futex resumed>)        = 0
[pid   478] <... futex resumed>)        = 0
[pid   477] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   478] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   486] <... write resumed>)        = 1048576
[pid   485] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   486] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   485] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   486] <... munmap resumed>)       = 0
[pid   485] close(4 <unfinished ...>
[pid   486] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   485] <... close resumed>)        = 0
[pid   486] <... openat resumed>)       = 4
[pid   485] close(3 <unfinished ...>
[pid   486] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   485] <... close resumed>)        = 0
[pid   479] <... mmap resumed>)         = 0x20000000
[pid   486] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   486] ioctl(4, LOOP_CLR_FD)       = 0
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   483] <... futex resumed>)        = 0
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   485] <... futex resumed>)        = 1
[pid   485] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   483] <... futex resumed>)        = 0
[pid   485] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   485] <... open resumed>)         = 4
[pid   483] <... futex resumed>)        = 0
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   485] <... futex resumed>)        = 0
[pid   483] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   485] ftruncate(4, 33587195 <unfinished ...>
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   485] <... ftruncate resumed>)    = 0
[pid   483] <... futex resumed>)        = 0
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   485] <... futex resumed>)        = 0
[pid   483] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   485] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 487 attached
 <unfinished ...>
[pid   486] close(4 <unfinished ...>
[pid   485] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   483] <... futex resumed>)        = 0
[pid   479] <... futex resumed>)        = 1
[pid   475] <... futex resumed>)        = 0
[pid   487] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   486] <... close resumed>)        = 0
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   487] <... set_robust_list resumed>) = 0
[pid   486] close(3 <unfinished ...>
[pid   485] <... futex resumed>)        = 0
[pid   483] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   475] <... futex resumed>)        = 0
[pid   487] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   486] <... close resumed>)        = 0
[pid   485] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   479] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   483] <... futex resumed>)        = 0
[pid   481] <... mmap resumed>)         = 0x20000000
[pid   480] <... mmap resumed>)         = 0x20000000
[pid   486] <... futex resumed>)        = 1
[pid   484] <... futex resumed>)        = 0
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... open resumed>)         = 3
[pid   484] <... futex resumed>)        = 0
[pid   481] <... futex resumed>)        = 1
[pid   476] <... futex resumed>)        = 0
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... futex resumed>)        = 0
[pid   484] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   481] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   476] <... futex resumed>)        = 0
[pid   486] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] <... open resumed>)         = 4
[pid   484] <... futex resumed>)        = 0
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] <... futex resumed>)        = 0
[pid   484] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   486] ftruncate(4, 33587195 <unfinished ...>
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   473] <... futex resumed>)        = 0
[pid   480] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   485] <... mmap resumed>)         = 0x20000000
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   483] <... futex resumed>)        = 0
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   485] <... futex resumed>)        = 1
[pid   485] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   487] <... madvise resumed>)      = 0
[pid   481] <... madvise resumed>)      = 0
[pid   479] <... madvise resumed>)      = 0
[pid   486] <... ftruncate resumed>)    = 0
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] <... futex resumed>)        = 1
[pid   479] <... futex resumed>)        = 1
[pid   486] <... futex resumed>)        = 1
[pid   484] <... futex resumed>)        = 0
[pid   481] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   479] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   486] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   484] <... futex resumed>)        = 0
[pid   486] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   486] <... sendfile resumed>)     = 4
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   484] <... futex resumed>)        = 0
[pid   486] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   484] <... futex resumed>)        = 0
[pid   486] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   487] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] <... futex resumed>)        = 0
[pid   475] <... futex resumed>)        = 0
[pid   476] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   475] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] <... futex resumed>)        = 1
[pid   475] <... futex resumed>)        = 1
[pid   476] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   475] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   487] <... futex resumed>)        = 1
[pid   477] <... futex resumed>)        = 0
[pid   487] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   485] <... madvise resumed>)      = 0
[pid   481] <... futex resumed>)        = 0
[pid   479] <... futex resumed>)        = 0
[pid   477] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   480] <... madvise resumed>)      = 0
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   479] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   478] <... futex resumed>)        = 0
[pid   477] <... futex resumed>)        = 1
[pid   485] <... futex resumed>)        = 1
[pid   483] <... futex resumed>)        = 0
[pid   481] <... openat resumed>)       = 5
[pid   479] <... openat resumed>)       = 5
[pid   478] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   477] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   485] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   483] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   481] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   479] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   478] <... openat resumed>)       = 5
[pid   485] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   483] <... futex resumed>)        = 0
[pid   481] <... futex resumed>)        = 1
[pid   479] <... futex resumed>)        = 1
[pid   478] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   476] <... futex resumed>)        = 0
[pid   475] <... futex resumed>)        = 0
[pid   485] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   483] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   481] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   479] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   478] <... futex resumed>)        = 1
[pid   477] <... futex resumed>)        = 0
[pid   485] <... openat resumed>)       = 5
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   478] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   477] exit_group(0 <unfinished ...>
[pid   476] exit_group(0 <unfinished ...>
[pid   475] exit_group(0 <unfinished ...>
[pid   485] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   478] <... futex resumed>)        = ?
[pid   477] <... exit_group resumed>)   = ?
[pid   476] <... exit_group resumed>)   = ?
[pid   485] <... futex resumed>)        = 1
[pid   483] <... futex resumed>)        = 0
[pid   481] <... futex resumed>)        = ?
[pid   480] <... futex resumed>)        = 1
[pid   479] <... futex resumed>)        = ?
[pid   478] +++ exited with 0 +++
[pid   475] <... exit_group resumed>)   = ?
[pid   473] <... futex resumed>)        = 0
[pid   485] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   483] exit_group(0 <unfinished ...>
[pid   473] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   485] <... futex resumed>)        = ?
[pid   483] <... exit_group resumed>)   = ?
[pid   473] <... futex resumed>)        = 0
[pid   485] +++ exited with 0 +++
[pid   483] +++ exited with 0 +++
[pid   481] +++ exited with 0 +++
[pid   476] +++ exited with 0 +++
[pid   473] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=476, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=483, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   487] <... futex resumed>)        = ?
[pid   480] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   479] +++ exited with 0 +++
[pid   475] +++ exited with 0 +++
[pid   480] <... openat resumed>)       = 5
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=475, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   480] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   473] <... futex resumed>)        = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   473] exit_group(0 <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
[pid   473] <... exit_group resumed>)   = ?
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   294] <... openat resumed>)       = 3
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 488
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 489
[pid   294] close(3)                    = 0
[pid   487] +++ exited with 0 +++
[pid   477] +++ exited with 0 +++
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=477, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 490
./strace-static-x86_64: Process 489 attached
[pid   489] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   295] <... restart_syscall resumed>) = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 491
[pid   489] <... set_robust_list resumed>) = 0
[pid   489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   489] setpgid(0, 0)               = 0
[pid   489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 490 attached
[pid   490] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   489] write(3, "1000", 4)         = 4
[pid   489] close(3)                    = 0
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... set_robust_list resumed>) = 0
[pid   489] <... futex resumed>)        = 0
[pid   490] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
./strace-static-x86_64: Process 488 attached
[pid   489] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   488] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   489] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   490] <... prctl resumed>)        = 0
[pid   480] +++ exited with 0 +++
[pid   473] +++ exited with 0 +++
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=473, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   299] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   490] setpgid(0, 0)               = 0
[pid   488] <... set_robust_list resumed>) = 0
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 492
[pid   490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   489] <... clone resumed>, parent_tid=[493], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 493
[pid   488] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   490] <... openat resumed>)       = 3
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] <... prctl resumed>)        = 0
[pid   490] write(3, "1000", 4 <unfinished ...>
[pid   489] <... futex resumed>)        = 0
[pid   488] setpgid(0, 0 <unfinished ...>
[pid   490] <... write resumed>)        = 4
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   488] <... setpgid resumed>)      = 0
[pid   490] close(3 <unfinished ...>
[pid   488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   490] <... close resumed>)        = 0
[pid   488] <... openat resumed>)       = 3
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] write(3, "1000", 4 <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   488] <... write resumed>)        = 4
[pid   490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   488] close(3 <unfinished ...>
[pid   490] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   488] <... close resumed>)        = 0
[pid   490] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... mprotect resumed>)     = 0
[pid   488] <... futex resumed>)        = 0
[pid   490] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   490] <... clone resumed>, parent_tid=[494], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 494
[pid   488] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   488] <... mprotect resumed>)     = 0
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   488] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[495], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 495
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 493 attached
 <unfinished ...>
[pid   493] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   493] memfd_create("syzkaller", 0) = 3
[pid   493] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 495 attached
[pid   495] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   495] memfd_create("syzkaller", 0) = 3
[pid   495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   493] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 491 attached
./strace-static-x86_64: Process 494 attached
./strace-static-x86_64: Process 492 attached
 <unfinished ...>
[pid   491] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   492] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   491] <... set_robust_list resumed>) = 0
[pid   494] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   492] <... set_robust_list resumed>) = 0
[pid   491] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   492] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   494] <... set_robust_list resumed>) = 0
[pid   491] <... prctl resumed>)        = 0
[pid   492] <... prctl resumed>)        = 0
[pid   491] setpgid(0, 0 <unfinished ...>
[pid   492] setpgid(0, 0 <unfinished ...>
[pid   491] <... setpgid resumed>)      = 0
[pid   491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   492] <... setpgid resumed>)      = 0
[pid   492] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   491] <... openat resumed>)       = 3
[pid   492] <... openat resumed>)       = 3
[pid   492] write(3, "1000", 4 <unfinished ...>
[pid   491] write(3, "1000", 4 <unfinished ...>
[pid   494] memfd_create("syzkaller", 0 <unfinished ...>
[pid   492] <... write resumed>)        = 4
[pid   491] <... write resumed>)        = 4
[pid   492] close(3 <unfinished ...>
[pid   491] close(3 <unfinished ...>
[pid   492] <... close resumed>)        = 0
[pid   491] <... close resumed>)        = 0
[pid   494] <... memfd_create resumed>) = 3
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   493] <... write resumed>)        = 1048576
[pid   495] <... write resumed>)        = 1048576
[pid   493] munmap(0x7efceeaa9000, 1048576) = 0
[pid   493] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   494] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   491] <... futex resumed>)        = 0
[pid   493] <... openat resumed>)       = 4
[pid   493] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   493] ioctl(4, LOOP_CLR_FD)       = 0
[pid   495] munmap(0x7efceeaa9000, 1048576) = 0
[pid   495] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   495] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   495] ioctl(4, LOOP_CLR_FD)       = 0
[pid   493] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   493] close(4)                    = 0
[pid   493] close(3 <unfinished ...>
[pid   495] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   495] close(4)                    = 0
[pid   495] close(3 <unfinished ...>
[pid   484] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   484] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   484] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   484] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[496], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 496
[pid   484] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   484] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] <... close resumed>)        = 0
[pid   493] <... close resumed>)        = 0
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   489] <... futex resumed>)        = 0
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   493] <... futex resumed>)        = 1
[pid   493] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   489] <... futex resumed>)        = 0
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   492] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   494] <... mmap resumed>)         = 0x7efceeaa9000
[pid   491] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   493] <... futex resumed>)        = 1
[pid   493] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   492] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   489] <... futex resumed>)        = 0
[pid   493] ftruncate(4, 33587195 <unfinished ...>
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   493] <... ftruncate resumed>)    = 0
[pid   489] <... futex resumed>)        = 0
[pid   495] <... futex resumed>)        = 1
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   488] <... futex resumed>)        = 0
[pid   495] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   493] <... futex resumed>)        = 0
[pid   489] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   493] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] <... futex resumed>)        = 0
[pid   495] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   489] <... futex resumed>)        = 0
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] <... open resumed>)         = 3
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   494] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   493] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   491] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   488] <... futex resumed>)        = 0
[pid   495] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... open resumed>)         = 4
[pid   493] <... futex resumed>)        = 1
[pid   489] <... futex resumed>)        = 0
[pid   488] <... futex resumed>)        = 0
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   493] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] <... futex resumed>)        = 0
[pid   492] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   491] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   489] <... futex resumed>)        = 0
[pid   488] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   495] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   488] <... futex resumed>)        = 0
./strace-static-x86_64: Process 496 attached
[pid   495] ftruncate(4, 33587195 <unfinished ...>
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   496] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   495] <... ftruncate resumed>)    = 0
[pid   492] <... mprotect resumed>)     = 0
[pid   491] <... mprotect resumed>)     = 0
[pid   496] <... set_robust_list resumed>) = 0
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   496] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   495] <... futex resumed>)        = 1
[pid   488] <... futex resumed>)        = 0
[pid   495] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   492] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   491] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   492] <... clone resumed>, parent_tid=[497], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 497
[pid   491] <... clone resumed>, parent_tid=[498], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 498
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] <... write resumed>)        = 1048576
[pid   492] <... futex resumed>)        = 0
[pid   491] <... futex resumed>)        = 0
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 498 attached
./strace-static-x86_64: Process 497 attached
 <unfinished ...>
[pid   494] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   486] <... mmap resumed>)         = 0x20000000
[pid   498] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   497] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   494] <... munmap resumed>)       = 0
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   486] <... futex resumed>)        = 0
[pid   494] <... openat resumed>)       = 4
[pid   486] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   494] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   497] <... set_robust_list resumed>) = 0
[pid   494] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   497] memfd_create("syzkaller", 0 <unfinished ...>
[pid   494] <... ioctl resumed>)        = 0
[pid   498] <... set_robust_list resumed>) = 0
[pid   497] <... memfd_create resumed>) = 3
[pid   497] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   498] memfd_create("syzkaller", 0 <unfinished ...>
[pid   497] <... mmap resumed>)         = 0x7efceeaa9000
[pid   493] <... mmap resumed>)         = 0x20000000
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   489] <... futex resumed>)        = 0
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   493] <... futex resumed>)        = 1
[pid   493] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   494] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   494] close(4)                    = 0
[pid   494] close(3)                    = 0
[pid   498] <... memfd_create resumed>) = 3
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   494] <... futex resumed>)        = 1
[pid   490] <... futex resumed>)        = 0
[pid   494] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... mmap resumed>)         = 0x7efceeaa9000
[pid   490] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] <... open resumed>)         = 3
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   490] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   490] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] ftruncate(4, 33587195 <unfinished ...>
[pid   498] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   495] <... sendfile resumed>)     = 4
[pid   494] <... ftruncate resumed>)    = 0
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   488] <... futex resumed>)        = 0
[pid   495] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   488] <... futex resumed>)        = 0
[pid   495] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   497] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   484] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   484] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] <... futex resumed>)        = 1
[pid   490] <... futex resumed>)        = 0
[pid   486] <... futex resumed>)        = 0
[pid   484] <... futex resumed>)        = 1
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   484] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   497] <... write resumed>)        = 1048576
[pid   494] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   493] <... madvise resumed>)      = 0
[pid   486] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   493] <... futex resumed>)        = 1
[pid   489] <... futex resumed>)        = 0
[pid   486] <... futex resumed>)        = 1
[pid   484] <... futex resumed>)        = 0
[pid   493] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   489] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   486] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   493] <... openat resumed>)       = 5
[pid   489] <... futex resumed>)        = 0
[pid   493] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   489] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   493] <... futex resumed>)        = 0
[pid   489] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   493] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   489] exit_group(0 <unfinished ...>
[pid   493] <... futex resumed>)        = ?
[pid   489] <... exit_group resumed>)   = ?
[pid   494] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   493] +++ exited with 0 +++
[pid   489] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=489, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   496] <... madvise resumed>)      = 0
[pid   496] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   496] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   494] <... futex resumed>)        = 1
[pid   497] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   494] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   484] exit_group(0 <unfinished ...>
[pid   486] <... futex resumed>)        = ?
[pid   484] <... exit_group resumed>)   = ?
[pid   486] +++ exited with 0 +++
[pid   300] <... restart_syscall resumed>) = 0
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 499
[pid   496] <... futex resumed>)        = ?
[pid   496] +++ exited with 0 +++
[pid   484] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=484, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   293] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 500
./strace-static-x86_64: Process 499 attached
[pid   499] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   499] setpgid(0, 0)               = 0
[pid   499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   497] <... munmap resumed>)       = 0
[pid   499] <... openat resumed>)       = 3
[pid   497] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   499] write(3, "1000", 4 <unfinished ...>
[pid   497] <... openat resumed>)       = 4
[pid   499] <... write resumed>)        = 4
[pid   498] <... write resumed>)        = 1048576
[pid   499] close(3)                    = 0
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   499] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   499] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[501], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 501
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 500 attached
 <unfinished ...>
[pid   500] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   500] setpgid(0, 0)               = 0
[pid   500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   500] write(3, "1000", 4)         = 4
[pid   500] close(3)                    = 0
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   500] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   500] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   497] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   500] <... clone resumed>, parent_tid=[502], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 502
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 501 attached
 <unfinished ...>
[pid   497] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   497] ioctl(4, LOOP_CLR_FD)       = 0
[pid   501] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   501] memfd_create("syzkaller", 0) = 3
[pid   501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   497] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   498] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   497] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   497] close(4 <unfinished ...>
[pid   498] <... munmap resumed>)       = 0
[pid   497] <... close resumed>)        = 0
[pid   498] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   497] close(3./strace-static-x86_64: Process 502 attached
 <unfinished ...>
[pid   502] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   502] memfd_create("syzkaller", 0 <unfinished ...>
[pid   498] <... openat resumed>)       = 4
[pid   497] <... close resumed>)        = 0
[pid   498] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   502] <... memfd_create resumed>) = 3
[pid   498] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   502] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   498] <... ioctl resumed>)        = 0
[pid   497] <... futex resumed>)        = 1
[pid   492] <... futex resumed>)        = 0
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   497] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   497] <... futex resumed>)        = 1
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   498] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   497] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   498] close(4 <unfinished ...>
[pid   497] <... open resumed>)         = 4
[pid   488] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   488] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... close resumed>)        = 0
[pid   488] <... futex resumed>)        = 0
[pid   488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   498] close(3 <unfinished ...>
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... close resumed>)        = 0
[pid   497] <... futex resumed>)        = 1
[pid   492] <... futex resumed>)        = 0
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   497] ftruncate(4, 33587195 <unfinished ...>
[pid   498] <... futex resumed>)        = 1
[pid   497] <... ftruncate resumed>)    = 0
[pid   491] <... futex resumed>)        = 0
[pid   502] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   498] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   498] <... open resumed>)         = 3
[pid   497] <... futex resumed>)        = 1
[pid   492] <... futex resumed>)        = 0
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   501] <... write resumed>)        = 1048576
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   497] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] <... futex resumed>)        = 1
[pid   497] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   491] <... futex resumed>)        = 0
[pid   488] <... mmap resumed>)         = 0x7efceeb88000
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] <... futex resumed>)        = 0
[pid   488] <... mprotect resumed>)     = 0
[pid   498] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   497] <... futex resumed>)        = 1
[pid   492] <... futex resumed>)        = 0
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   490] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   488] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   497] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} <unfinished ...>
[pid   498] <... open resumed>)         = 4
[pid   501] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   490] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   488] <... clone resumed>, parent_tid=[503], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 503
[pid   501] <... munmap resumed>)       = 0
[pid   495] <... mmap resumed>)         = 0x20000000
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   490] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   488] <... futex resumed>)        = 0
[pid   501] <... openat resumed>)       = 4
[pid   495] <... futex resumed>)        = 0
[pid   490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   488] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   501] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   495] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   501] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   501] ioctl(4, LOOP_CLR_FD)       = 0
[pid   502] <... write resumed>)        = 1048576
[pid   502] munmap(0x7efceeaa9000, 1048576) = 0
./strace-static-x86_64: Process 503 attached
[pid   501] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   501] close(4)                    = 0
[pid   501] close(3)                    = 0
[pid   503] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   503] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   497] <... mmap resumed>)         = 0x20000000
[pid   502] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   498] <... futex resumed>)        = 1
[pid   491] <... futex resumed>)        = 0
[pid   502] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] ftruncate(4, 33587195 <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   501] <... futex resumed>)        = 1
[pid   499] <... futex resumed>)        = 0
[pid   491] <... futex resumed>)        = 0
[pid   502] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   501] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... ioctl resumed>)        = 0
[pid   501] <... open resumed>)         = 3
[pid   499] <... futex resumed>)        = 0
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   501] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   501] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] <... open resumed>)         = 4
[pid   499] <... futex resumed>)        = 0
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] <... mmap resumed>)         = 0x20000000
[pid   490] <... mmap resumed>)         = 0x7efceeb88000
[pid   502] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   501] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   490] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   502] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   501] ftruncate(4, 33587195 <unfinished ...>
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... mprotect resumed>)     = 0
[pid   502] close(4 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   502] <... close resumed>)        = 0
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   490] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   502] close(3)                    = 0
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] <... futex resumed>)        = 0
[pid   490] <... clone resumed>, parent_tid=[504], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 504
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... futex resumed>)        = 1
[pid   500] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   502] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   497] <... futex resumed>)        = 1
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   502] <... open resumed>)         = 3
[pid   500] <... futex resumed>)        = 0
[pid   492] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   502] <... futex resumed>)        = 0
[pid   500] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   502] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... open resumed>)         = 4
[pid   500] <... futex resumed>)        = 0
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   502] <... futex resumed>)        = 0
[pid   500] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   502] ftruncate(4, 33587195 <unfinished ...>
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   497] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 504 attached
 <unfinished ...>
[pid   504] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   504] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   503] <... madvise resumed>)      = 0
[pid   503] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... ftruncate resumed>)    = 0
[pid   501] <... ftruncate resumed>)    = 0
[pid   498] <... ftruncate resumed>)    = 0
[pid   488] <... futex resumed>)        = 0
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... futex resumed>)        = 1
[pid   501] <... futex resumed>)        = 1
[pid   500] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = 0
[pid   495] <... futex resumed>)        = 0
[pid   488] <... futex resumed>)        = 1
[pid   498] <... futex resumed>)        = 1
[pid   491] <... futex resumed>)        = 0
[pid   497] <... madvise resumed>)      = 0
[pid   502] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   501] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   488] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = 0
[pid   495] <... openat resumed>)       = 5
[pid   491] <... futex resumed>)        = 0
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   495] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   495] <... futex resumed>)        = 1
[pid   488] <... futex resumed>)        = 0
[pid   492] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   495] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   492] <... futex resumed>)        = 0
[pid   488] exit_group(0 <unfinished ...>
[pid   495] <... futex resumed>)        = ?
[pid   492] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   488] <... exit_group resumed>)   = ?
[pid   497] <... futex resumed>)        = 1
[pid   497] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   495] +++ exited with 0 +++
[pid   503] <... futex resumed>)        = ?
[pid   497] <... openat resumed>)       = 5
[pid   497] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... sendfile resumed>)     = 4
[pid   501] <... sendfile resumed>)     = 4
[pid   498] <... sendfile resumed>)     = 4
[pid   497] <... futex resumed>)        = 1
[pid   492] <... futex resumed>)        = 0
[pid   497] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   492] exit_group(0 <unfinished ...>
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   497] <... futex resumed>)        = ?
[pid   492] <... exit_group resumed>)   = ?
[pid   502] <... futex resumed>)        = 1
[pid   501] <... futex resumed>)        = 1
[pid   500] <... futex resumed>)        = 0
[pid   499] <... futex resumed>)        = 0
[pid   498] <... futex resumed>)        = 1
[pid   491] <... futex resumed>)        = 0
[pid   502] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   501] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   504] <... madvise resumed>)      = 0
[pid   503] +++ exited with 0 +++
[pid   500] <... futex resumed>)        = 0
[pid   497] +++ exited with 0 +++
[pid   492] +++ exited with 0 +++
[pid   488] +++ exited with 0 +++
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=488, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   491] <... futex resumed>)        = 0
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=492, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   504] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   490] <... futex resumed>)        = 0
[pid   490] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   494] <... futex resumed>)        = 0
[pid   490] <... futex resumed>)        = 1
[pid   494] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   490] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] <... openat resumed>)       = 5
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   494] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   490] <... futex resumed>)        = 0
[pid   494] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   490] exit_group(0 <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   494] <... futex resumed>)        = ?
[pid   490] <... exit_group resumed>)   = ?
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   504] <... futex resumed>)        = ?
[pid   494] +++ exited with 0 +++
[pid   301] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   504] +++ exited with 0 +++
[pid   490] +++ exited with 0 +++
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=490, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   301] close(3 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   299] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 505
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 506
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 507
./strace-static-x86_64: Process 505 attached
[pid   505] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   505] setpgid(0, 0)               = 0
[pid   505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   505] write(3, "1000", 4)         = 4
[pid   505] close(3)                    = 0
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   505] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   505] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[508], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 508
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   502] <... mmap resumed>)         = 0x20000000
./strace-static-x86_64: Process 507 attached
./strace-static-x86_64: Process 508 attached
./strace-static-x86_64: Process 506 attached
[pid   507] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] <... mmap resumed>)         = 0x20000000
[pid   498] <... mmap resumed>)         = 0x20000000
[pid   508] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   507] <... set_robust_list resumed>) = 0
[pid   506] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   502] <... futex resumed>)        = 1
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   508] <... set_robust_list resumed>) = 0
[pid   507] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   506] <... set_robust_list resumed>) = 0
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] <... futex resumed>)        = 1
[pid   499] <... futex resumed>)        = 0
[pid   498] <... futex resumed>)        = 1
[pid   491] <... futex resumed>)        = 0
[pid   502] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   507] <... prctl resumed>)        = 0
[pid   506] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   498] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   507] setpgid(0, 0 <unfinished ...>
[pid   506] <... prctl resumed>)        = 0
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   491] <... futex resumed>)        = 0
[pid   507] <... setpgid resumed>)      = 0
[pid   506] setpgid(0, 0 <unfinished ...>
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   508] memfd_create("syzkaller", 0) = 3
[pid   508] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   507] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   506] <... setpgid resumed>)      = 0
[pid   507] <... openat resumed>)       = 3
[pid   506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   507] write(3, "1000", 4 <unfinished ...>
[pid   506] <... openat resumed>)       = 3
[pid   507] <... write resumed>)        = 4
[pid   506] write(3, "1000", 4 <unfinished ...>
[pid   507] close(3 <unfinished ...>
[pid   506] <... write resumed>)        = 4
[pid   507] <... close resumed>)        = 0
[pid   506] close(3 <unfinished ...>
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] <... close resumed>)        = 0
[pid   507] <... futex resumed>)        = 0
[pid   507] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   507] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   506] <... futex resumed>)        = 0
[pid   507] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   507] <... mprotect resumed>)     = 0
[pid   506] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   507] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   506] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   507] <... clone resumed>, parent_tid=[510], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 510
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   506] <... clone resumed>, parent_tid=[511], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 511
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   508] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 511 attached
 <unfinished ...>
[pid   511] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   511] memfd_create("syzkaller", 0) = 3
[pid   501] <... madvise resumed>)      = 0
./strace-static-x86_64: Process 510 attached
[pid   502] <... madvise resumed>)      = 0
[pid   498] <... madvise resumed>)      = 0
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] <... futex resumed>)        = 1
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   511] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   510] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   508] <... write resumed>)        = 1048576
[pid   502] <... futex resumed>)        = 1
[pid   501] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   501] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   500] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   499] <... futex resumed>)        = 0
[pid   511] <... mmap resumed>)         = 0x7efceeaa9000
[pid   510] <... set_robust_list resumed>) = 0
[pid   508] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   502] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   501] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] <... futex resumed>)        = 1
[pid   491] <... futex resumed>)        = 0
[pid   502] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   501] <... openat resumed>)       = 5
[pid   500] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   498] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   491] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   502] <... openat resumed>)       = 5
[pid   501] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   498] <... openat resumed>)       = 5
[pid   491] <... futex resumed>)        = 0
[pid   502] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   501] <... futex resumed>)        = 1
[pid   499] <... futex resumed>)        = 0
[pid   498] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   491] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   502] <... futex resumed>)        = 1
[pid   501] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   500] <... futex resumed>)        = 0
[pid   499] exit_group(0 <unfinished ...>
[pid   498] <... futex resumed>)        = 0
[pid   491] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   502] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   501] <... futex resumed>)        = ?
[pid   500] exit_group(0 <unfinished ...>
[pid   499] <... exit_group resumed>)   = ?
[pid   498] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   491] exit_group(0 <unfinished ...>
[pid   510] memfd_create("syzkaller", 0 <unfinished ...>
[pid   508] <... munmap resumed>)       = 0
[pid   502] <... futex resumed>)        = ?
[pid   501] +++ exited with 0 +++
[pid   500] <... exit_group resumed>)   = ?
[pid   499] +++ exited with 0 +++
[pid   498] <... futex resumed>)        = ?
[pid   491] <... exit_group resumed>)   = ?
[pid   511] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   510] <... memfd_create resumed>) = 3
[pid   508] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   502] +++ exited with 0 +++
[pid   500] +++ exited with 0 +++
[pid   498] +++ exited with 0 +++
[pid   491] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=499, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   510] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 512
./strace-static-x86_64: Process 512 attached
[pid   512] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   512] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   512] setpgid(0, 0)               = 0
[pid   512] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   512] write(3, "1000", 4)         = 4
[pid   512] close(3)                    = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   512] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   512] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[513], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 513
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 513 attached
 <unfinished ...>
[pid   513] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   513] memfd_create("syzkaller", 0) = 3
[pid   513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=500, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=491, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   510] <... mmap resumed>)         = 0x7efceeaa9000
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   510] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   508] <... openat resumed>)       = 4
[pid   295] <... close resumed>)        = 0
[pid   293] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   508] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 514
[pid   508] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 515
[pid   508] ioctl(4, LOOP_CLR_FD)       = 0
[pid   508] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   508] close(4)                    = 0
[pid   508] close(3 <unfinished ...>
[pid   513] <... write resumed>)        = 1048576
[pid   513] munmap(0x7efceeaa9000, 1048576) = 0
[pid   513] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   513] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   513] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 515 attached
[pid   515] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   515] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   515] setpgid(0, 0)               = 0
[pid   515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   515] write(3, "1000", 4)         = 4
[pid   508] <... close resumed>)        = 0
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   513] close(4)                    = 0
[pid   508] <... futex resumed>)        = 1
[pid   505] <... futex resumed>)        = 0
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] close(3 <unfinished ...>
[pid   508] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   515] close(3)                    = 0
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   515] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   515] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   515] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   508] <... futex resumed>)        = 1
[pid   505] <... futex resumed>)        = 0
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   508] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   515] <... clone resumed>, parent_tid=[516], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 516
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   508] <... open resumed>)         = 4
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   505] <... futex resumed>)        = 0
[pid   508] ftruncate(4, 33587195 <unfinished ...>
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   508] <... ftruncate resumed>)    = 0
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   508] <... futex resumed>)        = 1
[pid   505] <... futex resumed>)        = 0
[pid   508] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] <... close resumed>)        = 0
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   508] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   513] <... futex resumed>)        = 1
[pid   513] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] <... write resumed>)        = 1048576
[pid   508] <... futex resumed>)        = 1
[pid   505] <... futex resumed>)        = 0
[pid   513] <... open resumed>)         = 3
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] <... futex resumed>)        = 1
[pid   513] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] <... futex resumed>)        = 1
[pid   513] ftruncate(4, 33587195)      = 0
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] <... futex resumed>)        = 1
[pid   513] sendfile(3, 4, NULL, 4)     = -1 EINVAL (Invalid argument)
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] <... futex resumed>)        = 1
[pid   513] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   510] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   508] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   510] <... munmap resumed>)       = 0
./strace-static-x86_64: Process 516 attached
[pid   516] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   516] memfd_create("syzkaller", 0) = 3
[pid   516] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   510] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   510] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
./strace-static-x86_64: Process 514 attached
[pid   514] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   511] <... write resumed>)        = 1048576
[pid   510] ioctl(4, LOOP_CLR_FD)       = 0
[pid   514] <... set_robust_list resumed>) = 0
[pid   511] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   511] <... munmap resumed>)       = 0
[pid   514] setpgid(0, 0 <unfinished ...>
[pid   511] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   510] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   514] <... setpgid resumed>)      = 0
[pid   510] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   511] <... openat resumed>)       = 4
[pid   514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   511] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   510] close(4 <unfinished ...>
[pid   514] <... openat resumed>)       = 3
[pid   511] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   510] <... close resumed>)        = 0
[pid   510] close(3 <unfinished ...>
[pid   514] write(3, "1000", 4)         = 4
[pid   511] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   510] <... close resumed>)        = 0
[pid   514] close(3 <unfinished ...>
[pid   511] <... ioctl resumed>)        = 0
[pid   516] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   514] <... close resumed>)        = 0
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] <... futex resumed>)        = 1
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   514] <... futex resumed>)        = 0
[pid   510] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   511] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   514] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   511] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   510] <... open resumed>)         = 3
[pid   514] <... mprotect resumed>)     = 0
[pid   511] close(4 <unfinished ...>
[pid   514] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   511] <... close resumed>)        = 0
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] close(3 <unfinished ...>
[pid   514] <... clone resumed>, parent_tid=[517], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 517
[pid   510] <... futex resumed>)        = 1
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   507] <... futex resumed>)        = 0
[pid   514] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   516] <... write resumed>)        = 1048576
[pid   510] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   516] munmap(0x7efceeaa9000, 1048576) = 0
[pid   510] <... open resumed>)         = 4
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... close resumed>)        = 0
[pid   510] ftruncate(4, 33587195 <unfinished ...>
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   511] <... futex resumed>)        = 1
[pid   506] <... futex resumed>)        = 0
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] <... ftruncate resumed>)    = 0
[pid   506] <... futex resumed>)        = 0
[pid   511] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   510] <... futex resumed>)        = 1
[pid   507] <... futex resumed>)        = 0
[pid   516] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   511] <... open resumed>)         = 3
[pid   510] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   507] <... futex resumed>)        = 0
[pid   516] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] <... ioctl resumed>)        = 0
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
./strace-static-x86_64: Process 517 attached
[pid   511] <... futex resumed>)        = 1
[pid   506] <... futex resumed>)        = 0
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   510] <... futex resumed>)        = 1
[pid   507] <... futex resumed>)        = 0
[pid   506] <... futex resumed>)        = 0
[pid   510] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   517] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   516] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   511] <... open resumed>)         = 4
[pid   507] <... futex resumed>)        = 0
[pid   516] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] close(4 <unfinished ...>
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   517] <... set_robust_list resumed>) = 0
[pid   511] <... futex resumed>)        = 1
[pid   517] memfd_create("syzkaller", 0 <unfinished ...>
[pid   516] <... close resumed>)        = 0
[pid   511] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   506] <... futex resumed>)        = 0
[pid   516] close(3 <unfinished ...>
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   517] <... memfd_create resumed>) = 3
[pid   516] <... close resumed>)        = 0
[pid   506] <... futex resumed>)        = 0
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] ftruncate(4, 33587195 <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   517] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   516] <... futex resumed>)        = 1
[pid   515] <... futex resumed>)        = 0
[pid   516] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   517] <... mmap resumed>)         = 0x7efceeaa9000
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   515] <... futex resumed>)        = 0
[pid   516] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] <... open resumed>)         = 3
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   515] <... futex resumed>)        = 0
[pid   516] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   515] <... futex resumed>)        = 0
[pid   512] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   516] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} <unfinished ...>
[pid   516] <... open resumed>)         = 4
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   516] <... futex resumed>)        = 1
[pid   515] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} <unfinished ...>
[pid   516] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   505] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   515] <... futex resumed>)        = 0
[pid   512] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] ftruncate(4, 33587195 <unfinished ...>
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   512] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   505] <... futex resumed>)        = 0
[pid   505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   505] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   505] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[518], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 518
[pid   505] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... mmap resumed>)         = 0x7efceeb88000
[pid   505] <... futex resumed>)        = 0
[pid   512] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   511] <... ftruncate resumed>)    = 0
[pid   505] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   512] <... mprotect resumed>)     = 0
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   511] <... futex resumed>)        = 1
[pid   506] <... futex resumed>)        = 0
[pid   512] <... clone resumed>, parent_tid=[519], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 519
[pid   511] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   506] <... futex resumed>)        = 0
[pid   512] <... futex resumed>)        = 0
[pid   511] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   512] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] <... ftruncate resumed>)    = 0
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   516] <... futex resumed>)        = 1
[pid   515] <... futex resumed>)        = 0
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   515] <... futex resumed>)        = 0
[pid   511] <... futex resumed>)        = 1
[pid   506] <... futex resumed>)        = 0
[pid   516] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   511] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   511] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   506] <... futex resumed>)        = 0
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] <... futex resumed>)        = 1
[pid   515] <... futex resumed>)        = 0
[pid   516] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   516] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   515] <... futex resumed>)        = 0
[pid   516] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] <... mmap resumed>)         = 0x20000000
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   515] <... futex resumed>)        = 0
[pid   516] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 518 attached
 <unfinished ...>
[pid   517] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   515] <... futex resumed>)        = 0
[pid   511] <... mmap resumed>)         = 0x20000000
[pid   508] <... mmap resumed>)         = 0x20000000
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   518] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] <... set_robust_list resumed>) = 0
[pid   511] <... futex resumed>)        = 1
[pid   508] <... futex resumed>)        = 0
[pid   506] <... futex resumed>)        = 0
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   511] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   518] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   508] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   513] <... mmap resumed>)         = 0x20000000
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   513] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   510] <... mmap resumed>)         = 0x20000000
./strace-static-x86_64: Process 519 attached
[pid   519] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   519] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   507] <... futex resumed>)        = 0
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   517] <... write resumed>)        = 1048576
[pid   517] munmap(0x7efceeaa9000, 1048576) = 0
[pid   517] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   517] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   517] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   511] <... madvise resumed>)      = 0
[pid   518] <... madvise resumed>)      = 0
[pid   517] <... ioctl resumed>)        = 0
[pid   516] <... madvise resumed>)      = 0
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   518] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... futex resumed>)        = 1
[pid   518] <... futex resumed>)        = 1
[pid   511] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   518] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   510] <... madvise resumed>)      = 0
[pid   506] <... futex resumed>)        = 0
[pid   505] <... futex resumed>)        = 0
[pid   519] <... madvise resumed>)      = 0
[pid   516] <... futex resumed>)        = 1
[pid   515] <... futex resumed>)        = 0
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   506] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   505] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   515] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... futex resumed>)        = 0
[pid   508] <... futex resumed>)        = 0
[pid   506] <... futex resumed>)        = 1
[pid   505] <... futex resumed>)        = 1
[pid   519] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   515] <... futex resumed>)        = 0
[pid   510] <... futex resumed>)        = 1
[pid   507] <... futex resumed>)        = 0
[pid   506] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   515] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   507] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   507] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   516] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   511] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   508] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   505] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   512] <... futex resumed>)        = 0
[pid   519] <... futex resumed>)        = 1
[pid   512] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   511] <... openat resumed>)       = 5
[pid   510] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   508] <... openat resumed>)       = 5
[pid   513] <... futex resumed>)        = 0
[pid   513] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   512] <... futex resumed>)        = 1
[pid   511] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   508] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   513] <... openat resumed>)       = 5
[pid   512] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   511] <... futex resumed>)        = 1
[pid   508] <... futex resumed>)        = 1
[pid   506] <... futex resumed>)        = 0
[pid   505] <... futex resumed>)        = 0
[pid   513] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   512] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   511] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   508] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   506] exit_group(0 <unfinished ...>
[pid   505] exit_group(0 <unfinished ...>
[pid   518] <... futex resumed>)        = ?
