./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor495956702

<...>
Warning: Permanently added '10.128.1.105' (ECDSA) to the list of known hosts.
execve("./syz-executor495956702", ["./syz-executor495956702"], 0x7fffda63b190 /* 10 vars */) = 0
brk(NULL)                               = 0x555556de1000
brk(0x555556de1d00)                     = 0x555556de1d00
arch_prctl(ARCH_SET_FS, 0x555556de13c0) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor495956702", 4096) = 27
brk(0x555556e02d00)                     = 0x555556e02d00
brk(0x555556e03000)                     = 0x555556e03000
mprotect(0x7f54e8f3d000, 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=0x7f54e8e8e0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f54e8e8eb90}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f54e8e8e0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f54e8e8eb90}, NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3612 attached
, child_tidptr=0x555556de1690) = 3612
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3613 attached
 <unfinished ...>
[pid  3611] <... clone resumed>, child_tidptr=0x555556de1690) = 3613
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3612] close(3 <unfinished ...>
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3612] <... close resumed>)        = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3614
./strace-static-x86_64: Process 3614 attached
[pid  3614] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3614] setpgid(0, 0)               = 0
[pid  3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3614] write(3, "1000", 4)         = 4
[pid  3614] close(3)                    = 0
[pid  3614] mkdir("./file0", 0777)      = 0
[pid  3614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3614] pipe2([3, 4], 0)            = 0
[pid  3614] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3611] <... clone resumed>, child_tidptr=0x555556de1690) = 3615
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3616 attached
 <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3611] <... clone resumed>, child_tidptr=0x555556de1690) = 3616
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3617
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3618
[pid  3613] <... openat resumed>)       = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3615 attached
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3619
[pid  3616] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3618 attached
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3619 attached
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3621
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... openat resumed>)       = 3
[pid  3616] close(3./strace-static-x86_64: Process 3617 attached
 <unfinished ...>
[pid  3619] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] <... prctl resumed>)        = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556de1690) = 3622
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] setpgid(0, 0 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3619] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 3622 attached
[pid  3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3622] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3621 attached
 <unfinished ...>
[pid  3622] <... prctl resumed>)        = 0
[pid  3619] write(3, "1000", 4 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] setpgid(0, 0 <unfinished ...>
[pid  3621] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... write resumed>)        = 4
[pid  3618] <... clone resumed>, child_tidptr=0x555556de1690) = 3624
[pid  3617] close(3 <unfinished ...>
[pid  3621] <... prctl resumed>)        = 0
[pid  3621] setpgid(0, 0 <unfinished ...>
[pid  3622] <... setpgid resumed>)      = 0
[pid  3619] close(3 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3621] <... setpgid resumed>)      = 0
[pid  3619] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] mkdir("./file0", 0777 <unfinished ...>
[pid  3622] write(3, "1000", 4 <unfinished ...>
[pid  3621] <... openat resumed>)       = 3
[pid  3619] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] <... write resumed>)        = 4
[pid  3621] write(3, "1000", 4 <unfinished ...>
[pid  3619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] <... clone resumed>, child_tidptr=0x555556de1690) = 3625
[pid  3622] close(3 <unfinished ...>
[pid  3621] <... write resumed>)        = 4
[pid  3619] pipe2(./strace-static-x86_64: Process 3625 attached
 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3621] close(3 <unfinished ...>
[pid  3619] <... pipe2 resumed>[3, 4], 0) = 0
./strace-static-x86_64: Process 3624 attached
[pid  3625] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] mkdir("./file0", 0777 <unfinished ...>
[pid  3621] <... close resumed>)        = 0
[pid  3619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3625] <... prctl resumed>)        = 0
[pid  3624] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3621] mkdir("./file0", 0777 <unfinished ...>
[pid  3625] setpgid(0, 0 <unfinished ...>
[pid  3621] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3625] <... setpgid resumed>)      = 0
[pid  3622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3622] pipe2( <unfinished ...>
[pid  3621] pipe2( <unfinished ...>
[pid  3625] <... openat resumed>)       = 3
[pid  3624] <... prctl resumed>)        = 0
[pid  3622] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3621] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3625] write(3, "1000", 4 <unfinished ...>
[pid  3624] setpgid(0, 0 <unfinished ...>
[pid  3622] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3625] <... write resumed>)        = 4
[pid  3624] <... setpgid resumed>)      = 0
[pid  3625] close(3 <unfinished ...>
[pid  3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3625] <... close resumed>)        = 0
[pid  3625] mkdir("./file0", 0777 <unfinished ...>
[pid  3624] <... openat resumed>)       = 3
[pid  3625] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3624] write(3, "1000", 4 <unfinished ...>
[pid  3625] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3624] <... write resumed>)        = 4
[pid  3625] pipe2([3, 4], 0)            = 0
[pid  3624] close(3 <unfinished ...>
[pid  3625] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3624] <... close resumed>)        = 0
[pid  3624] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3624] pipe2([3, 4], 0)            = 0
[pid  3624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3614] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3614] exit_group(0)               = ?
[pid  3614] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3614, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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)                    = 0
[pid  3627] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3627] pipe2([3, 4], 0)            = 0
[pid  3627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3621] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3621] exit_group(0)               = ?
[pid  3621] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, 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/loop2", 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=0x555556de1690) = 3629
./strace-static-x86_64: Process 3629 attached
[pid  3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3629] setpgid(0, 0)               = 0
[pid  3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3629] write(3, "1000", 4)         = 4
[pid  3629] close(3)                    = 0
[pid  3629] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3629] pipe2([3, 4], 0)            = 0
[pid  3629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3624] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3624] exit_group(0)               = ?
[pid  3624] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3630
./strace-static-x86_64: Process 3630 attached
[pid  3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3630] setpgid(0, 0)               = 0
[pid  3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3630] write(3, "1000", 4)         = 4
[pid  3630] close(3)                    = 0
[pid  3630] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3630] pipe2([3, 4], 0)            = 0
[pid  3630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3619] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] exit_group(0)               = ?
[pid  3619] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3631
./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  3631] write(3, "1000", 4)         = 4
[pid  3631] close(3)                    = 0
[pid  3631] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3631] pipe2([3, 4], 0)            = 0
[pid  3631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3625] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3625] exit_group(0)               = ?
[pid  3625] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3632
./strace-static-x86_64: Process 3632 attached
[pid  3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3632] setpgid(0, 0)               = 0
[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)                    = 0
[pid  3632] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3632] pipe2([3, 4], 0)            = 0
[pid  3632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3622] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] exit_group(0)               = ?
[pid  3622] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3633
./strace-static-x86_64: Process 3633 attached
[pid  3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[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 <unfinished ...>
[pid  3632] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3632] exit_group(0)               = ?
[pid  3632] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3633] <... close resumed>)        = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3633] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] <... openat resumed>)       = 3
[pid  3633] pipe2( <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3633] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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  3629] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3634] write(3, "1000", 4)         = 4
[pid  3629] exit_group(0 <unfinished ...>
[pid  3634] close(3 <unfinished ...>
[pid  3629] <... exit_group resumed>)   = ?
[pid  3634] <... close resumed>)        = 0
[pid  3634] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3629] +++ exited with 0 +++
[pid  3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3634] pipe2([3, 4], 0)            = 0
[pid  3634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop2", 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=0x555556de1690) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3631] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3631] exit_group(0)               = ?
[pid  3631] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3613] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3627] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3627] exit_group(0)               = ?
[pid  3627] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3630] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3630] exit_group(0)               = ?
[pid  3630] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3638 attached
, child_tidptr=0x555556de1690) = 3638
[pid  3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3638] setpgid(0, 0)               = 0
[pid  3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3638] write(3, "1000", 4)         = 4
[pid  3638] close(3)                    = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <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=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3639
./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
[pid  3639] close(3)                    = 0
[pid  3639] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3639] pipe2([3, 4], 0)            = 0
[pid  3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3637] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3637] exit_group(0)               = ?
[pid  3637] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3640
./strace-static-x86_64: Process 3640 attached
[pid  3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3640] setpgid(0, 0)               = 0
[pid  3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3640] write(3, "1000", 4)         = 4
[pid  3640] close(3)                    = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3634] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3634] exit_group(0)               = ?
[pid  3634] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3641 attached
, child_tidptr=0x555556de1690) = 3641
[pid  3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3641] setpgid(0, 0)               = 0
[pid  3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3636] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3636] exit_group(0)               = ?
[pid  3636] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3613] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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([3, 4], 0)            = 0
[pid  3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3635] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3635] exit_group(0)               = ?
[pid  3635] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop2", 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=0x555556de1690) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3638] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3638] exit_group(0)               = ?
[pid  3638] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3640] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3640] exit_group(0)               = ?
