./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor813187936

<...>
Warning: Permanently added '10.128.0.22' (ED25519) to the list of known hosts.
execve("./syz-executor813187936", ["./syz-executor813187936"], 0x7ffcd91f5be0 /* 10 vars */) = 0
brk(NULL)                               = 0x555573d14000
brk(0x555573d14d00)                     = 0x555573d14d00
arch_prctl(ARCH_SET_FS, 0x555573d14380) = 0
set_tid_address(0x555573d14650)         = 5231
set_robust_list(0x555573d14660, 24)     = 0
rseq(0x555573d14ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor813187936", 4096) = 27
getrandom("\xfb\x96\xe0\x08\x82\x26\x6a\x9d", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555573d14d00
brk(0x555573d35d00)                     = 0x555573d35d00
brk(0x555573d36000)                     = 0x555573d36000
mprotect(0x7f355e366000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5232 attached
 <unfinished ...>
[pid  5232] set_robust_list(0x555573d14660, 24 <unfinished ...>
[pid  5231] <... clone resumed>, child_tidptr=0x555573d14650) = 5232
[pid  5232] <... set_robust_list resumed>) = 0
[pid  5232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5232] setsid()                    = 1
[pid  5232] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5232] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5232] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5232] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5232] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5232] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5232] unshare(CLONE_NEWNS)        = 0
[pid  5232] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5232] unshare(CLONE_NEWIPC)       = 0
[pid  5232] unshare(CLONE_NEWCGROUP)    = 0
[pid  5232] unshare(CLONE_NEWUTS)       = 0
[pid  5232] unshare(CLONE_SYSVSEM)      = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "16777216", 8)     = 8
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "536870912", 9)    = 9
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "1024", 4)         = 4
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "8192", 4)         = 4
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "1024", 4)         = 4
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "1024", 4)         = 4
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5232] close(3)                    = 0
[pid  5232] getpid()                    = 1
[pid  5232] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5232] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  5232] unshare(CLONE_NEWNET)       = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "0 65535", 7)      = 7
[pid  5232] close(3)                    = 0
[pid  5232] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid  5232] write(3, "100000", 6)       = 6
[pid  5232] close(3)                    = 0
[pid  5232] mkdir("./syz-tmp", 0777)    = 0
[pid  5232] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid  5232] mkdir("./syz-tmp/newroot", 0777) = 0
[pid  5232] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid  5232] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5232] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid  5232] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid  5232] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid  5232] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5232] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5232] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid  5232] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5232] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5232] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5232] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5232] mkdir("./syz-tmp/pivot", 0777) = 0
[pid  5232] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid  5232] chdir("/")                  = 0
[pid  5232] umount2("./pivot", MNT_DETACH) = 0
[pid  5232] chroot("./newroot")         = 0
[pid  5232] chdir("/")                  = 0
[pid  5232] mkdir("/dev/binderfs", 0777) = 0
[pid  5232] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5232] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5232] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5232] write(1, "executing program\n", 18executing program
) = 18
[pid  5232] mmap(0x20000000, 11755520, PROT_WRITE|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0xb635773f04ebbee0, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE, -1, 0) = 0x20000000
[pid  5232] remap_file_pages(0x202ec000, 2097152, PROT_NONE, 0, MAP_FILE) = 0
[pid  5232] openat(AT_FDCWD, 0x200000c0, O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[pid  5232] mmap(0x20000000, 40960, PROT_READ|PROT_WRITE|PROT_EXEC|PROT_GROWSDOWN, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_32BIT|MAP_GROWSDOWN|MAP_LOCKED, -1, 0) = 0x20000000
[pid  5232] mremap(0x20001000, 12288, 16384, MREMAP_MAYMOVE|MREMAP_FIXED, 0x20005000) = 0x20005000
[   70.808317][ T5232] mmap: syz-executor813 (5232) uses deprecated remap_file_pages() syscall. See Documentation/mm/remap_file_pages.rst.
[   70.832592][ T5232] 
[   70.834967][ T5232] ======================================================
[   70.841980][ T5232] WARNING: possible circular locking dependency detected
[   70.848998][ T5232] 6.12.0-rc1-syzkaller-00031-ge32cde8d2bd7 #0 Not tainted
[   70.856098][ T5232] ------------------------------------------------------
[   70.863112][ T5232] syz-executor813/5232 is trying to acquire lock:
[   70.869518][ T5232] ffff88807bfa0198 (&mm->mmap_lock){++++}-{3:3}, at: upgrade_mmap_lock_carefully+0xb6/0x160
[   70.879656][ T5232] 
[   70.879656][ T5232] but task is already holding lock:
[   70.887022][ T5232] ffff888022786b48 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: shmem_file_write_iter+0x80/0x120
[   70.897761][ T5232] 
[   70.897761][ T5232] which lock already depends on the new lock.