[pid   513] <... futex resumed>)        = 0
[pid   512] exit_group(0 <unfinished ...>
[pid   511] <... futex resumed>)        = ?
[pid   508] <... futex resumed>)        = ?
[pid   506] <... exit_group resumed>)   = ?
[pid   505] <... exit_group resumed>)   = ?
[pid   518] +++ exited with 0 +++
[pid   512] <... exit_group resumed>)   = ?
[pid   511] +++ exited with 0 +++
[pid   513] +++ exited with 0 +++
[pid   517] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   517] close(4)                    = 0
[pid   516] <... openat resumed>)       = 5
[pid   510] <... openat resumed>)       = 5
[pid   508] +++ exited with 0 +++
[pid   506] +++ exited with 0 +++
[pid   505] +++ exited with 0 +++
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=505, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=506, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   299] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   510] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   507] <... futex resumed>)        = 0
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 520
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 521
[pid   510] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   507] exit_group(0 <unfinished ...>
[pid   510] <... futex resumed>)        = ?
[pid   507] <... exit_group resumed>)   = ?
[pid   516] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   515] <... futex resumed>)        = 0
[pid   515] exit_group(0)               = ?
[pid   517] close(3 <unfinished ...>
[pid   516] <... futex resumed>)        = ?
[pid   519] +++ exited with 0 +++
[pid   512] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=512, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   510] +++ exited with 0 +++
[pid   507] +++ exited with 0 +++
./strace-static-x86_64: Process 521 attached
./strace-static-x86_64: Process 520 attached
[pid   517] <... close resumed>)        = 0
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=507, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   521] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   520] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] <... set_robust_list resumed>) = 0
[pid   521] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   521] <... prctl resumed>)        = 0
[pid   521] setpgid(0, 0 <unfinished ...>
[pid   520] <... set_robust_list resumed>) = 0
[pid   517] <... futex resumed>)        = 1
[pid   516] +++ exited with 0 +++
[pid   515] +++ exited with 0 +++
[pid   514] <... futex resumed>)        = 0
[pid   520] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   517] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   521] <... setpgid resumed>)      = 0
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   514] <... futex resumed>)        = 0
[pid   520] <... prctl resumed>)        = 0
[pid   517] <... open resumed>)         = 3
[pid   300] <... openat resumed>)       = 3
[pid   520] setpgid(0, 0 <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=515, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   520] <... setpgid resumed>)      = 0
[pid   517] <... futex resumed>)        = 0
[pid   514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   300] <... ioctl resumed>)        = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   517] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   520] <... openat resumed>)       = 3
[pid   517] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
[pid   521] <... openat resumed>)       = 3
[pid   520] write(3, "1000", 4 <unfinished ...>
[pid   517] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   514] <... futex resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   521] write(3, "1000", 4 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   521] <... write resumed>)        = 4
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   521] close(3 <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 522
[pid   293] close(3 <unfinished ...>
[pid   521] <... close resumed>)        = 0
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 523
[pid   293] <... close resumed>)        = 0
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   521] <... futex resumed>)        = 0
[pid   521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 524
[pid   521] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   521] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   521] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[525], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 525
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   520] <... write resumed>)        = 4
[pid   517] <... open resumed>)         = 4
./strace-static-x86_64: Process 523 attached
[pid   523] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   523] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   520] close(3 <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] <... close resumed>)        = 0
[pid   514] <... futex resumed>)        = 0
[pid   517] <... futex resumed>)        = 1
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   517] ftruncate(4, 33587195 <unfinished ...>
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] <... futex resumed>)        = 0
[pid   517] <... ftruncate resumed>)    = 0
[pid   514] <... futex resumed>)        = 0
[pid   520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 524 attached
 <unfinished ...>
[pid   520] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   517] <... futex resumed>)        = 0
[pid   514] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   524] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   520] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   517] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   524] <... set_robust_list resumed>) = 0
[pid   520] <... mprotect resumed>)     = 0
[pid   517] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   514] <... futex resumed>)        = 0
[pid   524] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   520] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   517] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   520] <... clone resumed>, parent_tid=[526], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 526
[pid   524] <... prctl resumed>)        = 0
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 522 attached
 <unfinished ...>
[pid   524] setpgid(0, 0 <unfinished ...>
[pid   520] <... futex resumed>)        = 0
[pid   524] <... setpgid resumed>)      = 0
[pid   522] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 525 attached
 <unfinished ...>
[pid   524] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   523] <... prctl resumed>)        = 0
[pid   522] <... set_robust_list resumed>) = 0
[pid   517] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   525] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   524] <... openat resumed>)       = 3
[pid   523] setpgid(0, 0 <unfinished ...>
[pid   522] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... set_robust_list resumed>) = 0
[pid   524] write(3, "1000", 4 <unfinished ...>
[pid   523] <... setpgid resumed>)      = 0
[pid   522] <... prctl resumed>)        = 0
[pid   517] <... futex resumed>)        = 1
[pid   514] <... futex resumed>)        = 0
[pid   525] memfd_create("syzkaller", 0 <unfinished ...>
[pid   524] <... write resumed>)        = 4
[pid   523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   522] setpgid(0, 0 <unfinished ...>
[pid   517] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... memfd_create resumed>) = 3
[pid   524] close(3 <unfinished ...>
[pid   523] <... openat resumed>)       = 3
[pid   522] <... setpgid resumed>)      = 0
[pid   517] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   514] <... futex resumed>)        = 0
./strace-static-x86_64: Process 526 attached
[pid   525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   524] <... close resumed>)        = 0
[pid   523] write(3, "1000", 4 <unfinished ...>
[pid   522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   517] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   526] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   525] <... mmap resumed>)         = 0x7efceeaa9000
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   523] <... write resumed>)        = 4
[pid   525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   523] close(3)                    = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   523] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   523] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[527], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 527
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 527 attached
 <unfinished ...>
[pid   527] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   527] memfd_create("syzkaller", 0 <unfinished ...>
[pid   524] <... futex resumed>)        = 0
[pid   526] <... set_robust_list resumed>) = 0
[pid   524] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   522] <... openat resumed>)       = 3
[pid   526] memfd_create("syzkaller", 0 <unfinished ...>
[pid   524] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   522] write(3, "1000", 4 <unfinished ...>
[pid   527] <... memfd_create resumed>) = 3
[pid   527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   526] <... memfd_create resumed>) = 3
[pid   524] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   522] <... write resumed>)        = 4
[pid   524] <... mprotect resumed>)     = 0
[pid   522] close(3 <unfinished ...>
[pid   526] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   524] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   522] <... close resumed>)        = 0
[pid   526] <... mmap resumed>)         = 0x7efceeaa9000
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   524] <... clone resumed>, parent_tid=[528], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 528
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] <... futex resumed>)        = 0
[pid   524] <... futex resumed>)        = 0
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   522] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   522] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[529], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 529
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   525] <... write resumed>)        = 1048576
[pid   526] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   525] munmap(0x7efceeaa9000, 1048576) = 0
[pid   525] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
./strace-static-x86_64: Process 528 attached
[pid   525] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   525] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 529 attached
 <unfinished ...>
[pid   527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   525] <... ioctl resumed>)        = 0
[pid   529] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   529] memfd_create("syzkaller", 0 <unfinished ...>
[pid   528] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   526] <... write resumed>)        = 1048576
[pid   528] <... set_robust_list resumed>) = 0
[pid   529] <... memfd_create resumed>) = 3
[pid   528] memfd_create("syzkaller", 0 <unfinished ...>
[pid   526] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   529] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   528] <... memfd_create resumed>) = 3
[pid   526] <... munmap resumed>)       = 0
[pid   529] <... mmap resumed>)         = 0x7efceeaa9000
[pid   528] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   527] <... write resumed>)        = 1048576
[pid   526] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   529] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   528] <... mmap resumed>)         = 0x7efceeaa9000
[pid   526] <... openat resumed>)       = 4
[pid   525] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   527] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   525] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   517] <... mmap resumed>)         = 0x20000000
[pid   525] close(4)                    = 0
[pid   525] close(3)                    = 0
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] <... futex resumed>)        = 0
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... futex resumed>)        = 1
[pid   521] <... futex resumed>)        = 0
[pid   525] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   525] <... open resumed>)         = 3
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   521] <... futex resumed>)        = 0
[pid   525] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   526] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   525] <... open resumed>)         = 4
[pid   521] <... futex resumed>)        = 0
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   521] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   525] ftruncate(4, 33587195 <unfinished ...>
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... ftruncate resumed>)    = 0
[pid   521] <... futex resumed>)        = 0
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   521] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   525] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   521] <... futex resumed>)        = 0
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   525] <... futex resumed>)        = 0
[pid   521] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   525] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   525] <... mmap resumed>)         = 0x20000000
[pid   521] <... futex resumed>)        = 0
[pid   526] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] <... ioctl resumed>)        = 0
[pid   514] <... futex resumed>)        = 0
[pid   517] <... futex resumed>)        = 1
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] <... write resumed>)        = 1048576
[pid   527] <... munmap resumed>)       = 0
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   517] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   514] <... futex resumed>)        = 0
[pid   529] <... write resumed>)        = 1048576
[pid   528] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   527] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   525] <... futex resumed>)        = 1
[pid   521] <... futex resumed>)        = 0
[pid   529] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] <... munmap resumed>)       = 0
[pid   521] <... futex resumed>)        = 0
[pid   529] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   529] <... openat resumed>)       = 4
[pid   529] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   529] ioctl(4, LOOP_CLR_FD)       = 0
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   528] <... munmap resumed>)       = 0
[pid   528] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   528] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   529] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   528] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   529] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   528] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   529] close(4 <unfinished ...>
[pid   528] <... ioctl resumed>)        = 0
[pid   529] <... close resumed>)        = 0
[pid   529] close(3)                    = 0
[pid   528] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   528] close(4)                    = 0
[pid   528] close(3)                    = 0
[pid   527] <... openat resumed>)       = 4
[pid   526] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   526] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   529] <... futex resumed>)        = 1
[pid   528] <... futex resumed>)        = 1
[pid   527] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   526] close(4 <unfinished ...>
[pid   525] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   524] <... futex resumed>)        = 0
[pid   522] <... futex resumed>)        = 0
[pid   529] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   527] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   526] <... close resumed>)        = 0
[pid   525] <... madvise resumed>)      = 0
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   517] <... madvise resumed>)      = 0
[pid   528] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   527] <... ioctl resumed>)        = 0
[pid   526] close(3 <unfinished ...>
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   524] <... futex resumed>)        = 0
[pid   522] <... futex resumed>)        = 0
[pid   529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   528] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   528] <... open resumed>)         = 3
[pid   529] <... open resumed>)         = 3
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] <... close resumed>)        = 0
[pid   525] <... futex resumed>)        = 1
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   521] <... futex resumed>)        = 0
[pid   517] <... futex resumed>)        = 1
[pid   514] <... futex resumed>)        = 0
[pid   528] <... futex resumed>)        = 0
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   524] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   521] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   514] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   526] <... futex resumed>)        = 1
[pid   525] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = 0
[pid   517] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   514] <... futex resumed>)        = 0
[pid   528] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   527] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   526] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   525] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   524] <... futex resumed>)        = 0
[pid   521] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   514] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   528] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   527] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   526] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   525] <... openat resumed>)       = 5
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   520] <... futex resumed>)        = 0
[pid   517] <... openat resumed>)       = 5
[pid   528] <... open resumed>)         = 4
[pid   527] close(4 <unfinished ...>
[pid   526] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   525] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   529] <... futex resumed>)        = 1
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... close resumed>)        = 0
[pid   526] <... open resumed>)         = 3
[pid   525] <... futex resumed>)        = 1
[pid   522] <... futex resumed>)        = 0
[pid   521] <... futex resumed>)        = 0
[pid   517] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   528] <... futex resumed>)        = 1
[pid   527] close(3 <unfinished ...>
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   525] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   524] <... futex resumed>)        = 0
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   521] exit_group(0 <unfinished ...>
[pid   529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   522] <... futex resumed>)        = 0
[pid   521] <... exit_group resumed>)   = ?
[pid   529] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   529] <... open resumed>)         = 4
[pid   526] <... futex resumed>)        = 1
[pid   525] <... futex resumed>)        = ?
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] <... futex resumed>)        = 0
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   528] <... futex resumed>)        = 0
[pid   527] <... close resumed>)        = 0
[pid   524] <... futex resumed>)        = 1
[pid   522] <... futex resumed>)        = 0
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   528] ftruncate(4, 33587195 <unfinished ...>
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   528] <... ftruncate resumed>)    = 0
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   525] +++ exited with 0 +++
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   522] <... futex resumed>)        = 0
[pid   521] +++ exited with 0 +++
[pid   520] <... futex resumed>)        = 0
[pid   517] <... futex resumed>)        = 1
[pid   514] <... futex resumed>)        = 0
[pid   529] ftruncate(4, 33587195 <unfinished ...>
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=521, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   529] <... ftruncate resumed>)    = 0
[pid   528] <... futex resumed>)        = 0
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   529] <... futex resumed>)        = 1
[pid   522] <... futex resumed>)        = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   529] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   522] <... futex resumed>)        = 0
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   529] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 530
[pid   529] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   524] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   526] <... open resumed>)         = 4
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   514] exit_group(0 <unfinished ...>
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   523] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   514] <... exit_group resumed>)   = ?
[pid   529] <... futex resumed>)        = 1
[pid   528] <... futex resumed>)        = 0
[pid   527] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   526] <... futex resumed>)        = 0
[pid   524] <... futex resumed>)        = 1
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] <... futex resumed>)        = 0
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   528] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   527] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   526] ftruncate(4, 33587195 <unfinished ...>
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   523] <... futex resumed>)        = 0
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] <... futex resumed>)        = 0
[pid   529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   528] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   527] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   526] <... ftruncate resumed>)    = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   522] <... futex resumed>)        = 0
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   529] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... open resumed>)         = 3
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   517] +++ exited with 0 +++
[pid   514] +++ exited with 0 +++
./strace-static-x86_64: Process 530 attached
[pid   528] <... futex resumed>)        = 1
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] <... futex resumed>)        = 0
[pid   524] <... futex resumed>)        = 0
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   526] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   523] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = 0
[pid   530] <... set_robust_list resumed>) = 0
[pid   528] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   527] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   526] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   524] <... futex resumed>)        = 0
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=514, si_uid=0, si_status=0, si_utime=0, si_stime=5} ---
[pid   530] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   528] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   527] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   523] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   530] <... prctl resumed>)        = 0
[pid   527] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   526] <... futex resumed>)        = 0
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] setpgid(0, 0 <unfinished ...>
[pid   527] <... open resumed>)         = 4
[pid   526] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   520] <... futex resumed>)        = 0
[pid   530] <... setpgid resumed>)      = 0
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] <... restart_syscall resumed>) = 0
[pid   530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   527] <... futex resumed>)        = 0
[pid   523] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   530] <... openat resumed>)       = 3
[pid   527] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] write(3, "1000", 4 <unfinished ...>
[pid   527] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   523] <... futex resumed>)        = 0
[pid   530] <... write resumed>)        = 4
[pid   527] ftruncate(4, 33587195 <unfinished ...>
[pid   530] close(3 <unfinished ...>
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   530] <... close resumed>)        = 0
[pid   295] <... openat resumed>)       = 3
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... ftruncate resumed>)    = 0
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   530] <... futex resumed>)        = 0
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   530] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   527] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   530] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   530] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[531], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 531
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 531 attached
 <unfinished ...>
[pid   523] <... futex resumed>)        = 0
[pid   295] <... ioctl resumed>)        = 0
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   531] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   531] memfd_create("syzkaller", 0) = 3
[pid   531] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   295] close(3 <unfinished ...>
[pid   523] <... futex resumed>)        = 1
[pid   295] <... close resumed>)        = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   527] <... futex resumed>)        = 0
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 532
[pid   527] sendfile(3, 4, NULL, 4)     = -1 EINVAL (Invalid argument)
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   523] <... futex resumed>)        = 0
[pid   527] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 532 attached
 <unfinished ...>
[pid   532] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   532] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   527] <... mmap resumed>)         = 0x20000000
[pid   532] <... prctl resumed>)        = 0
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] setpgid(0, 0 <unfinished ...>
[pid   523] <... futex resumed>)        = 0
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   527] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   526] <... mmap resumed>)         = 0x20000000
[pid   532] <... setpgid resumed>)      = 0
[pid   532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   531] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   532] <... openat resumed>)       = 3
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] write(3, "1000", 4 <unfinished ...>
[pid   526] <... futex resumed>)        = 1
[pid   520] <... futex resumed>)        = 0
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   532] <... write resumed>)        = 4
[pid   526] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   532] close(3)                    = 0
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   532] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   529] <... mmap resumed>)         = 0x20000000
[pid   532] <... mprotect resumed>)     = 0
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] <... mmap resumed>)         = 0x20000000
[pid   532] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[533], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 533
[pid   529] <... futex resumed>)        = 1
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] <... futex resumed>)        = 0
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   528] <... futex resumed>)        = 1
[pid   524] <... futex resumed>)        = 0
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   524] <... futex resumed>)        = 0
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   528] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   529] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   531] <... write resumed>)        = 1048576
[pid   531] munmap(0x7efceeaa9000, 1048576) = 0
[pid   531] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   531] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   531] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 533 attached
[pid   533] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   533] memfd_create("syzkaller", 0) = 3
[pid   533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   531] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   531] close(4 <unfinished ...>
[pid   529] <... madvise resumed>)      = 0
[pid   528] <... madvise resumed>)      = 0
[pid   527] <... madvise resumed>)      = 0
[pid   526] <... madvise resumed>)      = 0
[pid   533] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   531] <... close resumed>)        = 0
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] <... futex resumed>)        = 1
[pid   528] <... futex resumed>)        = 1
[pid   527] <... futex resumed>)        = 1
[pid   526] <... futex resumed>)        = 1
[pid   524] <... futex resumed>)        = 0
[pid   523] <... futex resumed>)        = 0
[pid   522] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = 0
[pid   529] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   527] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   526] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   524] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   523] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   522] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   520] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] <... write resumed>)        = 1048576
[pid   531] close(3 <unfinished ...>
[pid   529] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   528] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   527] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   526] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   524] <... futex resumed>)        = 0
[pid   523] <... futex resumed>)        = 0
[pid   522] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = 0
[pid   523] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   520] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   529] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   528] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   527] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   526] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   524] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   522] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] <... munmap resumed>)       = 0
[pid   531] <... close resumed>)        = 0
[pid   529] <... openat resumed>)       = 5
[pid   528] <... openat resumed>)       = 5
[pid   527] <... openat resumed>)       = 5
[pid   526] <... openat resumed>)       = 5
[pid   529] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   526] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] <... futex resumed>)        = 1
[pid   526] <... futex resumed>)        = 1
[pid   524] <... futex resumed>)        = 0
[pid   520] <... futex resumed>)        = 0
[pid   529] <... futex resumed>)        = 1
[pid   522] <... futex resumed>)        = 0
[pid   527] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   528] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   526] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   524] exit_group(0 <unfinished ...>
[pid   520] exit_group(0 <unfinished ...>
[pid   522] exit_group(0 <unfinished ...>
[pid   529] ????( <unfinished ...>
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   527] <... futex resumed>)        = 1
[pid   526] <... futex resumed>)        = 1
[pid   524] <... exit_group resumed>)   = ?
[pid   529] <... ???? resumed>)         = ?
[pid   528] <... futex resumed>)        = ?
[pid   526] +++ exited with 0 +++
[pid   523] <... futex resumed>)        = 0
[pid   522] <... exit_group resumed>)   = ?
[pid   520] <... exit_group resumed>)   = ?
[pid   533] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   531] <... futex resumed>)        = 1
[pid   530] <... futex resumed>)        = 0
[pid   523] exit_group(0 <unfinished ...>
[pid   533] <... openat resumed>)       = 4
[pid   531] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   523] <... exit_group resumed>)   = ?
[pid   533] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   531] <... open resumed>)         = 3
[pid   530] <... futex resumed>)        = 0
[pid   533] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   531] <... futex resumed>)        = 0
[pid   530] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   533] <... ioctl resumed>)        = 0
[pid   531] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   531] <... open resumed>)         = 4
[pid   530] <... futex resumed>)        = 0
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   531] <... futex resumed>)        = 0
[pid   530] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   531] ftruncate(4, 33587195 <unfinished ...>
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   531] <... ftruncate resumed>)    = 0
[pid   530] <... futex resumed>)        = 0
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   531] <... futex resumed>)        = 0
[pid   530] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   531] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   528] +++ exited with 0 +++
[pid   524] +++ exited with 0 +++
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   531] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   533] close(4 <unfinished ...>
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   529] +++ exited with 0 +++
[pid   522] +++ exited with 0 +++
[pid   520] +++ exited with 0 +++
[pid   527] +++ exited with 0 +++
[pid   523] +++ exited with 0 +++
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=520, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=524, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=522, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=523, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   293] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] close(3 <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
[pid   293] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 534
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 535
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 536
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 537
./strace-static-x86_64: Process 534 attached
[pid   534] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   534] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 537 attached
) = 0
[pid   537] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   534] setpgid(0, 0)               = 0
[pid   534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   537] <... set_robust_list resumed>) = 0
[pid   537] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   534] <... openat resumed>)       = 3
[pid   537] <... prctl resumed>)        = 0
[pid   537] setpgid(0, 0)               = 0
[pid   537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   534] write(3, "1000", 4)         = 4
[pid   534] close(3)                    = 0
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   537] <... openat resumed>)       = 3
[pid   534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   534] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   534] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   537] write(3, "1000", 4)         = 4
[pid   537] close(3)                    = 0
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   537] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   537] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   534] <... clone resumed>, parent_tid=[538], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 538
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 535 attached
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   535] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   537] <... clone resumed>, parent_tid=[539], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 539
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] <... set_robust_list resumed>) = 0
[pid   537] <... futex resumed>)        = 0
[pid   535] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   535] <... prctl resumed>)        = 0
[pid   535] setpgid(0, 0)               = 0
[pid   535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   535] write(3, "1000", 4)         = 4
[pid   535] close(3)                    = 0
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   535] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   535] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[540], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 540
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 538 attached
 <unfinished ...>
[pid   538] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   538] memfd_create("syzkaller", 0) = 3
[pid   538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 540 attached
[pid   540] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   540] memfd_create("syzkaller", 0) = 3
[pid   540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   533] <... close resumed>)        = 0
[pid   530] <... futex resumed>)        = 0
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 539 attached
./strace-static-x86_64: Process 536 attached
 <unfinished ...>
[pid   533] close(3 <unfinished ...>
[pid   531] <... futex resumed>)        = 1
[pid   539] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   533] <... close resumed>)        = 0
[pid   531] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   538] <... write resumed>)        = 1048576
[pid   538] munmap(0x7efceeaa9000, 1048576) = 0
[pid   538] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   538] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   538] ioctl(4, LOOP_CLR_FD)       = 0
[pid   539] <... set_robust_list resumed>) = 0
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   532] <... futex resumed>)        = 0
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   538] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   538] close(4 <unfinished ...>
[pid   533] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   539] memfd_create("syzkaller", 0 <unfinished ...>
[pid   536] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... set_robust_list resumed>) = 0
[pid   539] <... memfd_create resumed>) = 3
[pid   539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   536] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   533] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 0
[pid   539] <... mmap resumed>)         = 0x7efceeaa9000
[pid   538] <... close resumed>)        = 0
[pid   536] <... prctl resumed>)        = 0
[pid   533] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] close(3 <unfinished ...>
[pid   532] <... futex resumed>)        = 0
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] <... open resumed>)         = 4
[pid   536] setpgid(0, 0 <unfinished ...>
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... write resumed>)        = 1048576
[pid   540] munmap(0x7efceeaa9000, 1048576) = 0
[pid   540] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   540] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   540] ioctl(4, LOOP_CLR_FD)       = 0
[pid   536] <... setpgid resumed>)      = 0
[pid   533] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 0
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] ftruncate(4, 33587195 <unfinished ...>
[pid   532] <... futex resumed>)        = 0
[pid   536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   536] <... openat resumed>)       = 3
[pid   540] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   540] close(4)                    = 0
[pid   540] close(3 <unfinished ...>
[pid   536] write(3, "1000", 4 <unfinished ...>
[pid   533] <... ftruncate resumed>)    = 0
[pid   536] <... write resumed>)        = 4
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] <... futex resumed>)        = 0
[pid   533] <... futex resumed>)        = 1
[pid   536] close(3 <unfinished ...>
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] <... close resumed>)        = 0
[pid   533] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   538] <... close resumed>)        = 0
[pid   536] <... futex resumed>)        = 0
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   533] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 0
[pid   538] <... futex resumed>)        = 1
[pid   536] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   534] <... futex resumed>)        = 0
[pid   533] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   536] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   534] <... futex resumed>)        = 0
[pid   538] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   538] <... open resumed>)         = 3
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   536] <... mprotect resumed>)     = 0
[pid   534] <... futex resumed>)        = 0
[pid   532] <... futex resumed>)        = 0
[pid   538] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   536] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   540] <... close resumed>)        = 0
[pid   538] <... open resumed>)         = 4
[pid   534] <... futex resumed>)        = 0
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... clone resumed>, parent_tid=[541], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 541
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   538] <... futex resumed>)        = 0
[pid   535] <... futex resumed>)        = 0
[pid   534] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   540] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... open resumed>)         = 3
[pid   538] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] <... futex resumed>)        = 0
[pid   534] <... futex resumed>)        = 0
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   538] ftruncate(4, 33587195 <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... futex resumed>)        = 0
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   535] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   540] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... open resumed>)         = 4
[pid   535] <... futex resumed>)        = 0
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... futex resumed>)        = 0
[pid   535] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   540] ftruncate(4, 33587195 <unfinished ...>
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   538] <... ftruncate resumed>)    = 0
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   534] <... futex resumed>)        = 0
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... ftruncate resumed>)    = 0
[pid   538] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   534] <... futex resumed>)        = 0
./strace-static-x86_64: Process 541 attached
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   541] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   538] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   535] <... futex resumed>)        = 0
[pid   539] <... write resumed>)        = 1048576
[pid   540] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   538] <... futex resumed>)        = 1
[pid   535] <... futex resumed>)        = 0
[pid   534] <... futex resumed>)        = 0
[pid   541] <... set_robust_list resumed>) = 0
[pid   540] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   539] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   538] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   534] <... futex resumed>)        = 0
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   541] memfd_create("syzkaller", 0 <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   539] <... munmap resumed>)       = 0
[pid   538] <... mmap resumed>)         = 0x20000000
[pid   535] <... futex resumed>)        = 0
[pid   531] <... mmap resumed>)         = 0x20000000
[pid   530] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   541] <... memfd_create resumed>) = 3
[pid   540] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   539] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   539] <... openat resumed>)       = 4
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] <... futex resumed>)        = 0
[pid   533] <... mmap resumed>)         = 0x20000000
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] <... futex resumed>)        = 0
[pid   541] <... mmap resumed>)         = 0x7efceeaa9000
[pid   540] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   539] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   538] <... futex resumed>)        = 1
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   534] <... futex resumed>)        = 0
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   531] <... futex resumed>)        = 0
[pid   530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   541] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   539] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 0
[pid   531] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   530] <... mmap resumed>)         = 0x7efceeb88000
[pid   540] <... mmap resumed>)         = 0x20000000
[pid   539] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   534] <... futex resumed>)        = 0
[pid   533] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] <... ioctl resumed>)        = 0
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   532] <... futex resumed>)        = 0
[pid   540] <... futex resumed>)        = 1
[pid   535] <... futex resumed>)        = 0
[pid   540] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   541] <... write resumed>)        = 1048576
[pid   541] munmap(0x7efceeaa9000, 1048576) = 0
[pid   541] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   541] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   541] ioctl(4, LOOP_CLR_FD)       = 0
[pid   538] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   538] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   530] <... mprotect resumed>)     = 0
[pid   541] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   530] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   541] close(4)                    = 0
[pid   541] close(3)                    = 0
[pid   539] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   530] <... clone resumed>, parent_tid=[542], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 542
[pid   539] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   530] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
./strace-static-x86_64: Process 542 attached
[pid   539] close(4 <unfinished ...>
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   530] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   542] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   541] <... futex resumed>)        = 1
[pid   539] <... close resumed>)        = 0
[pid   536] <... futex resumed>)        = 0
[pid   541] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   542] <... set_robust_list resumed>) = 0
[pid   541] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   539] close(3 <unfinished ...>
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   541] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   539] <... close resumed>)        = 0
[pid   536] <... futex resumed>)        = 1
[pid   541] <... futex resumed>)        = 0
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   541] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   542] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   539] <... futex resumed>)        = 1
[pid   537] <... futex resumed>)        = 0
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] <... futex resumed>)        = 0
[pid   539] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   537] <... futex resumed>)        = 0
[pid   536] <... futex resumed>)        = 1
[pid   541] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   541] <... open resumed>)         = 4
[pid   539] <... open resumed>)         = 3
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   533] <... madvise resumed>)      = 0
[pid   542] <... madvise resumed>)      = 0
[pid   541] <... futex resumed>)        = 0
[pid   540] <... madvise resumed>)      = 0
[pid   539] <... futex resumed>)        = 1
[pid   538] <... madvise resumed>)      = 0
[pid   537] <... futex resumed>)        = 0
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   542] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] ftruncate(4, 33587195 <unfinished ...>
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   542] <... futex resumed>)        = 1
[pid   541] <... ftruncate resumed>)    = 0
[pid   540] <... futex resumed>)        = 1
[pid   539] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   535] <... futex resumed>)        = 0
[pid   530] <... futex resumed>)        = 0
[pid   542] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   539] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   538] <... futex resumed>)        = 1
[pid   537] <... futex resumed>)        = 0
[pid   536] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   535] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   534] <... futex resumed>)        = 0
[pid   533] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 0
[pid   530] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] <... futex resumed>)        = 0
[pid   540] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   539] <... open resumed>)         = 4
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] <... futex resumed>)        = 0
[pid   534] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   533] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   532] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   531] <... futex resumed>)        = 0
[pid   530] <... futex resumed>)        = 1
[pid   541] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   540] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   538] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   537] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   536] <... futex resumed>)        = 0
[pid   535] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   534] <... futex resumed>)        = 0
[pid   532] <... futex resumed>)        = 0
[pid   531] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   530] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   540] <... openat resumed>)       = 5
[pid   539] <... futex resumed>)        = 0
[pid   538] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   534] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   533] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   532] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   531] <... openat resumed>)       = 5
[pid   541] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   540] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] ftruncate(4, 33587195 <unfinished ...>
[pid   538] <... openat resumed>)       = 5
[pid   537] <... futex resumed>)        = 0
[pid   531] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   540] <... futex resumed>)        = 1
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   539] <... ftruncate resumed>)    = 0
[pid   535] <... futex resumed>)        = 0
[pid   538] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] <... futex resumed>)        = 1
[pid   540] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   538] <... futex resumed>)        = 1
[pid   535] exit_group(0 <unfinished ...>
[pid   534] <... futex resumed>)        = 0
[pid   533] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   531] <... futex resumed>)        = 1
[pid   530] <... futex resumed>)        = 0
[pid   541] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   540] <... futex resumed>)        = ?
