./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2054711037

<...>
Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts.
execve("./syz-executor2054711037", ["./syz-executor2054711037"], 0x7ffd6fc4d940 /* 10 vars */) = 0
brk(NULL)                               = 0x555556a29000
brk(0x555556a29d00)                     = 0x555556a29d00
arch_prctl(ARCH_SET_FS, 0x555556a293c0) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2054711037", 4096) = 28
brk(0x555556a4ad00)                     = 0x555556a4ad00
brk(0x555556a4b000)                     = 0x555556a4b000
mprotect(0x7f86976d9000, 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
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f869762a0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f869762abb0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f869762a0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f869762abb0}, NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3607 attached
, child_tidptr=0x555556a29690) = 3607
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3608 attached
) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x555556a29690) = 3608
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3609 attached
) = 3
[pid  3607] close(3 <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x555556a29690) = 3609
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3610 attached
 <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3609] <... openat resumed>)       = 3
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3608] <... close resumed>)        = 0
[pid  3609] close(3 <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3609] <... close resumed>)        = 0
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556a29690) = 3612
[pid  3607] <... clone resumed>, child_tidptr=0x555556a29690) = 3611
[pid  3610] close(3)                    = 0
[pid  3609] <... clone resumed>, child_tidptr=0x555556a29690) = 3613
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3614
./strace-static-x86_64: Process 3614 attached
[pid  3606] <... clone resumed>, child_tidptr=0x555556a29690) = 3610
./strace-static-x86_64: Process 3613 attached
./strace-static-x86_64: Process 3612 attached
./strace-static-x86_64: Process 3611 attached
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3615
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3614] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3613] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x555556a29690) = 3616
[pid  3614] <... prctl resumed>)        = 0
[pid  3614] setpgid(0, 0)               = 0
[pid  3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3613] <... prctl resumed>)        = 0
./strace-static-x86_64: Process 3616 attached
[pid  3614] <... openat resumed>)       = 3
[pid  3611] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3614] write(3, "1000", 4 <unfinished ...>
[pid  3613] setpgid(0, 0 <unfinished ...>
[pid  3611] <... prctl resumed>)        = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3614] <... write resumed>)        = 4
[pid  3616] <... openat resumed>)       = 3
[pid  3614] close(3 <unfinished ...>
[pid  3613] <... setpgid resumed>)      = 0
[pid  3612] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3611] setpgid(0, 0 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3614] <... close resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3614] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3614] <... mkdir resumed>)        = 0
[pid  3616] <... close resumed>)        = 0
[pid  3614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3614] pipe2([3, 4], 0)            = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556a29690) = 3618
[pid  3614] dup(4)                      = 5
[pid  3614] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3615 attached
 <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3612] <... prctl resumed>)        = 0
[pid  3611] <... setpgid resumed>)      = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3613] <... openat resumed>)       = 3
[pid  3612] setpgid(0, 0 <unfinished ...>
[pid  3611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3618 attached
 <unfinished ...>
[pid  3618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3618] setpgid(0, 0 <unfinished ...>
[pid  3613] write(3, "1000", 4 <unfinished ...>
[pid  3618] <... setpgid resumed>)      = 0
[pid  3612] <... setpgid resumed>)      = 0
[pid  3611] <... openat resumed>)       = 3
[pid  3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3613] <... write resumed>)        = 4
[pid  3618] <... openat resumed>)       = 3
[pid  3612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3611] write(3, "1000", 4 <unfinished ...>
[pid  3618] write(3, "1000", 4)         = 4
[pid  3618] close(3)                    = 0
[pid  3618] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3613] close(3 <unfinished ...>
[pid  3611] <... write resumed>)        = 4
[pid  3612] <... openat resumed>)       = 3
[pid  3618] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] close(3 <unfinished ...>
[pid  3613] <... close resumed>)        = 0
[pid  3612] write(3, "1000", 4 <unfinished ...>
[pid  3611] close(3 <unfinished ...>
[pid  3618] pipe2( <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3613] mkdir("./file0", 0777 <unfinished ...>
[pid  3612] <... write resumed>)        = 4
[pid  3611] <... close resumed>)        = 0
[pid  3618] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3612] close(3 <unfinished ...>
[pid  3611] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] dup(4)                      = 5
[pid  3613] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3611] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556a29690) = 3619
[pid  3613] pipe2( <unfinished ...>
[pid  3612] <... close resumed>)        = 0
[pid  3611] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3619 attached
[pid  3613] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3612] mkdir("./file0", 0777 <unfinished ...>
[pid  3611] pipe2( <unfinished ...>
[pid  3619] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3613] dup(4 <unfinished ...>
[pid  3612] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3611] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... prctl resumed>)        = 0
[pid  3613] <... dup resumed>)          = 5
[pid  3612] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3611] dup(4 <unfinished ...>
[pid  3619] setpgid(0, 0 <unfinished ...>
[pid  3613] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3612] pipe2( <unfinished ...>
[pid  3611] <... dup resumed>)          = 5
[pid  3619] <... setpgid resumed>)      = 0
[pid  3612] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3611] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3612] dup(4 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3612] <... dup resumed>)          = 5
[pid  3619] write(3, "1000", 4 <unfinished ...>
[pid  3612] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3619] <... write resumed>)        = 4
[pid  3619] close(3)                    = 0
[pid  3619] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] pipe2([3, 4], 0)            = 0
[pid  3619] dup(4)                      = 5
[pid  3619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3614] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3614] exit_group(0)               = ?
[pid  3614] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3614, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3620
./strace-static-x86_64: Process 3620 attached
[pid  3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3620] setpgid(0, 0)               = 0
[pid  3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3620] write(3, "1000", 4)         = 4
[pid  3620] close(3)                    = 0
[pid  3620] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] pipe2([3, 4], 0)            = 0
[pid  3620] dup(4)                      = 5
[pid  3620] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3618] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] exit_group(0)               = ?
[pid  3618] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3618, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3621
./strace-static-x86_64: Process 3621 attached
[pid  3621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3621] setpgid(0, 0)               = 0
[pid  3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3621] write(3, "1000", 4)         = 4
[pid  3621] close(3)                    = 0
[pid  3621] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3621] pipe2([3, 4], 0)            = 0
[pid  3621] dup(4)                      = 5
[pid  3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3611] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3611] exit_group(0)               = ?
[pid  3611] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3611, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3624
[pid  3620] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] exit_group(0)               = ?
[pid  3620] +++ exited with 0 +++
./strace-static-x86_64: Process 3624 attached
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3624] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3624] <... prctl resumed>)        = 0
[pid  3610] <... openat resumed>)       = 3
[pid  3624] setpgid(0, 0 <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3624] <... setpgid resumed>)      = 0
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3624] <... openat resumed>)       = 3
[pid  3610] <... close resumed>)        = 0
[pid  3624] write(3, "1000", 4 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3624] <... write resumed>)        = 4
[pid  3624] close(3 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3626
[pid  3624] <... close resumed>)        = 0
./strace-static-x86_64: Process 3626 attached
[pid  3626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3626] setpgid(0, 0)               = 0
[pid  3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3624] mkdir("./file0", 0777 <unfinished ...>
[pid  3612] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3626] write(3, "1000", 4 <unfinished ...>
[pid  3624] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3612] exit_group(0 <unfinished ...>
[pid  3626] <... write resumed>)        = 4
[pid  3624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3612] <... exit_group resumed>)   = ?
[pid  3626] close(3 <unfinished ...>
[pid  3624] pipe2( <unfinished ...>
[pid  3626] <... close resumed>)        = 0
[pid  3624] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3612] +++ exited with 0 +++
[pid  3626] mkdir("./file0", 0777 <unfinished ...>
[pid  3624] dup(4 <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3612, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3626] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3624] <... dup resumed>)          = 5
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3626] pipe2([3, 4], 0)            = 0
[pid  3626] dup(4 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3626] <... dup resumed>)          = 5
[pid  3608] <... openat resumed>)       = 3
[pid  3626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3627
./strace-static-x86_64: Process 3627 attached
[pid  3627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3627] setpgid(0, 0)               = 0
[pid  3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3627] write(3, "1000", 4)         = 4
[pid  3627] close(3 <unfinished ...>
[pid  3613] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3627] <... close resumed>)        = 0
[pid  3613] exit_group(0 <unfinished ...>
[pid  3627] mkdir("./file0", 0777 <unfinished ...>
[pid  3613] <... exit_group resumed>)   = ?
[pid  3627] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3613] +++ exited with 0 +++
[pid  3627] pipe2( <unfinished ...>
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3613, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3627] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3609] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3627] dup(4 <unfinished ...>
[pid  3619] exit_group(0 <unfinished ...>
[pid  3609] <... restart_syscall resumed>) = 0
[pid  3627] <... dup resumed>)          = 5
[pid  3619] <... exit_group resumed>)   = ?