[pid  3640] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3645 attached
 <unfinished ...>
[pid  3645] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3612] <... clone resumed>, child_tidptr=0x555556de1690) = 3645
[pid  3645] <... prctl resumed>)        = 0
[pid  3645] setpgid(0, 0)               = 0
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3641] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3641] exit_group(0)               = ?
[pid  3641] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3646
./strace-static-x86_64: Process 3646 attached
[pid  3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3646] setpgid(0, 0)               = 0
[pid  3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[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([3, 4], 0)            = 0
[pid  3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3639] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3639] exit_group(0)               = ?
[pid  3639] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3647
./strace-static-x86_64: Process 3647 attached
[pid  3647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3647] setpgid(0, 0)               = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3642] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3642] exit_group(0)               = ?
[pid  3642] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3613] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3648
./strace-static-x86_64: Process 3648 attached
[pid  3648] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3643] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3643] exit_group(0)               = ?
[pid  3643] +++ exited with 0 +++
[pid  3648] <... prctl resumed>)        = 0
[pid  3648] setpgid(0, 0)               = 0
[pid  3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3648] write(3, "1000", 4)         = 4
[pid  3648] close(3)                    = 0
[pid  3648] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3648] pipe2( <unfinished ...>
[pid  3615] --- 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] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop2", 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=0x555556de1690) = 3649
./strace-static-x86_64: Process 3649 attached
[pid  3644] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3644] exit_group(0 <unfinished ...>
[pid  3649] <... prctl resumed>)        = 0
[pid  3644] <... exit_group resumed>)   = ?
[pid  3649] setpgid(0, 0)               = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3644] +++ exited with 0 +++
[pid  3649] <... openat resumed>)       = 3
[pid  3649] write(3, "1000", 4 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3649] <... write resumed>)        = 4
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3649] close(3 <unfinished ...>
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3649] <... close resumed>)        = 0
[pid  3649] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3650
./strace-static-x86_64: Process 3650 attached
[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  3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3649] pipe2([3, 4], 0)            = 0
[pid  3650] pipe2( <unfinished ...>
[pid  3649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3650] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3645] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3645] exit_group(0)               = ?
[pid  3645] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3651
./strace-static-x86_64: Process 3651 attached
[pid  3646] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3651] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3646] exit_group(0 <unfinished ...>
[pid  3651] <... prctl resumed>)        = 0
[pid  3646] <... exit_group resumed>)   = ?
[pid  3651] setpgid(0, 0 <unfinished ...>
[pid  3646] +++ exited with 0 +++
[pid  3651] <... setpgid resumed>)      = 0
[pid  3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3651] <... openat resumed>)       = 3
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3651] write(3, "1000", 4 <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3651] <... write resumed>)        = 4
[pid  3651] close(3)                    = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3651] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3651] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3651] pipe2( <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3651] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... close resumed>)        = 0
[pid  3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3652
./strace-static-x86_64: Process 3652 attached
[pid  3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3652] setpgid(0, 0)               = 0
[pid  3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3652] write(3, "1000", 4)         = 4
[pid  3652] close(3)                    = 0
[pid  3652] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3652] pipe2( <unfinished ...>
[pid  3647] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3652] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3647] exit_group(0)               = ?
[pid  3647] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3653
./strace-static-x86_64: Process 3653 attached
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3648] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3648] exit_group(0)               = ?
[pid  3648] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3613] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3654
./strace-static-x86_64: Process 3654 attached
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3651] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3651] exit_group(0)               = ?
[pid  3651] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3612] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3655
./strace-static-x86_64: Process 3655 attached
[pid  3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3655] setpgid(0, 0)               = 0
[pid  3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3655] write(3, "1000", 4)         = 4
[pid  3655] close(3)                    = 0
[pid  3655] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3655] pipe2([3, 4], 0)            = 0
[pid  3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3649] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3649] exit_group(0)               = ?
[pid  3649] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, 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/loop2", 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=0x555556de1690) = 3656
./strace-static-x86_64: Process 3656 attached
[pid  3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3656] setpgid(0, 0)               = 0
[pid  3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3656] write(3, "1000", 4)         = 4
[pid  3656] close(3)                    = 0
[pid  3656] mkdir("./file0", 0777 <unfinished ...>
[pid  3650] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3650] exit_group(0 <unfinished ...>
[pid  3656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3650] <... exit_group resumed>)   = ?
[pid  3656] pipe2( <unfinished ...>
[pid  3650] +++ exited with 0 +++
[pid  3656] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3657
./strace-static-x86_64: Process 3657 attached
[pid  3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3657] setpgid(0, 0)               = 0
[pid  3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3652] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3657] write(3, "1000", 4 <unfinished ...>
[pid  3652] exit_group(0 <unfinished ...>
[pid  3657] <... write resumed>)        = 4
[pid  3652] <... exit_group resumed>)   = ?
[pid  3657] close(3)                    = 0
[pid  3657] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3652] +++ exited with 0 +++
[pid  3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3657] pipe2([3, 4], 0)            = 0
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3658
./strace-static-x86_64: Process 3658 attached
[pid  3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3658] setpgid(0, 0)               = 0
[pid  3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3658] write(3, "1000", 4)         = 4
[pid  3658] close(3)                    = 0
[pid  3653] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] mkdir("./file0", 0777 <unfinished ...>
[pid  3653] exit_group(0 <unfinished ...>
[pid  3658] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3653] <... exit_group resumed>)   = ?
[pid  3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3658] pipe2([3, 4], 0)            = 0
[pid  3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3653] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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 <unfinished ...>
[pid  3655] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3659 attached
[pid  3655] exit_group(0 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556de1690) = 3659
[pid  3655] <... exit_group resumed>)   = ?
[pid  3659] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3655] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3659] <... prctl resumed>)        = 0
[pid  3659] setpgid(0, 0)               = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3612] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3659] <... openat resumed>)       = 3
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3659] write(3, "1000", 4 <unfinished ...>
[pid  3612] close(3 <unfinished ...>
[pid  3659] <... write resumed>)        = 4
[pid  3612] <... close resumed>)        = 0
[pid  3659] close(3 <unfinished ...>
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3659] <... close resumed>)        = 0
[pid  3659] mkdir("./file0", 0777 <unfinished ...>
[pid  3612] <... clone resumed>, child_tidptr=0x555556de1690) = 3660
[pid  3659] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3659] pipe2([3, 4], 0)            = 0
[pid  3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3660 attached
 <unfinished ...>
[pid  3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3660] setpgid(0, 0)               = 0
[pid  3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3660] write(3, "1000", 4 <unfinished ...>
[pid  3654] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3654] exit_group(0)               = ?
[pid  3654] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3660] <... write resumed>)        = 4
[pid  3660] close(3)                    = 0
[pid  3660] mkdir("./file0", 0777 <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3660] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3613] <... openat resumed>)       = 3
[pid  3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3660] pipe2( <unfinished ...>
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3660] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3613] close(3 <unfinished ...>
[pid  3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3613] <... close resumed>)        = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3661
./strace-static-x86_64: Process 3661 attached
[pid  3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3661] setpgid(0, 0)               = 0
[pid  3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3661] write(3, "1000", 4)         = 4
[pid  3661] close(3)                    = 0
[pid  3661] mkdir("./file0", 0777)      = -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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3658] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] exit_group(0)               = ?
[pid  3658] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3662
./strace-static-x86_64: Process 3662 attached
[pid  3659] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3662] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3659] exit_group(0 <unfinished ...>
[pid  3662] <... prctl resumed>)        = 0
[pid  3659] <... exit_group resumed>)   = ?
[pid  3662] setpgid(0, 0 <unfinished ...>
[pid  3659] +++ exited with 0 +++
[pid  3662] <... setpgid resumed>)      = 0
[pid  3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3662] write(3, "1000", 4)         = 4
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3663
./strace-static-x86_64: Process 3663 attached
[pid  3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3663] setpgid(0, 0 <unfinished ...>
[pid  3657] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3657] exit_group(0)               = ?
[pid  3663] <... setpgid resumed>)      = 0
[pid  3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3657] +++ exited with 0 +++
[pid  3663] write(3, "1000", 4)         = 4
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3663] close(3 <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3663] <... close resumed>)        = 0
[pid  3618] <... restart_syscall resumed>) = 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( <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3663] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... openat resumed>)       = 3
[pid  3663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3664
./strace-static-x86_64: Process 3664 attached
[pid  3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3664] setpgid(0, 0)               = 0
[pid  3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3656] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3664] <... openat resumed>)       = 3
[pid  3664] write(3, "1000", 4)         = 4
[pid  3664] close(3)                    = 0
[pid  3656] exit_group(0 <unfinished ...>
[pid  3664] mkdir("./file0", 0777 <unfinished ...>
[pid  3656] <... exit_group resumed>)   = ?