[pid   539] <... futex resumed>)        = 1
[pid   538] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   537] <... futex resumed>)        = 0
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   535] <... exit_group resumed>)   = ?
[pid   534] exit_group(0 <unfinished ...>
[pid   533] <... openat resumed>)       = 5
[pid   531] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   530] exit_group(0 <unfinished ...>
[pid   542] <... futex resumed>)        = ?
[pid   541] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   540] +++ exited with 0 +++
[pid   539] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   538] <... futex resumed>)        = ?
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   535] +++ exited with 0 +++
[pid   534] <... exit_group resumed>)   = ?
[pid   533] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   531] <... futex resumed>)        = ?
[pid   530] <... exit_group resumed>)   = ?
[pid   542] +++ exited with 0 +++
[pid   541] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   539] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   538] +++ exited with 0 +++
[pid   537] <... futex resumed>)        = 0
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   534] +++ exited with 0 +++
[pid   531] +++ exited with 0 +++
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=535, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=534, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... openat resumed>)       = 3
[pid   301] close(3 <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   530] +++ exited with 0 +++
[pid   301] <... close resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=530, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   539] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   533] <... futex resumed>)        = 1
[pid   532] <... futex resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 543
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   533] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   532] exit_group(0 <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   533] <... futex resumed>)        = ?
[pid   532] <... exit_group resumed>)   = ?
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 544
[pid   299] <... openat resumed>)       = 3
[pid   533] +++ exited with 0 +++
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3./strace-static-x86_64: Process 544 attached
 <unfinished ...>
[pid   539] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   532] +++ exited with 0 +++
[pid   299] <... close resumed>)        = 0
[pid   544] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   544] <... set_robust_list resumed>) = 0
[pid   539] <... futex resumed>)        = 1
[pid   537] <... futex resumed>)        = 0
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=532, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 545
[pid   544] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   539] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] <... mmap resumed>)         = 0x20000000
./strace-static-x86_64: Process 545 attached
[pid   544] <... prctl resumed>)        = 0
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   537] <... futex resumed>)        = 0
./strace-static-x86_64: Process 543 attached
[pid   544] setpgid(0, 0 <unfinished ...>
[pid   539] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   543] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   543] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   543] setpgid(0, 0)               = 0
[pid   543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   543] write(3, "1000", 4)         = 4
[pid   543] close(3)                    = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   543] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   543] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   543] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[546], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 546
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 546 attached
 <unfinished ...>
[pid   546] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   546] memfd_create("syzkaller", 0) = 3
[pid   544] <... setpgid resumed>)      = 0
[pid   295] <... openat resumed>)       = 3
[pid   544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3 <unfinished ...>
[pid   544] <... openat resumed>)       = 3
[pid   546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   545] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   544] write(3, "1000", 4 <unfinished ...>
[pid   541] <... futex resumed>)        = 1
[pid   539] <... mmap resumed>)         = 0x20000000
[pid   536] <... futex resumed>)        = 0
[pid   295] <... close resumed>)        = 0
[pid   544] <... write resumed>)        = 4
[pid   536] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   544] close(3 <unfinished ...>
[pid   541] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   545] <... set_robust_list resumed>) = 0
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   544] <... close resumed>)        = 0
[pid   536] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 547
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   544] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   544] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[548], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 548
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 547 attached
 <unfinished ...>
[pid   547] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   547] setpgid(0, 0)               = 0
[pid   545] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   545] <... prctl resumed>)        = 0
[pid   545] setpgid(0, 0)               = 0
[pid   547] <... openat resumed>)       = 3
[pid   547] write(3, "1000", 4)         = 4
[pid   547] close(3)                    = 0
[pid   545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   545] <... openat resumed>)       = 3
[pid   547] <... futex resumed>)        = 0
[pid   547] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   545] write(3, "1000", 4 <unfinished ...>
[pid   547] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   547] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   545] <... write resumed>)        = 4
[pid   545] close(3)                    = 0
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   539] <... futex resumed>)        = 1
[pid   537] <... futex resumed>)        = 0
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   545] <... futex resumed>)        = 0
[pid   539] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   547] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   545] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   545] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   545] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   547] <... clone resumed>, parent_tid=[549], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 549
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   545] <... clone resumed>, parent_tid=[550], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 550
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 548 attached
 <unfinished ...>
[pid   548] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   548] memfd_create("syzkaller", 0) = 3
[pid   548] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 550 attached
[pid   550] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   550] memfd_create("syzkaller", 0) = 3
[pid   550] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   546] <... write resumed>)        = 1048576
./strace-static-x86_64: Process 549 attached
[pid   549] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   549] memfd_create("syzkaller", 0) = 3
[pid   549] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   546] munmap(0x7efceeaa9000, 1048576) = 0
[pid   546] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   546] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   546] ioctl(4, LOOP_CLR_FD)       = 0
[pid   546] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   546] close(4 <unfinished ...>
[pid   549] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   548] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   546] <... close resumed>)        = 0
[pid   546] close(3)                    = 0
[pid   550] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   543] <... futex resumed>)        = 0
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   546] <... futex resumed>)        = 1
[pid   546] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   543] <... futex resumed>)        = 0
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   546] <... futex resumed>)        = 1
[pid   546] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   543] <... futex resumed>)        = 0
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   546] <... futex resumed>)        = 1
[pid   546] ftruncate(4, 33587195 <unfinished ...>
[pid   539] <... madvise resumed>)      = 0
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   537] <... futex resumed>)        = 0
[pid   537] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   546] <... ftruncate resumed>)    = 0
[pid   537] <... futex resumed>)        = 0
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   543] <... futex resumed>)        = 0
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   546] <... futex resumed>)        = 1
[pid   546] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   539] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   537] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   548] <... write resumed>)        = 1048576
[pid   539] <... openat resumed>)       = 5
[pid   539] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   539] <... futex resumed>)        = 1
[pid   537] <... futex resumed>)        = 0
[pid   539] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   537] exit_group(0)               = ?
[pid   539] <... futex resumed>)        = -1 (errno 18446744073709551555)
[pid   548] <... munmap resumed>)       = 0
[pid   539] +++ exited with 0 +++
[pid   537] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=537, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   548] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   293] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   548] <... openat resumed>)       = 4
[pid   546] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   541] <... madvise resumed>)      = 0
[pid   293] <... restart_syscall resumed>) = 0
[pid   550] <... write resumed>)        = 1048576
[pid   549] <... write resumed>)        = 1048576
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   550] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   549] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   548] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   546] <... futex resumed>)        = 1
[pid   543] <... futex resumed>)        = 0
[pid   541] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... munmap resumed>)       = 0
[pid   549] <... munmap resumed>)       = 0
[pid   548] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   546] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   541] <... futex resumed>)        = 0
[pid   536] <... futex resumed>)        = 0
[pid   546] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   543] <... futex resumed>)        = 0
[pid   536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   550] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   549] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   548] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   541] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   546] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   536] <... mmap resumed>)         = 0x7efceeb88000
[pid   293] <... openat resumed>)       = 3
[pid   550] <... openat resumed>)       = 4
[pid   549] <... openat resumed>)       = 4
[pid   548] <... ioctl resumed>)        = 0
[pid   536] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   536] <... mprotect resumed>)     = 0
[pid   293] <... ioctl resumed>)        = 0
[pid   536] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   536] <... clone resumed>, parent_tid=[551], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 551
[pid   293] <... close resumed>)        = 0
[pid   536] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   536] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   550] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   549] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   548] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   550] <... ioctl resumed>)        = 0
[pid   549] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   548] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   549] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   548] close(4 <unfinished ...>
[pid   549] <... ioctl resumed>)        = 0
[pid   548] <... close resumed>)        = 0
[pid   548] close(3)                    = 0
[pid   550] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   548] <... futex resumed>)        = 1
[pid   544] <... futex resumed>)        = 0
[pid   550] close(4 <unfinished ...>
[pid   548] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... close resumed>)        = 0
[pid   548] <... open resumed>)         = 3
[pid   544] <... futex resumed>)        = 0
[pid   550] close(3 <unfinished ...>
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] <... close resumed>)        = 0
[pid   549] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   548] <... futex resumed>)        = 0
[pid   544] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   548] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   549] close(4 <unfinished ...>
[pid   548] <... open resumed>)         = 4
[pid   544] <... futex resumed>)        = 0
[pid   549] <... close resumed>)        = 0
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   549] close(3 <unfinished ...>
[pid   548] <... futex resumed>)        = 0
[pid   544] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... close resumed>)        = 0
[pid   548] ftruncate(4, 33587195 <unfinished ...>
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 552
[pid   544] <... futex resumed>)        = 0
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] <... futex resumed>)        = 1
[pid   545] <... futex resumed>)        = 0
[pid   550] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] <... ftruncate resumed>)    = 0
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... open resumed>)         = 3
[pid   549] <... futex resumed>)        = 1
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   547] <... futex resumed>)        = 0
[pid   545] <... futex resumed>)        = 0
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   548] <... futex resumed>)        = 1
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   544] <... futex resumed>)        = 0
[pid   550] <... futex resumed>)        = 0
[pid   549] <... open resumed>)         = 3
[pid   548] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   547] <... futex resumed>)        = 0
[pid   545] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   544] <... futex resumed>)        = 0
[pid   550] <... open resumed>)         = 4
[pid   549] <... futex resumed>)        = 0
[pid   548] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   547] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   545] <... futex resumed>)        = 0
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   548] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   550] <... futex resumed>)        = 0
[pid   549] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   547] <... futex resumed>)        = 0
[pid   545] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   550] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   548] <... futex resumed>)        = 1
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   544] <... futex resumed>)        = 0
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... open resumed>)         = 4
[pid   548] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   545] <... futex resumed>)        = 0
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] ftruncate(4, 33587195 <unfinished ...>
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   544] <... futex resumed>)        = 0
[pid   550] <... ftruncate resumed>)    = 0
[pid   549] <... futex resumed>)        = 1
[pid   548] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   547] <... futex resumed>)        = 0
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 552 attached
 <unfinished ...>
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   547] <... futex resumed>)        = 0
[pid   545] <... futex resumed>)        = 0
./strace-static-x86_64: Process 551 attached
[pid   552] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   550] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] ftruncate(4, 33587195 <unfinished ...>
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   552] <... set_robust_list resumed>) = 0
[pid   551] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   545] <... futex resumed>)        = 0
[pid   552] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   551] <... set_robust_list resumed>) = 0
[pid   550] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   552] <... prctl resumed>)        = 0
[pid   552] setpgid(0, 0 <unfinished ...>
[pid   550] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   549] <... ftruncate resumed>)    = 0
[pid   552] <... setpgid resumed>)      = 0
[pid   551] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = 1
[pid   547] <... futex resumed>)        = 0
[pid   545] <... futex resumed>)        = 0
[pid   552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   551] <... openat resumed>)       = 5
[pid   550] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   552] <... openat resumed>)       = 3
[pid   551] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   549] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   547] <... futex resumed>)        = 0
[pid   545] <... futex resumed>)        = 0
[pid   552] write(3, "1000", 4 <unfinished ...>
[pid   551] <... futex resumed>)        = 1
[pid   550] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   549] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   536] <... futex resumed>)        = 0
[pid   552] <... write resumed>)        = 4
[pid   551] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   536] exit_group(0 <unfinished ...>
[pid   552] close(3 <unfinished ...>
[pid   541] <... futex resumed>)        = ?
[pid   536] <... exit_group resumed>)   = ?
[pid   549] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   541] +++ exited with 0 +++
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   552] <... close resumed>)        = 0
[pid   551] <... futex resumed>)        = ?
[pid   549] <... futex resumed>)        = 1
[pid   547] <... futex resumed>)        = 0
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   551] +++ exited with 0 +++
[pid   549] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   536] +++ exited with 0 +++
[pid   549] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   547] <... futex resumed>)        = 0
[pid   549] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=536, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   552] <... futex resumed>)        = 0
[pid   550] <... mmap resumed>)         = 0x20000000
[pid   549] <... mmap resumed>)         = 0x20000000
[pid   546] <... mmap resumed>)         = 0x20000000
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   552] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   550] <... futex resumed>)        = 1
[pid   549] <... futex resumed>)        = 1
[pid   547] <... futex resumed>)        = 0
[pid   546] <... futex resumed>)        = 1
[pid   545] <... futex resumed>)        = 0
[pid   543] <... futex resumed>)        = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   552] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   550] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   549] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   548] <... mmap resumed>)         = 0x20000000
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   546] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
[pid   552] <... mprotect resumed>)     = 0
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   547] <... futex resumed>)        = 0
[pid   546] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   545] <... futex resumed>)        = 0
[pid   543] <... futex resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   552] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   550] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   548] <... futex resumed>)        = 1
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   546] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   544] <... futex resumed>)        = 0
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   548] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   552] <... clone resumed>, parent_tid=[553], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 553
[pid   548] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   544] <... futex resumed>)        = 0
[pid   552] <... futex resumed>)        = 0
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 553 attached
 <unfinished ...>
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   553] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 554
[pid   553] memfd_create("syzkaller", 0) = 3
[pid   553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 554 attached
[pid   554] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   554] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   550] <... madvise resumed>)      = 0
[pid   549] <... madvise resumed>)      = 0
[pid   548] <... madvise resumed>)      = 0
[pid   546] <... madvise resumed>)      = 0
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   543] <... futex resumed>)        = 0
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... prctl resumed>)        = 0
[pid   550] <... futex resumed>)        = 1
[pid   548] <... futex resumed>)        = 1
[pid   546] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   545] <... futex resumed>)        = 0
[pid   544] <... futex resumed>)        = 0
[pid   543] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   546] <... openat resumed>)       = 5
[pid   543] <... futex resumed>)        = 0
[pid   550] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   548] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   545] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   544] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   546] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   543] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   546] <... futex resumed>)        = 0
[pid   543] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   554] setpgid(0, 0 <unfinished ...>
[pid   550] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   548] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   545] <... futex resumed>)        = 0
[pid   544] <... futex resumed>)        = 0
[pid   546] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   543] exit_group(0 <unfinished ...>
[pid   546] <... futex resumed>)        = ?
[pid   543] <... exit_group resumed>)   = ?
[pid   554] <... setpgid resumed>)      = 0
[pid   550] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   548] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   546] +++ exited with 0 +++
[pid   545] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   544] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   543] +++ exited with 0 +++
[pid   550] <... openat resumed>)       = 5
[pid   548] <... openat resumed>)       = 5
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=543, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   550] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   544] <... futex resumed>)        = 0
[pid   554] <... openat resumed>)       = 3
[pid   550] <... futex resumed>)        = 1
[pid   545] <... futex resumed>)        = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   544] exit_group(0 <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   550] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   545] exit_group(0 <unfinished ...>
[pid   544] <... exit_group resumed>)   = ?
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   301] close(3 <unfinished ...>
[pid   554] write(3, "1000", 4 <unfinished ...>
[pid   553] <... write resumed>)        = 1048576
[pid   550] <... futex resumed>)        = ?
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   548] +++ exited with 0 +++
[pid   545] <... exit_group resumed>)   = ?
[pid   544] +++ exited with 0 +++
[pid   301] <... close resumed>)        = 0
[pid   554] <... write resumed>)        = 4
[pid   550] +++ exited with 0 +++
[pid   545] +++ exited with 0 +++
[pid   554] close(3)                    = 0
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   554] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   554] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[555], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 555
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=545, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   553] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   547] <... futex resumed>)        = 0
[pid   547] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=544, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 556 attached
./strace-static-x86_64: Process 555 attached
[pid   547] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 556
[pid   556] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   555] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   553] <... munmap resumed>)       = 0
[pid   549] <... futex resumed>)        = 1
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   556] <... set_robust_list resumed>) = 0
[pid   555] <... set_robust_list resumed>) = 0
[pid   553] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   549] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   556] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] memfd_create("syzkaller", 0 <unfinished ...>
[pid   553] <... openat resumed>)       = 4
[pid   549] <... openat resumed>)       = 5
[pid   300] close(3 <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   556] <... prctl resumed>)        = 0
[pid   556] setpgid(0, 0)               = 0
[pid   556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   556] write(3, "1000", 4)         = 4
[pid   556] close(3)                    = 0
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   556] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   556] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   556] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[557], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 557
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   555] <... memfd_create resumed>) = 3
[pid   555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   553] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   549] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   549] <... futex resumed>)        = 1
[pid   547] <... futex resumed>)        = 0
[pid   553] <... ioctl resumed>)        = 0
[pid   549] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   547] exit_group(0 <unfinished ...>
[pid   549] <... futex resumed>)        = ?
[pid   547] <... exit_group resumed>)   = ?
[pid   549] +++ exited with 0 +++
[pid   547] +++ exited with 0 +++
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   553] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 558
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=547, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   553] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 559
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   553] close(4 <unfinished ...>
[pid   295] <... restart_syscall resumed>) = 0
[pid   553] <... close resumed>)        = 0
[pid   553] close(3)                    = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 560
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   553] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   552] <... futex resumed>)        = 0
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   553] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   552] <... futex resumed>)        = 0
[pid   553] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   553] <... open resumed>)         = 4
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   552] <... futex resumed>)        = 0
[pid   553] ftruncate(4, 33587195 <unfinished ...>
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   553] <... ftruncate resumed>)    = 0
[pid   552] <... futex resumed>)        = 0
./strace-static-x86_64: Process 559 attached
./strace-static-x86_64: Process 558 attached
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 557 attached
 <unfinished ...>
[pid   559] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   558] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   552] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
./strace-static-x86_64: Process 560 attached
[pid   559] <... set_robust_list resumed>) = 0
[pid   558] <... set_robust_list resumed>) = 0
[pid   557] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   553] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   559] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   558] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   557] <... set_robust_list resumed>) = 0
[pid   552] <... futex resumed>)        = 0
[pid   560] <... set_robust_list resumed>) = 0
[pid   559] <... prctl resumed>)        = 0
[pid   558] <... prctl resumed>)        = 0
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   557] memfd_create("syzkaller", 0 <unfinished ...>
[pid   559] setpgid(0, 0 <unfinished ...>
[pid   558] setpgid(0, 0 <unfinished ...>
[pid   559] <... setpgid resumed>)      = 0
[pid   560] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   558] <... setpgid resumed>)      = 0
[pid   557] <... memfd_create resumed>) = 3
[pid   553] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   560] <... prctl resumed>)        = 0
[pid   558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] setpgid(0, 0 <unfinished ...>
[pid   559] <... openat resumed>)       = 3
[pid   558] <... openat resumed>)       = 3
[pid   557] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   553] <... futex resumed>)        = 1
[pid   552] <... futex resumed>)        = 0
[pid   560] <... setpgid resumed>)      = 0
[pid   559] write(3, "1000", 4 <unfinished ...>
[pid   558] write(3, "1000", 4 <unfinished ...>
[pid   553] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   559] <... write resumed>)        = 4
[pid   558] <... write resumed>)        = 4
[pid   557] <... mmap resumed>)         = 0x7efceeaa9000
[pid   553] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   552] <... futex resumed>)        = 0
[pid   560] <... openat resumed>)       = 3
[pid   559] close(3 <unfinished ...>
[pid   558] close(3 <unfinished ...>
[pid   553] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] <... close resumed>)        = 0
[pid   558] <... close resumed>)        = 0
[pid   557] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   555] <... write resumed>)        = 1048576
[pid   560] write(3, "1000", 4 <unfinished ...>
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] <... write resumed>)        = 1048576
[pid   555] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   560] <... write resumed>)        = 4
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   555] <... munmap resumed>)       = 0
[pid   559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   555] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   560] close(3 <unfinished ...>
[pid   559] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   558] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   555] <... openat resumed>)       = 4
[pid   559] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   558] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   559] <... mprotect resumed>)     = 0
[pid   558] <... mprotect resumed>)     = 0
[pid   555] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   560] <... close resumed>)        = 0
[pid   559] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   558] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   559] <... clone resumed>, parent_tid=[561], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 561
[pid   558] <... clone resumed>, parent_tid=[562], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 562
[pid   555] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] <... ioctl resumed>)        = 0
[pid   560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   560] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   557] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   560] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   557] <... munmap resumed>)       = 0
[pid   557] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   557] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   557] ioctl(4, LOOP_CLR_FD)       = 0
[pid   560] <... mprotect resumed>)     = 0
[pid   560] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   555] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   555] close(4./strace-static-x86_64: Process 563 attached
./strace-static-x86_64: Process 562 attached
./strace-static-x86_64: Process 561 attached
 <unfinished ...>
[pid   560] <... clone resumed>, parent_tid=[563], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 563
[pid   555] <... close resumed>)        = 0
[pid   557] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   555] close(3 <unfinished ...>
[pid   563] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   562] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   561] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   555] <... close resumed>)        = 0
[pid   557] close(4 <unfinished ...>
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... set_robust_list resumed>) = 0
[pid   562] <... set_robust_list resumed>) = 0
[pid   561] <... set_robust_list resumed>) = 0
[pid   560] <... futex resumed>)        = 0
[pid   557] <... close resumed>)        = 0
[pid   555] <... futex resumed>)        = 1
[pid   554] <... futex resumed>)        = 0
[pid   553] <... mmap resumed>)         = 0x20000000
[pid   563] memfd_create("syzkaller", 0 <unfinished ...>
[pid   562] memfd_create("syzkaller", 0 <unfinished ...>
[pid   561] memfd_create("syzkaller", 0 <unfinished ...>
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   557] close(3 <unfinished ...>
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... memfd_create resumed>) = 3
[pid   562] <... memfd_create resumed>) = 3
[pid   561] <... memfd_create resumed>) = 3
[pid   555] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   554] <... futex resumed>)        = 0
[pid   553] <... futex resumed>)        = 1
[pid   552] <... futex resumed>)        = 0
[pid   563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   562] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   553] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   563] <... mmap resumed>)         = 0x7efceeaa9000
[pid   562] <... mmap resumed>)         = 0x7efceeaa9000
[pid   561] <... mmap resumed>)         = 0x7efceeaa9000
[pid   557] <... close resumed>)        = 0
[pid   555] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] <... open resumed>)         = 3
[pid   552] <... futex resumed>)        = 0
[pid   557] <... futex resumed>)        = 1
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   555] <... futex resumed>)        = 1
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   553] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   553] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   562] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   556] <... futex resumed>)        = 0
[pid   554] <... futex resumed>)        = 0
[pid   563] <... write resumed>)        = 1048576
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... madvise resumed>)      = 0
[pid   557] <... futex resumed>)        = 0
[pid   556] <... futex resumed>)        = 1
[pid   555] <... futex resumed>)        = 0
[pid   554] <... futex resumed>)        = 1
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   553] <... futex resumed>)        = 1
[pid   552] <... futex resumed>)        = 0
[pid   557] <... open resumed>)         = 3
[pid   555] <... open resumed>)         = 4
[pid   553] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   552] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... openat resumed>)       = 5
[pid   552] <... futex resumed>)        = 0
[pid   557] <... futex resumed>)        = 1
[pid   556] <... futex resumed>)        = 0
[pid   555] <... futex resumed>)        = 1
[pid   554] <... futex resumed>)        = 0
[pid   553] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   552] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   553] <... futex resumed>)        = 0
[pid   552] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   557] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   556] <... futex resumed>)        = 0
[pid   555] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   554] <... futex resumed>)        = 0
[pid   553] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   552] exit_group(0 <unfinished ...>
[pid   557] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] ftruncate(4, 33587195 <unfinished ...>
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   553] <... futex resumed>)        = ?
[pid   552] <... exit_group resumed>)   = ?
[pid   557] <... open resumed>)         = 4
[pid   555] <... ftruncate resumed>)    = 0
[pid   553] +++ exited with 0 +++
[pid   552] +++ exited with 0 +++
[pid   561] <... write resumed>)        = 1048576
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=552, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   557] <... futex resumed>)        = 1
[pid   556] <... futex resumed>)        = 0
[pid   555] <... futex resumed>)        = 1
[pid   554] <... futex resumed>)        = 0
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   556] <... futex resumed>)        = 0
[pid   555] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   554] <... futex resumed>)        = 0
[pid   557] ftruncate(4, 33587195 <unfinished ...>
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   557] <... ftruncate resumed>)    = 0
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   557] <... futex resumed>)        = 1
[pid   556] <... futex resumed>)        = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   557] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   556] <... futex resumed>)        = 0
[pid   293] close(3 <unfinished ...>
[pid   557] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   563] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   562] <... write resumed>)        = 1048576
[pid   561] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   563] <... munmap resumed>)       = 0
[pid   562] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   561] <... munmap resumed>)       = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   563] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   562] <... munmap resumed>)       = 0
[pid   561] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   563] <... openat resumed>)       = 4
[pid   562] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   561] <... openat resumed>)       = 4
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 564
[pid   563] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   562] <... openat resumed>)       = 4
[pid   561] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   563] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   562] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   561] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   563] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   562] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   561] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   563] <... ioctl resumed>)        = 0
[pid   562] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   561] <... ioctl resumed>)        = 0
[pid   562] <... ioctl resumed>)        = 0
[pid   557] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   563] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   561] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   562] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   561] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   557] <... futex resumed>)        = 1
[pid   556] <... futex resumed>)        = 0
[pid   563] close(4 <unfinished ...>
[pid   562] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   561] close(4 <unfinished ...>
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 564 attached
 <unfinished ...>
[pid   562] close(4 <unfinished ...>
[pid   557] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   555] <... futex resumed>)        = 1
[pid   554] <... futex resumed>)        = 0
[pid   564] <... set_robust_list resumed>) = 0
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   555] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   554] <... futex resumed>)        = 0
[pid   564] <... prctl resumed>)        = 0
[pid   555] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] <... close resumed>)        = 0
[pid   562] <... close resumed>)        = 0
[pid   561] <... close resumed>)        = 0
[pid   557] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   556] <... futex resumed>)        = 0
[pid   563] close(3 <unfinished ...>
[pid   562] close(3 <unfinished ...>
[pid   561] close(3 <unfinished ...>
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] setpgid(0, 0 <unfinished ...>
[pid   563] <... close resumed>)        = 0
[pid   562] <... close resumed>)        = 0
[pid   561] <... close resumed>)        = 0
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   563] <... futex resumed>)        = 1
[pid   563] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   562] <... futex resumed>)        = 1
[pid   561] <... futex resumed>)        = 1
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   563] <... open resumed>)         = 3
[pid   562] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   561] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] <... setpgid resumed>)      = 0
[pid   564] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   564] write(3, "1000", 4)         = 4
[pid   564] close(3)                    = 0
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   564] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   562] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] <... open resumed>)         = 3
[pid   562] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   563] <... futex resumed>)        = 1
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   563] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   562] <... open resumed>)         = 3
[pid   561] <... futex resumed>)        = 1
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   564] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   563] <... open resumed>)         = 4
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... mprotect resumed>)     = 0
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] <... futex resumed>)        = 1
[pid   561] <... open resumed>)         = 4
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   564] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   562] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   558] <... futex resumed>)        = 0
[pid   564] <... clone resumed>, parent_tid=[565], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 565
[pid   563] ftruncate(4, 33587195 <unfinished ...>
[pid   562] <... open resumed>)         = 4
[pid   561] <... futex resumed>)        = 0
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] ftruncate(4, 33587195 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   564] <... futex resumed>)        = 0
[pid   563] <... ftruncate resumed>)    = 0
[pid   562] <... futex resumed>)        = 0
[pid   561] <... ftruncate resumed>)    = 0
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] ftruncate(4, 33587195 <unfinished ...>
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   563] <... futex resumed>)        = 1
[pid   561] <... futex resumed>)        = 1
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   561] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   561] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   562] <... ftruncate resumed>)    = 0
[pid   561] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   563] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] <... futex resumed>)        = 1
[pid   563] <... futex resumed>)        = 1
[pid   562] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   561] <... futex resumed>)        = 1
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   562] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   563] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   563] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   558] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   562] <... futex resumed>)        = 0
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   558] <... futex resumed>)        = 0
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 565 attached
 <unfinished ...>
[pid   565] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   565] memfd_create("syzkaller", 0) = 3
[pid   565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   565] munmap(0x7efceeaa9000, 1048576) = 0
[pid   565] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   565] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   565] ioctl(4, LOOP_CLR_FD)       = 0
[pid   565] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   565] close(4 <unfinished ...>
[pid   563] <... mmap resumed>)         = 0x20000000
[pid   562] <... mmap resumed>)         = 0x20000000
[pid   561] <... mmap resumed>)         = 0x20000000
[pid   565] <... close resumed>)        = 0
[pid   565] close(3 <unfinished ...>
[pid   555] <... mmap resumed>)         = 0x20000000
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   563] <... futex resumed>)        = 1
[pid   561] <... futex resumed>)        = 1
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   563] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   561] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] <... futex resumed>)        = 0
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] <... futex resumed>)        = 0
[pid   561] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   561] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   557] <... mmap resumed>)         = 0x20000000
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] <... futex resumed>)        = 0
[pid   554] <... futex resumed>)        = 0
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   556] <... futex resumed>)        = 0
[pid   557] <... futex resumed>)        = 1
[pid   555] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   557] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   556] <... futex resumed>)        = 0
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   562] <... futex resumed>)        = 1
[pid   558] <... futex resumed>)        = 0
[pid   562] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   565] <... close resumed>)        = 0
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   565] <... futex resumed>)        = 1
[pid   565] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   565] <... futex resumed>)        = 1
[pid   565] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   565] <... futex resumed>)        = 1
[pid   565] ftruncate(4, 33587195 <unfinished ...>
[pid   563] <... madvise resumed>)      = 0
[pid   557] <... madvise resumed>)      = 0
[pid   555] <... madvise resumed>)      = 0
[pid   565] <... ftruncate resumed>)    = 0
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] <... madvise resumed>)      = 0
[pid   561] <... madvise resumed>)      = 0
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] <... futex resumed>)        = 1
[pid   556] <... futex resumed>)        = 0
[pid   555] <... futex resumed>)        = 1
[pid   554] <... futex resumed>)        = 0
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] <... futex resumed>)        = 1
[pid   561] <... futex resumed>)        = 1
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   556] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   562] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   561] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   560] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   559] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   558] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   556] <... futex resumed>)        = 0
[pid   554] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   565] <... futex resumed>)        = 1
[pid   565] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   562] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   561] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   560] <... futex resumed>)        = 0
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   557] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   556] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   555] <... futex resumed>)        = 0
[pid   554] <... futex resumed>)        = 1
[pid   564] <... futex resumed>)        = 0
[pid   563] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   562] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   561] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   560] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   559] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   558] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   557] <... openat resumed>)       = 5
[pid   555] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   562] <... openat resumed>)       = 5
[pid   561] <... openat resumed>)       = 5
[pid   557] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   555] <... openat resumed>)       = 5
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   562] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   561] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   557] <... futex resumed>)        = 1
[pid   556] <... futex resumed>)        = 0
[pid   555] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   554] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   565] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   562] <... futex resumed>)        = 1
[pid   561] <... futex resumed>)        = 1
[pid   559] <... futex resumed>)        = 0
[pid   558] <... futex resumed>)        = 0
[pid   557] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   556] exit_group(0 <unfinished ...>
[pid   555] <... futex resumed>)        = 0
[pid   554] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   563] <... openat resumed>)       = 5
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   561] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   559] exit_group(0 <unfinished ...>
[pid   558] exit_group(0 <unfinished ...>
[pid   557] <... futex resumed>)        = ?
[pid   556] <... exit_group resumed>)   = ?
[pid   555] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   565] <... futex resumed>)        = 1
[pid   564] <... futex resumed>)        = 0
[pid   563] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   562] <... futex resumed>)        = ?
[pid   561] <... futex resumed>)        = ?
[pid   559] <... exit_group resumed>)   = ?
[pid   558] <... exit_group resumed>)   = ?
[pid   557] +++ exited with 0 +++
[pid   554] exit_group(0 <unfinished ...>
[pid   565] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   563] <... futex resumed>)        = 1
[pid   554] <... exit_group resumed>)   = ?
[pid   565] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   564] <... futex resumed>)        = 0
[pid   563] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   562] +++ exited with 0 +++
[pid   561] +++ exited with 0 +++
[pid   560] <... futex resumed>)        = 0
[pid   556] +++ exited with 0 +++
[pid   565] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   560] exit_group(0 <unfinished ...>
[pid   559] +++ exited with 0 +++
[pid   558] +++ exited with 0 +++
[pid   555] <... futex resumed>)        = ?