[pid  3627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3619] +++ exited with 0 +++
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3609] <... openat resumed>)       = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3609] <... clone resumed>, child_tidptr=0x555556a29690) = 3630
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3631
./strace-static-x86_64: Process 3630 attached
[pid  3626] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3631 attached
[pid  3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3631] setpgid(0, 0)               = 0
[pid  3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3626] exit_group(0 <unfinished ...>
[pid  3630] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3631] write(3, "1000", 4 <unfinished ...>
[pid  3630] <... prctl resumed>)        = 0
[pid  3626] <... exit_group resumed>)   = ?
[pid  3631] <... write resumed>)        = 4
[pid  3630] setpgid(0, 0 <unfinished ...>
[pid  3631] close(3 <unfinished ...>
[pid  3630] <... setpgid resumed>)      = 0
[pid  3626] +++ exited with 0 +++
[pid  3631] <... close resumed>)        = 0
[pid  3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3631] mkdir("./file0", 0777 <unfinished ...>
[pid  3630] <... openat resumed>)       = 3
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3631] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3630] write(3, "1000", 4 <unfinished ...>
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3630] <... write resumed>)        = 4
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3631] pipe2( <unfinished ...>
[pid  3630] close(3 <unfinished ...>
[pid  3631] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3630] <... close resumed>)        = 0
[pid  3631] dup(4 <unfinished ...>
[pid  3630] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3631] <... dup resumed>)          = 5
[pid  3630] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] <... openat resumed>)       = 3
[pid  3631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3632
./strace-static-x86_64: Process 3632 attached
[pid  3630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3630] pipe2( <unfinished ...>
[pid  3632] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3630] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3632] <... prctl resumed>)        = 0
[pid  3630] dup(4 <unfinished ...>
[pid  3632] setpgid(0, 0 <unfinished ...>
[pid  3630] <... dup resumed>)          = 5
[pid  3632] <... setpgid resumed>)      = 0
[pid  3630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3632] write(3, "1000", 4)         = 4
[pid  3632] close(3 <unfinished ...>
[pid  3621] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3621] exit_group(0)               = ?
[pid  3621] +++ exited with 0 +++
[pid  3632] <... close resumed>)        = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3632] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3632] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] <... openat resumed>)       = 3
[pid  3632] pipe2( <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  3632] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] <... close resumed>)        = 0
[pid  3632] dup(4 <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3632] <... dup resumed>)          = 5
[pid  3632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3633 attached
 <unfinished ...>
[pid  3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556a29690) = 3633
[pid  3633] setpgid(0, 0)               = 0
[pid  3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3633] write(3, "1000", 4)         = 4
[pid  3633] close(3)                    = 0
[pid  3633] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3633] pipe2([3, 4], 0)            = 0
[pid  3633] dup(4)                      = 5
[pid  3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3624] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3624] exit_group(0)               = ?
[pid  3624] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3634
./strace-static-x86_64: Process 3634 attached
[pid  3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3634] setpgid(0, 0)               = 0
[pid  3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3634] write(3, "1000", 4)         = 4
[pid  3634] close(3)                    = 0
[pid  3634] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3634] pipe2([3, 4], 0)            = 0
[pid  3634] dup(4)                      = 5
[pid  3634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3630] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3630] exit_group(0)               = ?
[pid  3630] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3635
./strace-static-x86_64: Process 3635 attached
[pid  3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3635] setpgid(0, 0)               = 0
[pid  3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3635] write(3, "1000", 4)         = 4
[pid  3635] close(3)                    = 0
[pid  3635] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3635] pipe2([3, 4], 0)            = 0
[pid  3635] dup(4)                      = 5
[pid  3635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3631] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3631] exit_group(0)               = ?
[pid  3631] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3615] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3636
./strace-static-x86_64: Process 3636 attached
[pid  3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3636] setpgid(0, 0)               = 0
[pid  3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3636] write(3, "1000", 4)         = 4
[pid  3636] close(3)                    = 0
[pid  3636] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3636] pipe2([3, 4], 0)            = 0
[pid  3636] dup(4)                      = 5
[pid  3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3627] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3627] exit_group(0)               = ?
[pid  3627] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3637
./strace-static-x86_64: Process 3637 attached
[pid  3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3637] setpgid(0, 0)               = 0
[pid  3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3637] write(3, "1000", 4)         = 4
[pid  3637] close(3)                    = 0
[pid  3637] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3637] pipe2([3, 4], 0)            = 0
[pid  3637] dup(4)                      = 5
[pid  3637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3633] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3633] exit_group(0)               = ?
[pid  3633] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3638
[pid  3632] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3632] exit_group(0)               = ?
./strace-static-x86_64: Process 3638 attached
[pid  3632] +++ exited with 0 +++
[pid  3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3638] setpgid(0, 0 <unfinished ...>
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3638] <... setpgid resumed>)      = 0
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3638] <... openat resumed>)       = 3
[pid  3610] <... openat resumed>)       = 3
[pid  3638] write(3, "1000", 4 <unfinished ...>
[pid  3634] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3638] <... write resumed>)        = 4
[pid  3634] exit_group(0 <unfinished ...>
[pid  3638] close(3 <unfinished ...>
[pid  3634] <... exit_group resumed>)   = ?
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3638] <... close resumed>)        = 0
[pid  3634] +++ exited with 0 +++
[pid  3638] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3638] pipe2([3, 4], 0)            = 0
[pid  3638] dup(4)                      = 5
[pid  3638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3610] close(3)                    = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3639
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3640
./strace-static-x86_64: Process 3639 attached
[pid  3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3639] setpgid(0, 0)               = 0
[pid  3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3639] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3640 attached
[pid  3639] close(3 <unfinished ...>
[pid  3640] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3639] <... close resumed>)        = 0
[pid  3640] <... prctl resumed>)        = 0
[pid  3639] mkdir("./file0", 0777 <unfinished ...>
[pid  3640] setpgid(0, 0 <unfinished ...>
[pid  3639] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3640] <... setpgid resumed>)      = 0
[pid  3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3639] pipe2( <unfinished ...>
[pid  3640] <... openat resumed>)       = 3
[pid  3639] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3640] write(3, "1000", 4 <unfinished ...>
[pid  3639] dup(4 <unfinished ...>
[pid  3640] <... write resumed>)        = 4
[pid  3639] <... dup resumed>)          = 5
[pid  3640] close(3 <unfinished ...>
[pid  3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3640] <... close resumed>)        = 0
[pid  3640] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3640] pipe2([3, 4], 0)            = 0
[pid  3640] dup(4)                      = 5
[pid  3640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3635] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3635] exit_group(0)               = ?
[pid  3635] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3641
[pid  3636] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3636] exit_group(0)               = ?
[pid  3636] +++ exited with 0 +++
./strace-static-x86_64: Process 3641 attached
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3641] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3641] <... prctl resumed>)        = 0
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3641] setpgid(0, 0 <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3642
./strace-static-x86_64: Process 3642 attached
[pid  3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3642] setpgid(0, 0)               = 0
[pid  3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3642] write(3, "1000", 4)         = 4
[pid  3642] close(3)                    = 0
[pid  3642] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3642] pipe2( <unfinished ...>
[pid  3641] <... setpgid resumed>)      = 0
[pid  3642] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3642] dup(4 <unfinished ...>
[pid  3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3642] <... dup resumed>)          = 5
[pid  3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3641] <... openat resumed>)       = 3
[pid  3641] write(3, "1000", 4)         = 4
[pid  3641] close(3)                    = 0
[pid  3641] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3641] pipe2([3, 4], 0)            = 0
[pid  3641] dup(4)                      = 5
[pid  3641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3637] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3637] exit_group(0)               = ?
[pid  3637] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3643
./strace-static-x86_64: Process 3643 attached
[pid  3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3643] setpgid(0, 0)               = 0
[pid  3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3643] write(3, "1000", 4)         = 4
[pid  3643] close(3)                    = 0
[pid  3643] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3643] pipe2([3, 4], 0)            = 0
[pid  3643] dup(4)                      = 5
[pid  3643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3638] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3638] exit_group(0)               = ?
[pid  3638] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3644
./strace-static-x86_64: Process 3644 attached
[pid  3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3644] setpgid(0, 0)               = 0
[pid  3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3644] write(3, "1000", 4)         = 4
[pid  3644] close(3)                    = 0
[pid  3644] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3644] pipe2([3, 4], 0)            = 0
[pid  3644] dup(4)                      = 5
[pid  3644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3639] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3639] exit_group(0)               = ?