[   70.897761][ T5232] 
[   70.908180][ T5232] 
[   70.908180][ T5232] the existing dependency chain (in reverse order) is:
[   70.917488][ T5232] 
[   70.917488][ T5232] -> #1 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}:
[   70.926222][ T5232]        lock_acquire+0x1ed/0x550
[   70.931261][ T5232]        down_write+0x99/0x220
[   70.936037][ T5232]        process_measurement+0x439/0x1fb0
[   70.941806][ T5232]        ima_file_mmap+0x13d/0x2b0
[   70.946935][ T5232]        security_mmap_file+0x7e7/0xa40
[   70.952502][ T5232]        __se_sys_remap_file_pages+0x6e6/0xa50
[   70.958662][ T5232]        do_syscall_64+0xf3/0x230
[   70.963699][ T5232]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   70.970133][ T5232] 
[   70.970133][ T5232] -> #0 (&mm->mmap_lock){++++}-{3:3}:
[   70.977815][ T5232]        validate_chain+0x18ef/0x5920
[   70.983194][ T5232]        __lock_acquire+0x1384/0x2050
[   70.988586][ T5232]        lock_acquire+0x1ed/0x550
[   70.993628][ T5232]        down_write_killable+0xab/0x260
[   70.999181][ T5232]        upgrade_mmap_lock_carefully+0xb6/0x160
[   71.005626][ T5232]        lock_mm_and_find_vma+0x107/0x2f0
[   71.011365][ T5232]        exc_page_fault+0x1bf/0x8c0
[   71.016594][ T5232]        asm_exc_page_fault+0x26/0x30
[   71.021983][ T5232]        fault_in_readable+0x165/0x2b0
[   71.027453][ T5232]        fault_in_iov_iter_readable+0x229/0x280
[   71.033719][ T5232]        generic_perform_write+0x259/0x6d0
[   71.039529][ T5232]        shmem_file_write_iter+0xf9/0x120
[   71.045253][ T5232]        vfs_write+0xa6d/0xc90
[   71.050107][ T5232]        ksys_write+0x183/0x2b0
[   71.055129][ T5232]        do_syscall_64+0xf3/0x230
[   71.060362][ T5232]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   71.066871][ T5232] 
[   71.066871][ T5232] other info that might help us debug this:
[   71.066871][ T5232] 
[   71.077108][ T5232]  Possible unsafe locking scenario:
[   71.077108][ T5232] 
[   71.084566][ T5232]        CPU0                    CPU1
[   71.090042][ T5232]        ----                    ----
[   71.095494][ T5232]   lock(&sb->s_type->i_mutex_key#12);
[   71.100983][ T5232]                                lock(&mm->mmap_lock);
[   71.108279][ T5232]                                lock(&sb->s_type->i_mutex_key#12);
[   71.116291][ T5232]   lock(&mm->mmap_lock);
[   71.120622][ T5232] 
[   71.120622][ T5232]  *** DEADLOCK ***
[   71.120622][ T5232] 
[   71.128760][ T5232] 2 locks held by syz-executor813/5232:
[   71.134381][ T5232]  #0: ffff88807b202420 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x224/0xc90
[   71.143289][ T5232]  #1: ffff888022786b48 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: shmem_file_write_iter+0x80/0x120
[   71.154466][ T5232] 
[   71.154466][ T5232] stack backtrace:
[   71.160364][ T5232] CPU: 0 UID: 0 PID: 5232 Comm: syz-executor813 Not tainted 6.12.0-rc1-syzkaller-00031-ge32cde8d2bd7 #0
[   71.171488][ T5232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   71.181727][ T5232] Call Trace:
[   71.185006][ T5232]  <TASK>
[   71.187938][ T5232]  dump_stack_lvl+0x241/0x360
[   71.192631][ T5232]  ? __pfx_dump_stack_lvl+0x10/0x10
[   71.197828][ T5232]  ? __pfx__printk+0x10/0x10
[   71.202446][ T5232]  print_circular_bug+0x13a/0x1b0