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=556, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   560] <... exit_group resumed>)   = ?
[pid   555] +++ exited with 0 +++
[pid   554] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=559, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=558, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=554, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   299] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 566
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 567
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 568
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 569
./strace-static-x86_64: Process 566 attached
./strace-static-x86_64: Process 567 attached
[pid   566] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   567] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   566] <... set_robust_list resumed>) = 0
[pid   566] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   567] <... set_robust_list resumed>) = 0
[pid   567] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 569 attached
 <unfinished ...>
[pid   566] <... prctl resumed>)        = 0
[pid   569] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   567] <... prctl resumed>)        = 0
[pid   566] setpgid(0, 0 <unfinished ...>
[pid   569] <... set_robust_list resumed>) = 0
[pid   567] setpgid(0, 0 <unfinished ...>
[pid   566] <... setpgid resumed>)      = 0
[pid   569] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   567] <... setpgid resumed>)      = 0
[pid   566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   569] <... prctl resumed>)        = 0
[pid   567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   566] <... openat resumed>)       = 3
[pid   567] <... openat resumed>)       = 3
[pid   569] setpgid(0, 0 <unfinished ...>
[pid   566] write(3, "1000", 4 <unfinished ...>
[pid   567] write(3, "1000", 4 <unfinished ...>
[pid   563] <... futex resumed>)        = ?
[pid   569] <... setpgid resumed>)      = 0
[pid   567] <... write resumed>)        = 4
[pid   566] <... write resumed>)        = 4
[pid   569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   567] close(3 <unfinished ...>
[pid   566] close(3 <unfinished ...>
[pid   567] <... close resumed>)        = 0
[pid   566] <... close resumed>)        = 0
[pid   569] <... openat resumed>)       = 3
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] write(3, "1000", 4 <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   569] <... write resumed>)        = 4
[pid   566] <... futex resumed>)        = 0
[pid   566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   569] close(3 <unfinished ...>
[pid   566] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   569] <... close resumed>)        = 0
[pid   567] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   567] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   566] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] <... mprotect resumed>)     = 0
[pid   566] <... mprotect resumed>)     = 0
[pid   567] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   566] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   569] <... futex resumed>)        = 0
[pid   569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   566] <... clone resumed>, parent_tid=[571], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 571
[pid   567] <... clone resumed>, parent_tid=[570], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 570
[pid   569] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] <... mprotect resumed>)     = 0
[pid   566] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   569] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   569] <... clone resumed>, parent_tid=[572], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 572
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   563] +++ exited with 0 +++
[pid   560] +++ exited with 0 +++
./strace-static-x86_64: Process 571 attached
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=560, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   571] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   571] memfd_create("syzkaller", 0 <unfinished ...>
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   571] <... memfd_create resumed>) = 3
[pid   571] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   295] <... restart_syscall resumed>) = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 573
./strace-static-x86_64: Process 572 attached
./strace-static-x86_64: Process 570 attached
./strace-static-x86_64: Process 568 attached
[pid   565] <... mmap resumed>)         = 0x20000000
[pid   572] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   570] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] <... set_robust_list resumed>) = 0
[pid   570] <... set_robust_list resumed>) = 0
[pid   568] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   565] <... futex resumed>)        = 1
[pid   564] <... futex resumed>)        = 0
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   570] memfd_create("syzkaller", 0) = 3
[pid   570] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   572] memfd_create("syzkaller", 0 <unfinished ...>
[pid   570] <... mmap resumed>)         = 0x7efceeaa9000
[pid   572] <... memfd_create resumed>) = 3
[pid   572] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 573 attached
[pid   573] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   573] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   573] setpgid(0, 0)               = 0
[pid   573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   565] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   573] write(3, "1000", 4)         = 4
[pid   573] close(3)                    = 0
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   573] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   573] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   568] <... set_robust_list resumed>) = 0
[pid   573] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   573] <... clone resumed>, parent_tid=[574], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 574
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   568] setpgid(0, 0)               = 0
[pid   568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   568] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 574 attached
[pid   574] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   574] memfd_create("syzkaller", 0 <unfinished ...>
[pid   568] close(3 <unfinished ...>
[pid   574] <... memfd_create resumed>) = 3
[pid   568] <... close resumed>)        = 0
[pid   574] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   568] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   570] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   568] <... mprotect resumed>)     = 0
[pid   568] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   572] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   568] <... clone resumed>, parent_tid=[575], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 575
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   571] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 575 attached
 <unfinished ...>
[pid   574] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   575] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   575] memfd_create("syzkaller", 0 <unfinished ...>
[pid   570] <... write resumed>)        = 1048576
[pid   575] <... memfd_create resumed>) = 3
[pid   572] <... write resumed>)        = 1048576
[pid   570] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   572] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   570] <... munmap resumed>)       = 0
[pid   575] <... mmap resumed>)         = 0x7efceeaa9000
[pid   572] <... munmap resumed>)       = 0
[pid   570] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   572] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   570] <... openat resumed>)       = 4
[pid   572] <... openat resumed>)       = 4
[pid   572] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   570] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   572] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   570] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   572] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   570] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   572] <... ioctl resumed>)        = 0
[pid   570] <... ioctl resumed>)        = 0
[pid   570] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   572] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   570] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   572] close(4 <unfinished ...>
[pid   571] <... write resumed>)        = 1048576
[pid   570] close(4 <unfinished ...>
[pid   575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   574] <... write resumed>)        = 1048576
[pid   572] <... close resumed>)        = 0
[pid   571] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   570] <... close resumed>)        = 0
[pid   565] <... madvise resumed>)      = 0
[pid   574] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   572] close(3 <unfinished ...>
[pid   571] <... munmap resumed>)       = 0
[pid   570] close(3 <unfinished ...>
[pid   575] <... write resumed>)        = 1048576
[pid   574] <... munmap resumed>)       = 0
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] munmap(0x7efceeaa9000, 1048576) = 0
[pid   572] <... close resumed>)        = 0
[pid   575] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   564] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   575] <... openat resumed>)       = 4
[pid   564] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   564] <... futex resumed>)        = 0
[pid   575] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   574] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   570] <... close resumed>)        = 0
[pid   565] <... futex resumed>)        = 0
[pid   564] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   575] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   574] <... openat resumed>)       = 4
[pid   572] <... futex resumed>)        = 1
[pid   571] <... openat resumed>)       = 4
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] <... futex resumed>)        = 0
[pid   575] <... ioctl resumed>)        = 0
[pid   574] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   571] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   570] <... futex resumed>)        = 1
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] <... futex resumed>)        = 0
[pid   574] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   571] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   569] <... futex resumed>)        = 0
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   572] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   571] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   570] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] <... futex resumed>)        = 0
[pid   574] <... ioctl resumed>)        = 0
[pid   572] <... open resumed>)         = 3
[pid   571] <... ioctl resumed>)        = 0
[pid   570] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] <... open resumed>)         = 3
[pid   572] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = 0
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] <... futex resumed>)        = 1
[pid   572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   569] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   575] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   572] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   572] <... open resumed>)         = 4
[pid   570] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 1
[pid   575] close(4 <unfinished ...>
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   575] <... close resumed>)        = 0
[pid   574] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   572] <... futex resumed>)        = 1
[pid   570] <... open resumed>)         = 4
[pid   569] <... futex resumed>)        = 0
[pid   565] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   575] close(3 <unfinished ...>
[pid   574] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   571] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   565] <... openat resumed>)       = 5
[pid   574] close(4 <unfinished ...>
[pid   572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   571] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   570] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   565] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] <... close resumed>)        = 0
[pid   572] ftruncate(4, 33587195 <unfinished ...>
[pid   571] close(4 <unfinished ...>
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   565] <... futex resumed>)        = 1
[pid   564] <... futex resumed>)        = 0
[pid   575] <... close resumed>)        = 0
[pid   574] close(3 <unfinished ...>
[pid   572] <... ftruncate resumed>)    = 0
[pid   571] <... close resumed>)        = 0
[pid   570] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   567] <... futex resumed>)        = 0
[pid   565] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   564] exit_group(0 <unfinished ...>
[pid   574] <... close resumed>)        = 0
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] close(3 <unfinished ...>
[pid   570] ftruncate(4, 33587195 <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] <... futex resumed>)        = 1
[pid   571] <... close resumed>)        = 0
[pid   570] <... ftruncate resumed>)    = 0
[pid   569] <... futex resumed>)        = 0
[pid   574] <... futex resumed>)        = 1
[pid   573] <... futex resumed>)        = 0
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   565] <... futex resumed>)        = ?
[pid   564] <... exit_group resumed>)   = ?
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   571] <... futex resumed>)        = 1
[pid   570] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   565] +++ exited with 0 +++
[pid   574] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   572] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   571] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   570] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   574] <... open resumed>)         = 3
[pid   571] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   570] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   575] <... futex resumed>)        = 1
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   573] <... futex resumed>)        = 0
[pid   572] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   571] <... open resumed>)         = 3
[pid   570] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   568] <... futex resumed>)        = 0
[pid   564] +++ exited with 0 +++
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   574] <... futex resumed>)        = 0
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   574] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   573] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   572] <... futex resumed>)        = 1
[pid   571] <... futex resumed>)        = 1
[pid   570] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = 0
[pid   568] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=564, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   571] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   575] <... open resumed>)         = 3
[pid   574] <... futex resumed>)        = 0
[pid   573] <... futex resumed>)        = 1
[pid   572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   570] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   569] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   293] <... openat resumed>)       = 3
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   572] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   571] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   570] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   575] <... futex resumed>)        = 1
[pid   574] <... open resumed>)         = 4
[pid   571] <... open resumed>)         = 4
[pid   568] <... futex resumed>)        = 0
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   568] <... futex resumed>)        = 0
[pid   575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   575] <... open resumed>)         = 4
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   568] <... futex resumed>)        = 0
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   574] <... futex resumed>)        = 1
[pid   573] <... futex resumed>)        = 0
[pid   571] <... futex resumed>)        = 1
[pid   568] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   293] close(3 <unfinished ...>
[pid   575] ftruncate(4, 33587195 <unfinished ...>
[pid   574] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   574] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   573] <... futex resumed>)        = 0
[pid   571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   566] <... futex resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   574] ftruncate(4, 33587195 <unfinished ...>
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   571] ftruncate(4, 33587195 <unfinished ...>
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 576
./strace-static-x86_64: Process 576 attached
[pid   576] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   576] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   576] setpgid(0, 0)               = 0
[pid   576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   575] <... ftruncate resumed>)    = 0
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   568] <... futex resumed>)        = 0
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   574] <... ftruncate resumed>)    = 0
[pid   571] <... ftruncate resumed>)    = 0
[pid   568] <... futex resumed>)        = 0
[pid   575] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   575] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   574] <... futex resumed>)        = 1
[pid   573] <... futex resumed>)        = 0
[pid   571] <... futex resumed>)        = 1
[pid   566] <... futex resumed>)        = 0
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] <... futex resumed>)        = 1
[pid   574] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   573] <... futex resumed>)        = 0
[pid   571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   568] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   576] <... openat resumed>)       = 3
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   574] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   571] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   576] write(3, "1000", 4 <unfinished ...>
[pid   575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   574] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   571] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   568] <... futex resumed>)        = 0
[pid   576] <... write resumed>)        = 4
[pid   575] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   576] close(3)                    = 0
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   576] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   576] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[577], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 577
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   574] <... futex resumed>)        = 1
[pid   573] <... futex resumed>)        = 0
[pid   571] <... futex resumed>)        = 1
[pid   566] <... futex resumed>)        = 0
[pid   574] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   573] <... futex resumed>)        = 0
[pid   571] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   566] <... futex resumed>)        = 0
[pid   574] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   571] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 577 attached
 <unfinished ...>
[pid   577] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   577] memfd_create("syzkaller", 0) = 3
[pid   577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   577] munmap(0x7efceeaa9000, 1048576) = 0
[pid   577] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   577] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   577] ioctl(4, LOOP_CLR_FD)       = 0
[pid   575] <... mmap resumed>)         = 0x20000000
[pid   574] <... mmap resumed>)         = 0x20000000
[pid   572] <... mmap resumed>)         = 0x20000000
[pid   571] <... mmap resumed>)         = 0x20000000
[pid   570] <... mmap resumed>)         = 0x20000000
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   573] <... futex resumed>)        = 0
[pid   574] <... futex resumed>)        = 1
[pid   575] <... futex resumed>)        = 1
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   568] <... futex resumed>)        = 0
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   575] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   574] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   572] <... futex resumed>)        = 1
[pid   571] <... futex resumed>)        = 1
[pid   570] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = 0
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   571] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   568] <... futex resumed>)        = 0
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] <... futex resumed>)        = 0
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   577] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   577] close(4)                    = 0
[pid   577] close(3)                    = 0
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   576] <... futex resumed>)        = 0
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   576] <... futex resumed>)        = 0
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   576] <... futex resumed>)        = 0
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   577] ftruncate(4, 33587195 <unfinished ...>
[pid   575] <... madvise resumed>)      = 0
[pid   574] <... madvise resumed>)      = 0
[pid   571] <... madvise resumed>)      = 0
[pid   577] <... ftruncate resumed>)    = 0
[pid   572] <... madvise resumed>)      = 0
[pid   570] <... madvise resumed>)      = 0
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] <... futex resumed>)        = 1
[pid   571] <... futex resumed>)        = 1
[pid   570] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = 0
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   567] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   570] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   569] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] <... futex resumed>)        = 0
[pid   566] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   572] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   571] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   570] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   569] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = 0
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] <... openat resumed>)       = 5
[pid   570] <... openat resumed>)       = 5
[pid   577] <... futex resumed>)        = 1
[pid   576] <... futex resumed>)        = 0
[pid   575] <... futex resumed>)        = 1
[pid   572] <... futex resumed>)        = 0
[pid   570] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   569] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   568] <... futex resumed>)        = 0
[pid   566] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   571] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   577] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   572] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   570] <... futex resumed>)        = 1
[pid   569] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   568] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   567] <... futex resumed>)        = 0
[pid   566] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   571] <... futex resumed>)        = 0
[pid   574] <... futex resumed>)        = 1
[pid   573] <... futex resumed>)        = 0
[pid   576] <... futex resumed>)        = 0
[pid   573] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   570] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   567] exit_group(0 <unfinished ...>
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   573] <... futex resumed>)        = 0
[pid   570] <... futex resumed>)        = ?
[pid   567] <... exit_group resumed>)   = ?
[pid   575] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   574] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   573] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   571] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   570] +++ exited with 0 +++
[pid   569] exit_group(0 <unfinished ...>
[pid   568] <... futex resumed>)        = 0
[pid   566] exit_group(0 <unfinished ...>
[pid   577] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   575] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   574] <... openat resumed>)       = 5
[pid   567] +++ exited with 0 +++
[pid   572] <... futex resumed>)        = ?
[pid   569] <... exit_group resumed>)   = ?
[pid   568] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   566] <... exit_group resumed>)   = ?
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=567, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   575] <... openat resumed>)       = 5
[pid   571] <... futex resumed>)        = 5
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   572] +++ exited with 0 +++
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   569] +++ exited with 0 +++
[pid   300] close(3 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=569, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   577] <... futex resumed>)        = 1
[pid   576] <... futex resumed>)        = 0
[pid   575] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   574] <... futex resumed>)        = 1
[pid   573] <... futex resumed>)        = 0
[pid   571] +++ exited with 0 +++
[pid   566] +++ exited with 0 +++
[pid   300] <... close resumed>)        = 0
[pid   577] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   575] <... futex resumed>)        = 1
[pid   574] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   575] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   577] <... futex resumed>)        = 0
[pid   576] <... futex resumed>)        = 1
[pid   577] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   573] exit_group(0 <unfinished ...>
[pid   568] <... futex resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=566, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   573] <... exit_group resumed>)   = ?
[pid   568] exit_group(0 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   575] <... futex resumed>)        = ?
[pid   568] <... exit_group resumed>)   = ?
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 579
[pid   294] <... openat resumed>)       = 3
[pid   575] +++ exited with 0 +++
[pid   568] +++ exited with 0 +++
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=568, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   294] <... ioctl resumed>)        = 0
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   574] <... futex resumed>)        = ?
[pid   301] <... ioctl resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 579 attached
 <unfinished ...>
[pid   577] <... mmap resumed>)         = 0x20000000
[pid   574] +++ exited with 0 +++
[pid   573] +++ exited with 0 +++
[pid   301] <... close resumed>)        = 0
[pid   299] <... openat resumed>)       = 3
[pid   579] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=573, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   579] <... prctl resumed>)        = 0
[pid   577] <... futex resumed>)        = 1
[pid   576] <... futex resumed>)        = 0
[pid   579] setpgid(0, 0 <unfinished ...>
[pid   577] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] <... setpgid resumed>)      = 0
[pid   576] <... futex resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 580
[pid   579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] <... openat resumed>)       = 3
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 581
[pid   299] close(3 <unfinished ...>
[pid   579] write(3, "1000", 4)         = 4
[pid   299] <... close resumed>)        = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   579] close(3 <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   579] <... close resumed>)        = 0
[pid   295] <... openat resumed>)       = 3
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   579] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   579] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 583 attached
./strace-static-x86_64: Process 581 attached
 <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   579] <... clone resumed>, parent_tid=[582], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 582
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 583
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   579] <... futex resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 580 attached
 <unfinished ...>
[pid   580] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   580] setpgid(0, 0)               = 0
[pid   580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 584
[pid   580] write(3, "1000", 4)         = 4
[pid   580] close(3)                    = 0
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   580] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   580] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[585], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 585
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   581] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   583] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   581] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   583] <... set_robust_list resumed>) = 0
[pid   581] <... prctl resumed>)        = 0
[pid   583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   581] setpgid(0, 0)               = 0
[pid   583] setpgid(0, 0 <unfinished ...>
[pid   581] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   583] <... setpgid resumed>)      = 0
[pid   583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   581] <... openat resumed>)       = 3
[pid   581] write(3, "1000", 4 <unfinished ...>
[pid   583] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 582 attached
[pid   581] <... write resumed>)        = 4
[pid   583] close(3 <unfinished ...>
[pid   581] close(3 <unfinished ...>
[pid   582] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   583] <... close resumed>)        = 0
[pid   581] <... close resumed>)        = 0
[pid   582] <... set_robust_list resumed>) = 0
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] <... futex resumed>)        = 0
[pid   581] <... futex resumed>)        = 0
[pid   582] memfd_create("syzkaller", 0 <unfinished ...>
[pid   583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   581] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   582] <... memfd_create resumed>) = 3
[pid   583] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   581] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   583] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   581] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   582] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 585 attached
 <unfinished ...>
[pid   585] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   583] <... mprotect resumed>)     = 0
[pid   581] <... mprotect resumed>)     = 0
[pid   585] memfd_create("syzkaller", 0) = 3
[pid   585] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   581] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   583] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   582] <... mmap resumed>)         = 0x7efceeaa9000
[pid   583] <... clone resumed>, parent_tid=[587], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 587
[pid   581] <... clone resumed>, parent_tid=[586], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 586
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] <... futex resumed>)        = 0
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 584 attached
 <unfinished ...>
[pid   577] <... madvise resumed>)      = 0
[pid   584] set_robust_list(0x555556c5e5e0, 24./strace-static-x86_64: Process 587 attached
./strace-static-x86_64: Process 586 attached
 <unfinished ...>
[pid   585] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   584] <... set_robust_list resumed>) = 0
[pid   582] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   586] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   584] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   584] setpgid(0, 0)               = 0
[pid   584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   587] <... set_robust_list resumed>) = 0
[pid   586] <... set_robust_list resumed>) = 0
[pid   584] write(3, "1000", 4 <unfinished ...>
[pid   577] <... futex resumed>)        = 1
[pid   576] <... futex resumed>)        = 0
[pid   587] memfd_create("syzkaller", 0 <unfinished ...>
[pid   586] memfd_create("syzkaller", 0 <unfinished ...>
[pid   585] <... write resumed>)        = 1048576
[pid   584] <... write resumed>)        = 4
[pid   577] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   576] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... memfd_create resumed>) = 3
[pid   586] <... memfd_create resumed>) = 3
[pid   576] <... futex resumed>)        = 0
[pid   584] close(3 <unfinished ...>
[pid   587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   586] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   584] <... close resumed>)        = 0
[pid   577] <... openat resumed>)       = 5
[pid   576] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   587] <... mmap resumed>)         = 0x7efceeaa9000
[pid   586] <... mmap resumed>)         = 0x7efceeaa9000
[pid   585] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   577] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] <... futex resumed>)        = 0
[pid   577] <... futex resumed>)        = 1
[pid   584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   577] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   584] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   584] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   576] <... futex resumed>)        = 0
[pid   584] <... clone resumed>, parent_tid=[588], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 588
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 588 attached
 <unfinished ...>
[pid   588] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   588] memfd_create("syzkaller", 0) = 3
[pid   588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   586] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   576] exit_group(0 <unfinished ...>
[pid   577] <... futex resumed>)        = ?
[pid   576] <... exit_group resumed>)   = ?
[pid   587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   577] +++ exited with 0 +++
[pid   576] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=576, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 589
./strace-static-x86_64: Process 589 attached
[pid   589] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   589] setpgid(0, 0)               = 0
[pid   589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   589] write(3, "1000", 4)         = 4
[pid   589] close(3)                    = 0
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... write resumed>)        = 1048576
[pid   585] <... munmap resumed>)       = 0
[pid   589] <... futex resumed>)        = 0
[pid   589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   585] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   582] <... write resumed>)        = 1048576
[pid   589] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   586] <... write resumed>)        = 1048576
[pid   587] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   585] <... openat resumed>)       = 4
[pid   582] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   587] <... munmap resumed>)       = 0
[pid   585] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   582] <... munmap resumed>)       = 0
[pid   586] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   589] <... mprotect resumed>)     = 0
[pid   588] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   587] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   585] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   582] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   585] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   582] <... openat resumed>)       = 4
[pid   587] <... openat resumed>)       = 4
[pid   585] <... ioctl resumed>)        = 0
[pid   589] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   587] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   586] <... munmap resumed>)       = 0
[pid   582] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   586] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   587] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   582] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   586] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   586] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 590 attached
[pid   589] <... clone resumed>, parent_tid=[590], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 590
[pid   587] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   582] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   590] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... ioctl resumed>)        = 0
[pid   585] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   582] <... ioctl resumed>)        = 0
[pid   586] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   585] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   586] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   586] close(4 <unfinished ...>
[pid   585] close(4 <unfinished ...>
[pid   590] <... futex resumed>)        = 0
[pid   589] <... futex resumed>)        = 1
[pid   588] <... write resumed>)        = 1048576
[pid   586] <... close resumed>)        = 0
[pid   585] <... close resumed>)        = 0
[pid   590] memfd_create("syzkaller", 0 <unfinished ...>
[pid   586] close(3)                    = 0
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] <... memfd_create resumed>) = 3
[pid   586] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] <... futex resumed>)        = 0
[pid   586] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   586] <... open resumed>)         = 3
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   586] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   590] <... mmap resumed>)         = 0x7efceeaa9000
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   585] close(3 <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   586] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   582] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   586] <... open resumed>)         = 4
[pid   582] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] close(4 <unfinished ...>
[pid   586] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   582] <... close resumed>)        = 0
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   582] close(3 <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   586] ftruncate(4, 33587195 <unfinished ...>
[pid   585] <... close resumed>)        = 0
[pid   582] <... close resumed>)        = 0
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   588] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   586] <... ftruncate resumed>)    = 0
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... munmap resumed>)       = 0
[pid   587] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... futex resumed>)        = 1
[pid   580] <... futex resumed>)        = 0
[pid   588] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   587] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   586] <... futex resumed>)        = 1
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... openat resumed>)       = 4
[pid   587] close(4 <unfinished ...>
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   582] <... futex resumed>)        = 1
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   579] <... futex resumed>)        = 0
[pid   588] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   587] <... close resumed>)        = 0
[pid   586] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   585] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   587] close(3 <unfinished ...>
[pid   586] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   585] <... open resumed>)         = 3
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   588] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   586] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] <... ioctl resumed>)        = 0
[pid   587] <... close resumed>)        = 0
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... futex resumed>)        = 1
[pid   582] <... open resumed>)         = 3
[pid   580] <... futex resumed>)        = 0
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] <... futex resumed>)        = 1
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... futex resumed>)        = 1
[pid   586] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   583] <... futex resumed>)        = 0
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   587] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   585] <... open resumed>)         = 4
[pid   587] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... open resumed>)         = 3
[pid   585] <... futex resumed>)        = 1
[pid   580] <... futex resumed>)        = 0
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... futex resumed>)        = 0
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   580] <... futex resumed>)        = 0
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] ftruncate(4, 33587195 <unfinished ...>
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   587] <... futex resumed>)        = 0
[pid   585] <... ftruncate resumed>)    = 0
[pid   583] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   588] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   585] <... futex resumed>)        = 1
[pid   583] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   580] <... futex resumed>)        = 0
[pid   588] close(4 <unfinished ...>
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... close resumed>)        = 0
[pid   587] <... futex resumed>)        = 0
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   583] <... futex resumed>)        = 1
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   588] close(3 <unfinished ...>
[pid   587] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   585] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... write resumed>)        = 1048576
[pid   588] <... close resumed>)        = 0
[pid   587] <... open resumed>)         = 4
[pid   585] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   582] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 0
[pid   590] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = 1
[pid   587] <... futex resumed>)        = 1
[pid   585] <... futex resumed>)        = 1
[pid   584] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = 0
[pid   582] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   579] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   587] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   585] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   584] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = 0
[pid   582] <... open resumed>)         = 4
[pid   580] <... futex resumed>)        = 0
[pid   588] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   587] ftruncate(4, 33587195 <unfinished ...>
[pid   585] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... munmap resumed>)       = 0
[pid   588] <... open resumed>)         = 3
[pid   587] <... ftruncate resumed>)    = 0
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = 0
[pid   587] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   583] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   582] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 0
[pid   590] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   588] <... futex resumed>)        = 0
[pid   587] <... futex resumed>)        = 0
[pid   584] <... futex resumed>)        = 1
[pid   583] <... futex resumed>)        = 1
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   579] <... futex resumed>)        = 0
[pid   590] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   588] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   587] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] ftruncate(4, 33587195 <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   588] <... open resumed>)         = 4
[pid   587] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   582] <... ftruncate resumed>)    = 0
[pid   590] <... ioctl resumed>)        = 0
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = 1
[pid   587] <... futex resumed>)        = 1
[pid   584] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   587] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   585] <... mmap resumed>)         = 0x20000000
[pid   584] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   579] <... futex resumed>)        = 0
[pid   590] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   588] ftruncate(4, 33587195 <unfinished ...>
[pid   587] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   586] <... mmap resumed>)         = 0x20000000
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   588] <... ftruncate resumed>)    = 0
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   590] close(4 <unfinished ...>
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] <... futex resumed>)        = 1
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] <... futex resumed>)        = 0
[pid   590] <... close resumed>)        = 0
[pid   588] <... futex resumed>)        = 1
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 0
[pid   590] close(3 <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] <... close resumed>)        = 0
[pid   588] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   579] <... futex resumed>)        = 0
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   585] <... futex resumed>)        = 0
[pid   584] <... futex resumed>)        = 0
[pid   582] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   580] <... futex resumed>)        = 1
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   589] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] <... mmap resumed>)         = 0x20000000
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = 0
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] <... futex resumed>)        = 1
[pid   584] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] <... futex resumed>)        = 0
[pid   590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   589] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   587] <... futex resumed>)        = 1
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] <... futex resumed>)        = 0
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   586] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   584] <... futex resumed>)        = 0
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   581] <... futex resumed>)        = 0
[pid   590] <... open resumed>)         = 3
[pid   588] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   587] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   586] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   583] <... futex resumed>)        = 0
[pid   582] <... mmap resumed>)         = 0x20000000
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   589] <... futex resumed>)        = 0
[pid   588] <... mmap resumed>)         = 0x20000000
[pid   587] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   589] <... futex resumed>)        = 0
[pid   588] <... futex resumed>)        = 1
[pid   584] <... futex resumed>)        = 0
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   584] <... futex resumed>)        = 0
[pid   588] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] <... open resumed>)         = 4
[pid   582] <... futex resumed>)        = 1
[pid   579] <... futex resumed>)        = 0
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   589] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   579] <... futex resumed>)        = 0
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   589] <... futex resumed>)        = 0
[pid   585] <... madvise resumed>)      = 0
[pid   590] ftruncate(4, 33587195 <unfinished ...>
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] <... madvise resumed>)      = 0
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   580] <... futex resumed>)        = 0
[pid   587] <... madvise resumed>)      = 0
[pid   586] <... madvise resumed>)      = 0
[pid   590] <... ftruncate resumed>)    = 0
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... madvise resumed>)      = 0
[pid   587] <... futex resumed>)        = 1
[pid   586] <... futex resumed>)        = 1
[pid   585] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   583] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   580] <... futex resumed>)        = 0
[pid   579] <... futex resumed>)        = 0
[pid   590] <... futex resumed>)        = 1
[pid   589] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   583] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   580] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... futex resumed>)        = 1
[pid   587] <... openat resumed>)       = 5
[pid   586] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   584] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = 0
[pid   582] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   581] <... futex resumed>)        = 0
[pid   579] <... futex resumed>)        = 0
[pid   590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   589] <... futex resumed>)        = 0
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   587] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   586] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   584] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   583] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   582] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   581] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   579] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   587] <... futex resumed>)        = 0
[pid   586] <... openat resumed>)       = 5
[pid   585] <... openat resumed>)       = 5
[pid   584] <... futex resumed>)        = 0
[pid   583] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   582] <... openat resumed>)       = 5
[pid   588] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   587] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   586] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   585] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   584] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   583] exit_group(0 <unfinished ...>
[pid   582] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] <... openat resumed>)       = 5
[pid   587] <... futex resumed>)        = ?
[pid   586] <... futex resumed>)        = 1
[pid   585] <... futex resumed>)        = 1
[pid   583] <... exit_group resumed>)   = ?
[pid   582] <... futex resumed>)        = 1
[pid   581] <... futex resumed>)        = 0
[pid   580] <... futex resumed>)        = 0
[pid   579] <... futex resumed>)        = 0
[pid   590] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   587] +++ exited with 0 +++
[pid   586] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   582] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   581] exit_group(0 <unfinished ...>
[pid   579] exit_group(0 <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   586] <... futex resumed>)        = ?
[pid   582] <... futex resumed>)        = ?
[pid   581] <... exit_group resumed>)   = ?
[pid   579] <... exit_group resumed>)   = ?
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] <... futex resumed>)        = 0
[pid   588] <... futex resumed>)        = 1
[pid   586] +++ exited with 0 +++
[pid   584] <... futex resumed>)        = 0
[pid   583] +++ exited with 0 +++
[pid   582] +++ exited with 0 +++
[pid   581] +++ exited with 0 +++
[pid   580] exit_group(0 <unfinished ...>
[pid   579] +++ exited with 0 +++
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   588] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   585] <... futex resumed>)        = ?
[pid   584] exit_group(0 <unfinished ...>
[pid   580] <... exit_group resumed>)   = ?
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=581, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=579, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=583, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   590] <... futex resumed>)        = 0
[pid   589] <... futex resumed>)        = 1
[pid   588] <... futex resumed>)        = ?
[pid   585] +++ exited with 0 +++
[pid   584] <... exit_group resumed>)   = ?
