./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2303245479

<...>
Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts.
execve("./syz-executor2303245479", ["./syz-executor2303245479"], 0x7ffcd2c752f0 /* 10 vars */) = 0
brk(NULL)                               = 0x555556743000
brk(0x555556743d00)                     = 0x555556743d00
arch_prctl(ARCH_SET_FS, 0x5555567433c0) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2303245479", 4096) = 28
brk(0x555556764d00)                     = 0x555556764d00
brk(0x555556765000)                     = 0x555556765000
mprotect(0x7fe8d6d53000, 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=0x7fe8d6ca40a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fe8d6ca4c20}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7fe8d6ca40a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fe8d6ca4c20}, NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3608 attached
, child_tidptr=0x555556743690) = 3608
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x555556743690) = 3609
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3610
[pid  3608] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3610 attached
[pid  3608] close(3./strace-static-x86_64: Process 3609 attached
 <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x555556743690) = 3611
./strace-static-x86_64: Process 3611 attached
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3610] <... openat resumed>)       = 3
[pid  3609] <... openat resumed>)       = 3
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3609] close(3 <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3612
[pid  3610] <... close resumed>)        = 0
[pid  3609] <... close resumed>)        = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3612 attached
 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x555556743690) = 3613
[pid  3609] <... clone resumed>, child_tidptr=0x555556743690) = 3614
[pid  3612] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3615 attached
./strace-static-x86_64: Process 3613 attached
) = 0
[pid  3607] <... clone resumed>, child_tidptr=0x555556743690) = 3615
[pid  3613] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3612] setpgid(0, 0 <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] <... prctl resumed>)        = 0
[pid  3612] <... setpgid resumed>)      = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3614 attached
 <unfinished ...>
[pid  3613] setpgid(0, 0 <unfinished ...>
[pid  3612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x555556743690) = 3616
[pid  3613] <... setpgid resumed>)      = 0
[pid  3612] <... openat resumed>)       = 3
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3614] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3612] write(3, "1000", 4 <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3614] <... prctl resumed>)        = 0
[pid  3613] <... openat resumed>)       = 3
[pid  3612] <... write resumed>)        = 4
[pid  3611] <... openat resumed>)       = 3
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3614] setpgid(0, 0 <unfinished ...>
[pid  3613] write(3, "1000", 4 <unfinished ...>
[pid  3612] close(3 <unfinished ...>
[pid  3611] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3616 attached
 <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3614] <... setpgid resumed>)      = 0
[pid  3613] <... write resumed>)        = 4
[pid  3612] <... close resumed>)        = 0
[pid  3611] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3615] close(3 <unfinished ...>
[pid  3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3613] close(3 <unfinished ...>
[pid  3612] mkdir("./file0", 0777 <unfinished ...>
[pid  3611] close(3 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3611] <... close resumed>)        = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3613] <... close resumed>)        = 0
[pid  3612] <... mkdir resumed>)        = 0
[pid  3614] <... openat resumed>)       = 3
[pid  3613] mkdir("./file0", 0777 <unfinished ...>
[pid  3611] <... clone resumed>, child_tidptr=0x555556743690) = 3618
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3614] write(3, "1000", 4 <unfinished ...>
[pid  3613] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3612] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] <... clone resumed>, child_tidptr=0x555556743690) = 3619
[pid  3614] <... write resumed>)        = 4
[pid  3613] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3612] pipe2( <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3614] close(3 <unfinished ...>
[pid  3613] pipe2( <unfinished ...>
[pid  3612] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3614] <... close resumed>)        = 0
[pid  3613] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3612] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3619 attached
./strace-static-x86_64: Process 3618 attached
 <unfinished ...>
[pid  3614] mkdir("./file0", 0777 <unfinished ...>
[pid  3613] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3619] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3618] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... prctl resumed>)        = 0
[pid  3618] <... prctl resumed>)        = 0
[pid  3619] setpgid(0, 0 <unfinished ...>
[pid  3618] setpgid(0, 0 <unfinished ...>
[pid  3614] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] <... setpgid resumed>)      = 0
[pid  3618] <... setpgid resumed>)      = 0
[pid  3614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3618] <... openat resumed>)       = 3
[pid  3614] pipe2( <unfinished ...>
[pid  3619] write(3, "1000", 4 <unfinished ...>
[pid  3618] write(3, "1000", 4 <unfinished ...>
[pid  3614] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... write resumed>)        = 4
[pid  3618] <... write resumed>)        = 4
[pid  3619] close(3 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3618] <... close resumed>)        = 0
[pid  3619] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3614] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3619] pipe2( <unfinished ...>
[pid  3618] pipe2( <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3619] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3618] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3620
./strace-static-x86_64: Process 3620 attached
[pid  3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3620] setpgid(0, 0)               = 0
[pid  3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3620] write(3, "1000", 4)         = 4
[pid  3620] close(3)                    = 0
[pid  3620] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] pipe2([3, 4], 0)            = 0
[   43.864942][ T3613] Cache volume key already in use (9p,,)
[   43.877297][ T3614] Cache volume key already in use (9p,,)
[   43.879745][ T3619] Cache volume key already in use (9p,,)
[   43.899716][ T3618] Cache volume key already in use (9p,,)
[pid  3620] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3612] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3612] exit_group(0)               = ?
[pid  3612] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3612, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3621
./strace-static-x86_64: Process 3621 attached
[pid  3621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3621] setpgid(0, 0)               = 0
[pid  3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3621] write(3, "1000", 4)         = 4
[pid  3621] close(3)                    = 0
[pid  3621] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3621] pipe2([3, 4], 0)            = 0
[pid  3621] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3614] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3614] exit_group(0)               = ?
[pid  3614] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3614, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3609] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3622
./strace-static-x86_64: Process 3622 attached
[pid  3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3622] setpgid(0, 0)               = 0
[pid  3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3622] write(3, "1000", 4)         = 4
[pid  3622] close(3)                    = 0
[pid  3622] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] pipe2([3, 4], 0)            = 0
[pid  3622] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3613] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3613] exit_group(0)               = ?
[pid  3613] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3613, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3623
./strace-static-x86_64: Process 3623 attached
[pid  3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3623] setpgid(0, 0)               = 0
[pid  3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3623] write(3, "1000", 4)         = 4
[pid  3623] close(3)                    = 0
[pid  3623] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3623] pipe2([3, 4], 0)            = 0
[pid  3623] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3619] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] exit_group(0)               = ?
[pid  3619] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3628
./strace-static-x86_64: Process 3628 attached
[pid  3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3628] setpgid(0, 0)               = 0
[pid  3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3628] write(3, "1000", 4)         = 4
[pid  3628] close(3)                    = 0
[pid  3628] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3628] pipe2([3, 4], 0)            = 0
[pid  3628] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3618] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] exit_group(0)               = ?
[pid  3618] +++ exited with 0 +++
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3618, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3611] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3629
./strace-static-x86_64: Process 3629 attached
[   44.210046][ T3622] Cache volume key already in use (9p,,)
[   44.212891][ T3628] Cache volume key already in use (9p,,)
[   44.216064][ T3621] Cache volume key already in use (9p,,)
[   44.222542][ T3623] Cache volume key already in use (9p,,)
[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  3622] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] exit_group(0)               = ?
[pid  3622] +++ exited with 0 +++
[pid  3629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3629] pipe2([3, 4], 0)            = 0
[pid  3629] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3620] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] exit_group(0)               = ?
[pid  3620] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, 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/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3628] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3628] exit_group(0)               = ?
[pid  3628] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3615] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3632 attached
 <unfinished ...>
[pid  3632] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556743690) = 3632
[pid  3632] <... prctl resumed>)        = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3621] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3621] exit_group(0)               = ?