[pid  3639] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3645
./strace-static-x86_64: Process 3645 attached
[pid  3645] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3640] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3640] exit_group(0)               = ?
[pid  3640] +++ exited with 0 +++
[pid  3645] <... prctl resumed>)        = 0
[pid  3645] setpgid(0, 0 <unfinished ...>
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3 <unfinished ...>
[pid  3645] <... setpgid resumed>)      = 0
[pid  3607] <... close resumed>)        = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3646
[pid  3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3645] write(3, "1000", 4)         = 4
[pid  3645] close(3)                    = 0
[pid  3645] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3645] pipe2([3, 4], 0)            = 0
[pid  3645] dup(4)                      = 5
[pid  3645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3646 attached
 <unfinished ...>
[pid  3642] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3642] exit_group(0)               = ?
[pid  3642] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3646] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3646] <... prctl resumed>)        = 0
[pid  3615] close(3 <unfinished ...>
[pid  3646] setpgid(0, 0 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3646] <... setpgid resumed>)      = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3615] <... clone resumed>, child_tidptr=0x555556a29690) = 3647
[pid  3646] write(3, "1000", 4)         = 4
[pid  3646] close(3)                    = 0
[pid  3646] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3646] pipe2(./strace-static-x86_64: Process 3647 attached
[3, 4], 0)            = 0
[pid  3641] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3647] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3641] exit_group(0 <unfinished ...>
[pid  3647] <... prctl resumed>)        = 0
[pid  3641] <... exit_group resumed>)   = ?
[pid  3647] setpgid(0, 0 <unfinished ...>
[pid  3641] +++ exited with 0 +++
[pid  3647] <... setpgid resumed>)      = 0
[pid  3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3647] write(3, "1000", 4)         = 4
[pid  3647] close(3)                    = 0
[pid  3647] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3647] pipe2([3, 4], 0)            = 0
[pid  3647] dup(4)                      = 5
[pid  3647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3646] dup(4)                      = 5
[pid  3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3648 attached
 <unfinished ...>
[pid  3643] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3643] exit_group(0 <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x555556a29690) = 3648
[pid  3648] setpgid(0, 0 <unfinished ...>
[pid  3643] <... exit_group resumed>)   = ?
[pid  3648] <... setpgid resumed>)      = 0
[pid  3643] +++ exited with 0 +++
[pid  3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3648] <... openat resumed>)       = 3
[pid  3648] write(3, "1000", 4)         = 4
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3648] close(3 <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3648] <... close resumed>)        = 0
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3648] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3648] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] close(3 <unfinished ...>
[pid  3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... close resumed>)        = 0
[pid  3648] pipe2( <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3648] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3648] dup(4 <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556a29690) = 3649
[pid  3648] <... dup resumed>)          = 5
[pid  3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3649 attached
 <unfinished ...>
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3649] setpgid(0, 0)               = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3649] write(3, "1000", 4)         = 4
[pid  3649] close(3)                    = 0
[pid  3649] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3649] pipe2([3, 4], 0)            = 0
[pid  3649] dup(4)                      = 5
[pid  3649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3644] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3644] exit_group(0)               = ?
[pid  3644] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3650 attached
, child_tidptr=0x555556a29690) = 3650
[pid  3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3650] setpgid(0, 0)               = 0
[pid  3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3650] write(3, "1000", 4)         = 4
[pid  3650] close(3)                    = 0
[pid  3650] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3650] pipe2([3, 4], 0)            = 0
[pid  3650] dup(4)                      = 5
[pid  3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3645] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3645] exit_group(0)               = ?
[pid  3645] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3651
./strace-static-x86_64: Process 3651 attached
[pid  3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3651] setpgid(0, 0)               = 0
[pid  3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3651] write(3, "1000", 4)         = 4
[pid  3651] close(3)                    = 0
[pid  3651] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3651] pipe2( <unfinished ...>
[pid  3647] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3651] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3651] dup(4 <unfinished ...>
[pid  3647] exit_group(0 <unfinished ...>
[pid  3651] <... dup resumed>)          = 5
[pid  3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3647] <... exit_group resumed>)   = ?
[pid  3647] +++ exited with 0 +++
[pid  3646] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3646] exit_group(0)               = ?
[pid  3646] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3615] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] <... clone resumed>, child_tidptr=0x555556a29690) = 3652
./strace-static-x86_64: Process 3652 attached
[pid  3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3652] setpgid(0, 0 <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3652] <... setpgid resumed>)      = 0
[pid  3648] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... openat resumed>)       = 3
[pid  3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3648] exit_group(0 <unfinished ...>
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3652] <... openat resumed>)       = 3
[pid  3648] <... exit_group resumed>)   = ?
[pid  3652] write(3, "1000", 4 <unfinished ...>
[pid  3648] +++ exited with 0 +++
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3652] <... write resumed>)        = 4
[pid  3615] close(3 <unfinished ...>
[pid  3652] close(3 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3652] <... close resumed>)        = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3652] mkdir("./file0", 0777 <unfinished ...>
[pid  3609] <... openat resumed>)       = 3
[pid  3652] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] <... clone resumed>, child_tidptr=0x555556a29690) = 3653
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3652] pipe2( <unfinished ...>
[pid  3609] close(3 <unfinished ...>
[pid  3652] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3609] <... close resumed>)        = 0
[pid  3652] dup(4 <unfinished ...>
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3652] <... dup resumed>)          = 5
./strace-static-x86_64: Process 3653 attached
[pid  3652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x555556a29690) = 3654
[pid  3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3653] setpgid(0, 0)               = 0
[pid  3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3653] write(3, "1000", 4)         = 4
[pid  3653] close(3)                    = 0
[pid  3653] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3653] pipe2([3, 4], 0)            = 0
[pid  3653] dup(4)                      = 5
[pid  3653] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3654 attached
 <unfinished ...>
[pid  3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3654] setpgid(0, 0)               = 0
[pid  3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3654] write(3, "1000", 4)         = 4
[pid  3654] close(3)                    = 0
[pid  3654] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3654] pipe2([3, 4], 0)            = 0
[pid  3654] dup(4)                      = 5
[pid  3654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3649] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3649] exit_group(0)               = ?
[pid  3649] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3655
[pid  3650] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3650] exit_group(0)               = ?
[pid  3650] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3655 attached
) = 0
[pid  3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3655] setpgid(0, 0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3655] <... setpgid resumed>)      = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3655] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  3655] write(3, "1000", 4 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3655] <... write resumed>)        = 4
[pid  3651] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3655] close(3 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556a29690) = 3656
[pid  3655] <... close resumed>)        = 0
[pid  3655] mkdir("./file0", 0777 <unfinished ...>
[pid  3651] exit_group(0 <unfinished ...>
[pid  3655] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3651] <... exit_group resumed>)   = ?
[pid  3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3655] pipe2(./strace-static-x86_64: Process 3656 attached
[3, 4], 0)            = 0
[pid  3651] +++ exited with 0 +++
[pid  3656] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3655] dup(4 <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3656] <... prctl resumed>)        = 0
[pid  3655] <... dup resumed>)          = 5
[pid  3656] setpgid(0, 0 <unfinished ...>
[pid  3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3656] <... setpgid resumed>)      = 0
[pid  3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3656] write(3, "1000", 4 <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3656] <... write resumed>)        = 4
[pid  3610] <... openat resumed>)       = 3
[pid  3656] close(3 <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3656] <... close resumed>)        = 0
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3656] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3656] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] <... close resumed>)        = 0
[pid  3656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3656] pipe2( <unfinished ...>
[pid  3654] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3654] exit_group(0 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3657
[pid  3656] dup(4 <unfinished ...>
[pid  3654] <... exit_group resumed>)   = ?
[pid  3656] <... dup resumed>)          = 5
[pid  3654] +++ exited with 0 +++
[pid  3656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3./strace-static-x86_64: Process 3657 attached
)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3657] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x555556a29690) = 3658
[pid  3657] <... prctl resumed>)        = 0
[pid  3657] setpgid(0, 0)               = 0
./strace-static-x86_64: Process 3658 attached
[pid  3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3658] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3657] write(3, "1000", 4 <unfinished ...>
[pid  3658] <... prctl resumed>)        = 0
[pid  3657] <... write resumed>)        = 4
[pid  3658] setpgid(0, 0 <unfinished ...>
[pid  3657] close(3 <unfinished ...>
[pid  3658] <... setpgid resumed>)      = 0
[pid  3657] <... close resumed>)        = 0
[pid  3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3657] mkdir("./file0", 0777 <unfinished ...>
[pid  3658] <... openat resumed>)       = 3
[pid  3657] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3658] write(3, "1000", 4 <unfinished ...>
[pid  3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3658] <... write resumed>)        = 4
[pid  3657] pipe2( <unfinished ...>
[pid  3658] close(3 <unfinished ...>
[pid  3657] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3658] <... close resumed>)        = 0
[pid  3657] dup(4 <unfinished ...>
[pid  3653] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] mkdir("./file0", 0777 <unfinished ...>
[pid  3657] <... dup resumed>)          = 5
[pid  3653] exit_group(0 <unfinished ...>
[pid  3658] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3653] <... exit_group resumed>)   = ?