[pid   580] +++ exited with 0 +++
[pid   590] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   588] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=580, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   584] +++ exited with 0 +++
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   300] <... openat resumed>)       = 3
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=584, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   301] close(3 <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   590] <... mmap resumed>)         = 0x20000000
[pid   301] <... close resumed>)        = 0
[pid   300] <... close resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   295] <... restart_syscall resumed>) = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 591
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 592
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 593
[pid   295] <... openat resumed>)       = 3
[pid   294] <... openat resumed>)       = 3
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   294] <... ioctl resumed>)        = 0
[pid   295] close(3 <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 594
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 595
./strace-static-x86_64: Process 593 attached
./strace-static-x86_64: Process 595 attached
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   589] <... futex resumed>)        = 0
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   590] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 591 attached
 <unfinished ...>
[pid   595] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   593] set_robust_list(0x555556c5e5e0, 24./strace-static-x86_64: Process 594 attached
 <unfinished ...>
[pid   594] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   595] <... set_robust_list resumed>) = 0
[pid   593] <... set_robust_list resumed>) = 0
[pid   591] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   593] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   595] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   591] <... set_robust_list resumed>) = 0
[pid   595] <... prctl resumed>)        = 0
[pid   594] <... set_robust_list resumed>) = 0
[pid   593] <... prctl resumed>)        = 0
[pid   591] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   595] setpgid(0, 0 <unfinished ...>
[pid   593] setpgid(0, 0 <unfinished ...>
[pid   595] <... setpgid resumed>)      = 0
[pid   593] <... setpgid resumed>)      = 0
[pid   591] <... prctl resumed>)        = 0
[pid   595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   591] setpgid(0, 0 <unfinished ...>
[pid   594] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 592 attached
) = 0
[pid   594] setpgid(0, 0 <unfinished ...>
[pid   592] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   594] <... setpgid resumed>)      = 0
[pid   592] <... set_robust_list resumed>) = 0
[pid   594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   593] <... openat resumed>)       = 3
[pid   592] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   595] <... openat resumed>)       = 3
[pid   591] <... setpgid resumed>)      = 0
[pid   595] write(3, "1000", 4 <unfinished ...>
[pid   594] <... openat resumed>)       = 3
[pid   593] write(3, "1000", 4 <unfinished ...>
[pid   592] <... prctl resumed>)        = 0
[pid   591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   595] <... write resumed>)        = 4
[pid   594] write(3, "1000", 4 <unfinished ...>
[pid   593] <... write resumed>)        = 4
[pid   592] setpgid(0, 0 <unfinished ...>
[pid   591] <... openat resumed>)       = 3
[pid   595] close(3 <unfinished ...>
[pid   594] <... write resumed>)        = 4
[pid   593] close(3 <unfinished ...>
[pid   592] <... setpgid resumed>)      = 0
[pid   591] write(3, "1000", 4 <unfinished ...>
[pid   595] <... close resumed>)        = 0
[pid   594] close(3 <unfinished ...>
[pid   593] <... close resumed>)        = 0
[pid   592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   591] <... write resumed>)        = 4
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] <... close resumed>)        = 0
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] <... openat resumed>)       = 3
[pid   591] close(3 <unfinished ...>
[pid   595] <... futex resumed>)        = 0
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   592] write(3, "1000", 4 <unfinished ...>
[pid   591] <... close resumed>)        = 0
[pid   595] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   594] <... futex resumed>)        = 0
[pid   593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   592] <... write resumed>)        = 4
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   595] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   593] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   592] close(3 <unfinished ...>
[pid   591] <... futex resumed>)        = 0
[pid   595] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   594] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   593] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   592] <... close resumed>)        = 0
[pid   591] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   595] <... mprotect resumed>)     = 0
[pid   594] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   593] <... mprotect resumed>)     = 0
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   591] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   595] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   594] <... mprotect resumed>)     = 0
[pid   593] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   592] <... futex resumed>)        = 0
[pid   591] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 597 attached
./strace-static-x86_64: Process 596 attached
 <unfinished ...>
[pid   594] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   591] <... mprotect resumed>)     = 0
[pid   590] <... madvise resumed>)      = 0
./strace-static-x86_64: Process 598 attached
[pid   597] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   596] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   595] <... clone resumed>, parent_tid=[596], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 596
[pid   593] <... clone resumed>, parent_tid=[597], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 597
[pid   592] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   591] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   597] <... set_robust_list resumed>) = 0
[pid   596] <... set_robust_list resumed>) = 0
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] <... clone resumed>, parent_tid=[598], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 598
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   589] <... futex resumed>)        = 0
./strace-static-x86_64: Process 599 attached
[pid   598] <... set_robust_list resumed>) = 0
[pid   597] memfd_create("syzkaller", 0 <unfinished ...>
[pid   595] <... futex resumed>)        = 0
[pid   593] <... futex resumed>)        = 0
[pid   591] <... clone resumed>, parent_tid=[599], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 599
[pid   599] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] <... set_robust_list resumed>) = 0
[pid   591] <... futex resumed>)        = 0
[pid   599] memfd_create("syzkaller", 0 <unfinished ...>
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   599] <... memfd_create resumed>) = 3
[pid   599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   596] memfd_create("syzkaller", 0 <unfinished ...>
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] <... mprotect resumed>)     = 0
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] <... memfd_create resumed>) = 3
[pid   596] <... memfd_create resumed>) = 3
[pid   594] <... futex resumed>)        = 0
[pid   590] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   592] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   589] <... futex resumed>)        = 0
[pid   599] <... mmap resumed>)         = 0x7efceeaa9000
[pid   599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   598] memfd_create("syzkaller", 0 <unfinished ...>
[pid   597] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   596] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   590] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   589] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 600 attached
 <unfinished ...>
[pid   598] <... memfd_create resumed>) = 3
[pid   597] <... mmap resumed>)         = 0x7efceeaa9000
[pid   596] <... mmap resumed>)         = 0x7efceeaa9000
[pid   592] <... clone resumed>, parent_tid=[600], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 600
[pid   590] <... openat resumed>)       = 5
[pid   600] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   599] <... write resumed>)        = 1048576
[pid   598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   599] munmap(0x7efceeaa9000, 1048576) = 0
[pid   600] <... set_robust_list resumed>) = 0
[pid   600] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   599] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   599] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   599] ioctl(4, LOOP_CLR_FD)       = 0
[pid   596] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   590] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] <... futex resumed>)        = 1
[pid   600] <... futex resumed>)        = 0
[pid   600] memfd_create("syzkaller", 0 <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   590] <... futex resumed>)        = 1
[pid   589] <... futex resumed>)        = 0
[pid   590] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   589] exit_group(0)               = ?
[pid   590] <... futex resumed>)        = ?
[pid   600] <... memfd_create resumed>) = 3
[pid   600] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   599] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   599] close(4)                    = 0
[pid   597] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   590] +++ exited with 0 +++
[pid   589] +++ exited with 0 +++
[pid   600] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   599] close(3 <unfinished ...>
[pid   597] <... write resumed>)        = 1048576
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=589, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   599] <... close resumed>)        = 0
[pid   596] <... write resumed>)        = 1048576
[pid   597] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3 <unfinished ...>
[pid   600] <... write resumed>)        = 1048576
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   597] <... munmap resumed>)       = 0
[pid   596] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   600] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   599] <... futex resumed>)        = 1
[pid   597] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   591] <... futex resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   597] <... openat resumed>)       = 4
[pid   596] <... munmap resumed>)       = 0
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] <... open resumed>)         = 3
[pid   597] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   596] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   591] <... futex resumed>)        = 0
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 601
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   599] <... futex resumed>)        = 0
[pid   591] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] <... open resumed>)         = 4
[pid   591] <... futex resumed>)        = 0
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   599] <... futex resumed>)        = 0
[pid   591] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   599] ftruncate(4, 33587195 <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] <... ftruncate resumed>)    = 0
[pid   591] <... futex resumed>)        = 0
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   599] <... futex resumed>)        = 0
[pid   591] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   599] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   596] <... openat resumed>)       = 4
[pid   591] <... futex resumed>)        = 0
[pid   597] <... ioctl resumed>)        = 0
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   596] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 601 attached
 <unfinished ...>
[pid   601] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   596] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   601] <... set_robust_list resumed>) = 0
[pid   601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   601] setpgid(0, 0)               = 0
[pid   601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   599] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   596] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   591] <... futex resumed>)        = 0
[pid   599] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] <... openat resumed>)       = 3
[pid   600] <... munmap resumed>)       = 0
[pid   598] <... write resumed>)        = 1048576
[pid   596] <... ioctl resumed>)        = 0
[pid   591] <... futex resumed>)        = 0
[pid   598] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   597] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   598] <... munmap resumed>)       = 0
[pid   597] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   598] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   597] close(4 <unfinished ...>
[pid   598] <... openat resumed>)       = 4
[pid   597] <... close resumed>)        = 0
[pid   598] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   597] close(3 <unfinished ...>
[pid   598] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   597] <... close resumed>)        = 0
[pid   596] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   598] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   598] <... ioctl resumed>)        = 0
[pid   597] <... futex resumed>)        = 1
[pid   596] close(4 <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] <... close resumed>)        = 0
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   596] close(3 <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   601] write(3, "1000", 4 <unfinished ...>
[pid   600] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   597] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   596] <... close resumed>)        = 0
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   601] <... write resumed>)        = 4
[pid   600] <... openat resumed>)       = 4
[pid   598] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   597] <... open resumed>)         = 3
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] close(3 <unfinished ...>
[pid   600] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   598] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] <... futex resumed>)        = 1
[pid   595] <... futex resumed>)        = 0
[pid   601] <... close resumed>)        = 0
[pid   600] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   598] close(4 <unfinished ...>
[pid   597] <... futex resumed>)        = 1
[pid   596] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   598] <... close resumed>)        = 0
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   595] <... futex resumed>)        = 0
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... ioctl resumed>)        = 0
[pid   598] close(3 <unfinished ...>
[pid   597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   596] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   601] <... futex resumed>)        = 0
[pid   598] <... close resumed>)        = 0
[pid   597] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   596] <... open resumed>)         = 3
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] <... open resumed>)         = 4
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   598] <... futex resumed>)        = 1
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] <... futex resumed>)        = 1
[pid   595] <... futex resumed>)        = 0
[pid   594] <... futex resumed>)        = 0
[pid   601] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   597] <... futex resumed>)        = 1
[pid   596] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   601] <... mprotect resumed>)     = 0
[pid   600] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   595] <... futex resumed>)        = 0
[pid   594] <... futex resumed>)        = 0
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   600] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   598] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   596] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   600] close(4 <unfinished ...>
[pid   598] <... open resumed>)         = 3
[pid   597] ftruncate(4, 33587195 <unfinished ...>
[pid   596] <... open resumed>)         = 4
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   601] <... clone resumed>, parent_tid=[602], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 602
[pid   600] <... close resumed>)        = 0
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   595] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] close(3 <unfinished ...>
[pid   598] <... futex resumed>)        = 1
[pid   596] <... futex resumed>)        = 0
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] <... futex resumed>)        = 0
[pid   601] <... futex resumed>)        = 0
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] ftruncate(4, 33587195 <unfinished ...>
[pid   595] <... futex resumed>)        = 0
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   594] <... futex resumed>)        = 0
[pid   598] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   598] <... open resumed>)         = 4
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... close resumed>)        = 0
[pid   598] <... futex resumed>)        = 1
[pid   594] <... futex resumed>)        = 0
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... futex resumed>)        = 1
[pid   598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   594] <... futex resumed>)        = 0
[pid   592] <... futex resumed>)        = 0
[pid   600] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   598] ftruncate(4, 33587195 <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... open resumed>)         = 3
[pid   597] <... ftruncate resumed>)    = 0
[pid   592] <... futex resumed>)        = 0
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   600] <... futex resumed>)        = 0
[pid   597] <... futex resumed>)        = 1
[pid   596] <... ftruncate resumed>)    = 0
[pid   593] <... futex resumed>)        = 0
[pid   592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   600] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   596] <... futex resumed>)        = 1
[pid   595] <... futex resumed>)        = 0
[pid   593] <... futex resumed>)        = 0
[pid   592] <... futex resumed>)        = 0
[pid   600] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   598] <... ftruncate resumed>)    = 0
[pid   597] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   596] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   600] <... open resumed>)         = 4
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   595] <... futex resumed>)        = 0
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] <... futex resumed>)        = 1
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   594] <... futex resumed>)        = 0
[pid   600] <... futex resumed>)        = 1
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   597] <... futex resumed>)        = 1
[pid   596] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   592] <... futex resumed>)        = 0
[pid   600] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] <... futex resumed>)        = 0
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   598] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   597] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   596] <... futex resumed>)        = 1
[pid   595] <... futex resumed>)        = 0
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   593] <... futex resumed>)        = 0
[pid   592] <... futex resumed>)        = 0
./strace-static-x86_64: Process 602 attached
[pid   600] ftruncate(4, 33587195 <unfinished ...>
[pid   598] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   597] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   596] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   600] <... ftruncate resumed>)    = 0
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   595] <... futex resumed>)        = 0
[pid   602] <... set_robust_list resumed>) = 0
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] <... futex resumed>)        = 1
[pid   596] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   594] <... futex resumed>)        = 0
[pid   602] memfd_create("syzkaller", 0 <unfinished ...>
[pid   600] <... futex resumed>)        = 1
[pid   599] <... mmap resumed>)         = 0x20000000
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   597] <... mmap resumed>)         = 0x20000000
[pid   592] <... futex resumed>)        = 0
[pid   602] <... memfd_create resumed>) = 3
[pid   600] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   600] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   599] <... futex resumed>)        = 1
[pid   598] <... futex resumed>)        = 0
[pid   597] <... futex resumed>)        = 1
[pid   594] <... futex resumed>)        = 1
[pid   593] <... futex resumed>)        = 0
[pid   592] <... futex resumed>)        = 0
[pid   591] <... futex resumed>)        = 0
[pid   602] <... mmap resumed>)         = 0x7efceeaa9000
[pid   600] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   599] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   598] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   597] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   600] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   599] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   598] <... mmap resumed>)         = 0x20000000
[pid   596] <... mmap resumed>)         = 0x20000000
[pid   593] <... futex resumed>)        = 0
[pid   591] <... futex resumed>)        = 0
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   598] <... futex resumed>)        = 1
[pid   596] <... futex resumed>)        = 1
[pid   595] <... futex resumed>)        = 0
[pid   594] <... futex resumed>)        = 0
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   596] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   595] <... futex resumed>)        = 0
[pid   594] <... futex resumed>)        = 0
[pid   598] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   596] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... write resumed>)        = 1048576
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   602] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... munmap resumed>)       = 0
[pid   600] <... futex resumed>)        = 1
[pid   592] <... futex resumed>)        = 0
[pid   602] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   600] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... openat resumed>)       = 4
[pid   600] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   592] <... futex resumed>)        = 0
[pid   602] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   600] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   602] ioctl(4, LOOP_CLR_FD)       = 0
[pid   602] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   602] close(4)                    = 0
[pid   602] close(3)                    = 0
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   601] <... futex resumed>)        = 0
[pid   602] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... open resumed>)         = 3
[pid   601] <... futex resumed>)        = 0
[pid   600] <... mmap resumed>)         = 0x20000000
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = 0
[pid   601] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   600] <... futex resumed>)        = 1
[pid   592] <... futex resumed>)        = 0
[pid   602] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   601] <... futex resumed>)        = 0
[pid   600] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   592] <... futex resumed>)        = 0
[pid   602] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... open resumed>)         = 4
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   601] <... futex resumed>)        = 0
[pid   602] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   601] <... futex resumed>)        = 0
[pid   602] ftruncate(4, 33587195 <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   597] <... madvise resumed>)      = 0
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   598] <... madvise resumed>)      = 0
[pid   596] <... madvise resumed>)      = 0
[pid   593] <... futex resumed>)        = 0
[pid   599] <... madvise resumed>)      = 0
[pid   602] <... ftruncate resumed>)    = 0
[pid   600] <... madvise resumed>)      = 0
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   593] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = 1
[pid   601] <... futex resumed>)        = 0
[pid   602] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   601] <... futex resumed>)        = 0
[pid   602] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... sendfile resumed>)     = 4
[pid   597] <... futex resumed>)        = 0
[pid   600] <... futex resumed>)        = 1
[pid   599] <... futex resumed>)        = 1
[pid   596] <... futex resumed>)        = 1
[pid   595] <... futex resumed>)        = 0
[pid   593] <... futex resumed>)        = 1
[pid   592] <... futex resumed>)        = 0
[pid   598] <... futex resumed>)        = 1
[pid   594] <... futex resumed>)        = 0
[pid   591] <... futex resumed>)        = 0
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   591] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   595] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   594] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   592] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   602] <... futex resumed>)        = 1
[pid   601] <... futex resumed>)        = 0
[pid   600] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   599] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   598] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   597] <... openat resumed>)       = 5
[pid   596] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   593] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   591] <... futex resumed>)        = 0
[pid   602] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   597] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   591] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   601] <... futex resumed>)        = 0
[pid   597] <... futex resumed>)        = 0
[pid   602] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   600] <... openat resumed>)       = 5
[pid   599] <... openat resumed>)       = 5
[pid   598] <... openat resumed>)       = 5
[pid   597] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] <... openat resumed>)       = 5
[pid   595] <... futex resumed>)        = 0
[pid   594] <... futex resumed>)        = 0
[pid   593] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   592] <... futex resumed>)        = 0
[pid   600] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   599] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   598] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   596] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   595] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   594] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   593] exit_group(0 <unfinished ...>
[pid   592] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   602] <... mmap resumed>)         = 0x20000000
[pid   600] <... futex resumed>)        = 0
[pid   599] <... futex resumed>)        = 1
[pid   598] <... futex resumed>)        = 0
[pid   596] <... futex resumed>)        = 0
[pid   595] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   594] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   593] <... exit_group resumed>)   = ?
[pid   592] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   591] <... futex resumed>)        = 0
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   599] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   598] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   596] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   595] exit_group(0 <unfinished ...>
[pid   594] exit_group(0 <unfinished ...>
[pid   591] exit_group(0 <unfinished ...>
[pid   602] <... futex resumed>)        = 1
[pid   601] <... futex resumed>)        = 0
[pid   599] <... futex resumed>)        = ?
[pid   598] <... futex resumed>)        = ?
[pid   596] <... futex resumed>)        = ?
[pid   595] <... exit_group resumed>)   = ?
[pid   594] <... exit_group resumed>)   = ?
[pid   592] exit_group(0 <unfinished ...>
[pid   591] <... exit_group resumed>)   = ?
[pid   602] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   600] <... futex resumed>)        = ?
[pid   599] +++ exited with 0 +++
[pid   598] +++ exited with 0 +++
[pid   594] +++ exited with 0 +++
[pid   592] <... exit_group resumed>)   = ?
[pid   591] +++ exited with 0 +++
[pid   601] <... futex resumed>)        = 0
[pid   596] +++ exited with 0 +++
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   595] +++ exited with 0 +++
[pid   600] +++ exited with 0 +++
[pid   597] <... futex resumed>)        = ?
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=591, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=594, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=595, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   597] +++ exited with 0 +++
[pid   593] +++ exited with 0 +++
[pid   592] +++ exited with 0 +++
[pid   301] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   301] <... restart_syscall resumed>) = 0
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=592, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=593, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   295] <... openat resumed>)       = 3
[pid   294] <... restart_syscall resumed>) = 0
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   299] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... restart_syscall resumed>) = 0
[pid   299] <... restart_syscall resumed>) = 0
[pid   295] <... ioctl resumed>)        = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   295] <... close resumed>)        = 0
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   300] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   301] close(3 <unfinished ...>
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 603
[pid   301] <... close resumed>)        = 0
[pid   300] <... ioctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] close(3 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   299] <... close resumed>)        = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 604
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 605
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 606
[pid   294] <... openat resumed>)       = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 606 attached
, child_tidptr=0x555556c5e5d0) = 607
[pid   606] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   606] setpgid(0, 0)               = 0
[pid   606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 604 attached
 <unfinished ...>
[pid   604] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   604] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   606] <... openat resumed>)       = 3
[pid   606] write(3, "1000", 4)         = 4
[pid   606] close(3)                    = 0
[pid   604] <... prctl resumed>)        = 0
[pid   604] setpgid(0, 0 <unfinished ...>
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   604] <... setpgid resumed>)      = 0
[pid   606] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   606] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   604] <... openat resumed>)       = 3
[pid   606] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   604] write(3, "1000", 4./strace-static-x86_64: Process 607 attached
 <unfinished ...>
[pid   606] <... clone resumed>, parent_tid=[608], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 608
[pid   604] <... write resumed>)        = 4
./strace-static-x86_64: Process 605 attached
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] close(3 <unfinished ...>
[pid   607] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   606] <... futex resumed>)        = 0
[pid   604] <... close resumed>)        = 0
[pid   607] <... set_robust_list resumed>) = 0
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   605] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   604] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   604] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[609], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 609
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 608 attached
 <unfinished ...>
[pid   608] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   608] memfd_create("syzkaller", 0 <unfinished ...>
[pid   607] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   605] <... set_robust_list resumed>) = 0
[pid   607] <... prctl resumed>)        = 0
[pid   605] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 603 attached
 <unfinished ...>
[pid   607] setpgid(0, 0 <unfinished ...>
[pid   605] <... prctl resumed>)        = 0
[pid   607] <... setpgid resumed>)      = 0
[pid   605] setpgid(0, 0 <unfinished ...>
[pid   603] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   608] <... memfd_create resumed>) = 3
[pid   608] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   605] <... setpgid resumed>)      = 0
[pid   603] <... set_robust_list resumed>) = 0
[pid   607] <... openat resumed>)       = 3
[pid   607] write(3, "1000", 4 <unfinished ...>
[pid   605] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   603] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   607] <... write resumed>)        = 4
[pid   607] close(3 <unfinished ...>
[pid   605] <... openat resumed>)       = 3
[pid   603] <... prctl resumed>)        = 0
[pid   607] <... close resumed>)        = 0
[pid   605] write(3, "1000", 4 <unfinished ...>
[pid   603] setpgid(0, 0 <unfinished ...>
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... write resumed>)        = 4
[pid   603] <... setpgid resumed>)      = 0
[pid   607] <... futex resumed>)        = 0
[pid   607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   605] close(3 <unfinished ...>
[pid   603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   607] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   605] <... close resumed>)        = 0
[pid   602] <... madvise resumed>)      = 0
[pid   607] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... openat resumed>)       = 3
[pid   607] <... mprotect resumed>)     = 0
[pid   605] <... futex resumed>)        = 0
[pid   603] write(3, "1000", 4 <unfinished ...>
[pid   607] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   605] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   603] <... write resumed>)        = 4
[pid   605] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   603] close(3 <unfinished ...>
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   607] <... clone resumed>, parent_tid=[610], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 610
[pid   605] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   608] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... mprotect resumed>)     = 0
[pid   603] <... close resumed>)        = 0
[pid   602] <... futex resumed>)        = 1
[pid   601] <... futex resumed>)        = 0
./strace-static-x86_64: Process 610 attached
./strace-static-x86_64: Process 609 attached
[pid   607] <... futex resumed>)        = 0
[pid   601] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   605] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   601] <... futex resumed>)        = 0
[pid   610] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   609] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   602] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   601] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] <... set_robust_list resumed>) = 0
[pid   609] <... set_robust_list resumed>) = 0
[pid   605] <... clone resumed>, parent_tid=[611], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 611
[pid   603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   602] <... openat resumed>)       = 5
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] memfd_create("syzkaller", 0 <unfinished ...>
[pid   609] memfd_create("syzkaller", 0 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   603] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   602] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... memfd_create resumed>) = 3
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   603] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   601] <... futex resumed>)        = 0
[pid   602] <... futex resumed>)        = 1
[pid   609] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   603] <... mprotect resumed>)     = 0
[pid   601] exit_group(0 <unfinished ...>
[pid   602] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   609] <... mmap resumed>)         = 0x7efceeaa9000
[pid   603] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   602] <... futex resumed>)        = ?
[pid   601] <... exit_group resumed>)   = ?
[pid   603] <... clone resumed>, parent_tid=[612], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 612
[pid   608] <... write resumed>)        = 1048576
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 612 attached
 <unfinished ...>
[pid   612] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   612] memfd_create("syzkaller", 0) = 3
[pid   612] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   608] munmap(0x7efceeaa9000, 1048576) = 0
[pid   602] +++ exited with 0 +++
[pid   601] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=601, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   293] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 611 attached
 <unfinished ...>
[pid   611] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   611] memfd_create("syzkaller", 0 <unfinished ...>
[pid   608] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   608] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   611] <... memfd_create resumed>) = 3
[pid   608] ioctl(4, LOOP_CLR_FD)       = 0
[pid   611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   293] <... restart_syscall resumed>) = 0
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   610] <... memfd_create resumed>) = 3
[pid   293] <... openat resumed>)       = 3
[pid   609] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 613
[pid   608] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   608] close(4)                    = 0
[pid   608] close(3 <unfinished ...>
[pid   610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   612] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   610] <... mmap resumed>)         = 0x7efceeaa9000
[pid   609] <... write resumed>)        = 1048576
[pid   608] <... close resumed>)        = 0
./strace-static-x86_64: Process 613 attached
[pid   613] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   613] setpgid(0, 0)               = 0
[pid   613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] <... futex resumed>)        = 0
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   609] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   608] <... futex resumed>)        = 1
[pid   613] write(3, "1000", 4 <unfinished ...>
[pid   608] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   613] <... write resumed>)        = 4
[pid   609] <... munmap resumed>)       = 0
[pid   608] <... open resumed>)         = 3
[pid   613] close(3 <unfinished ...>
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... close resumed>)        = 0
[pid   608] <... futex resumed>)        = 1
[pid   606] <... futex resumed>)        = 0
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   608] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... futex resumed>)        = 0
[pid   609] <... openat resumed>)       = 4
[pid   608] <... open resumed>)         = 4
[pid   606] <... futex resumed>)        = 0
[pid   613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   609] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   613] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   609] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   608] <... futex resumed>)        = 0
[pid   606] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   613] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   612] <... write resumed>)        = 1048576
[pid   610] <... write resumed>)        = 1048576
[pid   609] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   608] ftruncate(4, 33587195 <unfinished ...>
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... mprotect resumed>)     = 0
[pid   611] <... write resumed>)        = 1048576
[pid   610] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   609] <... ioctl resumed>)        = 0
[pid   608] <... ftruncate resumed>)    = 0
[pid   606] <... futex resumed>)        = 0
[pid   613] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   610] <... munmap resumed>)       = 0
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 614 attached
 <unfinished ...>
[pid   610] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   608] <... futex resumed>)        = 0
[pid   606] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   613] <... clone resumed>, parent_tid=[614], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 614
[pid   608] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   614] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] <... openat resumed>)       = 4
[pid   606] <... futex resumed>)        = 0
[pid   613] <... futex resumed>)        = 0
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] <... set_robust_list resumed>) = 0
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   610] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   614] memfd_create("syzkaller", 0 <unfinished ...>
[pid   610] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   609] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   608] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   611] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   614] <... memfd_create resumed>) = 3
[pid   611] <... munmap resumed>)       = 0
[pid   610] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   609] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   609] close(4 <unfinished ...>
[pid   610] <... ioctl resumed>)        = 0
[pid   606] <... futex resumed>)        = 0
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   611] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   611] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   609] <... close resumed>)        = 0
[pid   611] ioctl(4, LOOP_CLR_FD)       = 0
[pid   612] munmap(0x7efceeaa9000, 1048576) = 0
[pid   612] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   612] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   612] ioctl(4, LOOP_CLR_FD)       = 0
[pid   614] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   611] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   611] close(4)                    = 0
[pid   611] close(3 <unfinished ...>
[pid   612] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   611] <... close resumed>)        = 0
[pid   612] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   612] close(4 <unfinished ...>
[pid   614] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   612] <... close resumed>)        = 0
[pid   609] close(3 <unfinished ...>
[pid   612] close(3 <unfinished ...>
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   611] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   609] <... close resumed>)        = 0
[pid   605] <... futex resumed>)        = 0
[pid   611] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   605] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   611] <... open resumed>)         = 3
[pid   609] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   608] <... futex resumed>)        = 1
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   604] <... futex resumed>)        = 0
[pid   611] <... futex resumed>)        = 1
[pid   609] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   608] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   611] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   609] <... open resumed>)         = 3
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... close resumed>)        = 0
[pid   611] <... open resumed>)         = 4
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   612] <... futex resumed>)        = 1
[pid   611] <... futex resumed>)        = 0
[pid   609] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   605] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   612] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   611] ftruncate(4, 33587195 <unfinished ...>
[pid   610] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   609] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... open resumed>)         = 3
[pid   610] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   609] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] close(4 <unfinished ...>
[pid   609] <... open resumed>)         = 4
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   612] <... futex resumed>)        = 0
[pid   610] <... close resumed>)        = 0
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   612] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   610] close(3 <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   604] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... open resumed>)         = 4
[pid   609] ftruncate(4, 33587195 <unfinished ...>
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] <... write resumed>)        = 1048576
[pid   612] <... futex resumed>)        = 0
[pid   610] <... close resumed>)        = 0
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   603] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   612] ftruncate(4, 33587195 <unfinished ...>
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] <... ftruncate resumed>)    = 0
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   611] <... futex resumed>)        = 1
[pid   605] <... futex resumed>)        = 0
[pid   611] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   605] <... futex resumed>)        = 0
[pid   611] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   612] <... ftruncate resumed>)    = 0
[pid   611] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   609] <... ftruncate resumed>)    = 0
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... futex resumed>)        = 1
[pid   611] <... futex resumed>)        = 1
[pid   605] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   609] <... futex resumed>)        = 1
[pid   612] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   611] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   609] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   611] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   609] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   605] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   612] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   611] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] <... futex resumed>)        = 1
[pid   612] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   609] <... futex resumed>)        = 0
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   609] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... futex resumed>)        = 1
[pid   610] <... open resumed>)         = 3
[pid   609] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   607] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   614] <... munmap resumed>)       = 0
[pid   612] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   610] <... futex resumed>)        = 0
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] <... openat resumed>)       = 4
[pid   610] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   614] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   610] <... open resumed>)         = 4
[pid   614] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   614] <... ioctl resumed>)        = 0
[pid   610] <... futex resumed>)        = 1
[pid   607] <... futex resumed>)        = 0
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] ftruncate(4, 33587195 <unfinished ...>
[pid   614] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   614] close(4)                    = 0
[pid   614] close(3)                    = 0
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... futex resumed>)        = 0
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] <... futex resumed>)        = 1
[pid   614] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... futex resumed>)        = 0
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   614] <... futex resumed>)        = 1
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   613] <... futex resumed>)        = 0
[pid   614] ftruncate(4, 33587195 <unfinished ...>
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   610] <... ftruncate resumed>)    = 0
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   607] <... futex resumed>)        = 0
[pid   610] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   607] <... futex resumed>)        = 0
[pid   610] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] <... ftruncate resumed>)    = 0
[pid   612] <... mmap resumed>)         = 0x20000000
[pid   611] <... mmap resumed>)         = 0x20000000
[pid   610] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   608] <... mmap resumed>)         = 0x20000000
[pid   606] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   614] <... futex resumed>)        = 1
[pid   613] <... futex resumed>)        = 0
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] <... futex resumed>)        = 0
[pid   614] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] <... futex resumed>)        = 1
[pid   610] <... futex resumed>)        = 1
[pid   608] <... futex resumed>)        = 0
[pid   607] <... futex resumed>)        = 0
[pid   606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   614] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   613] <... futex resumed>)        = 0
[pid   606] <... mmap resumed>)         = 0x7efceeb88000
[pid   614] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   606] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   614] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   611] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   610] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   608] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] <... mprotect resumed>)     = 0
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   614] <... futex resumed>)        = 1
[pid   613] <... futex resumed>)        = 0
[pid   610] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   607] <... futex resumed>)        = 0
[pid   605] <... futex resumed>)        = 0
[pid   614] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   606] <... clone resumed>, parent_tid=[615], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 615
[pid   614] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   613] <... futex resumed>)        = 0
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   606] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 615 attached
 <unfinished ...>
[pid   614] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... mmap resumed>)         = 0x20000000
[pid   606] <... futex resumed>)        = 0
[pid   614] <... mmap resumed>)         = 0x20000000
[pid   612] <... futex resumed>)        = 1
[pid   610] <... mmap resumed>)         = 0x20000000
[pid   606] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   612] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   609] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... futex resumed>)        = 0
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   613] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 1
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] <... futex resumed>)        = 1
[pid   614] <... futex resumed>)        = 1
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   615] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   612] <... futex resumed>)        = 0
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... futex resumed>)        = 0
[pid   612] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   609] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   610] <... futex resumed>)        = 1
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   615] <... set_robust_list resumed>) = 0
[pid   615] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   614] <... madvise resumed>)      = 0
[pid   612] <... madvise resumed>)      = 0
[pid   611] <... madvise resumed>)      = 0
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   613] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... madvise resumed>)      = 0
[pid   615] <... madvise resumed>)      = 0
[pid   615] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   614] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   613] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... futex resumed>)        = 1
[pid   611] <... futex resumed>)        = 1
[pid   610] <... madvise resumed>)      = 0
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   603] <... futex resumed>)        = 0
[pid   615] <... futex resumed>)        = 1
[pid   614] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   613] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] <... futex resumed>)        = 1
[pid   606] <... futex resumed>)        = 0
[pid   605] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   615] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   614] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   613] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   612] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   610] <... futex resumed>)        = 1
[pid   609] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   606] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   604] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   614] <... openat resumed>)       = 5
[pid   612] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   610] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   609] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   608] <... futex resumed>)        = 0
[pid   607] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   606] <... futex resumed>)        = 1
[pid   605] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] <... futex resumed>)        = 0
[pid   603] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   612] <... openat resumed>)       = 5
[pid   609] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   608] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   607] <... futex resumed>)        = 0
[pid   606] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   604] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] <... futex resumed>)        = 1
[pid   613] <... futex resumed>)        = 0
[pid   612] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   611] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   609] <... openat resumed>)       = 5
[pid   608] <... openat resumed>)       = 5
[pid   607] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   614] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   613] exit_group(0 <unfinished ...>
[pid   612] <... futex resumed>)        = 1
[pid   611] <... openat resumed>)       = 5
[pid   609] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   608] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   603] <... futex resumed>)        = 0
[pid   614] <... futex resumed>)        = ?
[pid   613] <... exit_group resumed>)   = ?
[pid   612] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   611] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   610] <... openat resumed>)       = 5
[pid   609] <... futex resumed>)        = 1
[pid   608] <... futex resumed>)        = 1
[pid   606] <... futex resumed>)        = 0
[pid   604] <... futex resumed>)        = 0
[pid   603] exit_group(0 <unfinished ...>
[pid   614] +++ exited with 0 +++
[pid   613] +++ exited with 0 +++
[pid   612] <... futex resumed>)        = ?
[pid   611] <... futex resumed>)        = 1
[pid   610] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   609] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   608] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   606] exit_group(0 <unfinished ...>
[pid   605] <... futex resumed>)        = 0
[pid   604] exit_group(0 <unfinished ...>
[pid   603] <... exit_group resumed>)   = ?
[pid   615] <... futex resumed>)        = ?
[pid   612] +++ exited with 0 +++
[pid   611] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   608] <... futex resumed>)        = ?
[pid   606] <... exit_group resumed>)   = ?
[pid   605] exit_group(0 <unfinished ...>
[pid   615] +++ exited with 0 +++
[pid   610] <... futex resumed>)        = 1
[pid   610] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   611] <... futex resumed>)        = ?
[pid   607] <... futex resumed>)        = 0
[pid   605] <... exit_group resumed>)   = ?
[pid   604] <... exit_group resumed>)   = ?
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=613, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   611] +++ exited with 0 +++
[pid   603] +++ exited with 0 +++
[pid   607] exit_group(0 <unfinished ...>
[pid   610] <... futex resumed>)        = ?
[pid   609] <... futex resumed>)        = ?
[pid   608] +++ exited with 0 +++
[pid   607] <... exit_group resumed>)   = ?