[pid  3664] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3664] pipe2( <unfinished ...>
[pid  3656] +++ exited with 0 +++
[pid  3664] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, 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/loop2", 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=0x555556de1690) = 3665
./strace-static-x86_64: Process 3665 attached
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3660] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3660] exit_group(0)               = ?
[pid  3660] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3663] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3663] exit_group(0)               = ?
[pid  3663] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3667
./strace-static-x86_64: Process 3667 attached
[pid  3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3667] setpgid(0, 0)               = 0
[pid  3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3667] write(3, "1000", 4)         = 4
[pid  3667] close(3)                    = 0
[pid  3667] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3667] pipe2([3, 4], 0)            = 0
[pid  3667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3662] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3662] exit_group(0)               = ?
[pid  3662] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3661] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3661] exit_group(0)               = ?
[pid  3617] <... clone resumed>, child_tidptr=0x555556de1690) = 3668
[pid  3661] +++ exited with 0 +++
./strace-static-x86_64: Process 3668 attached
[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  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3668] write(3, "1000", 4 <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3668] <... write resumed>)        = 4
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3668] close(3)                    = 0
[pid  3613] close(3 <unfinished ...>
[pid  3668] mkdir("./file0", 0777 <unfinished ...>
[pid  3613] <... close resumed>)        = 0
[pid  3668] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3668] pipe2( <unfinished ...>
[pid  3664] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3669
[pid  3664] exit_group(0 <unfinished ...>
[pid  3668] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3664] <... exit_group resumed>)   = ?
[pid  3664] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 3669 attached
) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3669] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] close(3 <unfinished ...>
[pid  3669] <... prctl resumed>)        = 0
[pid  3618] <... close resumed>)        = 0
[pid  3669] setpgid(0, 0 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3669] <... setpgid resumed>)      = 0
[pid  3618] <... clone resumed>, child_tidptr=0x555556de1690) = 3670
[pid  3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3669] write(3, "1000", 4./strace-static-x86_64: Process 3670 attached
)         = 4
[pid  3670] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3669] close(3 <unfinished ...>
[pid  3670] <... prctl resumed>)        = 0
[pid  3669] <... close resumed>)        = 0
[pid  3670] setpgid(0, 0 <unfinished ...>
[pid  3669] mkdir("./file0", 0777 <unfinished ...>
[pid  3670] <... setpgid resumed>)      = 0
[pid  3669] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3669] pipe2( <unfinished ...>
[pid  3670] <... openat resumed>)       = 3
[pid  3670] write(3, "1000", 4 <unfinished ...>
[pid  3669] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3670] <... write resumed>)        = 4
[pid  3669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3665] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3670] close(3)                    = 0
[pid  3665] exit_group(0 <unfinished ...>
[pid  3670] mkdir("./file0", 0777 <unfinished ...>
[pid  3665] <... exit_group resumed>)   = ?
[pid  3670] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3665] +++ exited with 0 +++
[pid  3670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[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  3670] pipe2([3, 4], 0)            = 0
[pid  3670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop2", 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./strace-static-x86_64: Process 3671 attached
 <unfinished ...>
[pid  3671] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3671
[pid  3671] <... prctl resumed>)        = 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  3667] <... mount resumed>)        = -1 EFAULT (Bad address)
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3667] exit_group(0)               = ?
[pid  3667] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 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) = 3
[pid  3672] write(3, "1000", 4)         = 4
[pid  3672] close(3)                    = 0
[pid  3672] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3672] pipe2([3, 4], 0)            = 0
[pid  3672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3666] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3666] exit_group(0)               = ?
[pid  3666] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3673
./strace-static-x86_64: Process 3673 attached
[pid  3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3668] <... mount resumed>)        = -1 EFAULT (Bad address)
[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  3673] close(3)                    = 0
[pid  3673] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3673] pipe2([3, 4], 0)            = 0
[pid  3673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3668] exit_group(0)               = ?
[pid  3668] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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([3, 4], 0)            = 0
[pid  3674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3671] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3671] exit_group(0)               = ?
[pid  3671] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop2", 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=0x555556de1690) = 3675
./strace-static-x86_64: Process 3675 attached
[pid  3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3675] setpgid(0, 0)               = 0
[pid  3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3675] write(3, "1000", 4)         = 4
[pid  3675] close(3)                    = 0
[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  3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3669] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3669] exit_group(0)               = ?
[pid  3669] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3676
./strace-static-x86_64: Process 3676 attached
[pid  3670] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3676] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3670] exit_group(0 <unfinished ...>
[pid  3676] <... prctl resumed>)        = 0
[pid  3670] <... exit_group resumed>)   = ?
[pid  3676] setpgid(0, 0)               = 0
[pid  3670] +++ exited with 0 +++
[pid  3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3676] <... openat resumed>)       = 3
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3 <unfinished ...>
[pid  3676] write(3, "1000", 4 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3676] <... write resumed>)        = 4
[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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3677
./strace-static-x86_64: Process 3677 attached
[pid  3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3677] setpgid(0, 0 <unfinished ...>
[pid  3672] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3677] <... setpgid resumed>)      = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3672] exit_group(0)               = ?
[pid  3672] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3678
./strace-static-x86_64: Process 3678 attached
[pid  3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3678] setpgid(0, 0)               = 0
[pid  3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3673] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] <... openat resumed>)       = 3
[pid  3673] exit_group(0 <unfinished ...>
[pid  3678] write(3, "1000", 4 <unfinished ...>
[pid  3673] <... exit_group resumed>)   = ?
[pid  3678] <... write resumed>)        = 4
[pid  3673] +++ exited with 0 +++
[pid  3678] close(3)                    = 0
[pid  3678] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3678] pipe2([3, 4], 0)            = 0
[pid  3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 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  3679] pipe2([3, 4], 0)            = 0
[pid  3679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3674] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3674] exit_group(0)               = ?
[pid  3674] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3680
./strace-static-x86_64: Process 3680 attached
[pid  3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3680] setpgid(0, 0)               = 0
[pid  3675] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3675] exit_group(0 <unfinished ...>
[pid  3680] write(3, "1000", 4 <unfinished ...>
[pid  3675] <... exit_group resumed>)   = ?
[pid  3680] <... write resumed>)        = 4
[pid  3680] close(3)                    = 0
[pid  3680] mkdir("./file0", 0777 <unfinished ...>
[pid  3675] +++ exited with 0 +++
[pid  3680] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[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  3680] pipe2( <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3680] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] <... openat resumed>)       = 3
[pid  3680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[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  3676] <... mount resumed>)        = -1 EFAULT (Bad address)
./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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3681
[pid  3676] exit_group(0)               = ?
[pid  3676] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3682
./strace-static-x86_64: Process 3682 attached
[pid  3677] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3682] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3677] exit_group(0 <unfinished ...>
[pid  3682] <... prctl resumed>)        = 0
[pid  3677] <... exit_group resumed>)   = ?
[pid  3682] setpgid(0, 0 <unfinished ...>
[pid  3677] +++ exited with 0 +++
[pid  3682] <... setpgid resumed>)      = 0
[pid  3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3682] write(3, "1000", 4)         = 4
[pid  3682] close(3)                    = 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] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3683
./strace-static-x86_64: Process 3683 attached
[pid  3678] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] exit_group(0)               = ?
[pid  3678] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3683] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3683] <... prctl resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3683] setpgid(0, 0 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3683] <... setpgid resumed>)      = 0
[pid  3616] <... close resumed>)        = 0
[pid  3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3683] <... openat resumed>)       = 3
[pid  3683] write(3, "1000", 4./strace-static-x86_64: Process 3684 attached
)         = 4
[pid  3679] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556de1690) = 3684
[pid  3684] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3683] close(3 <unfinished ...>
[pid  3679] exit_group(0 <unfinished ...>
[pid  3684] <... prctl resumed>)        = 0
[pid  3683] <... close resumed>)        = 0
[pid  3679] <... exit_group resumed>)   = ?
[pid  3684] setpgid(0, 0 <unfinished ...>
[pid  3683] mkdir("./file0", 0777 <unfinished ...>
[pid  3679] +++ exited with 0 +++
[pid  3684] <... setpgid resumed>)      = 0
[pid  3683] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3612] --- 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] <... openat resumed>)       = 3
[pid  3683] pipe2( <unfinished ...>
[pid  3684] write(3, "1000", 4 <unfinished ...>
[pid  3683] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3684] <... write resumed>)        = 4
[pid  3683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3684] close(3 <unfinished ...>
[pid  3612] <... openat resumed>)       = 3
[pid  3684] <... close resumed>)        = 0
[pid  3612] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3684] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3612] close(3 <unfinished ...>
[pid  3684] pipe2([3, 4], 0)            = 0
[pid  3612] <... close resumed>)        = 0
[pid  3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3685
./strace-static-x86_64: Process 3685 attached
[pid  3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3685] setpgid(0, 0 <unfinished ...>
[pid  3681] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3685] <... setpgid resumed>)      = 0
[pid  3681] exit_group(0 <unfinished ...>
[pid  3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3681] <... exit_group resumed>)   = ?