[pid  3621] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3633
[pid  3623] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3633 attached
[pid  3623] exit_group(0 <unfinished ...>
[pid  3633] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3623] <... exit_group resumed>)   = ?
[pid  3633] <... prctl resumed>)        = 0
[pid  3623] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3633] setpgid(0, 0 <unfinished ...>
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3633] <... setpgid resumed>)      = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3633] <... openat resumed>)       = 3
[pid  3610] <... close resumed>)        = 0
[pid  3633] write(3, "1000", 4 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3633] <... write resumed>)        = 4
[pid  3633] close(3)                    = 0
[pid  3610] <... clone resumed>, child_tidptr=0x555556743690) = 3634
[pid  3633] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3634 attached
[pid  3633] pipe2([3, 4], 0)            = 0
[pid  3634] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3633] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3634] <... prctl resumed>)        = 0
[pid  3634] setpgid(0, 0)               = 0
[pid  3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3634] write(3, "1000", 4)         = 4
[pid  3634] close(3)                    = 0
[pid  3634] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3634] pipe2([3, 4], 0)            = 0
[   44.482917][ T3629] Cache volume key already in use (9p,,)
[pid  3634] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3630] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3630] exit_group(0)               = ?
[pid  3630] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3629] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3609] close(3 <unfinished ...>
[pid  3629] exit_group(0 <unfinished ...>
[pid  3609] <... close resumed>)        = 0
[pid  3629] <... exit_group resumed>)   = ?
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3629] +++ exited with 0 +++
[pid  3609] <... clone resumed>, child_tidptr=0x555556743690) = 3635
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3635 attached
[pid  3611] close(3 <unfinished ...>
[pid  3635] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3611] <... close resumed>)        = 0
[pid  3635] <... prctl resumed>)        = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3635] setpgid(0, 0)               = 0
[pid  3611] <... clone resumed>, child_tidptr=0x555556743690) = 3636
[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)
[   44.549587][ T3631] Cache volume key already in use (9p,,)
[   44.577392][ T3633] Cache volume key already in use (9p,,)
[   44.586537][ T3634] Cache volume key already in use (9p,,)
[pid  3635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3635] pipe2([3, 4], 0)            = 0
[pid  3635] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3636 attached
 <unfinished ...>
[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 <unfinished ...>
[pid  3632] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3632] exit_group(0)               = ?
[pid  3632] +++ exited with 0 +++
[pid  3636] <... openat resumed>)       = 3
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3636] write(3, "1000", 4 <unfinished ...>
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3636] <... write resumed>)        = 4
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3636] close(3)                    = 0
[pid  3636] mkdir("./file0", 0777 <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3636] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3615] <... openat resumed>)       = 3
[pid  3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3636] pipe2( <unfinished ...>
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3636] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] close(3 <unfinished ...>
[pid  3636] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3637
./strace-static-x86_64: Process 3637 attached
[pid  3631] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3631] exit_group(0)               = ?
[pid  3631] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3637] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3637] <... prctl resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3637] setpgid(0, 0 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3637] <... setpgid resumed>)      = 0
[pid  3616] <... close resumed>)        = 0
[pid  3637] 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  3637] <... openat resumed>)       = 3
[pid  3637] write(3, "1000", 4)         = 4
[pid  3616] <... clone resumed>, child_tidptr=0x555556743690) = 3638
[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(./strace-static-x86_64: Process 3638 attached
[3, 4], 0)            = 0
[pid  3637] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[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 <unfinished ...>
[pid  3634] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3638] <... write resumed>)        = 4
[pid  3634] exit_group(0 <unfinished ...>
[pid  3638] close(3 <unfinished ...>
[pid  3634] <... exit_group resumed>)   = ?
[pid  3638] <... close resumed>)        = 0
[pid  3634] +++ exited with 0 +++
[pid  3638] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3638] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3638] pipe2( <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3638] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3610] <... openat resumed>)       = 3
[pid  3638] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3639
./strace-static-x86_64: Process 3639 attached
[pid  3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3633] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3633] exit_group(0)               = ?
[pid  3633] +++ exited with 0 +++
[pid  3639] setpgid(0, 0)               = 0
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3639] <... openat resumed>)       = 3
[pid  3608] <... openat resumed>)       = 3
[pid  3639] write(3, "1000", 4 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3639] <... write resumed>)        = 4
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3639] close(3 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3639] <... close resumed>)        = 0
[pid  3608] <... close resumed>)        = 0
[pid  3639] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3639] pipe2(./strace-static-x86_64: Process 3640 attached
[3, 4], 0)            = 0
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3640
[pid  3640] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[   44.783029][ T3636] Cache volume key already in use (9p,,)
[   44.785528][ T3637] Cache volume key already in use (9p,,)
[   44.790446][ T3638] Cache volume key already in use (9p,,)
[pid  3639] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3640] <... prctl resumed>)        = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3635] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3635] exit_group(0)               = ?
[pid  3635] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3641
./strace-static-x86_64: Process 3641 attached
[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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3638] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3638] exit_group(0)               = ?
[pid  3638] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3636] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3636] exit_group(0)               = ?
[pid  3636] +++ exited with 0 +++
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3611] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3643
./strace-static-x86_64: Process 3643 attached
[pid  3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3643] setpgid(0, 0)               = 0
[pid  3637] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3637] exit_group(0 <unfinished ...>
[pid  3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3637] <... exit_group resumed>)   = ?
[pid  3643] <... openat resumed>)       = 3
[pid  3637] +++ exited with 0 +++
[pid  3643] write(3, "1000", 4)         = 4
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3643] close(3 <unfinished ...>
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3643] <... close resumed>)        = 0
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3643] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3643] pipe2( <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3643] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3643] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <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=0x555556743690) = 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
[   45.009264][ T3640] Cache volume key already in use (9p,,)
[   45.015685][ T3641] Cache volume key already in use (9p,,)
[   45.022729][ T3642] Cache volume key already in use (9p,,)
[   45.028184][ T3643] Cache volume key already in use (9p,,)
[pid  3644] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3639] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3639] exit_group(0)               = ?
[pid  3639] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3645
./strace-static-x86_64: Process 3645 attached
[pid  3645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3641] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3641] exit_group(0)               = ?
[pid  3641] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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  3640] <... mount resumed>)        = -1 EFAULT (Bad address)
[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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3640] exit_group(0)               = ?
[pid  3640] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3642] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3642] exit_group(0)               = ?
[pid  3642] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3648 attached
, child_tidptr=0x555556743690) = 3648
[pid  3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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([3, 4], 0)            = 0
[pid  3648] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3643] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3643] exit_group(0)               = ?
[pid  3643] +++ exited with 0 +++
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3611] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3649
./strace-static-x86_64: Process 3649 attached
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3649] setpgid(0, 0)               = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3649] write(3, "1000", 4)         = 4
[pid  3649] close(3)                    = 0
[pid  3649] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3649] pipe2([3, 4], 0)            = 0
[   45.276017][ T3645] Cache volume key already in use (9p,,)
[pid  3649] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3644] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3644] exit_group(0)               = ?
[pid  3644] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3650 attached
 <unfinished ...>
[pid  3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3615] <... clone resumed>, child_tidptr=0x555556743690) = 3650
[pid  3650] setpgid(0, 0)               = 0
[pid  3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3650] write(3, "1000", 4)         = 4
[pid  3650] close(3)                    = 0
[pid  3650] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3650] pipe2([3, 4], 0)            = 0
[   45.322043][ T3649] Cache volume key already in use (9p,,)
[   45.325575][ T3647] Cache volume key already in use (9p,,)
[   45.333721][ T3648] Cache volume key already in use (9p,,)
[pid  3650] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3645] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3645] exit_group(0)               = ?
[pid  3645] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3651
[pid  3646] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3646] exit_group(0)               = ?