[pid   606] +++ exited with 0 +++
[pid   605] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=605, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=606, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   299] <... openat resumed>)       = 3
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=603, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   609] +++ exited with 0 +++
[pid   604] +++ exited with 0 +++
[pid   300] <... ioctl resumed>)        = 0
[pid   299] <... ioctl resumed>)        = 0
[pid   295] <... restart_syscall resumed>) = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=604, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] close(3 <unfinished ...>
[pid   299] close(3 <unfinished ...>
[pid   610] +++ exited with 0 +++
[pid   607] +++ exited with 0 +++
[pid   300] <... close resumed>)        = 0
[pid   299] <... close resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 617 attached
./strace-static-x86_64: Process 616 attached
 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   616] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 616
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 617
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=607, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   617] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   616] <... set_robust_list resumed>) = 0
[pid   295] <... openat resumed>)       = 3
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   617] <... set_robust_list resumed>) = 0
[pid   616] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   616] <... prctl resumed>)        = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   294] <... restart_syscall resumed>) = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   616] setpgid(0, 0 <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   295] close(3 <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   617] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   616] <... setpgid resumed>)      = 0
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   293] close(3 <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   617] <... prctl resumed>)        = 0
[pid   616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   301] close(3 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   617] setpgid(0, 0 <unfinished ...>
[pid   616] <... openat resumed>)       = 3
[pid   301] <... close resumed>)        = 0
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 618
[pid   294] <... openat resumed>)       = 3
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   617] <... setpgid resumed>)      = 0
[pid   616] write(3, "1000", 4 <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   616] <... write resumed>)        = 4
[pid   294] <... ioctl resumed>)        = 0
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 619
[pid   617] <... openat resumed>)       = 3
[pid   616] close(3 <unfinished ...>
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 620
[pid   294] close(3 <unfinished ...>
[pid   617] write(3, "1000", 4 <unfinished ...>
[pid   616] <... close resumed>)        = 0
[pid   294] <... close resumed>)        = 0
[pid   617] <... write resumed>)        = 4
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   617] close(3 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   617] <... close resumed>)        = 0
[pid   616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 621
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   617] <... futex resumed>)        = 0
[pid   616] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   616] <... mprotect resumed>)     = 0
[pid   617] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   616] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   617] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   616] <... clone resumed>, parent_tid=[622], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 622
[pid   617] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   617] <... clone resumed>, parent_tid=[623], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 623
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 620 attached
 <unfinished ...>
[pid   620] set_robust_list(0x555556c5e5e0, 24) = 0
./strace-static-x86_64: Process 621 attached
./strace-static-x86_64: Process 623 attached
[pid   621] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   623] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   621] <... set_robust_list resumed>) = 0
[pid   623] <... set_robust_list resumed>) = 0
[pid   621] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 619 attached
./strace-static-x86_64: Process 618 attached
 <unfinished ...>
[pid   623] memfd_create("syzkaller", 0 <unfinished ...>
[pid   621] <... prctl resumed>)        = 0
./strace-static-x86_64: Process 622 attached
[pid   620] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   622] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   621] setpgid(0, 0 <unfinished ...>
[pid   623] <... memfd_create resumed>) = 3
[pid   622] memfd_create("syzkaller", 0 <unfinished ...>
[pid   621] <... setpgid resumed>)      = 0
[pid   620] <... prctl resumed>)        = 0
[pid   619] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   618] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   622] <... memfd_create resumed>) = 3
[pid   621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   620] setpgid(0, 0 <unfinished ...>
[pid   619] <... set_robust_list resumed>) = 0
[pid   618] <... set_robust_list resumed>) = 0
[pid   622] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   620] <... setpgid resumed>)      = 0
[pid   622] <... mmap resumed>)         = 0x7efceeaa9000
[pid   620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   620] write(3, "1000", 4)         = 4
[pid   620] close(3)                    = 0
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   620] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   620] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   623] <... mmap resumed>)         = 0x7efceeaa9000
[pid   621] <... openat resumed>)       = 3
[pid   620] <... clone resumed>, parent_tid=[624], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 624
[pid   621] write(3, "1000", 4 <unfinished ...>
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   621] <... write resumed>)        = 4
[pid   620] <... futex resumed>)        = 0
[pid   619] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   618] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   621] close(3 <unfinished ...>
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   619] <... prctl resumed>)        = 0
[pid   618] <... prctl resumed>)        = 0
[pid   621] <... close resumed>)        = 0
[pid   619] setpgid(0, 0 <unfinished ...>
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   619] <... setpgid resumed>)      = 0
[pid   618] setpgid(0, 0 <unfinished ...>
[pid   621] <... futex resumed>)        = 0
[pid   619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   618] <... setpgid resumed>)      = 0
[pid   621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   619] <... openat resumed>)       = 3
[pid   618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   621] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   621] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   619] write(3, "1000", 4 <unfinished ...>
[pid   618] <... openat resumed>)       = 3
[pid   622] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   621] <... mprotect resumed>)     = 0
[pid   619] <... write resumed>)        = 4
[pid   618] write(3, "1000", 4 <unfinished ...>
[pid   621] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   619] close(3 <unfinished ...>
[pid   618] <... write resumed>)        = 4
[pid   619] <... close resumed>)        = 0
[pid   618] close(3 <unfinished ...>
[pid   621] <... clone resumed>, parent_tid=[625], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 625
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] <... close resumed>)        = 0
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   621] <... futex resumed>)        = 0
[pid   619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   618] <... futex resumed>)        = 0
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   619] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   619] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   618] <... mmap resumed>)         = 0x7efcf6ea9000
./strace-static-x86_64: Process 624 attached
[pid   619] <... mprotect resumed>)     = 0
[pid   618] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   624] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   619] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   618] <... mprotect resumed>)     = 0
./strace-static-x86_64: Process 625 attached
[pid   624] <... set_robust_list resumed>) = 0
[pid   623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   622] <... write resumed>)        = 1048576
[pid   618] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   624] memfd_create("syzkaller", 0 <unfinished ...>
[pid   619] <... clone resumed>, parent_tid=[626], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 626
[pid   624] <... memfd_create resumed>) = 3
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] <... clone resumed>, parent_tid=[627], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 627
[pid   624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   618] <... futex resumed>)        = 0
[pid   624] <... mmap resumed>)         = 0x7efceeaa9000
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 627 attached
./strace-static-x86_64: Process 626 attached
 <unfinished ...>
[pid   625] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   623] <... write resumed>)        = 1048576
[pid   622] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   627] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   626] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   625] <... set_robust_list resumed>) = 0
[pid   623] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   622] <... munmap resumed>)       = 0
[pid   627] <... set_robust_list resumed>) = 0
[pid   626] <... set_robust_list resumed>) = 0
[pid   625] memfd_create("syzkaller", 0 <unfinished ...>
[pid   623] <... munmap resumed>)       = 0
[pid   622] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   627] memfd_create("syzkaller", 0 <unfinished ...>
[pid   626] memfd_create("syzkaller", 0 <unfinished ...>
[pid   625] <... memfd_create resumed>) = 3
[pid   623] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   622] <... openat resumed>)       = 4
[pid   627] <... memfd_create resumed>) = 3
[pid   626] <... memfd_create resumed>) = 3
[pid   625] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   623] <... openat resumed>)       = 4
[pid   622] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   627] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   625] <... mmap resumed>)         = 0x7efceeaa9000
[pid   623] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   627] <... mmap resumed>)         = 0x7efceeaa9000
[pid   626] <... mmap resumed>)         = 0x7efceeaa9000
[pid   624] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   622] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   625] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   624] <... write resumed>)        = 1048576
[pid   623] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   623] ioctl(4, LOOP_CLR_FD)       = 0
[pid   624] munmap(0x7efceeaa9000, 1048576) = 0
[pid   624] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   624] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   623] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   623] close(4)                    = 0
[pid   624] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   622] ioctl(4, LOOP_CLR_FD)       = 0
[pid   627] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   622] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   622] close(4)                    = 0
[pid   622] close(3 <unfinished ...>
[pid   623] close(3 <unfinished ...>
[pid   624] <... ioctl resumed>)        = 0
[pid   623] <... close resumed>)        = 0
[pid   622] <... close resumed>)        = 0
[pid   624] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   624] close(4)                    = 0
[pid   624] close(3)                    = 0
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   617] <... futex resumed>)        = 0
[pid   627] <... write resumed>)        = 1048576
[pid   623] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] <... open resumed>)         = 3
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   617] <... futex resumed>)        = 0
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] <... futex resumed>)        = 1
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   622] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   617] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] <... futex resumed>)        = 0
[pid   622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   622] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   617] <... futex resumed>)        = 0
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   623] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   622] <... open resumed>)         = 3
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   623] <... open resumed>)         = 4
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] <... futex resumed>)        = 1
[pid   616] <... futex resumed>)        = 0
[pid   624] <... futex resumed>)        = 1
[pid   622] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] <... futex resumed>)        = 1
[pid   617] <... futex resumed>)        = 0
[pid   624] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   622] <... open resumed>)         = 4
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   624] <... open resumed>)         = 3
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] <... futex resumed>)        = 0
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   616] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   627] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   623] ftruncate(4, 33587195 <unfinished ...>
[pid   627] <... munmap resumed>)       = 0
[pid   624] <... futex resumed>)        = 0
[pid   623] <... ftruncate resumed>)    = 0
[pid   622] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   620] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   625] <... write resumed>)        = 1048576
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   627] <... openat resumed>)       = 4
[pid   625] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   623] <... futex resumed>)        = 1
[pid   622] ftruncate(4, 33587195 <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   625] <... munmap resumed>)       = 0
[pid   624] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   623] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   622] <... ftruncate resumed>)    = 0
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   625] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   624] <... open resumed>)         = 4
[pid   623] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   617] <... futex resumed>)        = 0
[pid   627] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   625] <... openat resumed>)       = 4
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   622] <... futex resumed>)        = 1
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   627] <... ioctl resumed>)        = 0
[pid   624] <... futex resumed>)        = 1
[pid   622] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   622] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   624] ftruncate(4, 33587195 <unfinished ...>
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   627] close(4)                    = 0
[pid   627] close(3)                    = 0
[pid   626] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   625] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   624] <... ftruncate resumed>)    = 0
[pid   623] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   622] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   625] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = 1
[pid   625] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   624] <... futex resumed>)        = 1
[pid   623] <... futex resumed>)        = 1
[pid   622] <... futex resumed>)        = 1
[pid   620] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   616] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   625] <... ioctl resumed>)        = 0
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   623] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   622] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   623] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   620] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   616] <... futex resumed>)        = 0
[pid   627] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   624] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   623] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   622] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] <... open resumed>)         = 3
[pid   624] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   625] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = 1
[pid   625] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   624] <... futex resumed>)        = 1
[pid   620] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   625] close(4 <unfinished ...>
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   625] <... close resumed>)        = 0
[pid   624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   620] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 0
[pid   627] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   625] close(3 <unfinished ...>
[pid   624] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] <... open resumed>)         = 4
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   618] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   625] <... close resumed>)        = 0
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] <... futex resumed>)        = 0
[pid   627] ftruncate(4, 33587195 <unfinished ...>
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   625] <... futex resumed>)        = 1
[pid   621] <... futex resumed>)        = 0
[pid   627] <... ftruncate resumed>)    = 0
[pid   626] <... write resumed>)        = 1048576
[pid   625] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   626] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   625] <... open resumed>)         = 3
[pid   621] <... futex resumed>)        = 0
[pid   627] <... futex resumed>)        = 1
[pid   626] <... munmap resumed>)       = 0
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   624] <... mmap resumed>)         = 0x20000000
[pid   623] <... mmap resumed>)         = 0x20000000
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   618] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   626] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   625] <... futex resumed>)        = 0
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   621] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   626] <... openat resumed>)       = 4
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   624] <... futex resumed>)        = 1
[pid   623] <... futex resumed>)        = 1
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   627] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   626] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   625] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   623] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   621] <... futex resumed>)        = 0
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   626] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   625] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   623] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   620] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   626] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   625] <... open resumed>)         = 4
[pid   624] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   623] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] <... futex resumed>)        = 1
[pid   626] <... ioctl resumed>)        = 0
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] <... mmap resumed>)         = 0x20000000
[pid   618] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   625] <... futex resumed>)        = 1
[pid   621] <... futex resumed>)        = 0
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] <... futex resumed>)        = 0
[pid   627] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   625] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   621] <... futex resumed>)        = 0
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   625] ftruncate(4, 33587195 <unfinished ...>
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   626] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   626] close(4 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   626] <... close resumed>)        = 0
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   622] <... futex resumed>)        = 1
[pid   622] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   626] close(3)                    = 0
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   619] <... futex resumed>)        = 0
[pid   626] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   619] <... futex resumed>)        = 0
[pid   626] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   626] <... open resumed>)         = 3
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   626] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   626] <... futex resumed>)        = 0
[pid   619] <... futex resumed>)        = 1
[pid   626] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   626] <... open resumed>)         = 4
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   619] <... futex resumed>)        = 0
[pid   626] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   619] <... futex resumed>)        = 0
[pid   626] ftruncate(4, 33587195 <unfinished ...>
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   623] <... madvise resumed>)      = 0
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   623] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   617] <... futex resumed>)        = 0
[pid   617] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   617] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   623] <... futex resumed>)        = 0
[pid   624] <... madvise resumed>)      = 0
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   620] <... futex resumed>)        = 0
[pid   625] <... ftruncate resumed>)    = 0
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   620] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   624] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   620] <... futex resumed>)        = 0
[pid   625] <... futex resumed>)        = 1
[pid   621] <... futex resumed>)        = 0
[pid   620] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   625] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   621] <... futex resumed>)        = 0
[pid   625] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   623] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   622] <... madvise resumed>)      = 0
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   616] <... futex resumed>)        = 0
[pid   626] <... ftruncate resumed>)    = 0
[pid   624] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   622] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   616] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   624] <... openat resumed>)       = 5
[pid   622] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   616] <... futex resumed>)        = 0
[pid   624] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   616] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   624] <... futex resumed>)        = 1
[pid   622] <... openat resumed>)       = 5
[pid   620] <... futex resumed>)        = 0
[pid   626] <... futex resumed>)        = 1
[pid   624] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   622] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   620] exit_group(0 <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   626] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   624] <... futex resumed>)        = ?
[pid   622] <... futex resumed>)        = 1
[pid   620] <... exit_group resumed>)   = ?
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   616] <... futex resumed>)        = 0
[pid   626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   625] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   624] +++ exited with 0 +++
[pid   623] <... openat resumed>)       = 5
[pid   622] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   620] +++ exited with 0 +++
[pid   619] <... futex resumed>)        = 0
[pid   616] exit_group(0 <unfinished ...>
[pid   626] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   623] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   622] <... futex resumed>)        = ?
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   616] <... exit_group resumed>)   = ?
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=620, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   625] <... futex resumed>)        = 1
[pid   623] <... futex resumed>)        = 1
[pid   622] +++ exited with 0 +++
[pid   621] <... futex resumed>)        = 0
[pid   617] <... futex resumed>)        = 0
[pid   626] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   625] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   621] <... futex resumed>)        = 0
[pid   617] exit_group(0 <unfinished ...>
[pid   616] +++ exited with 0 +++
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   626] <... futex resumed>)        = 1
[pid   625] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   617] <... exit_group resumed>)   = ?
[pid   301] <... openat resumed>)       = 3
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=616, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   626] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   626] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   619] <... futex resumed>)        = 0
[pid   301] <... ioctl resumed>)        = 0
[pid   626] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   301] close(3 <unfinished ...>
[pid   300] <... restart_syscall resumed>) = 0
[pid   623] +++ exited with 0 +++
[pid   617] +++ exited with 0 +++
[pid   301] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=617, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   300] <... openat resumed>)       = 3
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 628
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   300] <... ioctl resumed>)        = 0
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 629
[pid   299] <... close resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 630
./strace-static-x86_64: Process 628 attached
[pid   628] set_robust_list(0x555556c5e5e0, 24./strace-static-x86_64: Process 629 attached
) = 0
[pid   629] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   628] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   629] <... set_robust_list resumed>) = 0
[pid   629] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   628] <... prctl resumed>)        = 0
[pid   628] setpgid(0, 0)               = 0
[pid   628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   629] <... prctl resumed>)        = 0
[pid   629] setpgid(0, 0)               = 0
[pid   629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   628] <... openat resumed>)       = 3
[pid   629] <... openat resumed>)       = 3
[pid   628] write(3, "1000", 4)         = 4
[pid   628] close(3)                    = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] write(3, "1000", 4 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   629] <... write resumed>)        = 4
[pid   628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   629] close(3)                    = 0
[pid   628] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   629] <... futex resumed>)        = 0
[pid   628] <... mprotect resumed>)     = 0
[pid   629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   628] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   629] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   629] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[632], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 632
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... clone resumed>, parent_tid=[631], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 631
[pid   629] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   618] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   618] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   618] <... mmap resumed>)         = 0x7efceeb88000
[pid   618] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   618] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[633], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 633
[pid   618] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   618] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] <... mmap resumed>)         = 0x20000000
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   626] <... mmap resumed>)         = 0x20000000
./strace-static-x86_64: Process 632 attached
[pid   632] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   632] memfd_create("syzkaller", 0 <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   626] <... futex resumed>)        = 1
[pid   626] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   625] <... mmap resumed>)         = 0x20000000
[pid   632] <... memfd_create resumed>) = 3
[pid   632] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 631 attached
[pid   631] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   631] memfd_create("syzkaller", 0) = 3
[pid   631] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 633 attached
./strace-static-x86_64: Process 630 attached
[pid   631] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   633] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   632] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   630] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   625] <... futex resumed>)        = 1
[pid   621] <... futex resumed>)        = 0
[pid   633] <... set_robust_list resumed>) = 0
[pid   630] <... set_robust_list resumed>) = 0
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   630] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   625] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   621] <... futex resumed>)        = 0
[pid   633] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   630] <... prctl resumed>)        = 0
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   625] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   630] setpgid(0, 0)               = 0
[pid   630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   630] write(3, "1000", 4)         = 4
[pid   630] close(3)                    = 0
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   630] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   630] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[634], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 634
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   631] <... write resumed>)        = 1048576
[pid   632] <... write resumed>)        = 1048576
[pid   632] munmap(0x7efceeaa9000, 1048576) = 0
[pid   632] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   633] <... madvise resumed>)      = 0
[pid   632] <... openat resumed>)       = 4
[pid   625] <... madvise resumed>)      = 0
[pid   632] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   632] ioctl(4, LOOP_CLR_FD)       = 0
[pid   631] munmap(0x7efceeaa9000, 1048576) = 0
[pid   631] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   631] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   633] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   631] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   631] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 634 attached
[pid   634] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   634] memfd_create("syzkaller", 0) = 3
[pid   634] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   632] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   632] close(4)                    = 0
[pid   632] close(3 <unfinished ...>
[pid   631] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   631] close(4)                    = 0
[pid   631] close(3)                    = 0
[pid   632] <... close resumed>)        = 0
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] <... futex resumed>)        = 0
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   632] <... futex resumed>)        = 1
[pid   632] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] <... futex resumed>)        = 0
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   632] <... futex resumed>)        = 1
[pid   632] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] <... futex resumed>)        = 0
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   632] <... futex resumed>)        = 1
[pid   632] ftruncate(4, 33587195)      = 0
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   631] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] <... futex resumed>)        = 0
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   632] <... futex resumed>)        = 1
[pid   631] <... futex resumed>)        = 1
[pid   632] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   631] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   625] <... futex resumed>)        = 1
[pid   621] <... futex resumed>)        = 0
[pid   633] <... futex resumed>)        = 1
[pid   618] <... futex resumed>)        = 0
[pid   618] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 1
[pid   633] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   627] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   625] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   621] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   618] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   627] <... openat resumed>)       = 5
[pid   625] <... openat resumed>)       = 5
[pid   627] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   625] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   627] <... futex resumed>)        = 1
[pid   625] <... futex resumed>)        = 0
[pid   618] <... futex resumed>)        = 0
[pid   627] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   618] exit_group(0 <unfinished ...>
[pid   627] <... futex resumed>)        = ?
[pid   618] <... exit_group resumed>)   = ?
[pid   627] +++ exited with 0 +++
[pid   625] <... futex resumed>)        = 0
[pid   625] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] <... open resumed>)         = 4
[pid   633] <... futex resumed>)        = 4
[pid   621] <... futex resumed>)        = 1
[pid   621] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   631] ftruncate(4, 33587195 <unfinished ...>
[pid   634] <... mmap resumed>)         = 0x7efceeaa9000
[pid   633] +++ exited with 0 +++
[pid   618] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=618, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   621] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   632] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   621] exit_group(0 <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   625] <... futex resumed>)        = ?
[pid   621] <... exit_group resumed>)   = ?
[pid   625] +++ exited with 0 +++
[pid   295] <... openat resumed>)       = 3
[pid   631] <... ftruncate resumed>)    = 0
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   631] sendfile(3, 4, NULL, 4)     = -1 EINVAL (Invalid argument)
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   631] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   634] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   632] <... futex resumed>)        = 1
[pid   629] <... futex resumed>)        = 0
[pid   626] <... madvise resumed>)      = 0
[pid   621] +++ exited with 0 +++
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] <... write resumed>)        = 1048576
[pid   632] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=621, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   619] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   619] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   626] <... futex resumed>)        = 1
[pid   295] close(3 <unfinished ...>
[pid   619] <... futex resumed>)        = 0
[pid   626] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   619] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=44000000} <unfinished ...>
[pid   634] munmap(0x7efceeaa9000, 1048576) = 0
[pid   634] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4
[pid   634] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   634] ioctl(4, LOOP_CLR_FD)       = 0
[pid   631] <... mmap resumed>)         = 0x20000000
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   631] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   634] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   634] close(4)                    = 0
[pid   634] close(3)                    = 0
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   630] <... futex resumed>)        = 0
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   626] <... openat resumed>)       = 5
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   626] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   626] <... futex resumed>)        = 1
[pid   619] <... futex resumed>)        = 0
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 635
[pid   626] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   619] exit_group(0 <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   626] <... futex resumed>)        = ?
[pid   619] <... exit_group resumed>)   = ?
[pid   294] <... ioctl resumed>)        = 0
[pid   626] +++ exited with 0 +++
[pid   634] <... open resumed>)         = 3
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   634] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 635 attached
 <unfinished ...>
[pid   635] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   635] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   619] +++ exited with 0 +++
[pid   630] <... futex resumed>)        = 0
[pid   294] close(3 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=619, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   630] <... futex resumed>)        = 1
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] <... futex resumed>)        = 0
[pid   634] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   630] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 636
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... openat resumed>)       = 3
[pid   630] <... futex resumed>)        = 0
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   634] <... futex resumed>)        = 1
[pid   630] <... futex resumed>)        = 0
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 637
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} <unfinished ...>
[pid   634] ftruncate(4, 33587195)      = 0
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   630] <... futex resumed>)        = 0
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] <... futex resumed>)        = 1
[pid   634] sendfile(3, 4, NULL, 4)     = -1 EINVAL (Invalid argument)
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   630] <... futex resumed>)        = 0
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] <... futex resumed>)        = 1
[pid   634] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000
[pid   632] <... mmap resumed>)         = 0x20000000
[pid   635] <... prctl resumed>)        = 0
[pid   635] setpgid(0, 0)               = 0
[pid   635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 637 attached
./strace-static-x86_64: Process 636 attached
) = 1
[pid   629] <... futex resumed>)        = 0
[pid   636] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   632] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   629] <... futex resumed>)        = 0
[pid   637] <... set_robust_list resumed>) = 0
[pid   636] <... set_robust_list resumed>) = 0
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   637] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   636] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   635] <... openat resumed>)       = 3
[pid   635] write(3, "1000", 4)         = 4
[pid   635] close(3)                    = 0
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   635] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   635] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[638], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 638
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   630] <... futex resumed>)        = 0
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   637] <... prctl resumed>)        = 0
[pid   636] <... prctl resumed>)        = 0
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] <... futex resumed>)        = 1
[pid   634] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   636] setpgid(0, 0 <unfinished ...>
[pid   637] setpgid(0, 0)               = 0
[pid   636] <... setpgid resumed>)      = 0
[pid   636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   636] <... openat resumed>)       = 3
[pid   636] write(3, "1000", 4 <unfinished ...>
[pid   637] <... openat resumed>)       = 3
[pid   636] <... write resumed>)        = 4
[pid   637] write(3, "1000", 4 <unfinished ...>
[pid   636] close(3)                    = 0
[pid   637] <... write resumed>)        = 4
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] close(3 <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   637] <... close resumed>)        = 0
[pid   636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   637] <... futex resumed>)        = 0
[pid   636] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   636] <... mprotect resumed>)     = 0
[pid   637] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   636] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   637] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   636] <... clone resumed>, parent_tid=[639], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 639
[pid   637] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   637] <... clone resumed>, parent_tid=[640], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 640
./strace-static-x86_64: Process 640 attached
./strace-static-x86_64: Process 639 attached
./strace-static-x86_64: Process 638 attached
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   639] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   638] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   640] <... set_robust_list resumed>) = 0
[pid   639] <... set_robust_list resumed>) = 0
[pid   638] <... set_robust_list resumed>) = 0
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   640] memfd_create("syzkaller", 0 <unfinished ...>
[pid   639] memfd_create("syzkaller", 0 <unfinished ...>
[pid   638] memfd_create("syzkaller", 0 <unfinished ...>
[pid   640] <... memfd_create resumed>) = 3
[pid   639] <... memfd_create resumed>) = 3
[pid   638] <... memfd_create resumed>) = 3
[pid   640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   640] <... mmap resumed>)         = 0x7efceeaa9000
[pid   639] <... mmap resumed>)         = 0x7efceeaa9000
[pid   638] <... mmap resumed>)         = 0x7efceeaa9000
[pid   640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   634] <... madvise resumed>)      = 0
[pid   632] <... madvise resumed>)      = 0
[pid   631] <... madvise resumed>)      = 0
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   634] <... futex resumed>)        = 1
[pid   632] <... futex resumed>)        = 1
[pid   630] <... futex resumed>)        = 0
[pid   629] <... futex resumed>)        = 0
[pid   634] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   632] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] <... futex resumed>)        = 1
[pid   630] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   629] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   634] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   632] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   631] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   630] <... futex resumed>)        = 0
[pid   629] <... futex resumed>)        = 0
[pid   628] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   634] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   632] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   631] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   630] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   629] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   628] <... futex resumed>)        = 0
[pid   634] <... openat resumed>)       = 5
[pid   632] <... openat resumed>)       = 5
[pid   631] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   628] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   634] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   632] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   631] <... openat resumed>)       = 5
[pid   634] <... futex resumed>)        = 1
[pid   632] <... futex resumed>)        = 1
[pid   630] <... futex resumed>)        = 0
[pid   629] <... futex resumed>)        = 0
[pid   634] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   632] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   631] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   630] exit_group(0 <unfinished ...>
[pid   629] exit_group(0 <unfinished ...>
[pid   634] <... futex resumed>)        = ?
[pid   632] <... futex resumed>)        = ?
[pid   631] <... futex resumed>)        = 1
[pid   630] <... exit_group resumed>)   = ?
[pid   629] <... exit_group resumed>)   = ?
[pid   628] <... futex resumed>)        = 0
[pid   639] <... write resumed>)        = 1048576
[pid   638] <... write resumed>)        = 1048576
[pid   634] +++ exited with 0 +++
[pid   632] +++ exited with 0 +++
[pid   631] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   630] +++ exited with 0 +++
[pid   629] +++ exited with 0 +++
[pid   628] exit_group(0 <unfinished ...>
[pid   640] <... write resumed>)        = 1048576
[pid   639] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   638] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   631] <... futex resumed>)        = ?
[pid   628] <... exit_group resumed>)   = ?
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=629, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   640] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   639] <... munmap resumed>)       = 0
[pid   638] <... munmap resumed>)       = 0
[pid   631] +++ exited with 0 +++
[pid   640] <... munmap resumed>)       = 0
[pid   639] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   638] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=630, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   640] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   639] <... openat resumed>)       = 4
[pid   638] <... openat resumed>)       = 4
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   640] <... openat resumed>)       = 4
[pid   639] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   638] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   628] +++ exited with 0 +++
[pid   299] <... openat resumed>)       = 3
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=628, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   639] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   638] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   639] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   638] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   639] <... ioctl resumed>)        = 0
[pid   638] <... ioctl resumed>)        = 0
[pid   301] <... openat resumed>)       = 3
[pid   299] close(3 <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] <... close resumed>)        = 0
[pid   301] close(3)                    = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 641
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 642
./strace-static-x86_64: Process 642 attached
[pid   642] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   642] setpgid(0, 0)               = 0
[pid   642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   642] write(3, "1000", 4)         = 4
[pid   642] close(3)                    = 0
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   642] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   642] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 641 attached
, parent_tid=[643], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 643
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   642] <... futex resumed>)        = 0
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   641] <... set_robust_list resumed>) = 0
[pid   641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   641] setpgid(0, 0)               = 0
[pid   641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   641] write(3, "1000", 4)         = 4
[pid   641] close(3)                    = 0
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   641] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   641] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 645
[pid   641] <... clone resumed>, parent_tid=[644], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 644
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 645 attached
 <unfinished ...>
[pid   645] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   645] setpgid(0, 0)               = 0
[pid   645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   645] write(3, "1000", 4)         = 4
[pid   645] close(3)                    = 0
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   645] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   645] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[646], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 646
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 643 attached
 <unfinished ...>
[pid   643] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   643] memfd_create("syzkaller", 0) = 3
[pid   643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 644 attached
[pid   644] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   639] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   644] memfd_create("syzkaller", 0) = 3
[pid   644] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   639] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   639] close(4 <unfinished ...>
[pid   638] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   639] <... close resumed>)        = 0
[pid   638] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   639] close(3 <unfinished ...>
[pid   638] close(4)                    = 0
[pid   638] close(3./strace-static-x86_64: Process 646 attached
 <unfinished ...>
[pid   646] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   646] memfd_create("syzkaller", 0) = 3
[pid   646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   639] <... close resumed>)        = 0
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   639] <... futex resumed>)        = 1
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   639] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   639] <... open resumed>)         = 3
[pid   638] <... close resumed>)        = 0
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   636] <... futex resumed>)        = 0
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   639] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = 1
[pid   636] <... futex resumed>)        = 0
[pid   635] <... futex resumed>)        = 0
[pid   640] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   639] <... open resumed>)         = 4
[pid   638] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   635] <... futex resumed>)        = 0
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   639] <... futex resumed>)        = 1
[pid   638] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   640] <... ioctl resumed>)        = 0
[pid   639] ftruncate(4, 33587195 <unfinished ...>
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   639] <... ftruncate resumed>)    = 0
[pid   638] <... open resumed>)         = 3
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   638] <... futex resumed>)        = 1
[pid   636] <... futex resumed>)        = 0
[pid   635] <... futex resumed>)        = 0
[pid   639] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   638] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   636] <... futex resumed>)        = 0
[pid   635] <... futex resumed>)        = 0
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   638] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   638] <... open resumed>)         = 4
[pid   639] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = 1
[pid   635] <... futex resumed>)        = 0
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   639] <... futex resumed>)        = 1
[pid   638] ftruncate(4, 33587195 <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   635] <... futex resumed>)        = 0
[pid   640] close(4 <unfinished ...>
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   640] <... close resumed>)        = 0
[pid   638] <... ftruncate resumed>)    = 0
[pid   636] <... futex resumed>)        = 0
[pid   639] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   640] close(3 <unfinished ...>
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   638] <... futex resumed>)        = 1
[pid   635] <... futex resumed>)        = 0
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   635] <... futex resumed>)        = 0
[pid   638] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   635] <... futex resumed>)        = 0
[pid   638] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   643] <... write resumed>)        = 1048576
[pid   640] <... close resumed>)        = 0
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   637] <... futex resumed>)        = 0
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] <... write resumed>)        = 1048576
[pid   644] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   643] munmap(0x7efceeaa9000, 1048576) = 0
[pid   643] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   640] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   643] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   643] ioctl(4, LOOP_CLR_FD)       = 0
[pid   644] <... munmap resumed>)       = 0
[pid   644] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   640] <... open resumed>)         = 3
[pid   644] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   637] <... futex resumed>)        = 0
[pid   640] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   644] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   640] <... open resumed>)         = 4
[pid   644] <... ioctl resumed>)        = 0
[pid   643] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   643] close(4)                    = 0
[pid   643] close(3 <unfinished ...>
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   644] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   640] <... futex resumed>)        = 1
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] close(4 <unfinished ...>
[pid   640] ftruncate(4, 33587195 <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   644] <... close resumed>)        = 0
[pid   643] <... close resumed>)        = 0
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] close(3 <unfinished ...>
[pid   646] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   644] <... close resumed>)        = 0
[pid   646] <... munmap resumed>)       = 0
[pid   646] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] <... openat resumed>)       = 4
[pid   643] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   640] <... ftruncate resumed>)    = 0
[pid   646] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   643] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   643] <... open resumed>)         = 3
[pid   642] <... futex resumed>)        = 0
[pid   646] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] <... ioctl resumed>)        = 0
[pid   643] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] <... open resumed>)         = 4
[pid   642] <... futex resumed>)        = 0
[pid   640] <... futex resumed>)        = 1
[pid   637] <... futex resumed>)        = 0
[pid   644] <... futex resumed>)        = 1
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   641] <... futex resumed>)        = 0
[pid   640] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   637] <... futex resumed>)        = 0
[pid   646] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   644] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   643] ftruncate(4, 33587195 <unfinished ...>
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] <... futex resumed>)        = 0
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   644] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   642] <... futex resumed>)        = 0
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   640] <... futex resumed>)        = 0
[pid   637] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   646] close(4 <unfinished ...>
[pid   644] <... open resumed>)         = 3
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] <... close resumed>)        = 0
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] close(3 <unfinished ...>
[pid   644] <... futex resumed>)        = 1
[pid   641] <... futex resumed>)        = 0
[pid   646] <... close resumed>)        = 0
[pid   644] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... open resumed>)         = 4
[pid   641] <... futex resumed>)        = 0
[pid   637] <... futex resumed>)        = 0
[pid   646] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... futex resumed>)        = 0
[pid   641] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   646] <... open resumed>)         = 3
[pid   645] <... futex resumed>)        = 0
[pid   644] ftruncate(4, 33587195 <unfinished ...>
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   641] <... futex resumed>)        = 0
[pid   646] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] <... open resumed>)         = 4
[pid   645] <... futex resumed>)        = 0
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   646] ftruncate(4, 33587195 <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   643] <... ftruncate resumed>)    = 0
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   642] <... futex resumed>)        = 0
[pid   643] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   642] <... futex resumed>)        = 0
[pid   643] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] <... ftruncate resumed>)    = 0
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   641] <... futex resumed>)        = 0
[pid   644] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   646] <... ftruncate resumed>)    = 0
[pid   644] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   643] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   644] <... futex resumed>)        = 1
[pid   643] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   641] <... futex resumed>)        = 0
[pid   646] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   643] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   636] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   646] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   645] <... futex resumed>)        = 0
[pid   642] <... futex resumed>)        = 0
[pid   641] <... futex resumed>)        = 0
[pid   636] <... mmap resumed>)         = 0x7efceeb88000
[pid   635] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   636] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   636] <... mprotect resumed>)     = 0
[pid   635] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] <... futex resumed>)        = 0
[pid   645] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   635] <... futex resumed>)        = 0
[pid   646] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 648 attached
 <unfinished ...>
[pid   645] <... futex resumed>)        = 0
[pid   635] <... mmap resumed>)         = 0x7efceeb88000
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   636] <... clone resumed>, parent_tid=[648], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 648
[pid   635] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   636] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   636] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   648] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   648] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   640] <... mmap resumed>)         = 0x20000000
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   640] <... futex resumed>)        = 1
[pid   640] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   643] <... mmap resumed>)         = 0x20000000
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   642] <... futex resumed>)        = 0
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   643] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   639] <... mmap resumed>)         = 0x20000000
[pid   648] <... madvise resumed>)      = 0
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   639] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   648] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] <... futex resumed>)        = 0
[pid   636] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... mmap resumed>)         = 0x20000000
[pid   639] <... futex resumed>)        = 0
[pid   636] <... futex resumed>)        = 1
[pid   639] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   636] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   639] <... openat resumed>)       = 5
[pid   639] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   636] <... futex resumed>)        = 0
[pid   639] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   636] exit_group(0 <unfinished ...>
[pid   635] <... mprotect resumed>)     = 0
[pid   639] <... futex resumed>)        = ?