[pid  3658] pipe2([3, 4], 0)            = 0
[pid  3658] dup(4)                      = 5
[pid  3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3653] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3659
[pid  3652] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3652] exit_group(0)               = ?
[pid  3652] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3660 attached
./strace-static-x86_64: Process 3659 attached
 <unfinished ...>
[pid  3660] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3659] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3660] <... prctl resumed>)        = 0
[pid  3659] <... prctl resumed>)        = 0
[pid  3660] setpgid(0, 0 <unfinished ...>
[pid  3659] setpgid(0, 0 <unfinished ...>
[pid  3660] <... setpgid resumed>)      = 0
[pid  3659] <... setpgid resumed>)      = 0
[pid  3607] <... clone resumed>, child_tidptr=0x555556a29690) = 3660
[pid  3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3660] <... openat resumed>)       = 3
[pid  3659] <... openat resumed>)       = 3
[pid  3660] write(3, "1000", 4 <unfinished ...>
[pid  3659] write(3, "1000", 4 <unfinished ...>
[pid  3660] <... write resumed>)        = 4
[pid  3659] <... write resumed>)        = 4
[pid  3660] close(3 <unfinished ...>
[pid  3659] close(3 <unfinished ...>
[pid  3660] <... close resumed>)        = 0
[pid  3659] <... close resumed>)        = 0
[pid  3660] mkdir("./file0", 0777 <unfinished ...>
[pid  3659] mkdir("./file0", 0777 <unfinished ...>
[pid  3660] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3659] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3660] pipe2( <unfinished ...>
[pid  3659] pipe2( <unfinished ...>
[pid  3660] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3659] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3660] dup(4 <unfinished ...>
[pid  3659] dup(4 <unfinished ...>
[pid  3660] <... dup resumed>)          = 5
[pid  3659] <... dup resumed>)          = 5
[pid  3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3655] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3655] exit_group(0)               = ?
[pid  3655] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3658] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] exit_group(0)               = ?
[pid  3658] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3609] <... restart_syscall resumed>) = 0
[pid  3608] <... clone resumed>, child_tidptr=0x555556a29690) = 3661
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3662
./strace-static-x86_64: Process 3661 attached
[pid  3661] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3662 attached
) = 0
[pid  3661] setpgid(0, 0)               = 0
[pid  3662] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3662] <... prctl resumed>)        = 0
[pid  3662] setpgid(0, 0 <unfinished ...>
[pid  3661] <... openat resumed>)       = 3
[pid  3662] <... setpgid resumed>)      = 0
[pid  3661] write(3, "1000", 4 <unfinished ...>
[pid  3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3661] <... write resumed>)        = 4
[pid  3662] <... openat resumed>)       = 3
[pid  3661] close(3 <unfinished ...>
[pid  3662] write(3, "1000", 4 <unfinished ...>
[pid  3661] <... close resumed>)        = 0
[pid  3662] <... write resumed>)        = 4
[pid  3661] mkdir("./file0", 0777 <unfinished ...>
[pid  3662] close(3)                    = 0
[pid  3662] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3662] pipe2([3, 4], 0)            = 0
[pid  3662] dup(4)                      = 5
[pid  3662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3661] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3661] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3661] pipe2([3, 4], 0)            = 0
[pid  3661] dup(4)                      = 5
[pid  3661] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3656] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] exit_group(0)               = ?
[pid  3656] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3663
./strace-static-x86_64: Process 3663 attached
[pid  3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3663] setpgid(0, 0)               = 0
[pid  3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3663] write(3, "1000", 4)         = 4
[pid  3663] close(3)                    = 0
[pid  3663] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3663] pipe2([3, 4], 0)            = 0
[pid  3663] dup(4)                      = 5
[pid  3663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3657] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3657] exit_group(0)               = ?
[pid  3657] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3664
./strace-static-x86_64: Process 3664 attached
[pid  3664] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3659] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3659] exit_group(0 <unfinished ...>
[pid  3664] <... prctl resumed>)        = 0
[pid  3659] <... exit_group resumed>)   = ?
[pid  3664] setpgid(0, 0 <unfinished ...>
[pid  3659] +++ exited with 0 +++
[pid  3664] <... setpgid resumed>)      = 0
[pid  3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3664] <... openat resumed>)       = 3
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3664] write(3, "1000", 4 <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3664] <... write resumed>)        = 4
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3664] close(3 <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3664] <... close resumed>)        = 0
[pid  3615] close(3 <unfinished ...>
[pid  3664] mkdir("./file0", 0777 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3664] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3664] pipe2( <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556a29690) = 3665
[pid  3664] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3664] dup(4)                      = 5
[pid  3664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3665 attached
 <unfinished ...>
[pid  3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3665] setpgid(0, 0)               = 0
[pid  3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3665] write(3, "1000", 4)         = 4
[pid  3665] close(3)                    = 0
[pid  3665] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3665] pipe2([3, 4], 0)            = 0
[pid  3665] dup(4)                      = 5
[pid  3665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3660] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3660] exit_group(0)               = ?
[pid  3660] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3666
./strace-static-x86_64: Process 3666 attached
[pid  3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3666] setpgid(0, 0)               = 0
[pid  3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3666] write(3, "1000", 4)         = 4
[pid  3666] close(3)                    = 0
[pid  3666] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3666] pipe2([3, 4], 0)            = 0
[pid  3666] dup(4)                      = 5
[pid  3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3662] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3662] exit_group(0)               = ?
[pid  3662] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3667
./strace-static-x86_64: Process 3667 attached
[pid  3661] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3667] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3661] exit_group(0 <unfinished ...>
[pid  3667] <... prctl resumed>)        = 0
[pid  3661] <... exit_group resumed>)   = ?
[pid  3667] setpgid(0, 0 <unfinished ...>
[pid  3661] +++ exited with 0 +++
[pid  3667] <... setpgid resumed>)      = 0
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3667] write(3, "1000", 4 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3667] <... write resumed>)        = 4
[pid  3608] <... openat resumed>)       = 3
[pid  3667] close(3 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3667] <... close resumed>)        = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3667] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3667] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] <... close resumed>)        = 0
[pid  3667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3667] pipe2([3, 4], 0)            = 0
[pid  3608] <... clone resumed>, child_tidptr=0x555556a29690) = 3668
[pid  3667] dup(4)                      = 5
[pid  3667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3668 attached
 <unfinished ...>
[pid  3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3668] setpgid(0, 0)               = 0
[pid  3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3668] write(3, "1000", 4)         = 4
[pid  3668] close(3)                    = 0
[pid  3668] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3668] pipe2([3, 4], 0)            = 0
[pid  3668] dup(4)                      = 5
[pid  3668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3665] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3665] exit_group(0)               = ?
[pid  3665] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3669
./strace-static-x86_64: Process 3669 attached
[pid  3669] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3664] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3664] exit_group(0)               = ?
[pid  3664] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3669] <... prctl resumed>)        = 0
[pid  3610] <... close resumed>)        = 0
[pid  3669] setpgid(0, 0 <unfinished ...>
[pid  3663] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3669] <... setpgid resumed>)      = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3663] exit_group(0 <unfinished ...>
[pid  3669] <... openat resumed>)       = 3
[pid  3663] <... exit_group resumed>)   = ?
[pid  3669] write(3, "1000", 4 <unfinished ...>
[pid  3663] +++ exited with 0 +++
[pid  3669] <... write resumed>)        = 4
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3670
[pid  3669] close(3)                    = 0
[pid  3669] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3669] pipe2([3, 4], 0)            = 0
[pid  3669] dup(4)                      = 5
[pid  3669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3670 attached
 <unfinished ...>
[pid  3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3670] setpgid(0, 0 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3670] <... setpgid resumed>)      = 0
[pid  3616] <... openat resumed>)       = 3
[pid  3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3670] <... openat resumed>)       = 3
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3670] write(3, "1000", 4 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3670] <... write resumed>)        = 4
[pid  3616] <... close resumed>)        = 0
[pid  3670] close(3 <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3670] <... close resumed>)        = 0
[pid  3670] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556a29690) = 3671
[pid  3670] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3670] pipe2([3, 4], 0)            = 0
[pid  3670] dup(4)                      = 5
[pid  3670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3671 attached
 <unfinished ...>
[pid  3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3671] setpgid(0, 0)               = 0
[pid  3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3671] write(3, "1000", 4)         = 4
[pid  3671] close(3)                    = 0
[pid  3671] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3671] pipe2([3, 4], 0)            = 0
[pid  3671] dup(4)                      = 5
[pid  3671] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3667] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3667] exit_group(0)               = ?