[pid  3646] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
./strace-static-x86_64: Process 3651 attached
[pid  3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3651] setpgid(0, 0 <unfinished ...>
[pid  3609] <... openat resumed>)       = 3
[pid  3651] <... setpgid resumed>)      = 0
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3651] <... openat resumed>)       = 3
[pid  3609] close(3 <unfinished ...>
[pid  3651] write(3, "1000", 4 <unfinished ...>
[pid  3609] <... close resumed>)        = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3652
[pid  3651] <... write resumed>)        = 4
[pid  3651] close(3)                    = 0
[pid  3651] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3652 attached
[pid  3648] <... mount resumed>)        = -1 EFAULT (Bad address)
[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 <unfinished ...>
[pid  3651] pipe2( <unfinished ...>
[pid  3648] exit_group(0 <unfinished ...>
[pid  3652] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3651] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3648] <... exit_group resumed>)   = ?
[pid  3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3651] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3652] pipe2( <unfinished ...>
[pid  3648] +++ exited with 0 +++
[pid  3652] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3652] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3653
./strace-static-x86_64: Process 3653 attached
[pid  3647] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3647] exit_group(0)               = ?
[pid  3647] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3653] setpgid(0, 0)               = 0
[pid  3608] <... openat resumed>)       = 3
[pid  3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3653] <... openat resumed>)       = 3
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3653] write(3, "1000", 4 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3653] <... write resumed>)        = 4
[pid  3653] close(3 <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3653] <... close resumed>)        = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[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( <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3654
[pid  3653] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3653] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3654 attached
 <unfinished ...>
[pid  3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3654] setpgid(0, 0)               = 0
[pid  3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3654] write(3, "1000", 4)         = 4
[pid  3654] close(3)                    = 0
[pid  3654] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3654] pipe2([3, 4], 0)            = 0
[pid  3654] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3649] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3649] exit_group(0)               = ?
[pid  3649] +++ exited with 0 +++
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3611] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3650] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3650] exit_group(0)               = ?
[   45.588006][ T3651] Cache volume key already in use (9p,,)
[   45.597737][ T3655] Cache volume key already in use (9p,,)
[   45.599365][ T3652] Cache volume key already in use (9p,,)
[   45.609996][ T3654] Cache volume key already in use (9p,,)
[   45.616132][ T3653] Cache volume key already in use (9p,,)
[pid  3650] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3656
./strace-static-x86_64: Process 3656 attached
[pid  3651] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3651] exit_group(0 <unfinished ...>
[pid  3656] setpgid(0, 0 <unfinished ...>
[pid  3651] <... exit_group resumed>)   = ?
[pid  3656] <... setpgid resumed>)      = 0
[pid  3651] +++ exited with 0 +++
[pid  3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3656] <... openat resumed>)       = 3
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3656] write(3, "1000", 4)         = 4
[pid  3652] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... clone resumed>, child_tidptr=0x555556743690) = 3657
./strace-static-x86_64: Process 3657 attached
[pid  3656] close(3 <unfinished ...>
[pid  3652] exit_group(0 <unfinished ...>
[pid  3657] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3656] <... close resumed>)        = 0
[pid  3652] <... exit_group resumed>)   = ?
[pid  3657] <... prctl resumed>)        = 0
[pid  3656] mkdir("./file0", 0777 <unfinished ...>
[pid  3657] setpgid(0, 0 <unfinished ...>
[pid  3656] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3652] +++ exited with 0 +++
[pid  3657] <... setpgid resumed>)      = 0
[pid  3656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3658 attached
 <unfinished ...>
[pid  3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3656] pipe2( <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x555556743690) = 3658
[pid  3657] <... openat resumed>)       = 3
[pid  3656] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3654] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3657] write(3, "1000", 4 <unfinished ...>
[pid  3656] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3654] exit_group(0 <unfinished ...>
[pid  3658] <... prctl resumed>)        = 0
[pid  3657] <... write resumed>)        = 4
[pid  3654] <... exit_group resumed>)   = ?
[pid  3657] close(3 <unfinished ...>
[pid  3658] setpgid(0, 0 <unfinished ...>
[pid  3657] <... close resumed>)        = 0
[pid  3654] +++ exited with 0 +++
[pid  3658] <... setpgid resumed>)      = 0
[pid  3657] mkdir("./file0", 0777 <unfinished ...>
[pid  3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3657] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3658] <... openat resumed>)       = 3
[pid  3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3658] write(3, "1000", 4 <unfinished ...>
[pid  3657] pipe2( <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3659 attached
 <unfinished ...>
[pid  3658] <... write resumed>)        = 4
[pid  3657] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3659] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3658] close(3 <unfinished ...>
[pid  3657] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3653] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3659
[pid  3653] exit_group(0)               = ?
[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/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3658] <... close resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3659] <... prctl resumed>)        = 0
[pid  3658] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3659] setpgid(0, 0 <unfinished ...>
[pid  3658] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] <... close resumed>)        = 0
[pid  3659] <... setpgid resumed>)      = 0
[pid  3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3658] pipe2( <unfinished ...>
[pid  3659] <... openat resumed>)       = 3
[pid  3658] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556743690) = 3660
./strace-static-x86_64: Process 3660 attached
[pid  3659] write(3, "1000", 4 <unfinished ...>
[pid  3658] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3660] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3659] <... write resumed>)        = 4
[pid  3655] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3659] close(3 <unfinished ...>
[pid  3655] exit_group(0 <unfinished ...>
[pid  3660] <... prctl resumed>)        = 0
[pid  3659] <... close resumed>)        = 0
[pid  3655] <... exit_group resumed>)   = ?
[pid  3660] setpgid(0, 0 <unfinished ...>
[pid  3659] mkdir("./file0", 0777 <unfinished ...>
[pid  3655] +++ exited with 0 +++
[pid  3659] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3660] <... setpgid resumed>)      = 0
[pid  3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3659] pipe2( <unfinished ...>
[pid  3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3659] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3660] write(3, "1000", 4 <unfinished ...>
[pid  3659] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3660] <... write resumed>)        = 4
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3660] close(3 <unfinished ...>
[pid  3611] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3660] <... close resumed>)        = 0
[pid  3611] close(3 <unfinished ...>
[pid  3660] mkdir("./file0", 0777 <unfinished ...>
[pid  3611] <... close resumed>)        = 0
[pid  3660] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3660] pipe2([3, 4], 0)            = 0
[pid  3611] <... clone resumed>, child_tidptr=0x555556743690) = 3661
[pid  3660] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3661 attached
 <unfinished ...>
[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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3656] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] exit_group(0)               = ?
[pid  3656] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[   45.809460][ T3657] Cache volume key already in use (9p,,)
[   45.815704][ T3658] Cache volume key already in use (9p,,)
[   45.831280][ T3659] Cache volume key already in use (9p,,)
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3662
[pid  3657] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3662 attached
[pid  3657] exit_group(0 <unfinished ...>
[pid  3662] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3657] <... exit_group resumed>)   = ?
[pid  3662] <... prctl resumed>)        = 0
[pid  3657] +++ exited with 0 +++
[pid  3662] setpgid(0, 0)               = 0
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3662] <... openat resumed>)       = 3
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3662] write(3, "1000", 4)         = 4
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3662] close(3 <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3662] <... close resumed>)        = 0
[pid  3610] <... close resumed>)        = 0
[pid  3662] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3662] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3658] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3658] exit_group(0 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x555556743690) = 3663
[pid  3662] pipe2( <unfinished ...>
[pid  3658] <... exit_group resumed>)   = ?
[pid  3662] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3662] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3663 attached
 <unfinished ...>
[pid  3658] +++ exited with 0 +++
[pid  3663] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3 <unfinished ...>
[pid  3663] <... prctl resumed>)        = 0
[pid  3609] <... close resumed>)        = 0
[pid  3663] setpgid(0, 0 <unfinished ...>
[pid  3659] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3663] <... setpgid resumed>)      = 0
[pid  3659] exit_group(0 <unfinished ...>
[pid  3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3659] <... exit_group resumed>)   = ?