[pid   636] <... exit_group resumed>)   = ?
[pid   639] +++ exited with 0 +++
[pid   648] <... futex resumed>)        = ?
[pid   646] <... mmap resumed>)         = 0x20000000
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... mmap resumed>)         = 0x20000000
[pid   635] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... futex resumed>)        = 1
[pid   643] <... madvise resumed>)      = 0
[pid   641] <... futex resumed>)        = 0
[pid   640] <... madvise resumed>)      = 0
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 649 attached
 <unfinished ...>
[pid   646] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   644] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   638] <... futex resumed>)        = 0
[pid   649] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   646] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   643] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   641] <... futex resumed>)        = 0
[pid   640] <... futex resumed>)        = 1
[pid   638] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   635] <... clone resumed>, parent_tid=[649], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 649
[pid   649] <... set_robust_list resumed>) = 0
[pid   648] +++ exited with 0 +++
[pid   646] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   645] <... futex resumed>)        = 0
[pid   644] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   643] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   642] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   640] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   637] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   636] +++ exited with 0 +++
[pid   635] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   642] <... futex resumed>)        = 0
[pid   644] <... madvise resumed>)      = 0
[pid   642] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   637] <... futex resumed>)        = 0
[pid   635] <... futex resumed>)        = 0
[pid   643] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   649] madvise(0x20000000, 6291467, MADV_REMOVE) = 0
[pid   646] <... madvise resumed>)      = 0
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   640] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   637] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   635] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=636, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   643] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... futex resumed>)        = 1
[pid   643] <... openat resumed>)       = 5
[pid   641] <... futex resumed>)        = 0
[pid   640] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   646] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   644] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   643] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   641] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   646] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   645] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   643] <... futex resumed>)        = 1
[pid   642] <... futex resumed>)        = 0
[pid   641] <... futex resumed>)        = 0
[pid   640] <... openat resumed>)       = 5
[pid   646] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   645] <... futex resumed>)        = 0
[pid   644] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   643] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   642] exit_group(0 <unfinished ...>
[pid   641] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   640] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   649] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   646] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   645] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   644] <... openat resumed>)       = 5
[pid   643] <... futex resumed>)        = ?
[pid   642] <... exit_group resumed>)   = ?
[pid   640] <... futex resumed>)        = 1
[pid   637] <... futex resumed>)        = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   649] <... futex resumed>)        = 1
[pid   646] <... openat resumed>)       = 5
[pid   644] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   643] +++ exited with 0 +++
[pid   642] +++ exited with 0 +++
[pid   637] exit_group(0 <unfinished ...>
[pid   635] <... futex resumed>)        = 0
[pid   649] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   646] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   644] <... futex resumed>)        = 1
[pid   641] <... futex resumed>)        = 0
[pid   637] <... exit_group resumed>)   = ?
[pid   635] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   646] <... futex resumed>)        = 1
[pid   645] <... futex resumed>)        = 0
[pid   644] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   641] exit_group(0 <unfinished ...>
[pid   638] <... futex resumed>)        = 0
[pid   635] <... futex resumed>)        = 1
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=642, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   635] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3 <unfinished ...>
[pid   645] exit_group(0 <unfinished ...>
[pid   638] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   645] <... exit_group resumed>)   = ?
[pid   641] <... exit_group resumed>)   = ?
[pid   638] <... openat resumed>)       = 5
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 650
[pid   644] <... futex resumed>)        = ?
[pid   644] +++ exited with 0 +++
[pid   640] +++ exited with 0 +++
[pid   637] +++ exited with 0 +++
./strace-static-x86_64: Process 650 attached
[pid   650] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   650] setpgid(0, 0)               = 0
[pid   650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   650] write(3, "1000", 4)         = 4
[pid   650] close(3)                    = 0
[pid   638] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... restart_syscall resumed>) = 0
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   650] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   641] +++ exited with 0 +++
[pid   638] <... futex resumed>)        = 1
[pid   635] <... futex resumed>)        = 0
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=637, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   650] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[651], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 651
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 651 attached
 <unfinished ...>
[pid   646] +++ exited with 0 +++
[pid   645] +++ exited with 0 +++
[pid   638] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   635] exit_group(0 <unfinished ...>
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=641, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   649] <... futex resumed>)        = ?
[pid   638] <... futex resumed>)        = ?
[pid   635] <... exit_group resumed>)   = ?
[pid   301] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   649] +++ exited with 0 +++
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=645, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   299] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   638] +++ exited with 0 +++
[pid   635] +++ exited with 0 +++
[pid   301] <... restart_syscall resumed>) = 0
[pid   300] <... openat resumed>)       = 3
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 652
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=635, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   293] <... openat resumed>)       = 3
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 653
./strace-static-x86_64: Process 653 attached
[pid   653] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   653] setpgid(0, 0)               = 0
[pid   653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   653] write(3, "1000", 4)         = 4
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   293] <... ioctl resumed>)        = 0
[pid   300] close(3 <unfinished ...>
[pid   301] <... openat resumed>)       = 3
[pid   293] close(3 <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   301] <... ioctl resumed>)        = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   301] <... close resumed>)        = 0
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 655
[pid   653] close(3 <unfinished ...>
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   653] <... close resumed>)        = 0
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 656
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 657
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   653] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   653] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[658], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 658
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 655 attached
 <unfinished ...>
[pid   655] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   651] set_robust_list(0x7efcf6ec99e0, 24./strace-static-x86_64: Process 657 attached
./strace-static-x86_64: Process 656 attached
) = 0
[pid   651] memfd_create("syzkaller", 0 <unfinished ...>
[pid   657] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   656] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   651] <... memfd_create resumed>) = 3
[pid   657] <... set_robust_list resumed>) = 0
[pid   656] <... set_robust_list resumed>) = 0
[pid   651] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   657] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   651] <... mmap resumed>)         = 0x7efceeaa9000
[pid   656] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   655] <... set_robust_list resumed>) = 0
[pid   655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   655] setpgid(0, 0)               = 0
[pid   655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   655] write(3, "1000", 4)         = 4
[pid   655] close(3 <unfinished ...>
[pid   657] <... prctl resumed>)        = 0
[pid   656] <... prctl resumed>)        = 0
[pid   655] <... close resumed>)        = 0
[pid   657] setpgid(0, 0 <unfinished ...>
[pid   656] setpgid(0, 0./strace-static-x86_64: Process 652 attached
 <unfinished ...>
[pid   657] <... setpgid resumed>)      = 0
[pid   656] <... setpgid resumed>)      = 0
[pid   656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   652] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   656] <... openat resumed>)       = 3
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   655] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   657] <... openat resumed>)       = 3
[pid   656] write(3, "1000", 4 <unfinished ...>
[pid   655] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   657] write(3, "1000", 4 <unfinished ...>
[pid   656] <... write resumed>)        = 4
[pid   652] <... set_robust_list resumed>) = 0
[pid   657] <... write resumed>)        = 4
[pid   656] close(3 <unfinished ...>
[pid   657] close(3)                    = 0
[pid   656] <... close resumed>)        = 0
[pid   652] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   655] <... clone resumed>, parent_tid=[659], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 659
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... prctl resumed>)        = 0
[pid   651] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   657] <... futex resumed>)        = 0
[pid   656] <... futex resumed>)        = 0
[pid   652] setpgid(0, 0 <unfinished ...>
[pid   655] <... futex resumed>)        = 0
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 658 attached
 <unfinished ...>
[pid   658] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   652] <... setpgid resumed>)      = 0
[pid   657] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   656] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   658] memfd_create("syzkaller", 0) = 3
[pid   658] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   657] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   656] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   657] <... mprotect resumed>)     = 0
[pid   656] <... mprotect resumed>)     = 0
[pid   657] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   656] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   652] <... openat resumed>)       = 3
[pid   658] <... mmap resumed>)         = 0x7efceeaa9000
[pid   657] <... clone resumed>, parent_tid=[660], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 660
./strace-static-x86_64: Process 661 attached
./strace-static-x86_64: Process 660 attached
./strace-static-x86_64: Process 659 attached
[pid   656] <... clone resumed>, parent_tid=[661], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 661
[pid   652] write(3, "1000", 4 <unfinished ...>
[pid   651] <... write resumed>)        = 1048576
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   660] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   659] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   657] <... futex resumed>)        = 0
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... write resumed>)        = 4
[pid   651] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   661] <... set_robust_list resumed>) = 0
[pid   661] memfd_create("syzkaller", 0) = 3
[pid   661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   656] <... futex resumed>)        = 0
[pid   660] <... set_robust_list resumed>) = 0
[pid   659] <... set_robust_list resumed>) = 0
[pid   658] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   652] close(3 <unfinished ...>
[pid   651] <... munmap resumed>)       = 0
[pid   652] <... close resumed>)        = 0
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   652] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   652] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   652] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[662], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 662
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   659] memfd_create("syzkaller", 0) = 3
[pid   659] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 662 attached
 <unfinished ...>
[pid   661] <... write resumed>)        = 1048576
[pid   660] memfd_create("syzkaller", 0 <unfinished ...>
[pid   659] <... mmap resumed>)         = 0x7efceeaa9000
[pid   661] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   660] <... memfd_create resumed>) = 3
[pid   662] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   661] <... munmap resumed>)       = 0
[pid   660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   658] <... write resumed>)        = 1048576
[pid   651] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   660] <... mmap resumed>)         = 0x7efceeaa9000
[pid   662] <... set_robust_list resumed>) = 0
[pid   661] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   659] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   658] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   651] <... openat resumed>)       = 4
[pid   661] <... openat resumed>)       = 4
[pid   660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   662] memfd_create("syzkaller", 0 <unfinished ...>
[pid   661] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   661] ioctl(4, LOOP_CLR_FD)       = 0
[pid   651] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   651] ioctl(4, LOOP_CLR_FD)       = 0
[pid   661] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   662] <... memfd_create resumed>) = 3
[pid   661] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   660] <... write resumed>)        = 1048576
[pid   658] <... munmap resumed>)       = 0
[pid   661] close(4)                    = 0
[pid   661] close(3 <unfinished ...>
[pid   662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   661] <... close resumed>)        = 0
[pid   660] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   659] <... write resumed>)        = 1048576
[pid   658] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   662] <... mmap resumed>)         = 0x7efceeaa9000
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] <... munmap resumed>)       = 0
[pid   659] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   658] <... openat resumed>)       = 4
[pid   661] <... futex resumed>)        = 1
[pid   659] <... munmap resumed>)       = 0
[pid   656] <... futex resumed>)        = 0
[pid   651] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   661] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   660] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   656] <... futex resumed>)        = 0
[pid   651] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   661] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   660] <... openat resumed>)       = 4
[pid   659] <... openat resumed>)       = 4
[pid   658] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   661] <... open resumed>)         = 3
[pid   660] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   658] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   651] close(4 <unfinished ...>
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   659] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   658] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   661] <... futex resumed>)        = 1
[pid   659] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   656] <... futex resumed>)        = 0
[pid   651] <... close resumed>)        = 0
[pid   662] <... write resumed>)        = 1048576
[pid   661] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   660] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   659] <... ioctl resumed>)        = 0
[pid   658] <... ioctl resumed>)        = 0
[pid   656] <... futex resumed>)        = 0
[pid   651] close(3 <unfinished ...>
[pid   661] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   661] <... open resumed>)         = 4
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   656] <... futex resumed>)        = 0
[pid   661] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   656] <... futex resumed>)        = 0
[pid   661] ftruncate(4, 33587195 <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   661] <... ftruncate resumed>)    = 0
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   656] <... futex resumed>)        = 0
[pid   661] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   656] <... futex resumed>)        = 0
[pid   661] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   659] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   659] close(4 <unfinished ...>
[pid   651] <... close resumed>)        = 0
[pid   661] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   660] <... ioctl resumed>)        = 0
[pid   659] <... close resumed>)        = 0
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] close(3 <unfinished ...>
[pid   661] <... futex resumed>)        = 1
[pid   659] <... close resumed>)        = 0
[pid   656] <... futex resumed>)        = 0
[pid   661] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   659] <... futex resumed>)        = 1
[pid   656] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   661] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   659] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   655] <... futex resumed>)        = 0
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] <... munmap resumed>)       = 0
[pid   660] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   659] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   658] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] <... futex resumed>)        = 1
[pid   650] <... futex resumed>)        = 0
[pid   662] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   660] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   659] <... open resumed>)         = 3
[pid   658] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   651] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   662] <... openat resumed>)       = 4
[pid   660] close(4 <unfinished ...>
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] close(4 <unfinished ...>
[pid   651] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   660] <... close resumed>)        = 0
[pid   659] <... futex resumed>)        = 1
[pid   658] <... close resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   651] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   662] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   660] close(3 <unfinished ...>
[pid   659] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] close(3 <unfinished ...>
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] <... open resumed>)         = 3
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   660] <... close resumed>)        = 0
[pid   659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   658] <... close resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   662] <... ioctl resumed>)        = 0
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] <... futex resumed>)        = 0
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... mmap resumed>)         = 0x20000000
[pid   660] <... futex resumed>)        = 1
[pid   659] <... open resumed>)         = 4
[pid   658] <... futex resumed>)        = 1
[pid   657] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   651] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] <... open resumed>)         = 4
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   661] <... futex resumed>)        = 1
[pid   660] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   659] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   657] <... futex resumed>)        = 0
[pid   656] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   662] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   661] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   660] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   659] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] <... futex resumed>)        = 0
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   661] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   660] <... open resumed>)         = 3
[pid   659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   658] <... open resumed>)         = 3
[pid   656] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   651] ftruncate(4, 33587195 <unfinished ...>
[pid   662] close(4 <unfinished ...>
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] <... ftruncate resumed>)    = 0
[pid   662] <... close resumed>)        = 0
[pid   660] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 1
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] close(3 <unfinished ...>
[pid   660] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   651] <... futex resumed>)        = 0
[pid   662] <... close resumed>)        = 0
[pid   651] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   659] ftruncate(4, 33587195 <unfinished ...>
[pid   657] <... futex resumed>)        = 0
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   653] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = 0
[pid   662] <... futex resumed>)        = 1
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] <... futex resumed>)        = 0
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   660] <... futex resumed>)        = 0
[pid   658] <... futex resumed>)        = 0
[pid   657] <... futex resumed>)        = 1
[pid   653] <... futex resumed>)        = 1
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   662] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   660] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   658] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] <... futex resumed>)        = 0
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   660] <... open resumed>)         = 4
[pid   658] <... open resumed>)         = 4
[pid   662] <... open resumed>)         = 3
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = 1
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 1
[pid   657] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   651] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] <... futex resumed>)        = 0
[pid   660] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   660] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   658] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   657] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   662] <... open resumed>)         = 4
[pid   660] ftruncate(4, 33587195 <unfinished ...>
[pid   658] ftruncate(4, 33587195 <unfinished ...>
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   652] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   662] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   652] <... futex resumed>)        = 0
[pid   662] ftruncate(4, 33587195 <unfinished ...>
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] <... ftruncate resumed>)    = 0
[pid   661] <... madvise resumed>)      = 0
[pid   660] <... ftruncate resumed>)    = 0
[pid   659] <... ftruncate resumed>)    = 0
[pid   658] <... ftruncate resumed>)    = 0
[pid   651] <... sendfile resumed>)     = 4
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] <... futex resumed>)        = 1
[pid   660] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 1
[pid   657] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   651] <... futex resumed>)        = 1
[pid   650] <... futex resumed>)        = 0
[pid   662] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   660] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   658] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... futex resumed>)        = 1
[pid   659] <... futex resumed>)        = 1
[pid   657] <... futex resumed>)        = 0
[pid   656] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   650] <... futex resumed>)        = 0
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   659] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   656] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] <... mmap resumed>)         = 0x20000000
[pid   656] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   656] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   651] <... futex resumed>)        = 1
[pid   651] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   650] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   661] <... openat resumed>)       = 5
[pid   661] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] <... futex resumed>)        = 1
[pid   656] <... futex resumed>)        = 0
[pid   656] exit_group(0)               = ?
[pid   661] <... futex resumed>)        = ?
[pid   651] <... futex resumed>)        = 0
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   651] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   661] +++ exited with 0 +++
[pid   656] +++ exited with 0 +++
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=656, si_uid=0, si_status=0, si_utime=0, si_stime=6} ---
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   293] close(3)                    = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 663
./strace-static-x86_64: Process 663 attached
[pid   663] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   663] setpgid(0, 0)               = 0
[pid   663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   663] write(3, "1000", 4)         = 4
[pid   663] close(3)                    = 0
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   663] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   663] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   662] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   660] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   659] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   658] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] <... futex resumed>)        = 1
[pid   660] <... futex resumed>)        = 1
[pid   657] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   662] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   660] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   663] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   657] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   659] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] <... futex resumed>)        = 1
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   658] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   655] <... futex resumed>)        = 0
[pid   659] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] <... mmap resumed>)         = 0x20000000
[pid   653] <... futex resumed>)        = 0
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] <... mmap resumed>)         = 0x20000000
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   655] <... futex resumed>)        = 0
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   659] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   663] <... clone resumed>, parent_tid=[664], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 664
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 664 attached
 <unfinished ...>
[pid   664] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   658] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 1
[pid   658] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   660] <... mmap resumed>)         = 0x20000000
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   657] <... futex resumed>)        = 0
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   660] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   652] <... futex resumed>)        = 0
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   658] <... mmap resumed>)         = 0x20000000
[pid   664] <... set_robust_list resumed>) = 0
[pid   664] memfd_create("syzkaller", 0 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] <... futex resumed>)        = 0
[pid   658] <... futex resumed>)        = 1
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   658] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   664] <... memfd_create resumed>) = 3
[pid   664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   664] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   664] munmap(0x7efceeaa9000, 1048576) = 0
[pid   664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   664] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   664] ioctl(4, LOOP_CLR_FD)       = 0
[pid   664] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   664] close(4 <unfinished ...>
[pid   650] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   650] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   650] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   650] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   650] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[665], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 665
[pid   650] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   650] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   664] <... close resumed>)        = 0
./strace-static-x86_64: Process 665 attached
[pid   664] close(3)                    = 0
[pid   665] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   665] <... set_robust_list resumed>) = 0
[pid   663] <... futex resumed>)        = 0
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   664] <... futex resumed>)        = 1
[pid   664] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   663] <... futex resumed>)        = 0
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   665] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   664] <... futex resumed>)        = 1
[pid   664] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   651] <... madvise resumed>)      = 0
[pid   664] <... open resumed>)         = 4
[pid   662] <... madvise resumed>)      = 0
[pid   660] <... madvise resumed>)      = 0
[pid   651] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   665] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid   659] <... madvise resumed>)      = 0
[pid   658] <... madvise resumed>)      = 0
[pid   665] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   651] <... futex resumed>)        = 0
[pid   665] <... futex resumed>)        = 1
[pid   664] <... futex resumed>)        = 1
[pid   663] <... futex resumed>)        = 0
[pid   662] <... futex resumed>)        = 1
[pid   660] <... futex resumed>)        = 1
[pid   659] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 1
[pid   657] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   651] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   650] <... futex resumed>)        = 0
[pid   665] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   664] ftruncate(4, 33587195 <unfinished ...>
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   660] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   657] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   655] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   653] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   652] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   650] exit_group(0 <unfinished ...>
[pid   665] <... futex resumed>)        = ?
[pid   664] <... ftruncate resumed>)    = 0
[pid   663] <... futex resumed>)        = 0
[pid   662] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   660] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   659] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   658] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   657] <... futex resumed>)        = 0
[pid   655] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   651] <... futex resumed>)        = ?
[pid   650] <... exit_group resumed>)   = ?
[pid   665] +++ exited with 0 +++
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   662] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   657] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   653] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   652] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   655] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   658] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   659] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   664] <... futex resumed>)        = 1
[pid   663] <... futex resumed>)        = 0
[pid   662] <... openat resumed>)       = 5
[pid   660] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   659] <... openat resumed>)       = 5
[pid   658] <... openat resumed>)       = 5
[pid   664] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} <unfinished ...>
[pid   662] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] <... openat resumed>)       = 5
[pid   659] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   658] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   662] <... futex resumed>)        = 1
[pid   660] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   659] <... futex resumed>)        = 1
[pid   658] <... futex resumed>)        = 1
[pid   655] <... futex resumed>)        = 0
[pid   653] <... futex resumed>)        = 0
[pid   652] <... futex resumed>)        = 0
[pid   662] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   660] <... futex resumed>)        = 1
[pid   659] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   658] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   657] <... futex resumed>)        = 0
[pid   655] exit_group(0 <unfinished ...>
[pid   653] exit_group(0 <unfinished ...>
[pid   652] exit_group(0 <unfinished ...>
[pid   662] <... futex resumed>)        = ?
[pid   660] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   659] <... futex resumed>)        = ?
[pid   658] <... futex resumed>)        = ?
[pid   657] exit_group(0 <unfinished ...>
[pid   655] <... exit_group resumed>)   = ?
[pid   653] <... exit_group resumed>)   = ?
[pid   652] <... exit_group resumed>)   = ?
[pid   664] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   662] +++ exited with 0 +++
[pid   659] +++ exited with 0 +++
[pid   658] +++ exited with 0 +++
[pid   657] <... exit_group resumed>)   = ?
[pid   651] +++ exited with 0 +++
[pid   650] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=650, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   660] <... futex resumed>)        = ?
[pid   655] +++ exited with 0 +++
[pid   653] +++ exited with 0 +++
[pid   294] <... restart_syscall resumed>) = 0
[pid   652] +++ exited with 0 +++
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=652, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3 <unfinished ...>
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   660] +++ exited with 0 +++
[pid   657] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=655, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=653, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   294] <... close resumed>)        = 0
[pid   664] <... futex resumed>)        = 1
[pid   663] <... futex resumed>)        = 0
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=657, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   300] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   295] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   664] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... restart_syscall resumed>) = 0
[pid   295] <... restart_syscall resumed>) = 0
./strace-static-x86_64: Process 666 attached
[pid   663] <... futex resumed>)        = 0
[pid   666] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 666
[pid   666] <... set_robust_list resumed>) = 0
[pid   301] <... openat resumed>)       = 3
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   299] <... openat resumed>)       = 3
[pid   666] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   300] <... openat resumed>)       = 3
[pid   299] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   666] <... prctl resumed>)        = 0
[pid   301] <... ioctl resumed>)        = 0
[pid   300] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   299] <... ioctl resumed>)        = 0
[pid   666] setpgid(0, 0 <unfinished ...>
[pid   301] close(3 <unfinished ...>
[pid   300] <... ioctl resumed>)        = 0
[pid   299] close(3 <unfinished ...>
[pid   295] <... openat resumed>)       = 3
[pid   666] <... setpgid resumed>)      = 0
[pid   301] <... close resumed>)        = 0
[pid   300] close(3 <unfinished ...>
[pid   299] <... close resumed>)        = 0
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   664] <... mmap resumed>)         = 0x20000000
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   300] <... close resumed>)        = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... ioctl resumed>)        = 0
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   664] <... futex resumed>)        = 1
[pid   663] <... futex resumed>)        = 0
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 667
[pid   295] <... close resumed>)        = 0
[pid   664] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   300] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 669
[pid   299] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 668
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 667 attached
 <unfinished ...>
[pid   664] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   663] <... futex resumed>)        = 0
[pid   664] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 670
[pid   666] <... openat resumed>)       = 3
./strace-static-x86_64: Process 668 attached
[pid   666] write(3, "1000", 4 <unfinished ...>
[pid   667] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   666] <... write resumed>)        = 4
[pid   667] <... set_robust_list resumed>) = 0
[pid   667] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 669 attached
 <unfinished ...>
[pid   669] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   667] <... prctl resumed>)        = 0
[pid   667] setpgid(0, 0)               = 0
[pid   669] <... set_robust_list resumed>) = 0
[pid   667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   666] close(3 <unfinished ...>
[pid   668] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   666] <... close resumed>)        = 0
[pid   668] <... set_robust_list resumed>) = 0
./strace-static-x86_64: Process 670 attached
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   670] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   668] <... prctl resumed>)        = 0
[pid   666] <... futex resumed>)        = 0
[pid   670] <... set_robust_list resumed>) = 0
[pid   669] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   666] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   668] setpgid(0, 0 <unfinished ...>
[pid   667] <... openat resumed>)       = 3
[pid   666] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   669] <... prctl resumed>)        = 0
[pid   670] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   666] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   668] <... setpgid resumed>)      = 0
[pid   669] setpgid(0, 0)               = 0
[pid   669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   666] <... mprotect resumed>)     = 0
[pid   668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   667] write(3, "1000", 4 <unfinished ...>
[pid   670] <... prctl resumed>)        = 0
[pid   666] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   668] <... openat resumed>)       = 3
[pid   670] setpgid(0, 0)               = 0
[pid   668] write(3, "1000", 4 <unfinished ...>
[pid   666] <... clone resumed>, parent_tid=[671], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 671
[pid   670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   668] <... write resumed>)        = 4
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] <... write resumed>)        = 4
[pid   667] close(3 <unfinished ...>
[pid   670] <... openat resumed>)       = 3
[pid   667] <... close resumed>)        = 0
[pid   668] close(3 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   669] <... openat resumed>)       = 3
[pid   668] <... close resumed>)        = 0
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] write(3, "1000", 4 <unfinished ...>
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   667] <... futex resumed>)        = 0
[pid   667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   668] <... futex resumed>)        = 0
[pid   670] <... write resumed>)        = 4
[pid   669] write(3, "1000", 4 <unfinished ...>
[pid   667] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   669] <... write resumed>)        = 4
[pid   667] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   669] close(3 <unfinished ...>
[pid   667] <... mprotect resumed>)     = 0
[pid   669] <... close resumed>)        = 0
[pid   670] close(3 <unfinished ...>
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   667] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   670] <... close resumed>)        = 0
[pid   669] <... futex resumed>)        = 0
[pid   668] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   667] <... clone resumed>, parent_tid=[672], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 672
[pid   669] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   669] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   667] <... futex resumed>)        = 0
[pid   669] <... mprotect resumed>)     = 0
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   669] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   668] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   668] <... mprotect resumed>)     = 0
[pid   670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   669] <... clone resumed>, parent_tid=[673], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 673
[pid   670] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   668] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   670] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   670] <... mprotect resumed>)     = 0
[pid   670] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   668] <... clone resumed>, parent_tid=[674], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 674
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] <... clone resumed>, parent_tid=[675], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 675
[pid   668] <... futex resumed>)        = 0
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   670] <... futex resumed>)        = 0
./strace-static-x86_64: Process 671 attached
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   671] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   671] memfd_create("syzkaller", 0) = 3
[pid   671] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
./strace-static-x86_64: Process 675 attached
./strace-static-x86_64: Process 674 attached
./strace-static-x86_64: Process 673 attached
./strace-static-x86_64: Process 672 attached
[pid   664] <... madvise resumed>)      = 0
[pid   675] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   673] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   672] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] <... set_robust_list resumed>) = 0
[pid   674] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   673] <... set_robust_list resumed>) = 0
[pid   672] <... set_robust_list resumed>) = 0
[pid   664] <... futex resumed>)        = 1
[pid   663] <... futex resumed>)        = 0
[pid   675] memfd_create("syzkaller", 0 <unfinished ...>
[pid   674] <... set_robust_list resumed>) = 0
[pid   673] memfd_create("syzkaller", 0 <unfinished ...>
[pid   671] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   663] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] <... memfd_create resumed>) = 3
[pid   674] memfd_create("syzkaller", 0 <unfinished ...>
[pid   673] <... memfd_create resumed>) = 3
[pid   672] memfd_create("syzkaller", 0 <unfinished ...>
[pid   664] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   663] <... futex resumed>)        = 0
[pid   675] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   674] <... memfd_create resumed>) = 3
[pid   673] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   672] <... memfd_create resumed>) = 3
[pid   671] <... write resumed>)        = 1048576
[pid   664] <... openat resumed>)       = 5
[pid   663] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] <... mmap resumed>)         = 0x7efceeaa9000
[pid   674] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   673] <... mmap resumed>)         = 0x7efceeaa9000
[pid   672] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   671] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   664] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   663] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   675] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   674] <... mmap resumed>)         = 0x7efceeaa9000
[pid   671] <... munmap resumed>)       = 0
[pid   664] <... futex resumed>)        = 0
[pid   663] exit_group(0 <unfinished ...>
[pid   672] <... mmap resumed>)         = 0x7efceeaa9000
[pid   675] <... write resumed>)        = 1048576
[pid   674] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   673] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   671] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid   663] <... exit_group resumed>)   = ?
[pid   674] <... write resumed>)        = 1048576
[pid   671] <... openat resumed>)       = 4
[pid   664] +++ exited with 0 +++
[pid   663] +++ exited with 0 +++
[pid   671] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=663, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   671] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   671] ioctl(4, LOOP_CLR_FD)       = 0
[pid   674] munmap(0x7efceeaa9000, 1048576) = 0
[pid   674] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid   672] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   671] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   671] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   293] <... openat resumed>)       = 3
[pid   671] close(4 <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   671] <... close resumed>)        = 0
[pid   293] <... ioctl resumed>)        = 0
[pid   671] close(3 <unfinished ...>
[pid   293] close(3 <unfinished ...>
[pid   671] <... close resumed>)        = 0
[pid   293] <... close resumed>)        = 0
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   671] <... futex resumed>)        = 1
[pid   671] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 676
[pid   674] <... openat resumed>)       = 4
[pid   674] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   674] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 676 attached
[pid   676] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   676] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   671] <... futex resumed>)        = 0
[pid   666] <... futex resumed>)        = 1
[pid   674] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   671] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   674] close(4 <unfinished ...>
[pid   671] <... open resumed>)         = 3
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   674] <... close resumed>)        = 0
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   674] close(3 <unfinished ...>
[pid   671] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] <... close resumed>)        = 0
[pid   671] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   671] <... open resumed>)         = 4
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   671] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   671] ftruncate(4, 33587195 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   676] <... prctl resumed>)        = 0
[pid   671] <... ftruncate resumed>)    = 0
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   676] setpgid(0, 0 <unfinished ...>
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   676] <... setpgid resumed>)      = 0
[pid   674] <... futex resumed>)        = 1
[pid   671] <... futex resumed>)        = 0
[pid   668] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   674] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   671] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   676] <... openat resumed>)       = 3
[pid   675] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   674] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   668] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   676] write(3, "1000", 4 <unfinished ...>
[pid   675] <... munmap resumed>)       = 0
[pid   674] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   676] <... write resumed>)        = 4
[pid   675] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   674] <... open resumed>)         = 3
[pid   671] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   676] close(3 <unfinished ...>
[pid   675] <... openat resumed>)       = 4
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   676] <... close resumed>)        = 0
[pid   675] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   674] <... futex resumed>)        = 1
[pid   671] <... futex resumed>)        = 1
[pid   668] <... futex resumed>)        = 0
[pid   666] <... futex resumed>)        = 0
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   674] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   673] <... write resumed>)        = 1048576
[pid   671] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   676] <... futex resumed>)        = 0
[pid   675] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   674] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   671] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   668] <... futex resumed>)        = 0
[pid   673] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   675] <... ioctl resumed>)        = 0
[pid   674] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   671] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   673] <... munmap resumed>)       = 0
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   672] <... write resumed>)        = 1048576
[pid   673] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4
[pid   672] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   676] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   674] <... open resumed>)         = 4
[pid   673] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   672] <... munmap resumed>)       = 0
[pid   676] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   672] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   676] <... mprotect resumed>)     = 0
[pid   673] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   672] <... openat resumed>)       = 4
[pid   673] <... ioctl resumed>)        = 0
[pid   672] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   676] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   668] <... futex resumed>)        = 0
[pid   674] <... futex resumed>)        = 1
[pid   675] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   672] ioctl(4, LOOP_CLR_FD <unfinished ...>
[pid   675] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   674] ftruncate(4, 33587195 <unfinished ...>
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] close(4 <unfinished ...>
[pid   672] <... ioctl resumed>)        = 0
[pid   668] <... futex resumed>)        = 0
[pid   676] <... clone resumed>, parent_tid=[677], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 677
[pid   675] <... close resumed>)        = 0
[pid   674] <... ftruncate resumed>)    = 0
[pid   675] close(3 <unfinished ...>
[pid   673] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] <... close resumed>)        = 0
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] close(4 <unfinished ...>
[pid   675] <... futex resumed>)        = 1
[pid   673] <... close resumed>)        = 0
[pid   670] <... futex resumed>)        = 0
[pid   676] <... futex resumed>)        = 0
[pid   675] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   674] <... futex resumed>)        = 0
[pid   673] close(3 <unfinished ...>
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   675] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   674] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   673] <... close resumed>)        = 0
[pid   670] <... futex resumed>)        = 0
[pid   675] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   674] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] <... open resumed>)         = 3
[pid   673] <... futex resumed>)        = 1
[pid   672] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   672] close(4 <unfinished ...>
[pid   675] <... futex resumed>)        = 1
[pid   672] <... close resumed>)        = 0
[pid   670] <... futex resumed>)        = 0
[pid   675] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   674] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   672] close(3 <unfinished ...>
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   669] <... futex resumed>)        = 0
[pid   668] <... futex resumed>)        = 0
./strace-static-x86_64: Process 677 attached
[pid   675] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   674] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   672] <... close resumed>)        = 0
[pid   671] <... mmap resumed>)         = 0x20000000
[pid   670] <... futex resumed>)        = 0
[pid   675] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] <... open resumed>)         = 4
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] <... futex resumed>)        = 1
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] <... futex resumed>)        = 0
[pid   675] <... futex resumed>)        = 1
[pid   670] <... futex resumed>)        = 0
[pid   675] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   670] <... futex resumed>)        = 0
[pid   675] ftruncate(4, 33587195 <unfinished ...>
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   675] <... ftruncate resumed>)    = 0
[pid   674] <... futex resumed>)        = 0
[pid   673] <... futex resumed>)        = 0
[pid   671] <... futex resumed>)        = 1
[pid   669] <... futex resumed>)        = 1
[pid   668] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   675] <... futex resumed>)        = 1
[pid   674] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   673] <... open resumed>)         = 3
[pid   672] <... futex resumed>)        = 0
[pid   670] <... futex resumed>)        = 0
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   671] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   667] <... futex resumed>)        = 1
[pid   677] <... set_robust_list resumed>) = 0
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   674] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 <unfinished ...>
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   669] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   668] <... futex resumed>)        = 0
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   675] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   674] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   673] <... futex resumed>)        = 0
[pid   672] <... open resumed>)         = 3
[pid   670] <... futex resumed>)        = 0
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   673] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   669] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] memfd_create("syzkaller", 0 <unfinished ...>
[pid   673] <... open resumed>)         = 4
[pid   672] <... futex resumed>)        = 1
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   667] <... futex resumed>)        = 0
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   669] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... futex resumed>)        = 0
[pid   672] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] <... futex resumed>)        = 0
[pid   673] ftruncate(4, 33587195 <unfinished ...>
[pid   672] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 <unfinished ...>
[pid   669] <... futex resumed>)        = 0
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   672] <... open resumed>)         = 4
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... memfd_create resumed>) = 3
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   667] <... futex resumed>)        = 0
[pid   672] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   667] <... futex resumed>)        = 0
[pid   677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   672] ftruncate(4, 33587195 <unfinished ...>
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... mmap resumed>)         = 0x7efceeaa9000
[pid   677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   677] munmap(0x7efceeaa9000, 1048576) = 0
[pid   677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   677] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   677] ioctl(4, LOOP_CLR_FD)       = 0
[pid   671] <... madvise resumed>)      = 0
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   666] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   666] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   671] <... futex resumed>)        = 1
[pid   677] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   677] close(4)                    = 0
[pid   677] close(3 <unfinished ...>
[pid   671] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   671] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   666] <... futex resumed>)        = 0
[pid   666] exit_group(0)               = ?