[pid  3685] <... openat resumed>)       = 3
[pid  3681] +++ exited with 0 +++
[pid  3685] write(3, "1000", 4)         = 4
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3685] close(3 <unfinished ...>
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3685] <... close resumed>)        = 0
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3685] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3685] pipe2( <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3685] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <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=0x555556de1690) = 3686
[pid  3680] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3680] exit_group(0)               = ?
[pid  3680] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3686 attached
)       = -1 ENXIO (No such device or address)
[pid  3686] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3686] <... prctl resumed>)        = 0
[pid  3617] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3686] setpgid(0, 0./strace-static-x86_64: Process 3687 attached
)               = 0
[pid  3682] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3687] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3682] exit_group(0 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556de1690) = 3687
[pid  3687] <... prctl resumed>)        = 0
[pid  3686] <... openat resumed>)       = 3
[pid  3682] <... exit_group resumed>)   = ?
[pid  3687] setpgid(0, 0 <unfinished ...>
[pid  3686] write(3, "1000", 4 <unfinished ...>
[pid  3682] +++ exited with 0 +++
[pid  3687] <... setpgid resumed>)      = 0
[pid  3686] <... write resumed>)        = 4
[pid  3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3686] close(3 <unfinished ...>
[pid  3687] <... openat resumed>)       = 3
[pid  3686] <... close resumed>)        = 0
[pid  3687] write(3, "1000", 4 <unfinished ...>
[pid  3686] mkdir("./file0", 0777 <unfinished ...>
[pid  3687] <... write resumed>)        = 4
[pid  3686] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3687] close(3 <unfinished ...>
[pid  3686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3687] <... close resumed>)        = 0
[pid  3686] pipe2( <unfinished ...>
[pid  3687] mkdir("./file0", 0777 <unfinished ...>
[pid  3686] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3687] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3613] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3687] pipe2( <unfinished ...>
[pid  3613] <... restart_syscall resumed>) = 0
[pid  3687] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3685] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3685] exit_group(0 <unfinished ...>
[pid  3613] <... openat resumed>)       = 3
[pid  3685] <... exit_group resumed>)   = ?
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3685] +++ exited with 0 +++
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3612] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3688
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3689
./strace-static-x86_64: Process 3688 attached
[pid  3683] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3688] setpgid(0, 0)               = 0
[pid  3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3688] write(3, "1000", 4 <unfinished ...>
[pid  3683] exit_group(0 <unfinished ...>
[pid  3688] <... write resumed>)        = 4
[pid  3688] close(3)                    = 0
[pid  3688] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3683] <... exit_group resumed>)   = ?
[pid  3688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3688] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3689 attached
[pid  3688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3683] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3689] setpgid(0, 0)               = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3689] <... openat resumed>)       = 3
[pid  3618] close(3 <unfinished ...>
[pid  3689] write(3, "1000", 4 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3689] <... write resumed>)        = 4
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3689] close(3)                    = 0
[pid  3618] <... clone resumed>, child_tidptr=0x555556de1690) = 3690
[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
./strace-static-x86_64: Process 3690 attached
[pid  3689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[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( <unfinished ...>
[pid  3684] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3690] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3684] exit_group(0 <unfinished ...>
[pid  3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3684] <... exit_group resumed>)   = ?
[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/loop3", 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 <unfinished ...>
[pid  3686] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556de1690) = 3691
[pid  3686] exit_group(0)               = ?
./strace-static-x86_64: Process 3691 attached
[pid  3686] +++ exited with 0 +++
[pid  3691] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3691] <... prctl resumed>)        = 0
[pid  3691] setpgid(0, 0)               = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3691] <... openat resumed>)       = 3
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3691] write(3, "1000", 4 <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3691] <... write resumed>)        = 4
[pid  3615] close(3 <unfinished ...>
[pid  3691] close(3 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3692
[pid  3691] <... close resumed>)        = 0
[pid  3689] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3691] mkdir("./file0", 0777 <unfinished ...>
[pid  3689] exit_group(0 <unfinished ...>
[pid  3691] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3689] <... exit_group resumed>)   = ?
[pid  3691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3691] pipe2( <unfinished ...>
[pid  3689] +++ exited with 0 +++
[pid  3691] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
./strace-static-x86_64: Process 3692 attached
[pid  3691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3692] setpgid(0, 0)               = 0
[pid  3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3612] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3692] write(3, "1000", 4)         = 4
[pid  3692] close(3)                    = 0
[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  3692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3688] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3612] <... restart_syscall resumed>) = 0
[pid  3688] exit_group(0)               = ?
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3688] +++ exited with 0 +++
[pid  3612] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3612] close(3 <unfinished ...>
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3612] <... close resumed>)        = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3693
[pid  3612] <... clone resumed>, child_tidptr=0x555556de1690) = 3694
./strace-static-x86_64: Process 3694 attached
[pid  3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3694] setpgid(0, 0)               = 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(./strace-static-x86_64: Process 3693 attached
[3, 4], 0)            = 0
[pid  3690] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3690] exit_group(0 <unfinished ...>
[pid  3693] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3690] <... exit_group resumed>)   = ?
[pid  3693] <... prctl resumed>)        = 0
[pid  3690] +++ exited with 0 +++
[pid  3693] setpgid(0, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3693] <... setpgid resumed>)      = 0
[pid  3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3693] write(3, "1000", 4)         = 4
[pid  3693] close(3)                    = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3693] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3693] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3693] pipe2( <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3693] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... close resumed>)        = 0
[pid  3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3695 attached
 <unfinished ...>
[pid  3695] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556de1690) = 3695
[pid  3695] <... prctl resumed>)        = 0
[pid  3695] setpgid(0, 0)               = 0
[pid  3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3695] write(3, "1000", 4)         = 4
[pid  3695] close(3)                    = 0
[pid  3695] mkdir("./file0", 0777 <unfinished ...>
[pid  3687] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3695] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3687] exit_group(0 <unfinished ...>
[pid  3695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3687] <... exit_group resumed>)   = ?
[pid  3695] pipe2( <unfinished ...>
[pid  3687] +++ exited with 0 +++
[pid  3695] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3696
./strace-static-x86_64: Process 3696 attached
[pid  3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3696] setpgid(0, 0)               = 0
[pid  3691] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3691] exit_group(0 <unfinished ...>
[pid  3696] <... openat resumed>)       = 3
[pid  3691] <... exit_group resumed>)   = ?
[pid  3696] write(3, "1000", 4 <unfinished ...>
[pid  3691] +++ exited with 0 +++
[pid  3696] <... write resumed>)        = 4
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3697
[pid  3696] close(3./strace-static-x86_64: Process 3697 attached
)                    = 0
[pid  3693] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3697] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3696] mkdir("./file0", 0777 <unfinished ...>
[pid  3693] exit_group(0 <unfinished ...>
[pid  3697] <... prctl resumed>)        = 0
[pid  3696] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3693] <... exit_group resumed>)   = ?
[pid  3697] setpgid(0, 0 <unfinished ...>
[pid  3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3693] +++ exited with 0 +++
[pid  3697] <... setpgid resumed>)      = 0
[pid  3696] pipe2( <unfinished ...>
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3696] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3692] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3697] <... openat resumed>)       = 3
[pid  3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3692] exit_group(0 <unfinished ...>
[pid  3697] write(3, "1000", 4 <unfinished ...>
[pid  3692] <... exit_group resumed>)   = ?
[pid  3697] <... write resumed>)        = 4
[pid  3692] +++ exited with 0 +++
[pid  3697] close(3)                    = 0
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3697] mkdir("./file0", 0777 <unfinished ...>
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3697] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3697] pipe2([3, 4], 0)            = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] <... openat resumed>)       = 3
[pid  3615] close(3 <unfinished ...>
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3613] close(3 <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3698
[pid  3613] <... close resumed>)        = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3699
./strace-static-x86_64: Process 3698 attached
[pid  3698] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3699 attached
) = 0
[pid  3698] setpgid(0, 0)               = 0
[pid  3699] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3699] <... prctl resumed>)        = 0
[pid  3698] <... openat resumed>)       = 3
[pid  3694] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3694] exit_group(0)               = ?