[pid  3609] <... clone resumed>, child_tidptr=0x555556743690) = 3664
[pid  3663] <... openat resumed>)       = 3
[pid  3663] write(3, "1000", 4 <unfinished ...>
[pid  3659] +++ exited with 0 +++
./strace-static-x86_64: Process 3664 attached
[pid  3663] <... write resumed>)        = 4
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3664] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3663] close(3 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3664] <... prctl resumed>)        = 0
[pid  3663] <... close resumed>)        = 0
[pid  3660] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3608] <... openat resumed>)       = 3
[pid  3664] setpgid(0, 0 <unfinished ...>
[pid  3663] mkdir("./file0", 0777 <unfinished ...>
[pid  3660] exit_group(0 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3664] <... setpgid resumed>)      = 0
[pid  3663] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3660] <... exit_group resumed>)   = ?
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] close(3 <unfinished ...>
[pid  3664] <... openat resumed>)       = 3
[pid  3663] pipe2( <unfinished ...>
[pid  3660] +++ exited with 0 +++
[pid  3608] <... close resumed>)        = 0
[pid  3664] write(3, "1000", 4 <unfinished ...>
[pid  3663] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3664] <... write resumed>)        = 4
[pid  3663] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3664] close(3 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3665
[pid  3664] <... close resumed>)        = 0
[pid  3616] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3665 attached
[pid  3664] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3665] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3664] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[   45.965627][ T3661] Cache volume key already in use (9p,,)
[pid  3665] <... prctl resumed>)        = 0
[pid  3664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] close(3 <unfinished ...>
[pid  3665] setpgid(0, 0 <unfinished ...>
[pid  3664] pipe2( <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3665] <... setpgid resumed>)      = 0
[pid  3664] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3664] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3666 attached
 <unfinished ...>
[pid  3665] <... openat resumed>)       = 3
[pid  3616] <... clone resumed>, child_tidptr=0x555556743690) = 3666
[pid  3666] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3665] write(3, "1000", 4 <unfinished ...>
[pid  3666] <... prctl resumed>)        = 0
[pid  3665] <... write resumed>)        = 4
[pid  3666] setpgid(0, 0 <unfinished ...>
[pid  3665] close(3 <unfinished ...>
[pid  3666] <... setpgid resumed>)      = 0
[pid  3665] <... close resumed>)        = 0
[pid  3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3665] mkdir("./file0", 0777 <unfinished ...>
[pid  3666] <... openat resumed>)       = 3
[pid  3665] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3666] write(3, "1000", 4 <unfinished ...>
[pid  3665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3666] <... write resumed>)        = 4
[pid  3665] pipe2( <unfinished ...>
[pid  3666] close(3 <unfinished ...>
[pid  3665] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3666] <... close resumed>)        = 0
[pid  3666] mkdir("./file0", 0777 <unfinished ...>
[pid  3665] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3661] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3661] exit_group(0)               = ?
[pid  3661] +++ exited with 0 +++
[pid  3666] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3666] pipe2( <unfinished ...>
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3666] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3611] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3666] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3611] <... restart_syscall resumed>) = 0
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3662] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3662] exit_group(0)               = ?
[pid  3662] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3669
./strace-static-x86_64: Process 3669 attached
[pid  3669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3669] setpgid(0, 0)               = 0
[   46.127517][ T3667] Cache volume key already in use (9p,,)
[   46.132542][ T3664] Cache volume key already in use (9p,,)
[   46.139504][ T3665] Cache volume key already in use (9p,,)
[   46.146249][ T3666] Cache volume key already in use (9p,,)
[pid  3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3669] write(3, "1000", 4)         = 4
[pid  3669] close(3)                    = 0
[pid  3669] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3669] pipe2([3, 4], 0)            = 0
[pid  3669] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3667] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3667] exit_group(0)               = ?
[pid  3667] +++ exited with 0 +++
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3670 attached
, child_tidptr=0x555556743690) = 3670
[pid  3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3670] setpgid(0, 0)               = 0
[pid  3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3670] write(3, "1000", 4)         = 4
[pid  3670] close(3)                    = 0
[pid  3670] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3670] pipe2([3, 4], 0)            = 0
[pid  3670] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3663] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3663] exit_group(0)               = ?
[pid  3663] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3671
./strace-static-x86_64: Process 3671 attached
[pid  3665] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3671] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3665] exit_group(0 <unfinished ...>
[pid  3671] <... prctl resumed>)        = 0
[pid  3665] <... exit_group resumed>)   = ?
[pid  3671] setpgid(0, 0)               = 0
[pid  3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3665] +++ exited with 0 +++
[pid  3664] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3671] <... openat resumed>)       = 3
[pid  3664] exit_group(0 <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3671] write(3, "1000", 4 <unfinished ...>
[pid  3664] <... exit_group resumed>)   = ?
[pid  3671] <... write resumed>)        = 4
[pid  3664] +++ exited with 0 +++
[pid  3671] close(3 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3671] <... close resumed>)        = 0
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] <... openat resumed>)       = 3
[pid  3671] mkdir("./file0", 0777 <unfinished ...>
[pid  3609] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3671] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3609] <... restart_syscall resumed>) = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] close(3 <unfinished ...>
[pid  3671] pipe2( <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3671] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3609] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3672 attached
[pid  3672] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3671] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3609] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3672
[pid  3672] <... prctl resumed>)        = 0
[pid  3609] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3672] setpgid(0, 0)               = 0
[pid  3609] close(3 <unfinished ...>
[pid  3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3609] <... close resumed>)        = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3672] write(3, "1000", 4)         = 4
[pid  3672] close(3)                    = 0
[pid  3672] mkdir("./file0", 0777 <unfinished ...>
[pid  3609] <... clone resumed>, child_tidptr=0x555556743690) = 3673
[pid  3672] <... mkdir resumed>)        = -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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3673 attached
 <unfinished ...>
[pid  3666] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3673] setpgid(0, 0)               = 0
[pid  3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3666] exit_group(0 <unfinished ...>
[pid  3673] write(3, "1000", 4 <unfinished ...>
[pid  3666] <... exit_group resumed>)   = ?
[pid  3673] <... write resumed>)        = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3666] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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
[   46.357274][ T3670] Cache volume key already in use (9p,,)
[   46.360442][ T3671] Cache volume key already in use (9p,,)
[   46.367816][ T3672] Cache volume key already in use (9p,,)
[pid  3674] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3669] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3669] exit_group(0)               = ?
[pid  3669] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3615] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3615] close(3)                    = 0
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3675
[pid  3670] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3670] exit_group(0)               = ?
./strace-static-x86_64: Process 3675 attached
[pid  3670] +++ exited with 0 +++
[pid  3675] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3675] <... prctl resumed>)        = 0
[pid  3611] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3675] setpgid(0, 0 <unfinished ...>
[pid  3611] <... restart_syscall resumed>) = 0
[pid  3675] <... setpgid resumed>)      = 0
[pid  3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3675] <... openat resumed>)       = 3
[pid  3611] <... openat resumed>)       = 3
[pid  3675] write(3, "1000", 4 <unfinished ...>
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3676
[pid  3675] <... write resumed>)        = 4
[pid  3675] close(3)                    = 0
[pid  3672] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3675] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3672] exit_group(0./strace-static-x86_64: Process 3676 attached
 <unfinished ...>
[pid  3675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3672] <... exit_group resumed>)   = ?