[pid  3667] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3672
./strace-static-x86_64: Process 3672 attached
[pid  3672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3672] setpgid(0, 0)               = 0
[pid  3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3666] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3672] <... openat resumed>)       = 3
[pid  3672] write(3, "1000", 4)         = 4
[pid  3666] exit_group(0 <unfinished ...>
[pid  3672] close(3 <unfinished ...>
[pid  3666] <... exit_group resumed>)   = ?
[pid  3672] <... close resumed>)        = 0
[pid  3672] mkdir("./file0", 0777 <unfinished ...>
[pid  3666] +++ exited with 0 +++
[pid  3672] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3672] pipe2( <unfinished ...>
[pid  3607] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3672] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] <... restart_syscall resumed>) = 0
[pid  3672] dup(4)                      = 5
[pid  3672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3673 attached
, child_tidptr=0x555556a29690) = 3673
[pid  3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3673] setpgid(0, 0)               = 0
[pid  3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3673] write(3, "1000", 4)         = 4
[pid  3668] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3673] close(3 <unfinished ...>
[pid  3668] exit_group(0 <unfinished ...>
[pid  3673] <... close resumed>)        = 0
[pid  3668] <... exit_group resumed>)   = ?
[pid  3673] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3668] +++ exited with 0 +++
[pid  3673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3673] pipe2( <unfinished ...>
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3673] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3673] dup(4)                      = 5
[pid  3673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3674
./strace-static-x86_64: Process 3674 attached
[pid  3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3674] setpgid(0, 0)               = 0
[pid  3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3674] write(3, "1000", 4)         = 4
[pid  3674] close(3)                    = 0
[pid  3674] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3674] pipe2( <unfinished ...>
[pid  3669] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3674] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3674] dup(4 <unfinished ...>
[pid  3669] exit_group(0 <unfinished ...>
[pid  3674] <... dup resumed>)          = 5
[pid  3674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3669] <... exit_group resumed>)   = ?
[pid  3669] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3675
./strace-static-x86_64: Process 3675 attached
[pid  3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3675] setpgid(0, 0 <unfinished ...>
[pid  3671] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3675] <... setpgid resumed>)      = 0
[pid  3671] exit_group(0 <unfinished ...>
[pid  3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3671] <... exit_group resumed>)   = ?
[pid  3675] <... openat resumed>)       = 3
[pid  3671] +++ exited with 0 +++
[pid  3675] write(3, "1000", 4 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3675] <... write resumed>)        = 4
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3675] close(3 <unfinished ...>
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3675] <... close resumed>)        = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3676
./strace-static-x86_64: Process 3676 attached
[pid  3675] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3675] pipe2([3, 4], 0)            = 0
[pid  3676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3676] setpgid(0, 0)               = 0
[pid  3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3676] write(3, "1000", 4 <unfinished ...>
[pid  3675] dup(4 <unfinished ...>
[pid  3676] <... write resumed>)        = 4
[pid  3675] <... dup resumed>)          = 5
[pid  3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3676] close(3)                    = 0
[pid  3676] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3676] pipe2([3, 4], 0)            = 0
[pid  3676] dup(4)                      = 5
[pid  3676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3672] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3672] exit_group(0)               = ?
[pid  3672] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3677
./strace-static-x86_64: Process 3677 attached
[pid  3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3677] setpgid(0, 0)               = 0
[pid  3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3677] write(3, "1000", 4)         = 4
[pid  3677] close(3)                    = 0
[pid  3677] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3677] pipe2([3, 4], 0)            = 0
[pid  3677] dup(4)                      = 5
[pid  3677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3670] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3670] exit_group(0)               = ?
[pid  3670] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3678 attached
 <unfinished ...>
[pid  3673] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3673] exit_group(0 <unfinished ...>
[pid  3678] <... prctl resumed>)        = 0
[pid  3673] <... exit_group resumed>)   = ?
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3678
[pid  3678] setpgid(0, 0 <unfinished ...>
[pid  3673] +++ exited with 0 +++
[pid  3678] <... setpgid resumed>)      = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3678] write(3, "1000", 4)         = 4
[pid  3678] close(3)                    = 0
[pid  3678] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3678] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] <... openat resumed>)       = 3
[pid  3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3678] pipe2( <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3678] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] close(3 <unfinished ...>
[pid  3678] dup(4)                      = 5
[pid  3607] <... close resumed>)        = 0
[pid  3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3679
./strace-static-x86_64: Process 3679 attached
[pid  3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3679] setpgid(0, 0)               = 0
[pid  3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3679] write(3, "1000", 4)         = 4
[pid  3679] close(3)                    = 0
[pid  3679] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3679] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3676] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3676] exit_group(0)               = ?
[pid  3676] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3679] pipe2([3, 4], 0)            = 0
[pid  3679] dup(4 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3679] <... dup resumed>)          = 5
[pid  3616] <... openat resumed>)       = 3
[pid  3679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3680 attached
 <unfinished ...>
[pid  3680] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556a29690) = 3680
[pid  3680] <... prctl resumed>)        = 0
[pid  3680] setpgid(0, 0)               = 0
[pid  3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3680] write(3, "1000", 4)         = 4
[pid  3680] close(3)                    = 0
[pid  3680] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3680] pipe2([3, 4], 0)            = 0
[pid  3680] dup(4)                      = 5
[pid  3680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3674] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3674] exit_group(0)               = ?
[pid  3674] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3681
./strace-static-x86_64: Process 3681 attached
[pid  3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3681] setpgid(0, 0)               = 0
[pid  3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3681] write(3, "1000", 4)         = 4
[pid  3681] close(3)                    = 0
[pid  3681] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3681] pipe2([3, 4], 0)            = 0
[pid  3681] dup(4)                      = 5
[pid  3681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3675] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3675] exit_group(0)               = ?
[pid  3675] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3682
[pid  3677] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3677] exit_group(0)               = ?
[pid  3677] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
./strace-static-x86_64: Process 3682 attached
[pid  3682] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3682] <... prctl resumed>)        = 0
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3682] setpgid(0, 0 <unfinished ...>
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3682] <... setpgid resumed>)      = 0
[pid  3609] close(3 <unfinished ...>
[pid  3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3609] <... close resumed>)        = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3683
[pid  3682] <... openat resumed>)       = 3
[pid  3682] write(3, "1000", 4./strace-static-x86_64: Process 3683 attached
)         = 4
[pid  3682] close(3 <unfinished ...>
[pid  3683] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3682] <... close resumed>)        = 0
[pid  3683] <... prctl resumed>)        = 0
[pid  3682] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3682] pipe2([3, 4], 0)            = 0
[pid  3682] dup(4)                      = 5
[pid  3682] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3683] setpgid(0, 0)               = 0
[pid  3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3680] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3683] <... openat resumed>)       = 3
[pid  3680] exit_group(0 <unfinished ...>
[pid  3683] write(3, "1000", 4 <unfinished ...>
[pid  3680] <... exit_group resumed>)   = ?
[pid  3683] <... write resumed>)        = 4
[pid  3680] +++ exited with 0 +++
[pid  3683] close(3 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3683] <... close resumed>)        = 0
[pid  3683] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3683] pipe2([3, 4], 0)            = 0
[pid  3683] dup(4)                      = 5
[pid  3683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3678] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] exit_group(0)               = ?
[pid  3678] +++ exited with 0 +++
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] <... clone resumed>, child_tidptr=0x555556a29690) = 3684
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
./strace-static-x86_64: Process 3684 attached
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3684] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3679] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... close resumed>)        = 0
[pid  3684] <... prctl resumed>)        = 0
[pid  3679] exit_group(0 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3684] setpgid(0, 0 <unfinished ...>
[pid  3679] <... exit_group resumed>)   = ?
[pid  3684] <... setpgid resumed>)      = 0
[pid  3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3679] +++ exited with 0 +++
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3685
[pid  3684] write(3, "1000", 4)         = 4
[pid  3684] close(3 <unfinished ...>
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3684] <... close resumed>)        = 0
[pid  3684] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3684] pipe2([3, 4], 0)            = 0
[pid  3684] dup(4)                      = 5
[pid  3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3685 attached
 <unfinished ...>
[pid  3685] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3685] <... prctl resumed>)        = 0
[pid  3681] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3685] setpgid(0, 0 <unfinished ...>
[pid  3681] exit_group(0 <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3685] <... setpgid resumed>)      = 0
[pid  3681] <... exit_group resumed>)   = ?