[pid  3694] +++ exited with 0 +++
[pid  3699] setpgid(0, 0 <unfinished ...>
[pid  3698] write(3, "1000", 4 <unfinished ...>
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3699] <... setpgid resumed>)      = 0
[pid  3698] <... write resumed>)        = 4
[pid  3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3698] close(3 <unfinished ...>
[pid  3699] <... openat resumed>)       = 3
[pid  3698] <... close resumed>)        = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3699] write(3, "1000", 4 <unfinished ...>
[pid  3698] mkdir("./file0", 0777 <unfinished ...>
[pid  3612] <... openat resumed>)       = 3
[pid  3699] <... write resumed>)        = 4
[pid  3698] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3612] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3699] close(3 <unfinished ...>
[pid  3698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3699] <... close resumed>)        = 0
[pid  3698] pipe2( <unfinished ...>
[pid  3612] close(3 <unfinished ...>
[pid  3699] mkdir("./file0", 0777 <unfinished ...>
[pid  3698] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3612] <... close resumed>)        = 0
[pid  3699] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3699] pipe2([3, 4], 0)            = 0
[pid  3612] <... clone resumed>, child_tidptr=0x555556de1690) = 3700
[pid  3699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3700 attached
 <unfinished ...>
[pid  3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3700] setpgid(0, 0)               = 0
[pid  3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3700] write(3, "1000", 4)         = 4
[pid  3700] close(3)                    = 0
[pid  3700] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3700] pipe2([3, 4], 0)            = 0
[pid  3700] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3695] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3695] exit_group(0)               = ?
[pid  3695] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3701
./strace-static-x86_64: Process 3701 attached
[pid  3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3701] setpgid(0, 0)               = 0
[pid  3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3701] write(3, "1000", 4)         = 4
[pid  3701] close(3)                    = 0
[pid  3701] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3701] pipe2([3, 4], 0)            = 0
[pid  3701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3697] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3697] exit_group(0)               = ?
[pid  3697] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3702
./strace-static-x86_64: Process 3702 attached
[pid  3702] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3698] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3702] <... prctl resumed>)        = 0
[pid  3702] setpgid(0, 0)               = 0
[pid  3698] exit_group(0 <unfinished ...>
[pid  3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3698] <... exit_group resumed>)   = ?
[pid  3702] <... openat resumed>)       = 3
[pid  3698] +++ exited with 0 +++
[pid  3702] write(3, "1000", 4 <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3702] <... write resumed>)        = 4
[pid  3702] close(3)                    = 0
[pid  3702] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3702] pipe2( <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3702] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] <... openat resumed>)       = 3
[pid  3702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[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./strace-static-x86_64: Process 3703 attached
 <unfinished ...>
[pid  3696] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3703
[pid  3696] exit_group(0)               = ?
[pid  3696] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3704
./strace-static-x86_64: Process 3704 attached
[pid  3703] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3704] setpgid(0, 0 <unfinished ...>
[pid  3703] <... prctl resumed>)        = 0
[pid  3704] <... setpgid resumed>)      = 0
[pid  3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3703] setpgid(0, 0 <unfinished ...>
[pid  3704] <... openat resumed>)       = 3
[pid  3704] write(3, "1000", 4 <unfinished ...>
[pid  3703] <... setpgid resumed>)      = 0
[pid  3704] <... write resumed>)        = 4
[pid  3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3704] close(3)                    = 0
[pid  3703] <... openat resumed>)       = 3
[pid  3704] mkdir("./file0", 0777 <unfinished ...>
[pid  3703] write(3, "1000", 4 <unfinished ...>
[pid  3704] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3703] <... write resumed>)        = 4
[pid  3704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3704] pipe2( <unfinished ...>
[pid  3703] close(3 <unfinished ...>
[pid  3704] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3703] <... close resumed>)        = 0
[pid  3703] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3703] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3703] pipe2([3, 4], 0)            = 0
[pid  3703] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3699] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3699] exit_group(0)               = ?
[pid  3699] +++ exited with 0 +++
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3699, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3613] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3613] close(3)                    = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3705
./strace-static-x86_64: Process 3705 attached
[pid  3705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3705] setpgid(0, 0)               = 0
[pid  3705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3705] write(3, "1000", 4)         = 4
[pid  3705] close(3)                    = 0
[pid  3705] mkdir("./file0", 0777 <unfinished ...>
[pid  3700] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3705] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3700] exit_group(0 <unfinished ...>
[pid  3705] pipe2( <unfinished ...>
[pid  3700] <... exit_group resumed>)   = ?
[pid  3705] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3700] +++ exited with 0 +++
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3706
./strace-static-x86_64: Process 3706 attached
[pid  3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3706] setpgid(0, 0)               = 0
[pid  3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3706] write(3, "1000", 4)         = 4
[pid  3706] close(3)                    = 0
[pid  3706] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3706] pipe2([3, 4], 0)            = 0
[pid  3706] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3702] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3702] exit_group(0)               = ?
[pid  3702] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3707
./strace-static-x86_64: Process 3707 attached
[pid  3707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3701] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3707] setpgid(0, 0)               = 0
[pid  3701] exit_group(0 <unfinished ...>
[pid  3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3701] <... exit_group resumed>)   = ?
[pid  3707] write(3, "1000", 4)         = 4
[pid  3707] close(3 <unfinished ...>
[pid  3701] +++ exited with 0 +++
[pid  3707] <... close resumed>)        = 0
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3707] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3707] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3707] pipe2([3, 4], 0)            = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3708
./strace-static-x86_64: Process 3708 attached
[pid  3708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3708] setpgid(0, 0)               = 0
[pid  3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3708] write(3, "1000", 4)         = 4
[pid  3708] close(3)                    = 0
[pid  3704] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3708] mkdir("./file0", 0777 <unfinished ...>
[pid  3704] exit_group(0 <unfinished ...>
[pid  3708] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3704] <... exit_group resumed>)   = ?
[pid  3708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3708] pipe2([3, 4], 0)            = 0
[pid  3704] +++ exited with 0 +++
[pid  3708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3703] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3709
[pid  3703] exit_group(0)               = ?
./strace-static-x86_64: Process 3709 attached
[pid  3703] +++ exited with 0 +++
[pid  3709] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3705] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3709] <... prctl resumed>)        = 0
[pid  3615] <... openat resumed>)       = 3
[pid  3709] setpgid(0, 0 <unfinished ...>
[pid  3705] exit_group(0 <unfinished ...>
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3709] <... setpgid resumed>)      = 0
[pid  3705] <... exit_group resumed>)   = ?
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3615] close(3 <unfinished ...>
[pid  3709] <... openat resumed>)       = 3
[pid  3705] +++ exited with 0 +++
[pid  3615] <... close resumed>)        = 0
[pid  3709] write(3, "1000", 4 <unfinished ...>
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3709] <... write resumed>)        = 4
[pid  3709] close(3 <unfinished ...>
[pid  3706] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3710
[pid  3709] <... close resumed>)        = 0
[pid  3706] exit_group(0 <unfinished ...>
[pid  3709] mkdir("./file0", 0777 <unfinished ...>
[pid  3706] <... exit_group resumed>)   = ?
[pid  3709] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3706] +++ exited with 0 +++
[pid  3709] pipe2( <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3709] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3613] <... openat resumed>)       = 3
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
./strace-static-x86_64: Process 3710 attached
[pid  3709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3612] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3710] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3710] <... prctl resumed>)        = 0
[pid  3613] close(3 <unfinished ...>
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] <... close resumed>)        = 0
[pid  3710] setpgid(0, 0 <unfinished ...>
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3612] <... clone resumed>, child_tidptr=0x555556de1690) = 3711
[pid  3710] <... setpgid resumed>)      = 0
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3712
[pid  3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3711 attached
) = 3
[pid  3711] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3710] write(3, "1000", 4 <unfinished ...>
[pid  3711] <... prctl resumed>)        = 0
[pid  3710] <... write resumed>)        = 4
[pid  3711] setpgid(0, 0 <unfinished ...>
[pid  3710] close(3./strace-static-x86_64: Process 3712 attached
 <unfinished ...>
[pid  3711] <... setpgid resumed>)      = 0
[pid  3710] <... close resumed>)        = 0
[pid  3712] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3710] mkdir("./file0", 0777 <unfinished ...>
[pid  3707] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3712] <... prctl resumed>)        = 0
[pid  3711] <... openat resumed>)       = 3
[pid  3710] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3707] exit_group(0 <unfinished ...>
[pid  3712] setpgid(0, 0 <unfinished ...>
[pid  3711] write(3, "1000", 4 <unfinished ...>
[pid  3710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3707] <... exit_group resumed>)   = ?