[pid  3676] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3675] pipe2( <unfinished ...>
[pid  3672] +++ exited with 0 +++
[pid  3675] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3675] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3677
./strace-static-x86_64: Process 3677 attached
[pid  3676] <... prctl resumed>)        = 0
[pid  3676] setpgid(0, 0)               = 0
[pid  3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3677] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3676] <... openat resumed>)       = 3
[pid  3677] <... prctl resumed>)        = 0
[pid  3676] write(3, "1000", 4 <unfinished ...>
[pid  3677] setpgid(0, 0)               = 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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3671] <... mount resumed>)        = -1 EFAULT (Bad address)
[   46.496459][ T3674] Cache volume key already in use (9p,,)
[pid  3671] exit_group(0)               = ?
[pid  3671] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 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) = 3
[pid  3678] write(3, "1000", 4)         = 4
[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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3673] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3673] exit_group(0)               = ?
[pid  3673] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3679
./strace-static-x86_64: Process 3679 attached
[pid  3679] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3674] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3674] exit_group(0)               = ?
[pid  3679] <... prctl resumed>)        = 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  3674] +++ exited with 0 +++
[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("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3680
./strace-static-x86_64: Process 3680 attached
[pid  3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3680] setpgid(0, 0)               = 0
[pid  3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3680] write(3, "1000", 4)         = 4
[pid  3680] close(3)                    = 0
[   46.658266][ T3675] Cache volume key already in use (9p,,)
[   46.664731][ T3677] Cache volume key already in use (9p,,)
[   46.666111][ T3679] Cache volume key already in use (9p,,)
[   46.672653][ T3676] Cache volume key already in use (9p,,)
[pid  3680] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3680] pipe2([3, 4], 0)            = 0
[pid  3680] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3677] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3677] exit_group(0)               = ?
[pid  3677] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3678] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] exit_group(0)               = ?
[pid  3678] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3608] <... close resumed>)        = 0
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x555556743690) = 3681
[pid  3675] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... close resumed>)        = 0
[pid  3675] exit_group(0 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3675] <... exit_group resumed>)   = ?
[pid  3610] <... clone resumed>, child_tidptr=0x555556743690) = 3682
./strace-static-x86_64: Process 3681 attached
[pid  3675] +++ exited with 0 +++
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
./strace-static-x86_64: Process 3682 attached
[pid  3681] setpgid(0, 0 <unfinished ...>
[pid  3682] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3681] <... setpgid resumed>)      = 0
[pid  3682] <... prctl resumed>)        = 0
[pid  3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3676] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3682] setpgid(0, 0 <unfinished ...>
[pid  3681] <... openat resumed>)       = 3
[pid  3676] exit_group(0 <unfinished ...>
[pid  3682] <... setpgid resumed>)      = 0
[pid  3681] write(3, "1000", 4 <unfinished ...>
[pid  3676] <... exit_group resumed>)   = ?
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3681] <... write resumed>)        = 4
[pid  3676] +++ exited with 0 +++
[pid  3615] <... openat resumed>)       = 3
[pid  3682] <... openat resumed>)       = 3
[pid  3681] close(3 <unfinished ...>
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3682] write(3, "1000", 4 <unfinished ...>
[pid  3681] <... close resumed>)        = 0
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3682] <... write resumed>)        = 4
[pid  3681] mkdir("./file0", 0777 <unfinished ...>
[pid  3679] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3682] close(3 <unfinished ...>
[pid  3681] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3679] exit_group(0 <unfinished ...>
[pid  3615] close(3 <unfinished ...>
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3682] <... close resumed>)        = 0
[pid  3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3679] <... exit_group resumed>)   = ?
[pid  3615] <... close resumed>)        = 0
[pid  3611] <... openat resumed>)       = 3
[pid  3682] mkdir("./file0", 0777 <unfinished ...>
[pid  3681] pipe2( <unfinished ...>
[pid  3679] +++ exited with 0 +++
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3611] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3682] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3681] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
./strace-static-x86_64: Process 3683 attached
[pid  3682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3681] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3680] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] <... clone resumed>, child_tidptr=0x555556743690) = 3683
[pid  3611] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3609] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3682] pipe2( <unfinished ...>
[pid  3611] close(3 <unfinished ...>
[pid  3609] <... restart_syscall resumed>) = 0
[pid  3682] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3611] <... close resumed>)        = 0
[pid  3682] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3680] exit_group(0 <unfinished ...>
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3611] <... clone resumed>, child_tidptr=0x555556743690) = 3684
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3685
./strace-static-x86_64: Process 3684 attached
[pid  3683] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3680] <... exit_group resumed>)   = ?
[pid  3683] <... prctl resumed>)        = 0
[pid  3683] setpgid(0, 0 <unfinished ...>
[pid  3680] +++ exited with 0 +++
[pid  3684] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3683] <... setpgid resumed>)      = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
./strace-static-x86_64: Process 3685 attached
[pid  3684] <... prctl resumed>)        = 0
[pid  3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3685] setpgid(0, 0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3685] <... setpgid resumed>)      = 0
[pid  3684] setpgid(0, 0 <unfinished ...>
[pid  3683] <... openat resumed>)       = 3
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3684] <... setpgid resumed>)      = 0
[pid  3683] write(3, "1000", 4 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3685] <... openat resumed>)       = 3
[pid  3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3683] <... write resumed>)        = 4
[pid  3616] close(3 <unfinished ...>
[pid  3685] write(3, "1000", 4 <unfinished ...>
[pid  3684] <... openat resumed>)       = 3
[pid  3683] close(3 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3685] <... write resumed>)        = 4
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3685] close(3 <unfinished ...>
[pid  3684] write(3, "1000", 4 <unfinished ...>
[pid  3683] <... close resumed>)        = 0
[pid  3685] <... close resumed>)        = 0
[pid  3684] <... write resumed>)        = 4
[pid  3683] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556743690) = 3686
[pid  3685] mkdir("./file0", 0777 <unfinished ...>
[pid  3684] close(3 <unfinished ...>
[pid  3683] <... mkdir resumed>)        = -1 EEXIST (File exists)
./strace-static-x86_64: Process 3686 attached
[pid  3685] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3686] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3686] <... prctl resumed>)        = 0
[pid  3685] pipe2( <unfinished ...>
[pid  3686] setpgid(0, 0 <unfinished ...>
[pid  3685] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3686] <... setpgid resumed>)      = 0
[pid  3685] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3684] <... close resumed>)        = 0
[pid  3683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3686] <... openat resumed>)       = 3
[pid  3684] mkdir("./file0", 0777 <unfinished ...>
[pid  3683] pipe2( <unfinished ...>
[pid  3681] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3686] write(3, "1000", 4 <unfinished ...>
[pid  3684] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3683] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3686] <... write resumed>)        = 4
[pid  3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3681] exit_group(0 <unfinished ...>
[pid  3683] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3686] close(3 <unfinished ...>
[pid  3684] pipe2( <unfinished ...>
[pid  3686] <... close resumed>)        = 0
[pid  3684] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3681] <... exit_group resumed>)   = ?
[pid  3686] mkdir("./file0", 0777 <unfinished ...>
[pid  3684] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3686] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3686] pipe2([3, 4], 0)            = 0
[pid  3686] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3681] +++ exited with 0 +++
[   46.872467][ T3682] Cache volume key already in use (9p,,)
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3687 attached
, child_tidptr=0x555556743690) = 3687
[pid  3687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3687] setpgid(0, 0)               = 0
[pid  3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3687] write(3, "1000", 4)         = 4
[pid  3687] close(3)                    = 0
[pid  3687] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3682] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3687] pipe2( <unfinished ...>
[pid  3682] exit_group(0 <unfinished ...>
[pid  3687] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3682] <... exit_group resumed>)   = ?