[pid   671] <... futex resumed>)        = ?
[pid   677] <... close resumed>)        = 0
[pid   675] <... sendfile resumed>)     = 4
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... ftruncate resumed>)    = 0
[pid   672] <... ftruncate resumed>)    = 0
[pid   675] <... futex resumed>)        = 1
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   675] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   673] <... futex resumed>)        = 1
[pid   672] <... futex resumed>)        = 1
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   669] <... futex resumed>)        = 0
[pid   667] <... futex resumed>)        = 0
[pid   675] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   673] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   672] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   673] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   672] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   669] <... futex resumed>)        = 0
[pid   667] <... futex resumed>)        = 0
[pid   673] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   672] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   676] <... futex resumed>)        = 0
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   673] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   672] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... futex resumed>)        = 1
[pid   672] <... futex resumed>)        = 1
[pid   669] <... futex resumed>)        = 0
[pid   667] <... futex resumed>)        = 0
[pid   673] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   672] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   672] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   669] <... futex resumed>)        = 0
[pid   667] <... futex resumed>)        = 0
[pid   673] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   672] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... futex resumed>)        = 1
[pid   677] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   677] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   676] <... futex resumed>)        = 0
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... futex resumed>)        = 1
[pid   677] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   671] +++ exited with 0 +++
[pid   666] +++ exited with 0 +++
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=666, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   294] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid   677] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] <... restart_syscall resumed>) = 0
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid   294] ioctl(3, LOOP_CLR_FD)       = 0
[pid   294] close(3)                    = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 678
[pid   676] <... futex resumed>)        = 0
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... futex resumed>)        = 1
[pid   677] ftruncate(4, 33587195./strace-static-x86_64: Process 678 attached
 <unfinished ...>
[pid   678] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   677] <... ftruncate resumed>)    = 0
[pid   677] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   676] <... futex resumed>)        = 0
[pid   677] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   677] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   676] <... futex resumed>)        = 0
[pid   677] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   677] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   676] <... futex resumed>)        = 0
[pid   677] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   668] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   668] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   678] setpgid(0, 0)               = 0
[pid   678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   678] write(3, "1000", 4)         = 4
[pid   678] close(3)                    = 0
[pid   678] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   678] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   678] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[679], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 679
[pid   678] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   673] <... mmap resumed>)         = 0x20000000
[pid   675] <... mmap resumed>)         = 0x20000000
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   675] <... futex resumed>)        = 1
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   675] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   673] <... futex resumed>)        = 1
[pid   670] <... futex resumed>)        = 0
[pid   669] <... futex resumed>)        = 0
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   669] <... futex resumed>)        = 0
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   677] <... mmap resumed>)         = 0x20000000
[pid   668] <... mmap resumed>)         = 0x7efceeb88000
[pid   668] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   668] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[680], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 680
./strace-static-x86_64: Process 679 attached
[pid   668] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   679] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   668] <... futex resumed>)        = 0
[pid   668] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   679] <... set_robust_list resumed>) = 0
[pid   672] <... mmap resumed>)         = 0x20000000
[pid   679] memfd_create("syzkaller", 0 <unfinished ...>
[pid   674] <... mmap resumed>)         = 0x20000000
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   679] <... memfd_create resumed>) = 3
[pid   677] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] <... futex resumed>)        = 1
[pid   667] <... futex resumed>)        = 0
[pid   679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   677] <... futex resumed>)        = 1
[pid   676] <... futex resumed>)        = 0
[pid   674] <... futex resumed>)        = 0
[pid   672] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   667] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   679] <... mmap resumed>)         = 0x7efceeaa9000
[pid   677] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   676] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   667] <... futex resumed>)        = 0
[pid   679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   676] <... futex resumed>)        = 0
[pid   676] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   679] <... write resumed>)        = 1048576
[pid   679] munmap(0x7efceeaa9000, 1048576) = 0
[pid   679] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4
[pid   679] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   679] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 680 attached
[pid   680] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   680] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   679] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   679] close(4)                    = 0
[pid   679] close(3)                    = 0
[pid   679] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   678] <... futex resumed>)        = 0
[pid   678] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   679] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   679] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   678] <... futex resumed>)        = 0
[pid   678] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   679] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   679] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   678] <... futex resumed>)        = 0
[pid   678] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   679] <... futex resumed>)        = 1
[pid   679] ftruncate(4, 33587195 <unfinished ...>
[pid   667] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] <... madvise resumed>)      = 0
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   675] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   673] <... madvise resumed>)      = 0
[pid   673] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   673] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   670] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   670] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   675] <... futex resumed>)        = 0
[pid   675] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5
[pid   675] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   670] <... futex resumed>)        = 0
[pid   670] exit_group(0)               = ?
[pid   675] <... futex resumed>)        = ?
[pid   675] +++ exited with 0 +++
[pid   670] +++ exited with 0 +++
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=670, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   295] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid   295] ioctl(3, LOOP_CLR_FD)       = 0
[pid   295] close(3)                    = 0
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 681
[pid   669] <... futex resumed>)        = 0
[pid   669] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   673] <... futex resumed>)        = 0
[pid   669] <... futex resumed>)        = 1
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 681 attached
 <unfinished ...>
[pid   681] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   681] setpgid(0, 0)               = 0
[pid   681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   681] write(3, "1000", 4)         = 4
[pid   681] close(3)                    = 0
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   681] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   681] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[682], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 682
[pid   681] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 682 attached
 <unfinished ...>
[pid   682] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   682] memfd_create("syzkaller", 0) = 3
[pid   682] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   682] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   682] munmap(0x7efceeaa9000, 1048576) = 0
[   25.009582][  T302] ------------[ cut here ]------------
[   25.015250][  T302] kernel BUG at fs/ext4/inode.c:2745!
[   25.027249][  T302] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   25.033145][  T302] CPU: 1 PID: 302 Comm: kworker/u4:3 Not tainted 5.15.106-syzkaller-00249-g19c0ed55a470 #0
[   25.042959][  T302] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
[   25.052850][  T302] Workqueue: writeback wb_workfn (flush-7:0)
[pid   682] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4
[pid   682] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   682] ioctl(4, LOOP_CLR_FD)       = 0
[pid   676] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   676] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   676] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   676] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   676] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[683], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 683
[pid   676] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   25.058666][  T302] RIP: 0010:ext4_writepages+0x3fe8/0x4010
[   25.064217][  T302] Code: 89 de e8 ab b0 88 ff 45 84 f6 75 2c e8 11 ae 88 ff 49 be 00 00 00 00 00 fc ff df 4c 8b 64 24 50 e9 e7 c5 ff ff e8 f8 ad 88 ff <0f> 0b e8 f1 ad 88 ff e8 28 43 19 ff eb 93 e8 e5 ad 88 ff e8 1c 43
[   25.083656][  T302] RSP: 0018:ffffc90000a06f60 EFLAGS: 00010293
[   25.089589][  T302] RAX: ffffffff81e73dc8 RBX: 0000008000000000 RCX: ffff88811e808000
[   25.097370][  T302] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
[   25.105180][  T302] RBP: ffffc90000a07370 R08: ffffffff81e73538 R09: ffffed1021fc6bbb
[   25.112992][  T302] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000a07730
[   25.120806][  T302] R13: 0000000000000000 R14: 000000c410000000 R15: 0000000000000001
[   25.128621][  T302] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.137385][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.143802][  T302] CR2: 00007efcf6ef0020 CR3: 0000000111de8000 CR4: 00000000003506a0
[   25.151623][  T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.159431][  T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.167240][  T302] Call Trace:
[   25.170360][  T302]  <TASK>
[   25.173144][  T302]  ? write_cache_pages+0xd37/0xeb0
[   25.178091][  T302]  ? generic_writepages+0x160/0x160
[   25.183125][  T302]  ? tag_pages_for_writeback+0x590/0x590
[   25.188593][  T302]  ? ext4_readpage+0x230/0x230
[   25.193193][  T302]  ? blk_finish_plug+0x4c/0x80
[   25.197792][  T302]  ? __kasan_check_write+0x14/0x20
[   25.202734][  T302]  ? cgroup_get_e_css+0x2d4/0x480
[   25.207598][  T302]  ? ext4_readpage+0x230/0x230
[   25.212199][  T302]  do_writepages+0x40e/0x670
[   25.216635][  T302]  ? __writepage+0x130/0x130
[   25.221060][  T302]  ? __kasan_check_write+0x14/0x20
[   25.226001][  T302]  ? _raw_spin_lock_irqsave+0xf9/0x210
[   25.231295][  T302]  ? __kasan_check_write+0x14/0x20
[   25.236245][  T302]  __writeback_single_inode+0xdf/0xa70
[   25.241538][  T302]  writeback_sb_inodes+0xb2e/0x1910
[   25.246574][  T302]  ? queue_io+0x520/0x520
[   25.250731][  T302]  ? _raw_spin_unlock+0x4d/0x70
[   25.255421][  T302]  __writeback_inodes_wb+0x118/0x3f0
[   25.260554][  T302]  ? queue_io+0x3d0/0x520
[   25.264716][  T302]  wb_writeback+0x3cd/0x9e0
[   25.269057][  T302]  ? inode_cgwb_move_to_attached+0x3c0/0x3c0
[   25.274862][  T302]  ? __kasan_check_write+0x14/0x20
[   25.279811][  T302]  ? cpumask_next+0x8a/0xb0
[   25.284156][  T302]  wb_workfn+0xc12/0x1110
[   25.288318][  T302]  ? __kasan_check_write+0x14/0x20
[   25.293268][  T302]  ? inode_wait_for_writeback+0x280/0x280
[   25.298815][  T302]  ? _raw_spin_unlock_irqrestore+0x5c/0x80
[   25.304459][  T302]  ? try_to_wake_up+0x685/0x1150
[   25.309237][  T302]  ? try_invoke_on_locked_down_task+0x2a0/0x2a0
[   25.315308][  T302]  ? __kasan_check_write+0x14/0x20
[   25.320251][  T302]  ? __kasan_check_read+0x11/0x20
[   25.325111][  T302]  ? read_word_at_a_time+0x12/0x20
[   25.330059][  T302]  ? strscpy+0x9c/0x260
[   25.334050][  T302]  process_one_work+0x6bb/0xc10
[   25.338743][  T302]  worker_thread+0xad5/0x12a0
[   25.343266][  T302]  ? _raw_spin_lock+0x1b0/0x1b0
[   25.347942][  T302]  kthread+0x421/0x510
[   25.351845][  T302]  ? worker_clr_flags+0x180/0x180
[   25.356710][  T302]  ? kthread_blkcg+0xd0/0xd0
[pid   676] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   682] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   682] close(4)                    = 0
[pid   682] close(3 <unfinished ...>
[pid   678] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   678] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   678] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[684], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 684
[pid   678] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   682] <... close resumed>)        = 0
[pid   682] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   681] <... futex resumed>)        = 0
[pid   681] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   682] <... futex resumed>)        = 1
[pid   682] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   682] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   681] <... futex resumed>)        = 0
[pid   681] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   682] <... futex resumed>)        = 1
[pid   682] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   682] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   681] <... futex resumed>)        = 0
[pid   681] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   682] <... futex resumed>)        = 1
[pid   682] ftruncate(4, 33587195./strace-static-x86_64: Process 683 attached
 <unfinished ...>
[pid   683] set_robust_list(0x7efceeba89e0, 24) = 0
./strace-static-x86_64: Process 684 attached
[pid   684] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   684] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   669] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   669] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   676] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   676] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   678] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb67000
[pid   678] mprotect(0x7efceeb68000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   678] clone(child_stack=0x7efceeb873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[685], tls=0x7efceeb87700, child_tidptr=0x7efceeb879d0) = 685
[pid   678] futex(0x7efcf6fa1708, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa170c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   681] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   681] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   681] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[686], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 686
[pid   681] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 685 attached
 <unfinished ...>
[pid   685] set_robust_list(0x7efceeb879e0, 24) = 0
[pid   685] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0./strace-static-x86_64: Process 686 attached
 <unfinished ...>
[pid   686] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   686] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   678] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa171c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb46000
[pid   678] mprotect(0x7efceeb47000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   678] clone(child_stack=0x7efceeb663f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[687], tls=0x7efceeb66700, child_tidptr=0x7efceeb669d0) = 687
[pid   678] futex(0x7efcf6fa1718, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 687 attached
 <unfinished ...>
[pid   687] set_robust_list(0x7efceeb669e0, 24) = 0
[pid   687] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   681] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb67000
[pid   681] mprotect(0x7efceeb68000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   681] clone(child_stack=0x7efceeb873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[688], tls=0x7efceeb87700, child_tidptr=0x7efceeb879d0) = 688
[pid   681] futex(0x7efcf6fa1708, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa170c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 688 attached
 <unfinished ...>
[pid   688] set_robust_list(0x7efceeb879e0, 24) = 0
[pid   688] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   669] exit_group(0)               = ?
[pid   673] +++ exited with 0 +++
[pid   669] +++ exited with 0 +++
[pid   300] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=669, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid   300] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   300] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid   300] ioctl(3, LOOP_CLR_FD)       = 0
[pid   300] close(3)                    = 0
[pid   300] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 689
./strace-static-x86_64: Process 689 attached
[pid   689] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   689] setpgid(0, 0)               = 0
[pid   689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   689] write(3, "1000", 4)         = 4
[pid   689] close(3)                    = 0
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   689] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   689] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[690], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 690
[pid   689] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 690 attached
 <unfinished ...>
[pid   690] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   690] memfd_create("syzkaller", 0) = 3
[pid   690] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   678] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa172c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb25000
[pid   678] mprotect(0x7efceeb26000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   678] clone(child_stack=0x7efceeb453f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[691], tls=0x7efceeb45700, child_tidptr=0x7efceeb459d0) = 691
[pid   678] futex(0x7efcf6fa1728, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   678] futex(0x7efcf6fa172c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   690] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   681] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa171c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb46000
[pid   681] mprotect(0x7efceeb47000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   681] clone(child_stack=0x7efceeb663f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[692], tls=0x7efceeb66700, child_tidptr=0x7efceeb669d0) = 692
[pid   681] futex(0x7efcf6fa1718, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   690] <... write resumed>)        = 1048576
[pid   690] munmap(0x7efceeaa9000, 1048576) = 0
[pid   690] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid   676] exit_group(0)               = ?
[pid   683] +++ exited with 0 +++
[pid   690] <... openat resumed>)       = 4
[pid   690] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   690] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 691 attached
[pid   691] set_robust_list(0x7efceeb459e0, 24) = 0
./strace-static-x86_64: Process 692 attached
[pid   692] set_robust_list(0x7efceeb669e0, 24) = 0
[pid   692] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   690] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   690] close(4)                    = 0
[pid   690] close(3)                    = 0
[pid   690] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   689] <... futex resumed>)        = 0
[pid   689] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   690] <... futex resumed>)        = 1
[pid   690] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   690] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   689] <... futex resumed>)        = 0
[pid   689] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   690] <... futex resumed>)        = 1
[pid   690] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   690] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   689] <... futex resumed>)        = 0
[pid   689] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   690] <... futex resumed>)        = 1
[pid   690] ftruncate(4, 33587195 <unfinished ...>
[pid   678] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   678] futex(0x7efcf6fa172c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   681] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa171c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out)
[pid   681] futex(0x7efcf6fa172c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb25000
[pid   681] mprotect(0x7efceeb26000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   681] clone(child_stack=0x7efceeb453f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[693], tls=0x7efceeb45700, child_tidptr=0x7efceeb459d0) = 693
[pid   681] futex(0x7efcf6fa1728, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   681] futex(0x7efcf6fa172c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 693 attached
 <unfinished ...>
[pid   693] set_robust_list(0x7efceeb459e0, 24) = 0
[pid   689] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   681] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   668] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   667] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   689] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   677] <... madvise resumed>)      = ?
[pid   668] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   667] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] <... futex resumed>)        = 0
[pid   668] <... futex resumed>)        = 1
[pid   667] <... futex resumed>)        = 0
[pid   668] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efceeb88000
[pid   667] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   667] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[695], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 695
[pid   667] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   667] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 695 attached
 <unfinished ...>
[pid   695] set_robust_list(0x7efceeba89e0, 24) = 0
[pid   691] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   689] <... futex resumed>)        = 0
[pid   680] <... madvise resumed>)      = 0
[pid   677] +++ exited with 0 +++
[pid   676] +++ exited with 0 +++
[pid   695] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   691] <... openat resumed>)       = 5
[pid   689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   680] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   679] <... ftruncate resumed>)    = 0
[pid   691] futex(0x7efcf6fa172c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   689] <... mmap resumed>)         = 0x7efceeb88000
[pid   680] <... futex resumed>)        = 0
[pid   293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=676, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   691] <... futex resumed>)        = 0
[pid   689] mprotect(0x7efceeb89000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   680] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   293] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid   691] futex(0x7efcf6fa1728, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   689] <... mprotect resumed>)     = 0
[pid   293] <... openat resumed>)       = 3
[pid   689] clone(child_stack=0x7efceeba83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   293] ioctl(3, LOOP_CLR_FD)       = 0
[pid   689] <... clone resumed>, parent_tid=[696], tls=0x7efceeba8700, child_tidptr=0x7efceeba89d0) = 696
[pid   293] close(3 <unfinished ...>
[pid   689] futex(0x7efcf6fa16f8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   293] <... close resumed>)        = 0
[pid   689] <... futex resumed>)        = 0
[pid   293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   689] futex(0x7efcf6fa16fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   293] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 697
[   25.361134][  T302]  ret_from_fork+0x1f/0x30
[   25.365386][  T302]  </TASK>
[   25.368248][  T302] Modules linked in:
[   25.375833][  T302] ---[ end trace 94381bd46178944e ]---
[   25.382480][  T302] RIP: 0010:ext4_writepages+0x3fe8/0x4010
[   25.388240][  T302] Code: 89 de e8 ab b0 88 ff 45 84 f6 75 2c e8 11 ae 88 ff 49 be 00 00 00 00 00 fc ff df 4c 8b 64 24 50 e9 e7 c5 ff ff e8 f8 ad 88 ff <0f> 0b e8 f1 ad 88 ff e8 28 43 19 ff eb 93 e8 e5 ad 88 ff e8 1c 43
./strace-static-x86_64: Process 697 attached
./strace-static-x86_64: Process 696 attached
[pid   695] <... openat resumed>)       = 5
[pid   693] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   688] <... mmap resumed>)         = 0x20000000
[pid   686] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   685] <... mmap resumed>)         = 0x20000000
[pid   684] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   682] <... ftruncate resumed>)    = 0
[pid   679] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] openat(AT_FDCWD, 0x20000000, O_RDONLY <unfinished ...>
[pid   686] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   684] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   686] <... futex resumed>)        = 0
[pid   684] <... futex resumed>)        = 0
[pid   686] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   684] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   697] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   696] set_robust_list(0x7efceeba89e0, 24 <unfinished ...>
[pid   695] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   688] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   685] futex(0x7efcf6fa170c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   682] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   679] <... futex resumed>)        = 0
[pid   668] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   667] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid   697] <... set_robust_list resumed>) = 0
[pid   696] <... set_robust_list resumed>) = 0
[pid   695] <... futex resumed>)        = 0
[pid   688] <... futex resumed>)        = 0
[pid   685] <... futex resumed>)        = 0
[pid   682] <... futex resumed>)        = 0
[pid   679] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   697] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   696] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   695] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   687] <... madvise resumed>)      = 0
[pid   687] futex(0x7efcf6fa171c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   687] futex(0x7efcf6fa1718, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   688] futex(0x7efcf6fa1708, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   685] futex(0x7efcf6fa1708, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   678] exit_group(0 <unfinished ...>
[pid   691] <... futex resumed>)        = ?
[pid   685] <... futex resumed>)        = ?
[pid   684] <... futex resumed>)        = ?
[pid   678] <... exit_group resumed>)   = ?
[pid   691] +++ exited with 0 +++
[pid   685] +++ exited with 0 +++
[pid   684] +++ exited with 0 +++
[pid   687] <... futex resumed>)        = ?
[pid   687] +++ exited with 0 +++
[pid   697] <... prctl resumed>)        = 0
[pid   682] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   697] setpgid(0, 0 <unfinished ...>
[pid   693] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid   692] <... madvise resumed>)      = 0
[pid   679] <... futex resumed>)        = ?
[pid   674] <... openat resumed>)       = -1 ENOENT (No such file or directory)
[pid   697] <... setpgid resumed>)      = 0
[pid   696] <... sendfile resumed>)     = 4
[pid   693] futex(0x7efcf6fa172c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   692] futex(0x7efcf6fa171c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   690] <... ftruncate resumed>)    = 0
[pid   679] +++ exited with 0 +++
[pid   678] +++ exited with 0 +++
[pid   674] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   672] <... madvise resumed>)      = 0
[pid   697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   696] futex(0x7efcf6fa16fc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] <... futex resumed>)        = 0
[pid   697] <... openat resumed>)       = 3
[pid   696] <... futex resumed>)        = 1
[pid   674] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   697] write(3, "1000", 4 <unfinished ...>
[pid   696] futex(0x7efcf6fa16f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   697] <... write resumed>)        = 4
[pid   697] close(3)                    = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   697] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   697] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[698], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 698
[pid   668] exit_group(0 <unfinished ...>
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   674] <... futex resumed>)        = ?
[pid   668] <... exit_group resumed>)   = ?
[pid   697] <... futex resumed>)        = 0
[pid   674] +++ exited with 0 +++
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 698 attached
 <unfinished ...>
[pid   698] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   698] memfd_create("syzkaller", 0) = 3
[pid   698] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[pid   698] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   693] <... futex resumed>)        = 0
[pid   692] <... futex resumed>)        = 0
[pid   693] futex(0x7efcf6fa1728, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   690] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   689] <... futex resumed>)        = 0
[pid   681] exit_group(0 <unfinished ...>
[pid   692] futex(0x7efcf6fa1718, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   680] <... futex resumed>)        = ?
[pid   672] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=678, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   690] <... futex resumed>)        = 0
[pid   689] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   681] <... exit_group resumed>)   = ?
[pid   682] <... futex resumed>)        = ?
[pid   682] +++ exited with 0 +++
[pid   667] exit_group(0 <unfinished ...>
[pid   695] <... futex resumed>)        = ?
[pid   667] <... exit_group resumed>)   = ?
[pid   695] +++ exited with 0 +++
[pid   680] +++ exited with 0 +++
[pid   668] +++ exited with 0 +++
[pid   672] <... futex resumed>)        = ? <unavailable>
[pid   690] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   689] <... futex resumed>)        = 0
[pid   693] <... futex resumed>)        = ?
[pid   692] <... futex resumed>)        = ?
[pid   688] <... futex resumed>)        = ?
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   686] <... futex resumed>)        = ?
[pid   299] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=668, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid   299] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid   299] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid   299] ioctl(3, LOOP_CLR_FD)       = 0
[pid   299] close(3)                    = 0
[pid   299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c5e5d0) = 699
[pid   698] <... write resumed>)        = 1048576
[pid   698] munmap(0x7efceeaa9000, 1048576) = 0
[pid   698] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   698] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   698] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 699 attached
[pid   699] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   699] setpgid(0, 0)               = 0
[pid   699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   699] write(3, "1000", 4)         = 4
[pid   699] close(3)                    = 0
[pid   699] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   699] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   698] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   698] close(4)                    = 0
[pid   698] close(3)                    = 0
[pid   698] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   697] <... futex resumed>)        = 0
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   698] <... futex resumed>)        = 1
[pid   698] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3
[pid   698] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   697] <... futex resumed>)        = 0
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   698] <... futex resumed>)        = 1
[pid   698] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4
[pid   698] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   697] <... futex resumed>)        = 0
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   698] <... futex resumed>)        = 1
[pid   698] ftruncate(4, 33587195 <unfinished ...>
[pid   699] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   692] +++ exited with 0 +++
[pid   686] +++ exited with 0 +++
[pid   693] +++ exited with 0 +++
[pid   688] +++ exited with 0 +++
[pid   672] +++ exited with 0 +++
[pid   667] +++ exited with 0 +++
[pid   698] <... ftruncate resumed>)    = 0
[pid   698] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   697] <... futex resumed>)        = 0
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   698] <... futex resumed>)        = 1
[pid   698] sendfile(3, 4, NULL, 4 <unfinished ...>
[pid   699] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   699] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   698] <... sendfile resumed>)     = -1 EINVAL (Invalid argument)
[pid   698] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   697] <... futex resumed>)        = 0
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   698] <... futex resumed>)        = 1
[pid   698] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 <unfinished ...>
[pid   699] <... clone resumed>, parent_tid=[700], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 700
[pid   699] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   25.428726][  T302] RSP: 0018:ffffc90000a06f60 EFLAGS: 00010293
[   25.435347][  T302] RAX: ffffffff81e73dc8 RBX: 0000008000000000 RCX: ffff88811e808000
[   25.443769][  T302] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
[   25.452095][  T302] RBP: ffffc90000a07370 R08: ffffffff81e73538 R09: ffffed1021fc6bbb
[   25.460990][  T302] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000a07730
[pid   699] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   681] +++ exited with 0 +++
[pid   294] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 700 attached
 <unfinished ...>
[pid   301] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=667, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid   295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=681, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid   700] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   294] <... openat resumed>)       = 3
[pid   700] <... set_robust_list resumed>) = 0
[pid   294] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   301] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid   295] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid   294] <... ioctl resumed>)        = 0
[pid   301] <... openat resumed>)       = 3
[pid   295] <... openat resumed>)       = 3
[pid   301] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   295] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid   294] close(3 <unfinished ...>
[pid   301] <... ioctl resumed>)        = 0
[pid   295] <... ioctl resumed>)        = 0
[pid   301] close(3 <unfinished ...>
[pid   295] close(3 <unfinished ...>
[pid   294] <... close resumed>)        = 0
[pid   294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] <... close resumed>)        = 0
[pid   301] <... close resumed>)        = 0
[pid   301] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid   294] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 701
[pid   301] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 702
[pid   295] <... clone resumed>, child_tidptr=0x555556c5e5d0) = 703
./strace-static-x86_64: Process 702 attached
[pid   702] set_robust_list(0x555556c5e5e0, 24) = 0
[pid   702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
./strace-static-x86_64: Process 703 attached
./strace-static-x86_64: Process 701 attached
[pid   700] memfd_create("syzkaller", 0 <unfinished ...>
[pid   690] <... mmap resumed>)         = 0x20000000
[pid   702] setpgid(0, 0)               = 0
[pid   702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid   702] write(3, "1000", 4)         = 4
[pid   702] close(3)                    = 0
[pid   702] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   702] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7efcf6ea9000
[pid   702] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   702] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[704], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 704
[pid   702] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   702] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   703] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   701] set_robust_list(0x555556c5e5e0, 24 <unfinished ...>
[pid   700] <... memfd_create resumed>) = 3
[pid   690] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   703] <... set_robust_list resumed>) = 0
[pid   701] <... set_robust_list resumed>) = 0
[pid   698] <... mmap resumed>)         = 0x20000000
[pid   698] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   697] <... futex resumed>)        = 0
[pid   697] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   697] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   698] <... futex resumed>)        = 1
[pid   698] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 704 attached
 <unfinished ...>
[pid   703] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   701] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid   700] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid   690] <... futex resumed>)        = 1
[pid   689] <... futex resumed>)        = 0
[pid   704] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   700] <... mmap resumed>)         = 0x7efceeaa9000
[pid   690] futex(0x7efcf6fa16e8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   689] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   701] <... prctl resumed>)        = 0
[pid   703] <... prctl resumed>)        = 0
[pid   704] <... set_robust_list resumed>) = 0
[pid   704] memfd_create("syzkaller", 0) = 3
[pid   704] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7efceeaa9000
[   25.486106][  T302] R13: 0000000000000000 R14: 000000c410000000 R15: 0000000000000001
[   25.499370][  T302] FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
[   25.517690][  T302] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.524583][  T302] CR2: 00007efcf6fa5888 CR3: 000000011df1e000 CR4: 00000000003506a0
[pid   704] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   700] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 <unfinished ...>
[pid   690] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid   689] <... futex resumed>)        = 0
[pid   701] setpgid(0, 0 <unfinished ...>
[pid   703] setpgid(0, 0 <unfinished ...>
[pid   701] <... setpgid resumed>)      = 0
[pid   690] madvise(0x20000000, 6291467, MADV_REMOVE <unfinished ...>
[pid   689] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   703] <... setpgid resumed>)      = 0
[pid   701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid   701] <... openat resumed>)       = 3
[pid   703] <... openat resumed>)       = 3
[pid   701] write(3, "1000", 4 <unfinished ...>
[pid   703] write(3, "1000", 4 <unfinished ...>
[pid   701] <... write resumed>)        = 4
[pid   703] <... write resumed>)        = 4
[pid   701] close(3 <unfinished ...>
[pid   703] close(3)                    = 0
[pid   701] <... close resumed>)        = 0
[pid   703] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   701] futex(0x7efcf6fa16ec, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   703] <... futex resumed>)        = 0
[pid   701] <... futex resumed>)        = 0
[pid   703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 <unfinished ...>
[pid   703] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   701] <... mmap resumed>)         = 0x7efcf6ea9000
[pid   703] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   701] mprotect(0x7efcf6eaa000, 131072, PROT_READ|PROT_WRITE <unfinished ...>
[pid   703] <... mprotect resumed>)     = 0
[pid   701] <... mprotect resumed>)     = 0
[pid   703] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   701] clone(child_stack=0x7efcf6ec93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID <unfinished ...>
[pid   703] <... clone resumed>, parent_tid=[705], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 705
[pid   701] <... clone resumed>, parent_tid=[706], tls=0x7efcf6ec9700, child_tidptr=0x7efcf6ec99d0) = 706
[pid   703] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   701] futex(0x7efcf6fa16e8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   703] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   701] <... futex resumed>)        = 0
[pid   701] futex(0x7efcf6fa16ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid   700] <... write resumed>)        = 1048576
[pid   704] <... write resumed>)        = 1048576
[pid   704] munmap(0x7efceeaa9000, 1048576) = 0
[pid   704] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4
[pid   704] ioctl(4, LOOP_SET_FD, 3)    = -1 EBUSY (Device or resource busy)
[pid   704] ioctl(4, LOOP_CLR_FD)       = 0
./strace-static-x86_64: Process 705 attached
./strace-static-x86_64: Process 706 attached
[pid   705] set_robust_list(0x7efcf6ec99e0, 24 <unfinished ...>
[pid   706] set_robust_list(0x7efcf6ec99e0, 24) = 0
[pid   704] ioctl(4, LOOP_SET_FD, 3 <unfinished ...>
[pid   700] munmap(0x7efceeaa9000, 1048576 <unfinished ...>
[pid   704] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid   704] close(4)                    = 0
[pid   704] close(3 <unfinished ...>
[pid   705] <... set_robust_list resumed>) = 0
[pid   706] memfd_create("syzkaller", 0 <unfinished ...>
[pid   705] memfd_create("syzkaller", 0) = 3
[pid   706] <... memfd_create resumed>) = 3
[   25.533347][  T302] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.550176][  T302] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.558062][  T302] Kernel panic - not syncing: Fatal exception
[   25.564031][  T302] Kernel Offset: disabled
[   25.568162][  T302] Rebooting in 86400 seconds..