[pid  3710] pipe2( <unfinished ...>
[pid  3711] <... write resumed>)        = 4
[pid  3712] <... setpgid resumed>)      = 0
[pid  3710] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3707] +++ exited with 0 +++
[pid  3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3711] close(3 <unfinished ...>
[pid  3710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3712] <... openat resumed>)       = 3
[pid  3711] <... close resumed>)        = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3712] write(3, "1000", 4 <unfinished ...>
[pid  3711] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3712] <... write resumed>)        = 4
[pid  3711] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] <... openat resumed>)       = 3
[pid  3712] close(3 <unfinished ...>
[pid  3711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[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 <unfinished ...>
[pid  3712] <... close resumed>)        = 0
[pid  3711] pipe2( <unfinished ...>
[pid  3712] mkdir("./file0", 0777 <unfinished ...>
[pid  3711] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556de1690) = 3713
[pid  3712] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3711] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3708] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3708] exit_group(0./strace-static-x86_64: Process 3713 attached
 <unfinished ...>
[pid  3712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3708] <... exit_group resumed>)   = ?
[pid  3713] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3712] pipe2( <unfinished ...>
[pid  3708] +++ exited with 0 +++
[pid  3713] <... prctl resumed>)        = 0
[pid  3712] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3713] setpgid(0, 0)               = 0
[pid  3712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3713] <... openat resumed>)       = 3
[pid  3618] <... openat resumed>)       = 3
[pid  3713] write(3, "1000", 4 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3713] <... write resumed>)        = 4
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3713] close(3 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3713] <... close resumed>)        = 0
[pid  3618] <... close resumed>)        = 0
[pid  3713] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3713] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] <... clone resumed>, child_tidptr=0x555556de1690) = 3714
[pid  3713] pipe2([3, 4], 0)            = 0
[pid  3713] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3714 attached
 <unfinished ...>
[pid  3714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3714] setpgid(0, 0)               = 0
[pid  3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3714] write(3, "1000", 4)         = 4
[pid  3714] close(3)                    = 0
[pid  3714] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3714] pipe2([3, 4], 0)            = 0
[pid  3714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3710] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3710] exit_group(0)               = ?
[pid  3710] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, 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/loop2", 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=0x555556de1690) = 3715
[pid  3709] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3709] exit_group(0)               = ?
[pid  3709] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3715 attached
) = 0
[pid  3715] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3715] <... prctl resumed>)        = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3715] setpgid(0, 0 <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3 <unfinished ...>
[pid  3715] <... setpgid resumed>)      = 0
[pid  3617] <... close resumed>)        = 0
[pid  3711] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3715] write(3, "1000", 4)         = 4
[pid  3715] close(3)                    = 0
[pid  3715] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3711] exit_group(0 <unfinished ...>
[pid  3715] pipe2( <unfinished ...>
[pid  3711] <... exit_group resumed>)   = ?
[pid  3715] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3715] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3711] +++ exited with 0 +++
[pid  3617] <... clone resumed>, child_tidptr=0x555556de1690) = 3716
./strace-static-x86_64: Process 3716 attached
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3711, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3716] setpgid(0, 0)               = 0
[pid  3612] <... openat resumed>)       = 3
[pid  3612] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3612] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3716] <... openat resumed>)       = 3
[pid  3612] close(3 <unfinished ...>
[pid  3716] write(3, "1000", 4 <unfinished ...>
[pid  3712] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3612] <... close resumed>)        = 0
[pid  3716] <... write resumed>)        = 4
[pid  3712] exit_group(0 <unfinished ...>
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3716] close(3 <unfinished ...>
[pid  3712] <... exit_group resumed>)   = ?
[pid  3716] <... close resumed>)        = 0
[pid  3712] +++ exited with 0 +++
[pid  3716] mkdir("./file0", 0777 <unfinished ...>
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] <... clone resumed>, child_tidptr=0x555556de1690) = 3717
[pid  3716] <... mkdir resumed>)        = -1 EEXIST (File exists)
./strace-static-x86_64: Process 3717 attached
[pid  3716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3717] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3716] pipe2( <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3717] <... prctl resumed>)        = 0
[pid  3716] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3717] setpgid(0, 0 <unfinished ...>
[pid  3613] <... openat resumed>)       = 3
[pid  3717] <... setpgid resumed>)      = 0
[pid  3716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3717] write(3, "1000", 4 <unfinished ...>
[pid  3613] close(3 <unfinished ...>
[pid  3717] <... write resumed>)        = 4
[pid  3613] <... close resumed>)        = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3717] close(3)                    = 0
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3718
./strace-static-x86_64: Process 3718 attached
[pid  3717] mkdir("./file0", 0777 <unfinished ...>
[pid  3718] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3717] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3718] <... prctl resumed>)        = 0
[pid  3717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3718] setpgid(0, 0 <unfinished ...>
[pid  3717] pipe2( <unfinished ...>
[pid  3718] <... setpgid resumed>)      = 0
[pid  3717] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3718] <... openat resumed>)       = 3
[pid  3718] write(3, "1000", 4)         = 4
[pid  3718] close(3)                    = 0
[pid  3718] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3718] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3718] pipe2([3, 4], 0)            = 0
[pid  3718] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3713] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3713] exit_group(0)               = ?
[pid  3713] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3715] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3715] exit_group(0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3715] <... exit_group resumed>)   = ?
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3715] +++ exited with 0 +++
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] <... close resumed>)        = 0
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556de1690) = 3719
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3714] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3719 attached
[pid  3714] exit_group(0 <unfinished ...>
[pid  3719] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3714] <... exit_group resumed>)   = ?
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3719] <... prctl resumed>)        = 0
[pid  3714] +++ exited with 0 +++
[pid  3719] setpgid(0, 0)               = 0
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3719] write(3, "1000", 4)         = 4
[pid  3719] close(3)                    = 0
[pid  3719] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3719] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3719] pipe2([3, 4], 0)            = 0
[pid  3719] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3615] close(3 <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3615] <... close resumed>)        = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3 <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3720
[pid  3618] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3721 attached
, child_tidptr=0x555556de1690) = 3721
./strace-static-x86_64: Process 3720 attached
[pid  3721] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3720] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3721] <... prctl resumed>)        = 0
[pid  3720] <... prctl resumed>)        = 0
[pid  3720] setpgid(0, 0)               = 0
[pid  3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3720] write(3, "1000", 4)         = 4
[pid  3720] close(3)                    = 0
[pid  3720] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3720] pipe2( <unfinished ...>
[pid  3721] setpgid(0, 0 <unfinished ...>
[pid  3720] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3721] <... setpgid resumed>)      = 0
[pid  3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3721] <... openat resumed>)       = 3
[pid  3721] write(3, "1000", 4)         = 4
[pid  3721] close(3)                    = 0
[pid  3721] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3721] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3721] pipe2([3, 4], 0)            = 0
[pid  3721] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3716] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3716] exit_group(0)               = ?
[pid  3716] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3722
[pid  3717] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3717] exit_group(0./strace-static-x86_64: Process 3722 attached
)               = ?
[pid  3717] +++ exited with 0 +++
[pid  3722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3722] setpgid(0, 0)               = 0
[pid  3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3722] write(3, "1000", 4)         = 4
[pid  3722] close(3)                    = 0
[pid  3722] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3722] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3722] pipe2([3, 4], 0)            = 0
[pid  3722] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3612] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3612] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3612] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3612] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3612] close(3)                    = 0
[pid  3612] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3723
./strace-static-x86_64: Process 3723 attached
[pid  3718] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3723] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3718] exit_group(0 <unfinished ...>
[pid  3723] <... prctl resumed>)        = 0
[pid  3718] <... exit_group resumed>)   = ?
[pid  3723] setpgid(0, 0 <unfinished ...>
[pid  3718] +++ exited with 0 +++
[pid  3723] <... setpgid resumed>)      = 0
[pid  3613] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3723] write(3, "1000", 4)         = 4
[pid  3723] close(3)                    = 0
[pid  3723] mkdir("./file0", 0777 <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3723] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3613] <... openat resumed>)       = 3
[pid  3723] pipe2( <unfinished ...>
[pid  3613] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3721] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3613] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3723] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3721] exit_group(0 <unfinished ...>
[pid  3613] close(3 <unfinished ...>
[pid  3723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3721] <... exit_group resumed>)   = ?
[pid  3613] <... close resumed>)        = 0
[pid  3613] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3721] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3613] <... clone resumed>, child_tidptr=0x555556de1690) = 3724
[pid  3618] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
./strace-static-x86_64: Process 3724 attached
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3724] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3724] <... prctl resumed>)        = 0
[pid  3618] close(3 <unfinished ...>
[pid  3724] setpgid(0, 0 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3724] <... setpgid resumed>)      = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3618] <... clone resumed>, child_tidptr=0x555556de1690) = 3725
[pid  3724] write(3, "1000", 4./strace-static-x86_64: Process 3725 attached
)         = 4
[pid  3720] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3725] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3720] exit_group(0 <unfinished ...>
[pid  3725] <... prctl resumed>)        = 0
[pid  3720] <... exit_group resumed>)   = ?