[pid  3687] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3682] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3688
./strace-static-x86_64: Process 3688 attached
[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)         = 4
[pid  3688] close(3)                    = 0
[pid  3688] mkdir("./file0", 0777 <unfinished ...>
[pid  3685] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3688] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3688] pipe2([3, 4], 0)            = 0
[pid  3688] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[   46.962456][ T3684] Cache volume key already in use (9p,,)
[   46.972527][ T3686] Cache volume key already in use (9p,,)
[   46.979897][ T3683] Cache volume key already in use (9p,,)
[pid  3685] exit_group(0)               = ?
[pid  3685] +++ exited with 0 +++
[pid  3609] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3609] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3609] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3609] close(3)                    = 0
[pid  3609] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3689
./strace-static-x86_64: Process 3689 attached
[pid  3689] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3684] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3689] <... prctl resumed>)        = 0
[pid  3684] exit_group(0 <unfinished ...>
[pid  3689] setpgid(0, 0 <unfinished ...>
[pid  3684] <... exit_group resumed>)   = ?
[pid  3689] <... setpgid resumed>)      = 0
[pid  3684] +++ exited with 0 +++
[pid  3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3689] <... openat resumed>)       = 3
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3689] write(3, "1000", 4 <unfinished ...>
[pid  3686] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3689] <... write resumed>)        = 4
[pid  3686] exit_group(0 <unfinished ...>
[pid  3611] <... clone resumed>, child_tidptr=0x555556743690) = 3690
[pid  3689] close(3 <unfinished ...>
[pid  3686] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3690 attached
[pid  3689] <... close resumed>)        = 0
[pid  3689] mkdir("./file0", 0777 <unfinished ...>
[pid  3686] +++ exited with 0 +++
[pid  3690] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3689] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3690] <... prctl resumed>)        = 0
[pid  3689] pipe2( <unfinished ...>
[pid  3690] setpgid(0, 0 <unfinished ...>
[pid  3689] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3690] <... setpgid resumed>)      = 0
[pid  3689] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3690] <... openat resumed>)       = 3
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3690] write(3, "1000", 4 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3690] <... write resumed>)        = 4
[pid  3616] close(3 <unfinished ...>
[pid  3690] close(3 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3690] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3690] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3690] pipe2([3, 4], 0)            = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556743690) = 3691
[pid  3690] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3691 attached
 <unfinished ...>
[pid  3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3691] setpgid(0, 0)               = 0
[pid  3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3691] write(3, "1000", 4)         = 4
[pid  3691] close(3 <unfinished ...>
[pid  3683] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3683] exit_group(0)               = ?
[pid  3691] <... close resumed>)        = 0
[pid  3683] +++ exited with 0 +++
[pid  3691] mkdir("./file0", 0777 <unfinished ...>
[pid  3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3691] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3691] pipe2([3, 4], 0)            = 0
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3691] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3615] <... openat resumed>)       = 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=0x555556743690) = 3692
./strace-static-x86_64: Process 3692 attached
[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  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
[   47.156050][ T3688] Cache volume key already in use (9p,,)
[pid  3692] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3687] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3687] exit_group(0)               = ?
[pid  3687] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[   47.198269][ T3692] Cache volume key already in use (9p,,)
[   47.199153][ T3689] Cache volume key already in use (9p,,)
[   47.206563][ T3690] Cache volume key already in use (9p,,)
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3693
./strace-static-x86_64: Process 3693 attached
[pid  3693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3693] setpgid(0, 0)               = 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  3693] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3693] pipe2([3, 4], 0)            = 0
[pid  3693] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3688] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3688] exit_group(0)               = ?
[pid  3688] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3 <unfinished ...>
[pid  3690] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... close resumed>)        = 0
[pid  3690] exit_group(0 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3690] <... exit_group resumed>)   = ?
[pid  3610] <... clone resumed>, child_tidptr=0x555556743690) = 3694
[pid  3690] +++ exited with 0 +++
[pid  3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3611] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3611] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3611] close(3)                    = 0
[pid  3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3695
./strace-static-x86_64: Process 3694 attached
[pid  3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3694] setpgid(0, 0 <unfinished ...>
[pid  3692] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3694] <... setpgid resumed>)      = 0
[pid  3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3692] exit_group(0 <unfinished ...>
[pid  3694] <... openat resumed>)       = 3
[pid  3692] <... exit_group resumed>)   = ?
[pid  3694] write(3, "1000", 4./strace-static-x86_64: Process 3695 attached
)         = 4
[pid  3692] +++ exited with 0 +++
[pid  3694] close(3 <unfinished ...>
[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  3695] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3694] <... close resumed>)        = 0
[pid  3615] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3695] <... prctl resumed>)        = 0
[pid  3694] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3695] setpgid(0, 0 <unfinished ...>
[pid  3694] pipe2( <unfinished ...>
[pid  3615] <... restart_syscall resumed>) = 0
[pid  3695] <... setpgid resumed>)      = 0
[pid  3694] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[   47.354802][ T3694] ==================================================================
[   47.362895][ T3694] BUG: KASAN: use-after-free in __kernfs_remove+0xf2d/0x1180
[   47.370260][ T3694] Read of size 2 at addr ffff88807491e438 by task syz-executor230/3694
[   47.378495][ T3694] 
[   47.380804][ T3694] CPU: 0 PID: 3694 Comm: syz-executor230 Not tainted 6.0.0-rc4-syzkaller-00302-gb96fbd602d35 #0
[   47.391194][ T3694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   47.401227][ T3694] Call Trace:
[pid  3694] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[pid  3695] <... openat resumed>)       = 3
[pid  3691] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3695] write(3, "1000", 4 <unfinished ...>
[pid  3691] exit_group(0 <unfinished ...>
[pid  3615] <... openat resumed>)       = 3
[pid  3695] <... write resumed>)        = 4
[pid  3691] <... exit_group resumed>)   = ?