[pid  3607] close(3 <unfinished ...>
[pid  3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3681] +++ exited with 0 +++
[pid  3607] <... close resumed>)        = 0
[pid  3685] <... openat resumed>)       = 3
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3685] write(3, "1000", 4 <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
./strace-static-x86_64: Process 3686 attached
[pid  3685] <... write resumed>)        = 4
[pid  3607] <... clone resumed>, child_tidptr=0x555556a29690) = 3686
[pid  3686] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3685] close(3)                    = 0
[pid  3686] <... prctl resumed>)        = 0
[pid  3685] mkdir("./file0", 0777 <unfinished ...>
[pid  3686] setpgid(0, 0 <unfinished ...>
[pid  3685] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3686] <... setpgid resumed>)      = 0
[pid  3685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... openat resumed>)       = 3
[pid  3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3685] pipe2( <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3685] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3686] <... openat resumed>)       = 3
[pid  3685] dup(4 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3686] write(3, "1000", 4 <unfinished ...>
[pid  3685] <... dup resumed>)          = 5
[pid  3608] <... close resumed>)        = 0
[pid  3685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3686] <... write resumed>)        = 4
[pid  3686] close(3 <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556a29690) = 3687
[pid  3686] <... close resumed>)        = 0
[pid  3686] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3686] pipe2([3, 4], 0)            = 0
[pid  3686] dup(4)                      = 5
[pid  3686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3687 attached
 <unfinished ...>
[pid  3687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3687] setpgid(0, 0)               = 0
[pid  3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3687] write(3, "1000", 4)         = 4
[pid  3687] close(3)                    = 0
[pid  3687] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3687] pipe2([3, 4], 0)            = 0
[pid  3687] dup(4)                      = 5
[pid  3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3682] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3682] exit_group(0)               = ?
[pid  3682] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3683] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... clone resumed>, child_tidptr=0x555556a29690) = 3688
[pid  3683] exit_group(0./strace-static-x86_64: Process 3688 attached
)               = ?
[pid  3688] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3683] +++ exited with 0 +++
[pid  3688] <... prctl resumed>)        = 0
[pid  3688] setpgid(0, 0)               = 0
[pid  3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3688] <... openat resumed>)       = 3
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3688] write(3, "1000", 4 <unfinished ...>
[pid  3609] <... openat resumed>)       = 3
[pid  3688] <... write resumed>)        = 4
[pid  3688] close(3 <unfinished ...>
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3688] <... close resumed>)        = 0
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3688] mkdir("./file0", 0777 <unfinished ...>
[pid  3609] close(3 <unfinished ...>
[pid  3688] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3609] <... close resumed>)        = 0
[pid  3688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3688] pipe2([3, 4], 0)            = 0
[pid  3609] <... clone resumed>, child_tidptr=0x555556a29690) = 3689
[pid  3688] dup(4)                      = 5
[pid  3688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3689 attached
 <unfinished ...>
[pid  3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3689] setpgid(0, 0)               = 0
[pid  3684] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3684] exit_group(0 <unfinished ...>
[pid  3689] <... openat resumed>)       = 3
[pid  3684] <... exit_group resumed>)   = ?
[pid  3689] write(3, "1000", 4)         = 4
[pid  3689] close(3)                    = 0
[pid  3689] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3689] pipe2([3, 4], 0)            = 0
[pid  3689] dup(4)                      = 5
[pid  3689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3684] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3690
./strace-static-x86_64: Process 3690 attached
[pid  3690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3690] setpgid(0, 0)               = 0
[pid  3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3690] write(3, "1000", 4)         = 4
[pid  3690] close(3)                    = 0
[pid  3690] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3690] pipe2([3, 4], 0)            = 0
[pid  3690] dup(4)                      = 5
[pid  3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3686] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3686] exit_group(0)               = ?
[pid  3686] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3685] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3685] exit_group(0)               = ?
[pid  3685] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3607] <... openat resumed>)       = 3
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3691
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
./strace-static-x86_64: Process 3691 attached
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3692
[pid  3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3691] setpgid(0, 0)               = 0
[pid  3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3692 attached
) = 3
[pid  3692] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3691] write(3, "1000", 4 <unfinished ...>
[pid  3692] <... prctl resumed>)        = 0
[pid  3691] <... write resumed>)        = 4
[pid  3692] setpgid(0, 0 <unfinished ...>
[pid  3691] close(3 <unfinished ...>
[pid  3692] <... setpgid resumed>)      = 0
[pid  3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3691] <... close resumed>)        = 0
[pid  3692] <... openat resumed>)       = 3
[pid  3692] write(3, "1000", 4 <unfinished ...>
[pid  3691] mkdir("./file0", 0777 <unfinished ...>
[pid  3692] <... write resumed>)        = 4
[pid  3691] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3692] close(3 <unfinished ...>
[pid  3691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3692] <... close resumed>)        = 0
[pid  3691] pipe2( <unfinished ...>
[pid  3692] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3692] pipe2([3, 4], 0)            = 0
[pid  3691] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3692] dup(4 <unfinished ...>
[pid  3691] dup(4 <unfinished ...>
[pid  3692] <... dup resumed>)          = 5
[pid  3691] <... dup resumed>)          = 5
[pid  3692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3687] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3688] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3687] exit_group(0 <unfinished ...>
[pid  3688] exit_group(0 <unfinished ...>
[pid  3687] <... exit_group resumed>)   = ?
[pid  3688] <... exit_group resumed>)   = ?
[pid  3687] +++ exited with 0 +++
[pid  3688] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3608] <... openat resumed>)       = 3
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3615] close(3 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556a29690) = 3693
[pid  3608] <... clone resumed>, child_tidptr=0x555556a29690) = 3694
[pid  3690] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3690] exit_group(0./strace-static-x86_64: Process 3694 attached
./strace-static-x86_64: Process 3693 attached
)               = ?
[pid  3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3690] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3694] setpgid(0, 0 <unfinished ...>
[pid  3693] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3694] <... setpgid resumed>)      = 0
[pid  3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3694] write(3, "1000", 4)         = 4
[pid  3694] close(3)                    = 0
[pid  3694] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3694] pipe2([3, 4], 0)            = 0
[pid  3694] dup(4 <unfinished ...>
[pid  3693] <... prctl resumed>)        = 0
[pid  3692] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3694] <... dup resumed>)          = 5
[pid  3693] setpgid(0, 0 <unfinished ...>
[pid  3692] exit_group(0 <unfinished ...>
[pid  3694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3693] <... setpgid resumed>)      = 0
[pid  3692] <... exit_group resumed>)   = ?
[pid  3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3692] +++ exited with 0 +++
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3693] write(3, "1000", 4 <unfinished ...>
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3693] <... write resumed>)        = 4
[pid  3693] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3693] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3693] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3693] pipe2( <unfinished ...>
[pid  3607] close(3 <unfinished ...>
[pid  3693] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] <... openat resumed>)       = 3
[pid  3607] <... close resumed>)        = 0
[pid  3693] dup(4 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3693] <... dup resumed>)          = 5
[pid  3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x555556a29690) = 3695
[pid  3689] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3689] exit_group(0 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3689] <... exit_group resumed>)   = ?
[pid  3616] <... close resumed>)        = 0
[pid  3689] +++ exited with 0 +++
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3696
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3696 attached
./strace-static-x86_64: Process 3695 attached
[pid  3691] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3696] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3695] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3691] exit_group(0 <unfinished ...>
[pid  3696] <... prctl resumed>)        = 0
[pid  3695] <... prctl resumed>)        = 0
[pid  3691] <... exit_group resumed>)   = ?