[pid  3725] setpgid(0, 0 <unfinished ...>
[pid  3720] +++ exited with 0 +++
[pid  3724] close(3 <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3724] <... close resumed>)        = 0
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3725] <... setpgid resumed>)      = 0
[pid  3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3724] mkdir("./file0", 0777 <unfinished ...>
[pid  3725] <... openat resumed>)       = 3
[pid  3724] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3615] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3725] write(3, "1000", 4)         = 4
[pid  3724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] <... openat resumed>)       = 3
[pid  3725] close(3 <unfinished ...>
[pid  3724] pipe2( <unfinished ...>
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3725] <... close resumed>)        = 0
[pid  3725] mkdir("./file0", 0777 <unfinished ...>
[pid  3724] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3725] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3725] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] close(3 <unfinished ...>
[pid  3725] pipe2( <unfinished ...>
[pid  3724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3725] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3726 attached
 <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556de1690) = 3726
[pid  3726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3726] setpgid(0, 0)               = 0
[pid  3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3726] write(3, "1000", 4)         = 4
[pid  3726] close(3)                    = 0
[pid  3726] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3726] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3726] pipe2([3, 4], 0)            = 0
[pid  3726] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3719] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3719] exit_group(0)               = ?
[pid  3719] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop3", 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=0x555556de1690) = 3727
./strace-static-x86_64: Process 3727 attached
[pid  3722] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3727] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3722] exit_group(0 <unfinished ...>
[pid  3727] <... prctl resumed>)        = 0
[pid  3722] <... exit_group resumed>)   = ?
[pid  3727] setpgid(0, 0 <unfinished ...>
[pid  3722] +++ exited with 0 +++
[pid  3727] <... setpgid resumed>)      = 0
[pid  3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3727] write(3, "1000", 4)         = 4
[pid  3727] close(3)                    = 0
[pid  3727] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3727] pipe2([3, 4], 0)            = 0
[pid  3727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556de1690) = 3728
./strace-static-x86_64: Process 3728 attached
[pid  3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3728] setpgid(0, 0)               = 0
[pid  3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3728] write(3, "1000", 4)         = 4
[pid  3728] close(3)                    = 0
[pid  3728] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3728] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
syzkaller login: [   47.668534][ T3723] ==================================================================
[   47.676804][ T3723] BUG: KASAN: use-after-free in __kernfs_remove+0xa09/0xb50
[   47.684115][ T3723] Read of size 2 at addr ffff888016f8b608 by task syz-executor495/3723
[   47.692546][ T3723] 
[   47.694889][ T3723] CPU: 0 PID: 3723 Comm: syz-executor495 Not tainted 6.0.0-rc6-syzkaller-00045-gdc164f4fb00a #0
[   47.705414][ T3723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2022
[   47.715491][ T3723] Call Trace:
[pid  3728] pipe2([3, 4], 0)            = 0
[   47.718789][ T3723]  <TASK>
[   47.721736][ T3723]  dump_stack_lvl+0xcd/0x134
[   47.726374][ T3723]  print_report.cold+0x2ba/0x719
[   47.731334][ T3723]  ? __kernfs_remove+0xa09/0xb50
[   47.736303][ T3723]  kasan_report+0xb1/0x1e0
[   47.740744][ T3723]  ? __kernfs_remove+0xa09/0xb50
[   47.745792][ T3723]  __kernfs_remove+0xa09/0xb50
[   47.750588][ T3723]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   47.756604][ T3723]  ? kernfs_name_hash+0xf1/0x120
[   47.761563][ T3723]  kernfs_remove_by_name_ns+0xa8/0x110
[   47.767052][ T3723]  sysfs_slab_add+0x13e/0x1e0
[   47.771758][ T3723]  __kmem_cache_create+0x509/0x690
[   47.776914][ T3723]  kmem_cache_create_usercopy+0x1f9/0x300
[   47.782654][ T3723]  p9_client_create+0xca5/0x1070
[   47.787708][ T3723]  ? p9_client_rpc+0xce0/0xce0
[   47.792494][ T3723]  ? lockdep_init_map_type+0x21a/0x7f0
[   47.797973][ T3723]  ? rcu_read_lock_sched_held+0x3a/0x70
[   47.803621][ T3723]  ? __raw_spin_lock_init+0x36/0x110
[   47.808931][ T3723]  v9fs_session_init+0x1e2/0x1810
[   47.813990][ T3723]  ? find_held_lock+0x2d/0x110
[   47.818886][ T3723]  ? v9fs_show_options+0x780/0x780
[   47.824120][ T3723]  ? rcu_read_lock_sched_held+0x3a/0x70
[   47.829690][ T3723]  ? trace_kmalloc+0x32/0x100
[   47.834409][ T3723]  v9fs_mount+0xba/0xc90
[   47.838676][ T3723]  ? v9fs_statfs+0x4d0/0x4d0
[   47.843285][ T3723]  ? apparmor_capable+0x1d8/0x460
[   47.848424][ T3723]  ? v9fs_statfs+0x4d0/0x4d0
[   47.853034][ T3723]  legacy_get_tree+0x105/0x220
[   47.857823][ T3723]  vfs_get_tree+0x89/0x2f0
[   47.862345][ T3723]  path_mount+0x1326/0x1e20
[   47.866879][ T3723]  ? kmem_cache_free+0xeb/0x5b0
[   47.871756][ T3723]  ? finish_automount+0x960/0x960
[   47.876806][ T3723]  ? putname+0xfe/0x140
[   47.880997][ T3723]  __x64_sys_mount+0x27f/0x300
[   47.885786][ T3723]  ? copy_mnt_ns+0xae0/0xae0
[   47.890401][ T3723]  ? lockdep_hardirqs_on+0x79/0x100
[   47.895624][ T3723]  ? _raw_spin_unlock_irq+0x2a/0x40
[   47.900839][ T3723]  ? ptrace_notify+0xfa/0x140
[   47.905522][ T3723]  do_syscall_64+0x35/0xb0
[   47.909929][ T3723]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   47.915816][ T3723] RIP: 0033:0x7f54e8ed0f39
[   47.920247][ T3723] 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
[   47.939875][ T3723] RSP: 002b:00007ffc4c9415d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   47.948328][ T3723] RAX: ffffffffffffffda RBX: 00007ffc4c941610 RCX: 00007f54e8ed0f39
[   47.956332][ T3723] RDX: 0000000020000140 RSI: 00000000200002c0 RDI: 0000000000000000
[   47.964329][ T3723] RBP: 0000000000000000 R08: 0000000020000380 R09: 000000000000b8d5
[   47.972330][ T3723] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   47.980331][ T3723] R13: 000000000000b8d5 R14: 00007ffc4c9415fc R15: 00007ffc4c941600
[   47.988326][ T3723]  </TASK>
[   47.991369][ T3723] 
[   47.993711][ T3723] Allocated by task 3722:
[   47.998050][ T3723]  kasan_save_stack+0x1e/0x40
[   48.002756][ T3723]  __kasan_slab_alloc+0x90/0xc0
[   48.007632][ T3723]  kmem_cache_alloc+0x267/0x3b0
[   48.012502][ T3723]  __kernfs_new_node+0xd4/0x8b0
[   48.017382][ T3723]  kernfs_create_dir_ns+0x9c/0x220
[   48.022520][ T3723]  sysfs_create_dir_ns+0x127/0x290
[   48.027653][ T3723]  kobject_add_internal+0x2c9/0x8f0
[   48.032871][ T3723]  kobject_init_and_add+0x101/0x160
[   48.038092][ T3723]  sysfs_slab_add+0x161/0x1e0
[   48.042790][ T3723]  __kmem_cache_create+0x509/0x690
[   48.047916][ T3723]  kmem_cache_create_usercopy+0x1f9/0x300
[   48.053651][ T3723]  p9_client_create+0xca5/0x1070
[   48.058604][ T3723]  v9fs_session_init+0x1e2/0x1810
[   48.063644][ T3723]  v9fs_mount+0xba/0xc90
[   48.067932][ T3723]  legacy_get_tree+0x105/0x220
[   48.072732][ T3723]  vfs_get_tree+0x89/0x2f0