[pid  3615] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3695] close(3 <unfinished ...>
[pid  3691] +++ exited with 0 +++
[pid  3615] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3695] <... close resumed>)        = 0
[pid  3615] close(3 <unfinished ...>
[pid  3695] mkdir("./file0", 0777 <unfinished ...>
[pid  3615] <... close resumed>)        = 0
[pid  3695] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3695] pipe2( <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556743690) = 3696
[pid  3695] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3695] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose"./strace-static-x86_64: Process 3696 attached
 <unfinished ...>
[pid  3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3696] setpgid(0, 0)               = 0
[pid  3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3696] write(3, "1000", 4)         = 4
[pid  3696] close(3)                    = 0
[pid  3696] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3696] pipe2([3, 4], 0)            = 0
[pid  3696] mount("", "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,cache=loose" <unfinished ...>
[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/loop5", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556743690) = 3697
./strace-static-x86_64: Process 3697 attached
[pid  3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3697] setpgid(0, 0)               = 0
[pid  3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3697] write(3, "1000", 4)         = 4
[pid  3697] close(3)                    = 0
[pid  3697] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3697] pipe2([3, 4], 0)            = 0
[   47.404498][ T3694]  <TASK>
[   47.407436][ T3694]  dump_stack_lvl+0x1e3/0x2cb
[   47.412142][ T3694]  ? io_alloc_page_table+0x110/0x110
[   47.417453][ T3694]  ? _printk+0xcf/0x10f
[   47.421801][ T3694]  ? __wake_up_klogd+0xd6/0x100
[   47.426668][ T3694]  ? __wake_up_klogd+0xcd/0x100
[   47.431529][ T3694]  ? panic+0x76b/0x76b
[   47.435632][ T3694]  ? _printk+0xcf/0x10f
[   47.439810][ T3694]  print_address_description+0x65/0x4b0
[   47.445460][ T3694]  print_report+0x108/0x220
[   47.449981][ T3694]  ? kernfs_put+0x340/0x490
[   47.454504][ T3694]  ? kmem_cache_free+0x95/0x1d0
[   47.459360][ T3694]  ? __kernfs_remove+0xf2d/0x1180
[   47.464375][ T3694]  kasan_report+0xfb/0x130
[   47.468779][ T3694]  ? __kernfs_remove+0xf2d/0x1180
[   47.473794][ T3694]  __kernfs_remove+0xf2d/0x1180
[   47.478636][ T3694]  ? kernfs_iop_rename+0x7d0/0x7d0
[   47.483740][ T3694]  ? kernfs_find_ns+0x4d6/0x550
[   47.488588][ T3694]  kernfs_remove_by_name_ns+0x96/0xe0
[   47.493952][ T3694]  sysfs_slab_add+0x54/0x270
[   47.498541][ T3694]  __kmem_cache_create+0x34/0x170
[   47.503559][ T3694]  kmem_cache_create_usercopy+0x1a6/0x340
[   47.509359][ T3694]  p9_client_create+0xbbe/0x1030
[   47.514293][ T3694]  ? do_trace_9p_fid_put+0x20/0x20
[   47.519398][ T3694]  ? lockdep_softirqs_off+0x420/0x420
[   47.524763][ T3694]  ? __raw_spin_lock_init+0x41/0x100
[   47.530048][ T3694]  v9fs_session_init+0x1e3/0x1990
[   47.535071][ T3694]  ? v9fs_show_options+0x600/0x600
[   47.540174][ T3694]  ? kmem_cache_alloc_trace+0x97/0x310
[   47.545625][ T3694]  ? v9fs_mount+0xae/0xcb0
[   47.550034][ T3694]  v9fs_mount+0xd2/0xcb0
[   47.554265][ T3694]  ? vfs_parse_fs_param+0x294/0x410
[   47.559454][ T3694]  ? vfs_parse_fs_string+0x1dd/0x2a0
[   47.564991][ T3694]  ? xfs_fs_commit_blocks+0x8d0/0x8d0
[   47.570352][ T3694]  ? smack_sb_eat_lsm_opts+0x34d/0x990
[   47.575801][ T3694]  ? cap_capable+0x1b5/0x250
[   47.580384][ T3694]  legacy_get_tree+0xea/0x180
[   47.585064][ T3694]  ? xfs_fs_commit_blocks+0x8d0/0x8d0
[   47.590425][ T3694]  vfs_get_tree+0x88/0x270
[   47.594829][ T3694]  do_new_mount+0x289/0xad0
[   47.599425][ T3694]  ? do_move_mount_old+0x160/0x160
[   47.604530][ T3694]  ? user_path_at_empty+0x149/0x1a0
[   47.609736][ T3694]  __se_sys_mount+0x2e3/0x3d0
[   47.614578][ T3694]  ? __x64_sys_mount+0xc0/0xc0
[   47.619356][ T3694]  ? syscall_enter_from_user_mode+0x2e/0x1d0
[   47.625327][ T3694]  ? __x64_sys_mount+0x1c/0xc0
[   47.630080][ T3694]  do_syscall_64+0x2b/0x70
[   47.634484][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   47.640370][ T3694] RIP: 0033:0x7fe8d6ce6fc9
[   47.644789][ T3694] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   47.664415][ T3694] RSP: 002b:00007ffd77953a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   47.672845][ T3694] RAX: ffffffffffffffda RBX: 00007ffd77953a50 RCX: 00007fe8d6ce6fc9
[   47.680814][ T3694] RDX: 0000000020000240 RSI: 00000000200000c0 RDI: 0000000020000000
[   47.689124][ T3694] RBP: 0000000000000000 R08: 00000000200004c0 R09: 000000000000b764
[   47.697101][ T3694] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   47.705149][ T3694] R13: 000000000000b764 R14: 00007ffd77953a3c R15: 00007ffd77953a40
[   47.713116][ T3694]  </TASK>
[   47.716124][ T3694] 
[   47.718437][ T3694] Allocated by task 3691:
[   47.722746][ T3694]  __kasan_slab_alloc+0xb2/0xe0
[   47.727586][ T3694]  kmem_cache_alloc+0x1a6/0x310
[   47.732423][ T3694]  __kernfs_new_node+0xdb/0x730
[   47.737274][ T3694]  kernfs_create_dir_ns+0x90/0x220
[   47.742981][ T3694]  sysfs_create_dir_ns+0x181/0x390
[   47.748078][ T3694]  kobject_add_internal+0x6dd/0xd10
[   47.753302][ T3694]  kobject_init_and_add+0x123/0x190
[   47.758493][ T3694]  sysfs_slab_add+0x140/0x270
[   47.763178][ T3694]  __kmem_cache_create+0x34/0x170
[   47.768190][ T3694]  kmem_cache_create_usercopy+0x1a6/0x340
[   47.773910][ T3694]  p9_client_create+0xbbe/0x1030
[   47.778866][ T3694]  v9fs_session_init+0x1e3/0x1990
[   47.783888][ T3694]  v9fs_mount+0xd2/0xcb0
[   47.788118][ T3694]  legacy_get_tree+0xea/0x180
[   47.792781][ T3694]  vfs_get_tree+0x88/0x270
[   47.797191][ T3694]  do_new_mount+0x289/0xad0
[   47.801699][ T3694]  __se_sys_mount+0x2e3/0x3d0
[   47.806362][ T3694]  do_syscall_64+0x2b/0x70
[   47.810781][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   47.816688][ T3694] 
[   47.819000][ T3694] Freed by task 3694:
[   47.822965][ T3694]  kasan_set_track+0x4c/0x70
[   47.827539][ T3694]  kasan_set_free_info+0x1f/0x40
[   47.832465][ T3694]  ____kasan_slab_free+0xd8/0x120
[   47.837476][ T3694]  slab_free_freelist_hook+0x12e/0x1a0
[   47.843018][ T3694]  kmem_cache_free+0x95/0x1d0
[   47.847686][ T3694]  kernfs_put+0x340/0x490
[   47.852004][ T3694]  __kernfs_remove+0xec0/0x1180
[   47.856844][ T3694]  kernfs_remove_by_name_ns+0x96/0xe0
[   47.862292][ T3694]  sysfs_slab_add+0x54/0x270
[   47.866867][ T3694]  __kmem_cache_create+0x34/0x170
[   47.871885][ T3694]  kmem_cache_create_usercopy+0x1a6/0x340
[   47.877594][ T3694]  p9_client_create+0xbbe/0x1030
[   47.882515][ T3694]  v9fs_session_init+0x1e3/0x1990
[   47.887536][ T3694]  v9fs_mount+0xd2/0xcb0
[   47.891765][ T3694]  legacy_get_tree+0xea/0x180
[   47.896425][ T3694]  vfs_get_tree+0x88/0x270
[   47.900828][ T3694]  do_new_mount+0x289/0xad0
[   47.905314][ T3694]  __se_sys_mount+0x2e3/0x3d0