[pid  3696] setpgid(0, 0 <unfinished ...>
[pid  3695] setpgid(0, 0 <unfinished ...>
[pid  3691] +++ exited with 0 +++
[pid  3696] <... setpgid resumed>)      = 0
[pid  3695] <... setpgid resumed>)      = 0
[pid  3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3696] <... openat resumed>)       = 3
[pid  3695] <... openat resumed>)       = 3
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3696] write(3, "1000", 4 <unfinished ...>
[pid  3695] write(3, "1000", 4 <unfinished ...>
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3696] <... write resumed>)        = 4
[pid  3695] <... write resumed>)        = 4
[pid  3696] close(3 <unfinished ...>
[pid  3695] close(3 <unfinished ...>
[pid  3696] <... close resumed>)        = 0
[pid  3695] <... close resumed>)        = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3696] mkdir("./file0", 0777 <unfinished ...>
[pid  3695] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3696] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3695] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3696] pipe2( <unfinished ...>
[pid  3695] pipe2( <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3696] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3695] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3610] <... close resumed>)        = 0
[pid  3696] dup(4 <unfinished ...>
[pid  3695] dup(4 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3696] <... dup resumed>)          = 5
[pid  3695] <... dup resumed>)          = 5
[pid  3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k" <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x555556a29690) = 3697
[pid  3609] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556a29690) = 3698
./strace-static-x86_64: Process 3697 attached
syzkaller login: [   46.253036][ T3694] ==================================================================
[   46.261222][ T3694] BUG: KASAN: use-after-free in __kernfs_remove+0xa09/0xb50
[   46.268541][ T3694] Read of size 2 at addr ffff88807ee02f18 by task syz-executor205/3694
[   46.276768][ T3694] 
[   46.279077][ T3694] CPU: 0 PID: 3694 Comm: syz-executor205 Not tainted 6.0.0-rc7-syzkaller #0
[   46.287750][ T3694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   46.297978][ T3694] Call Trace:
[pid  3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3697] setpgid(0, 0)               = 0
[pid  3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3697] write(3, "1000", 4)         = 4
[pid  3697] close(3)                    = 0
[pid  3697] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3697] pipe2([3, 4], 0)            = 0
[pid  3697] dup(4)                      = 5
[pid  3697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005,k"./strace-static-x86_64: Process 3698 attached
 <unfinished ...>
[pid  3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3698] setpgid(0, 0)               = 0
[pid  3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3698] write(3, "1000", 4)         = 4
[pid  3698] close(3)                    = 0
[pid  3698] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[   46.301267][ T3694]  <TASK>
[   46.304207][ T3694]  dump_stack_lvl+0xcd/0x134
[   46.308825][ T3694]  print_report.cold+0x2ba/0x719
[   46.313782][ T3694]  ? __kernfs_remove+0xa09/0xb50
[   46.318735][ T3694]  kasan_report+0xb1/0x1e0
[   46.323177][ T3694]  ? __kernfs_remove+0xa09/0xb50
[   46.328136][ T3694]  __kernfs_remove+0xa09/0xb50
[   46.332928][ T3694]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   46.338903][ T3694]  ? kernfs_name_hash+0xf1/0x120
[   46.343846][ T3694]  kernfs_remove_by_name_ns+0xa8/0x110
[   46.349318][ T3694]  sysfs_slab_add+0x14b/0x200
[   46.353994][ T3694]  __kmem_cache_create+0x509/0x690
[   46.359131][ T3694]  kmem_cache_create_usercopy+0x1f9/0x300
[   46.364860][ T3694]  p9_client_create+0xca5/0x1070
[   46.369787][ T3694]  ? p9_client_rpc+0xce0/0xce0
[   46.374535][ T3694]  ? lockdep_init_map_type+0x21a/0x7f0
[   46.379980][ T3694]  ? rcu_read_lock_sched_held+0x3a/0x70
[   46.385521][ T3694]  ? __raw_spin_lock_init+0x36/0x110
[   46.390830][ T3694]  v9fs_session_init+0x1e2/0x1810
[   46.395888][ T3694]  ? find_held_lock+0x2d/0x110
[   46.400685][ T3694]  ? v9fs_show_options+0x780/0x780
[   46.405815][ T3694]  ? rcu_read_lock_sched_held+0x3a/0x70
[   46.411370][ T3694]  ? trace_kmalloc+0x32/0x100
[   46.416042][ T3694]  v9fs_mount+0xba/0xc90
[   46.420300][ T3694]  ? v9fs_statfs+0x4d0/0x4d0
[   46.425013][ T3694]  ? apparmor_capable+0x1d8/0x460
[   46.430062][ T3694]  ? v9fs_statfs+0x4d0/0x4d0
[   46.434671][ T3694]  legacy_get_tree+0x105/0x220
[   46.439454][ T3694]  vfs_get_tree+0x89/0x2f0
[   46.443889][ T3694]  path_mount+0x1326/0x1e20
[   46.448413][ T3694]  ? kmem_cache_free+0xeb/0x5b0
[   46.453251][ T3694]  ? finish_automount+0x960/0x960
[   46.458262][ T3694]  ? putname+0xfe/0x140
[   46.462415][ T3694]  __x64_sys_mount+0x27f/0x300
[   46.467197][ T3694]  ? copy_mnt_ns+0xae0/0xae0
[   46.471819][ T3694]  ? lockdep_hardirqs_on+0x79/0x100
[   46.477046][ T3694]  ? _raw_spin_unlock_irq+0x2a/0x40
[   46.482426][ T3694]  ? ptrace_notify+0xfa/0x140
[   46.487101][ T3694]  do_syscall_64+0x35/0xb0
[   46.491525][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   46.497429][ T3694] RIP: 0033:0x7f869766cf59
[   46.501835][ T3694] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   46.521537][ T3694] RSP: 002b:00007fff34923358 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   46.529955][ T3694] RAX: ffffffffffffffda RBX: 00007fff34923390 RCX: 00007f869766cf59
[   46.537955][ T3694] RDX: 0000000020000200 RSI: 0000000020000000 RDI: 0000000000000000
[   46.545943][ T3694] RBP: 0000000000000000 R08: 0000000020000040 R09: 000000000000b351
[   46.553924][ T3694] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   46.561885][ T3694] R13: 000000000000b351 R14: 00007fff3492337c R15: 00007fff34923380
[   46.569883][ T3694]  </TASK>
[   46.572913][ T3694] 
[   46.575232][ T3694] Allocated by task 3691:
[   46.579565][ T3694]  kasan_save_stack+0x1e/0x40
[   46.584261][ T3694]  __kasan_slab_alloc+0x90/0xc0
[   46.589124][ T3694]  kmem_cache_alloc+0x267/0x3b0
[   46.593983][ T3694]  __kernfs_new_node+0xd4/0x8b0
[   46.598855][ T3694]  kernfs_create_dir_ns+0x9c/0x220
[   46.604010][ T3694]  sysfs_create_dir_ns+0x127/0x290
[   46.609133][ T3694]  kobject_add_internal+0x2c9/0x8f0
[   46.614331][ T3694]  kobject_init_and_add+0x101/0x160
[   46.619541][ T3694]  sysfs_slab_add+0x16e/0x200
[   46.624222][ T3694]  __kmem_cache_create+0x509/0x690
[   46.629346][ T3694]  kmem_cache_create_usercopy+0x1f9/0x300
[   46.635082][ T3694]  p9_client_create+0xca5/0x1070
[   46.640027][ T3694]  v9fs_session_init+0x1e2/0x1810
[   46.645073][ T3694]  v9fs_mount+0xba/0xc90
[   46.649327][ T3694]  legacy_get_tree+0x105/0x220
[   46.654120][ T3694]  vfs_get_tree+0x89/0x2f0
[   46.658548][ T3694]  path_mount+0x1326/0x1e20
[   46.663072][ T3694]  __x64_sys_mount+0x27f/0x300
[   46.667856][ T3694]  do_syscall_64+0x35/0xb0
[   46.672295][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   46.678202][ T3694] 
[   46.680527][ T3694] Freed by task 3694:
[   46.684512][ T3694]  kasan_save_stack+0x1e/0x40
[   46.689211][ T3694]  kasan_set_track+0x21/0x30
[   46.693820][ T3694]  kasan_set_free_info+0x20/0x30
[   46.698954][ T3694]  ____kasan_slab_free+0x166/0x1c0
[   46.704081][ T3694]  slab_free_freelist_hook+0x8b/0x1c0
[   46.709466][ T3694]  kmem_cache_free+0xeb/0x5b0
[   46.714145][ T3694]  kernfs_put.part.0+0x2c4/0x540
[   46.719103][ T3694]  kernfs_put+0x42/0x50
[   46.723274][ T3694]  __kernfs_remove+0x7a6/0xb50