[   48.077164][ T3723]  path_mount+0x1326/0x1e20
[   48.081697][ T3723]  __x64_sys_mount+0x27f/0x300
[   48.086529][ T3723]  do_syscall_64+0x35/0xb0
[   48.090956][ T3723]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.096876][ T3723] 
[   48.099213][ T3723] Freed by task 3723:
[   48.103221][ T3723]  kasan_save_stack+0x1e/0x40
[   48.107918][ T3723]  kasan_set_track+0x21/0x30
[   48.112540][ T3723]  kasan_set_free_info+0x20/0x30
[   48.117502][ T3723]  ____kasan_slab_free+0x166/0x1c0
[   48.122615][ T3723]  slab_free_freelist_hook+0x8b/0x1c0
[   48.128012][ T3723]  kmem_cache_free+0xeb/0x5b0
[   48.132707][ T3723]  kernfs_put.part.0+0x2c4/0x540
[   48.137664][ T3723]  kernfs_put+0x42/0x50
[   48.142317][ T3723]  __kernfs_remove+0x7a6/0xb50
[   48.147101][ T3723]  kernfs_remove_by_name_ns+0xa8/0x110
[   48.152560][ T3723]  sysfs_slab_add+0x13e/0x1e0
[   48.157251][ T3723]  __kmem_cache_create+0x509/0x690
[   48.162391][ T3723]  kmem_cache_create_usercopy+0x1f9/0x300
[   48.168145][ T3723]  p9_client_create+0xca5/0x1070
[   48.173186][ T3723]  v9fs_session_init+0x1e2/0x1810
[   48.178227][ T3723]  v9fs_mount+0xba/0xc90
[   48.182488][ T3723]  legacy_get_tree+0x105/0x220
[   48.187281][ T3723]  vfs_get_tree+0x89/0x2f0
[   48.191720][ T3723]  path_mount+0x1326/0x1e20
[   48.196238][ T3723]  __x64_sys_mount+0x27f/0x300
[   48.200996][ T3723]  do_syscall_64+0x35/0xb0
[   48.205435][ T3723]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.211347][ T3723] 
[   48.213716][ T3723] The buggy address belongs to the object at ffff888016f8b570
[   48.213716][ T3723]  which belongs to the cache kernfs_node_cache of size 168
[   48.228303][ T3723] The buggy address is located 152 bytes inside of
[   48.228303][ T3723]  168-byte region [ffff888016f8b570, ffff888016f8b618)
[   48.241590][ T3723] 
[   48.243925][ T3723] The buggy address belongs to the physical page:
[   48.250342][ T3723] page:ffffea00005be2c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16f8b
[   48.260523][ T3723] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[   48.268261][ T3723] raw: 00fff00000000200 ffffea00005c88c0 dead000000000002 ffff888140007b40
[   48.276852][ T3723] raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
[   48.285433][ T3723] page dumped because: kasan: bad access detected
[   48.291856][ T3723] page_owner tracks the page as allocated
[   48.297583][ T3723] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid 1 (swapper/0), ts 1511627515, free_ts 0
[   48.314185][ T3723]  get_page_from_freelist+0x109b/0x2ce0
[   48.319759][ T3723]  __alloc_pages+0x1c7/0x510
[   48.324376][ T3723]  alloc_page_interleave+0x1e/0x200
[   48.329597][ T3723]  alloc_pages+0x22f/0x270
[   48.334119][ T3723]  allocate_slab+0x27e/0x3d0
[   48.338729][ T3723]  ___slab_alloc+0x7f1/0xe10
[   48.343332][ T3723]  __slab_alloc.constprop.0+0x4d/0xa0
[   48.348719][ T3723]  kmem_cache_alloc+0x38c/0x3b0
[   48.353562][ T3723]  __kernfs_new_node+0xd4/0x8b0
[   48.358420][ T3723]  kernfs_new_node+0x93/0x120
[   48.363117][ T3723]  __kernfs_create_file+0x51/0x350
[   48.368426][ T3723]  sysfs_add_file_mode_ns+0x20f/0x3f0
[   48.373813][ T3723]  internal_create_group+0x322/0xb10
[   48.379109][ T3723]  param_sysfs_init+0x342/0x43b
[   48.383956][ T3723]  do_one_initcall+0xfe/0x650
[   48.388660][ T3723]  kernel_init_freeable+0x6b1/0x73a
[   48.393882][ T3723] page_owner free stack trace missing
[   48.399247][ T3723] 
[   48.401570][ T3723] Memory state around the buggy address:
[   48.407201][ T3723]  ffff888016f8b500: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb
[   48.415254][ T3723]  ffff888016f8b580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   48.423335][ T3723] >ffff888016f8b600: fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb
[   48.431416][ T3723]                       ^
[   48.435762][ T3723]  ffff888016f8b680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   48.443825][ T3723]  ffff888016f8b700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
[   48.451878][ T3723] ==================================================================
[   48.460612][ T3723] Kernel panic - not syncing: panic_on_warn set ...
[   48.467215][ T3723] CPU: 0 PID: 3723 Comm: syz-executor495 Not tainted 6.0.0-rc6-syzkaller-00045-gdc164f4fb00a #0
[   48.477624][ T3723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2022
[   48.487676][ T3723] Call Trace:
[   48.490973][ T3723]  <TASK>
[   48.493895][ T3723]  dump_stack_lvl+0xcd/0x134
[   48.498488][ T3723]  panic+0x2c8/0x627
[   48.502383][ T3723]  ? panic_print_sys_info.part.0+0x10b/0x10b
[   48.508362][ T3723]  ? preempt_schedule_common+0x59/0xc0
[   48.513822][ T3723]  ? preempt_schedule_thunk+0x16/0x18
[   48.519193][ T3723]  ? __kernfs_remove+0xa09/0xb50
[   48.524215][ T3723]  end_report.part.0+0x3f/0x7c
[   48.528975][ T3723]  kasan_report.cold+0xa/0xf
[   48.533560][ T3723]  ? __kernfs_remove+0xa09/0xb50
[   48.538496][ T3723]  __kernfs_remove+0xa09/0xb50
[   48.543253][ T3723]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   48.549229][ T3723]  ? kernfs_name_hash+0xf1/0x120
[   48.554160][ T3723]  kernfs_remove_by_name_ns+0xa8/0x110
[   48.559612][ T3723]  sysfs_slab_add+0x13e/0x1e0
[   48.564282][ T3723]  __kmem_cache_create+0x509/0x690
[   48.569392][ T3723]  kmem_cache_create_usercopy+0x1f9/0x300
[   48.575116][ T3723]  p9_client_create+0xca5/0x1070
[   48.580049][ T3723]  ? p9_client_rpc+0xce0/0xce0
[   48.584810][ T3723]  ? lockdep_init_map_type+0x21a/0x7f0
[   48.590263][ T3723]  ? rcu_read_lock_sched_held+0x3a/0x70
[   48.595802][ T3723]  ? __raw_spin_lock_init+0x36/0x110
[   48.601095][ T3723]  v9fs_session_init+0x1e2/0x1810
[   48.606118][ T3723]  ? find_held_lock+0x2d/0x110
[   48.610884][ T3723]  ? v9fs_show_options+0x780/0x780
[   48.615993][ T3723]  ? rcu_read_lock_sched_held+0x3a/0x70
[   48.621541][ T3723]  ? trace_kmalloc+0x32/0x100
[   48.626208][ T3723]  v9fs_mount+0xba/0xc90
[   48.630456][ T3723]  ? v9fs_statfs+0x4d0/0x4d0
[   48.635039][ T3723]  ? apparmor_capable+0x1d8/0x460
[   48.640054][ T3723]  ? v9fs_statfs+0x4d0/0x4d0
[   48.644634][ T3723]  legacy_get_tree+0x105/0x220
[   48.649401][ T3723]  vfs_get_tree+0x89/0x2f0
[   48.653810][ T3723]  path_mount+0x1326/0x1e20
[   48.658309][ T3723]  ? kmem_cache_free+0xeb/0x5b0
[   48.663152][ T3723]  ? finish_automount+0x960/0x960
[   48.668174][ T3723]  ? putname+0xfe/0x140
[   48.672322][ T3723]  __x64_sys_mount+0x27f/0x300
[   48.677082][ T3723]  ? copy_mnt_ns+0xae0/0xae0
[   48.681662][ T3723]  ? lockdep_hardirqs_on+0x79/0x100
[   48.686852][ T3723]  ? _raw_spin_unlock_irq+0x2a/0x40
[   48.692037][ T3723]  ? ptrace_notify+0xfa/0x140
[   48.696725][ T3723]  do_syscall_64+0x35/0xb0
[   48.701141][ T3723]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.707035][ T3723] RIP: 0033:0x7f54e8ed0f39
[   48.711444][ T3723] 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
[   48.731053][ T3723] RSP: 002b:00007ffc4c9415d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   48.739464][ T3723] RAX: ffffffffffffffda RBX: 00007ffc4c941610 RCX: 00007f54e8ed0f39
[   48.747431][ T3723] RDX: 0000000020000140 RSI: 00000000200002c0 RDI: 0000000000000000
[   48.755394][ T3723] RBP: 0000000000000000 R08: 0000000020000380 R09: 000000000000b8d5
[   48.763385][ T3723] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   48.771347][ T3723] R13: 000000000000b8d5 R14: 00007ffc4c9415fc R15: 00007ffc4c941600
[   48.779332][ T3723]  </TASK>
[   48.783153][ T3723] Kernel Offset: disabled
[   48.787471][ T3723] Rebooting in 86400 seconds..