[   47.909974][ T3694]  do_syscall_64+0x2b/0x70
[   47.914389][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   47.920273][ T3694] 
[   47.922579][ T3694] The buggy address belongs to the object at ffff88807491e3a0
[   47.922579][ T3694]  which belongs to the cache kernfs_node_cache of size 168
[   47.937137][ T3694] The buggy address is located 152 bytes inside of
[   47.937137][ T3694]  168-byte region [ffff88807491e3a0, ffff88807491e448)
[   47.950396][ T3694] 
[   47.952707][ T3694] The buggy address belongs to the physical page:
[   47.959275][ T3694] page:ffffea0001d24780 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7491e
[   47.969464][ T3694] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[   47.977006][ T3694] raw: 00fff00000000200 0000000000000000 dead000000000122 ffff888140007c80
[   47.985578][ T3694] raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
[   47.994147][ T3694] page dumped because: kasan: bad access detected
[   48.000540][ T3694] page_owner tracks the page as allocated
[   48.006236][ T3694] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3689, tgid 3689 (syz-executor230), ts 47198515837, free_ts 47179786313
[   48.024794][ T3694]  get_page_from_freelist+0x72b/0x7a0
[   48.030152][ T3694]  __alloc_pages+0x259/0x560
[   48.034726][ T3694]  alloc_slab_page+0x70/0xf0
[   48.039304][ T3694]  allocate_slab+0x5e/0x520
[   48.043790][ T3694]  ___slab_alloc+0x42e/0xce0
[   48.048363][ T3694]  kmem_cache_alloc+0x25d/0x310
[   48.053198][ T3694]  __kernfs_new_node+0xdb/0x730
[   48.058036][ T3694]  kernfs_new_node+0x95/0x160
[   48.062703][ T3694]  __kernfs_create_file+0x45/0x2e0
[   48.067825][ T3694]  sysfs_add_file_mode_ns+0x21d/0x330
[   48.073212][ T3694]  internal_create_group+0x55c/0xf50
[   48.078482][ T3694]  sysfs_slab_add+0x162/0x270
[   48.083152][ T3694]  __kmem_cache_create+0x34/0x170
[   48.088339][ T3694]  kmem_cache_create_usercopy+0x1a6/0x340
[   48.094136][ T3694]  p9_client_create+0xbbe/0x1030
[   48.099063][ T3694]  v9fs_session_init+0x1e3/0x1990
[   48.104071][ T3694] page last free stack trace:
[   48.108742][ T3694]  free_pcp_prepare+0x812/0x900
[   48.113584][ T3694]  free_unref_page+0x7d/0x630
[   48.118253][ T3694]  qlist_free_all+0x2b/0x70
[   48.122748][ T3694]  kasan_quarantine_reduce+0x169/0x180
[   48.128281][ T3694]  __kasan_slab_alloc+0x2f/0xe0
[   48.133116][ T3694]  kmem_cache_alloc+0x1a6/0x310
[   48.137953][ T3694]  getname_flags+0xb8/0x4e0
[   48.142443][ T3694]  do_sys_openat2+0xd2/0x500
[   48.147029][ T3694]  __x64_sys_openat+0x243/0x290
[   48.151861][ T3694]  do_syscall_64+0x2b/0x70
[   48.156354][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.162240][ T3694] 
[   48.164556][ T3694] Memory state around the buggy address:
[   48.170167][ T3694]  ffff88807491e300: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
[   48.178213][ T3694]  ffff88807491e380: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
[   48.186258][ T3694] >ffff88807491e400: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   48.194309][ T3694]                                         ^
[   48.200182][ T3694]  ffff88807491e480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   48.208231][ T3694]  ffff88807491e500: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa fb
[   48.216270][ T3694] ==================================================================
[   48.224922][ T3694] Kernel panic - not syncing: panic_on_warn set ...
[   48.231532][ T3694] CPU: 1 PID: 3694 Comm: syz-executor230 Not tainted 6.0.0-rc4-syzkaller-00302-gb96fbd602d35 #0
[   48.241944][ T3694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   48.251990][ T3694] Call Trace:
[   48.255260][ T3694]  <TASK>
[   48.258194][ T3694]  dump_stack_lvl+0x1e3/0x2cb
[   48.262865][ T3694]  ? io_alloc_page_table+0x110/0x110
[   48.268136][ T3694]  ? panic+0x76b/0x76b
[   48.272191][ T3694]  ? preempt_schedule_common+0xb7/0xe0
[   48.277636][ T3694]  ? preempt_schedule+0xd9/0xe0
[   48.282472][ T3694]  ? vscnprintf+0x59/0x80
[   48.286794][ T3694]  panic+0x316/0x76b
[   48.290676][ T3694]  ? fb_is_primary_device+0xcc/0xcc
[   48.295867][ T3694]  ? _raw_spin_unlock_irqrestore+0x128/0x130
[   48.301839][ T3694]  ? __kernfs_remove+0xf2d/0x1180
[   48.306855][ T3694]  end_report+0x91/0xa0
[   48.311008][ T3694]  kasan_report+0x108/0x130
[   48.315507][ T3694]  ? __kernfs_remove+0xf2d/0x1180
[   48.320533][ T3694]  __kernfs_remove+0xf2d/0x1180
[   48.325411][ T3694]  ? kernfs_iop_rename+0x7d0/0x7d0
[   48.330520][ T3694]  ? kernfs_find_ns+0x4d6/0x550
[   48.335360][ T3694]  kernfs_remove_by_name_ns+0x96/0xe0
[   48.341503][ T3694]  sysfs_slab_add+0x54/0x270
[   48.346169][ T3694]  __kmem_cache_create+0x34/0x170
[   48.351186][ T3694]  kmem_cache_create_usercopy+0x1a6/0x340
[   48.356896][ T3694]  p9_client_create+0xbbe/0x1030
[   48.361825][ T3694]  ? do_trace_9p_fid_put+0x20/0x20
[   48.366924][ T3694]  ? lockdep_softirqs_off+0x420/0x420
[   48.372295][ T3694]  ? __raw_spin_lock_init+0x41/0x100
[   48.377569][ T3694]  v9fs_session_init+0x1e3/0x1990
[   48.382599][ T3694]  ? v9fs_show_options+0x600/0x600
[   48.387789][ T3694]  ? kmem_cache_alloc_trace+0x97/0x310
[   48.393250][ T3694]  ? v9fs_mount+0xae/0xcb0
[   48.397657][ T3694]  v9fs_mount+0xd2/0xcb0
[   48.401886][ T3694]  ? vfs_parse_fs_param+0x294/0x410
[   48.407072][ T3694]  ? vfs_parse_fs_string+0x1dd/0x2a0
[   48.412344][ T3694]  ? xfs_fs_commit_blocks+0x8d0/0x8d0
[   48.417720][ T3694]  ? smack_sb_eat_lsm_opts+0x34d/0x990
[   48.423166][ T3694]  ? cap_capable+0x1b5/0x250
[   48.427764][ T3694]  legacy_get_tree+0xea/0x180
[   48.432464][ T3694]  ? xfs_fs_commit_blocks+0x8d0/0x8d0
[   48.437917][ T3694]  vfs_get_tree+0x88/0x270
[   48.442440][ T3694]  do_new_mount+0x289/0xad0
[   48.446947][ T3694]  ? do_move_mount_old+0x160/0x160
[   48.452051][ T3694]  ? user_path_at_empty+0x149/0x1a0
[   48.457255][ T3694]  __se_sys_mount+0x2e3/0x3d0
[   48.461919][ T3694]  ? __x64_sys_mount+0xc0/0xc0
[   48.466680][ T3694]  ? syscall_enter_from_user_mode+0x2e/0x1d0
[   48.472652][ T3694]  ? __x64_sys_mount+0x1c/0xc0
[   48.477415][ T3694]  do_syscall_64+0x2b/0x70
[   48.481833][ T3694]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.487718][ T3694] RIP: 0033:0x7fe8d6ce6fc9
[   48.492139][ T3694] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[   48.511730][ T3694] RSP: 002b:00007ffd77953a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   48.520129][ T3694] RAX: ffffffffffffffda RBX: 00007ffd77953a50 RCX: 00007fe8d6ce6fc9
[   48.528089][ T3694] RDX: 0000000020000240 RSI: 00000000200000c0 RDI: 0000000020000000
[   48.536139][ T3694] RBP: 0000000000000000 R08: 00000000200004c0 R09: 000000000000b764
[   48.544104][ T3694] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   48.552063][ T3694] R13: 000000000000b764 R14: 00007ffd77953a3c R15: 00007ffd77953a40
[   48.560145][ T3694]  </TASK>
[   48.563216][ T3694] Kernel Offset: disabled
[   48.567625][ T3694] Rebooting in 86400 seconds..