[   46.728057][ T3694]  kernfs_remove_by_name_ns+0xa8/0x110
[   46.733535][ T3694]  sysfs_slab_add+0x14b/0x200
[   46.738229][ T3694]  __kmem_cache_create+0x509/0x690
[   46.743347][ T3694]  kmem_cache_create_usercopy+0x1f9/0x300
[   46.749082][ T3694]  p9_client_create+0xca5/0x1070
[   46.754035][ T3694]  v9fs_session_init+0x1e2/0x1810
[   46.759089][ T3694]  v9fs_mount+0xba/0xc90
[   46.763334][ T3694]  legacy_get_tree+0x105/0x220
[   46.768107][ T3694]  vfs_get_tree+0x89/0x2f0
[   46.772515][ T3694]  path_mount+0x1326/0x1e20
[   46.777044][ T3694]  __x64_sys_mount+0x27f/0x300
[   46.781832][ T3694]  do_syscall_64+0x35/0xb0
[   46.786261][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   46.792172][ T3694] 
[   46.794505][ T3694] The buggy address belongs to the object at ffff88807ee02e80
[   46.794505][ T3694]  which belongs to the cache kernfs_node_cache of size 168
[   46.809102][ T3694] The buggy address is located 152 bytes inside of
[   46.809102][ T3694]  168-byte region [ffff88807ee02e80, ffff88807ee02f28)
[   46.822381][ T3694] 
[   46.824795][ T3694] The buggy address belongs to the physical page:
[   46.831211][ T3694] page:ffffea0001fb8080 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7ee02
[   46.841373][ T3694] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[   46.848951][ T3694] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff8880119dbb40
[   46.857548][ T3694] raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
[   46.866127][ T3694] page dumped because: kasan: bad access detected
[   46.872538][ T3694] page_owner tracks the page as allocated
[   46.878424][ T3694] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3688, tgid 3688 (syz-executor205), ts 46132992739, free_ts 46119939513
[   46.897292][ T3694]  get_page_from_freelist+0x109b/0x2ce0
[   46.903121][ T3694]  __alloc_pages+0x1c7/0x510
[   46.907730][ T3694]  alloc_pages+0x1a6/0x270
[   46.912157][ T3694]  allocate_slab+0x27e/0x3d0
[   46.916750][ T3694]  ___slab_alloc+0x7f1/0xe10
[   46.921353][ T3694]  __slab_alloc.constprop.0+0x4d/0xa0
[   46.926736][ T3694]  kmem_cache_alloc+0x38c/0x3b0
[   46.931596][ T3694]  __kernfs_new_node+0xd4/0x8b0
[   46.936463][ T3694]  kernfs_new_node+0x93/0x120
[   46.941155][ T3694]  __kernfs_create_file+0x51/0x350
[   46.946284][ T3694]  sysfs_add_file_mode_ns+0x20f/0x3f0
[   46.951670][ T3694]  sysfs_merge_group+0x196/0x310
[   46.956618][ T3694]  dpm_sysfs_add+0x241/0x290
[   46.961221][ T3694]  device_add+0xa82/0x1e90
[   46.965651][ T3694]  device_create_groups_vargs+0x203/0x280
[   46.971391][ T3694]  device_create+0xdf/0x120
[   46.975913][ T3694] page last free stack trace:
[   46.980601][ T3694]  free_pcp_prepare+0x5e4/0xd20
[   46.985469][ T3694]  free_unref_page+0x19/0x4d0
[   46.990160][ T3694]  __unfreeze_partials+0x17c/0x1a0
[   46.995284][ T3694]  qlist_free_all+0x6a/0x170
[   46.999885][ T3694]  kasan_quarantine_reduce+0x180/0x200
[   47.005383][ T3694]  __kasan_slab_alloc+0xa2/0xc0
[   47.010246][ T3694]  kmem_cache_alloc_lru+0x255/0x720
[   47.015468][ T3694]  alloc_inode+0x168/0x230
[   47.019895][ T3694]  new_inode_pseudo+0x13/0x80
[   47.024573][ T3694]  create_pipe_files+0x4d/0x880
[   47.029425][ T3694]  do_pipe2+0x96/0x1b0
[   47.033514][ T3694]  __x64_sys_pipe2+0x50/0x70
[   47.038120][ T3694]  do_syscall_64+0x35/0xb0
[   47.042549][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   47.048450][ T3694] 
[   47.050882][ T3694] Memory state around the buggy address:
[   47.056519][ T3694]  ffff88807ee02e00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   47.064587][ T3694]  ffff88807ee02e80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   47.072647][ T3694] >ffff88807ee02f00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
[   47.080802][ T3694]                             ^
[   47.085646][ T3694]  ffff88807ee02f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   47.093721][ T3694]  ffff88807ee03000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[pid  3698] pipe2([3, 4], 0)            = 0
[pid  3698] dup(4)                      = 5
[   47.101784][ T3694] ==================================================================
[   47.125796][ T3694] Kernel panic - not syncing: panic_on_warn set ...
[   47.132476][ T3694] CPU: 0 PID: 3694 Comm: syz-executor205 Not tainted 6.0.0-rc7-syzkaller #0
[   47.141159][ T3694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   47.151220][ T3694] Call Trace:
[   47.154511][ T3694]  <TASK>
[   47.157449][ T3694]  dump_stack_lvl+0xcd/0x134
[   47.162065][ T3694]  panic+0x2c8/0x627
[   47.165974][ T3694]  ? panic_print_sys_info.part.0+0x10b/0x10b
[   47.171968][ T3694]  ? preempt_schedule_common+0x59/0xc0
[   47.177454][ T3694]  ? preempt_schedule_thunk+0x16/0x18
[   47.182849][ T3694]  ? __kernfs_remove+0xa09/0xb50
[   47.187809][ T3694]  end_report.part.0+0x3f/0x7c
[   47.192590][ T3694]  kasan_report.cold+0xa/0xf
[   47.197202][ T3694]  ? __kernfs_remove+0xa09/0xb50
[   47.202153][ T3694]  __kernfs_remove+0xa09/0xb50
[   47.206947][ T3694]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   47.212951][ T3694]  ? kernfs_name_hash+0xf1/0x120
[   47.217903][ T3694]  kernfs_remove_by_name_ns+0xa8/0x110
[   47.223381][ T3694]  sysfs_slab_add+0x14b/0x200
[   47.228072][ T3694]  __kmem_cache_create+0x509/0x690
[   47.233203][ T3694]  kmem_cache_create_usercopy+0x1f9/0x300
[   47.238945][ T3694]  p9_client_create+0xca5/0x1070
[   47.243899][ T3694]  ? p9_client_rpc+0xce0/0xce0
[   47.248691][ T3694]  ? lockdep_init_map_type+0x21a/0x7f0
[   47.254168][ T3694]  ? rcu_read_lock_sched_held+0x3a/0x70
[   47.259730][ T3694]  ? __raw_spin_lock_init+0x36/0x110
[   47.265036][ T3694]  v9fs_session_init+0x1e2/0x1810
[   47.270078][ T3694]  ? find_held_lock+0x2d/0x110
[   47.274861][ T3694]  ? v9fs_show_options+0x780/0x780
[   47.280001][ T3694]  ? rcu_read_lock_sched_held+0x3a/0x70
[   47.285558][ T3694]  ? trace_kmalloc+0x32/0x100
[   47.290251][ T3694]  v9fs_mount+0xba/0xc90
[   47.294503][ T3694]  ? v9fs_statfs+0x4d0/0x4d0
[   47.299115][ T3694]  ? apparmor_capable+0x1d8/0x460
[   47.304156][ T3694]  ? v9fs_statfs+0x4d0/0x4d0
[   47.308763][ T3694]  legacy_get_tree+0x105/0x220
[   47.313538][ T3694]  vfs_get_tree+0x89/0x2f0
[   47.317985][ T3694]  path_mount+0x1326/0x1e20
[   47.322511][ T3694]  ? kmem_cache_free+0xeb/0x5b0
[   47.327372][ T3694]  ? finish_automount+0x960/0x960
[   47.332422][ T3694]  ? putname+0xfe/0x140
[   47.336588][ T3694]  __x64_sys_mount+0x27f/0x300
[   47.341362][ T3694]  ? copy_mnt_ns+0xae0/0xae0
[   47.345969][ T3694]  ? lockdep_hardirqs_on+0x79/0x100
[   47.351187][ T3694]  ? _raw_spin_unlock_irq+0x2a/0x40
[   47.356397][ T3694]  ? ptrace_notify+0xfa/0x140
[   47.361086][ T3694]  do_syscall_64+0x35/0xb0
[   47.365520][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   47.371421][ T3694] RIP: 0033:0x7f869766cf59
[   47.375848][ T3694] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   47.395464][ T3694] RSP: 002b:00007fff34923358 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   47.403863][ T3694] RAX: ffffffffffffffda RBX: 00007fff34923390 RCX: 00007f869766cf59
[   47.411844][ T3694] RDX: 0000000020000200 RSI: 0000000020000000 RDI: 0000000000000000
[   47.419806][ T3694] RBP: 0000000000000000 R08: 0000000020000040 R09: 000000000000b351
[   47.427799][ T3694] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   47.436123][ T3694] R13: 000000000000b351 R14: 00007fff3492337c R15: 00007fff34923380
[   47.444118][ T3694]  </TASK>
[   47.447857][ T3694] Kernel Offset: disabled
[   47.452169][ T3694] Rebooting in 86400 seconds..