[   71.207474][ T5232]  check_noncircular+0x36a/0x4a0
[   71.212412][ T5232]  ? __pfx_validate_chain+0x10/0x10
[   71.217698][ T5232]  ? __pfx_check_noncircular+0x10/0x10
[   71.223158][ T5232]  ? lockdep_lock+0x123/0x2b0
[   71.227839][ T5232]  ? validate_chain+0x11e/0x5920
[   71.232796][ T5232]  validate_chain+0x18ef/0x5920
[   71.237647][ T5232]  ? __pfx_validate_chain+0x10/0x10
[   71.242849][ T5232]  ? validate_chain+0x11e/0x5920
[   71.247797][ T5232]  ? __pfx_validate_chain+0x10/0x10
[   71.253098][ T5232]  ? __pfx_validate_chain+0x10/0x10
[   71.258317][ T5232]  ? mark_lock+0x9a/0x360
[   71.262663][ T5232]  ? __lock_acquire+0x1384/0x2050
[   71.267787][ T5232]  ? mark_lock+0x9a/0x360
[   71.272123][ T5232]  __lock_acquire+0x1384/0x2050
[   71.277000][ T5232]  lock_acquire+0x1ed/0x550
[   71.281519][ T5232]  ? upgrade_mmap_lock_carefully+0xb6/0x160
[   71.287420][ T5232]  ? __pfx_lock_acquire+0x10/0x10
[   71.292449][ T5232]  ? __pfx___might_resched+0x10/0x10
[   71.297786][ T5232]  ? cmp_ex_search+0x74/0xa0
[   71.302381][ T5232]  ? bsearch+0x98/0xc0
[   71.306456][ T5232]  down_write_killable+0xab/0x260
[   71.311485][ T5232]  ? upgrade_mmap_lock_carefully+0xb6/0x160
[   71.317477][ T5232]  ? upgrade_mmap_lock_carefully+0xb6/0x160
[   71.323396][ T5232]  ? __pfx_down_write_killable+0x10/0x10
[   71.329032][ T5232]  ? fault_in_readable+0x165/0x2b0
[   71.334260][ T5232]  ? find_vma+0xf9/0x170
[   71.338529][ T5232]  ? __pfx_find_vma+0x10/0x10
[   71.343312][ T5232]  ? fault_in_readable+0x165/0x2b0
[   71.348462][ T5232]  upgrade_mmap_lock_carefully+0xb6/0x160
[   71.354334][ T5232]  lock_mm_and_find_vma+0x107/0x2f0
[   71.359634][ T5232]  exc_page_fault+0x1bf/0x8c0
[   71.364410][ T5232]  ? reacquire_held_locks+0x3eb/0x690
[   71.369813][ T5232]  asm_exc_page_fault+0x26/0x30
[   71.374717][ T5232] RIP: 0010:fault_in_readable+0x165/0x2b0
[   71.380837][ T5232] Code: b3 ff 4c 8d b3 ff 0f 00 00 48 89 d8 4d 01 e6 49 81 e6 00 f0 ff ff 49 39 c6 72 6b e8 65 ca b3 ff 4c 39 f3 74 6e 4c 89 64 24 10 <44> 8a 23 43 0f b6 04 2f 84 c0 75 18 44 88 64 24 40 48 81 c3 00 10
[   71.400467][ T5232] RSP: 0018:ffffc90003c3fa40 EFLAGS: 00050287
[   71.406536][ T5232] RAX: ffffffff81e1114b RBX: 0000000020001000 RCX: ffff88801cf78000
[   71.414526][ T5232] RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000
[   71.422529][ T5232] RBP: ffffc90003c3faf8 R08: ffffffff81e110e8 R09: ffffffff84b94759
[   71.430499][ T5232] R10: 0000000000000002 R11: ffff88801cf78000 R12: 000000000000fecc
[   71.438726][ T5232] R13: dffffc0000000000 R14: 0000000020010000 R15: 1ffff92000787f50
[   71.446714][ T5232]  ? fault_in_iov_iter_readable+0x49/0x280
[   71.452527][ T5232]  ? fault_in_readable+0xf8/0x2b0
[   71.457557][ T5232]  ? fault_in_readable+0x15b/0x2b0
[   71.462693][ T5232]  ? __pfx_fault_in_readable+0x10/0x10
[   71.468181][ T5232]  ? inode_to_bdi+0x69/0xf0
[   71.472694][ T5232]  fault_in_iov_iter_readable+0x229/0x280
[   71.478417][ T5232]  generic_perform_write+0x259/0x6d0
[   71.483733][ T5232]  ? __pfx_generic_perform_write+0x10/0x10
[   71.489538][ T5232]  ? mnt_put_write_access_file+0xbf/0x100
[   71.495269][ T5232]  ? file_update_time+0x3be/0x430
[   71.500316][ T5232]  shmem_file_write_iter+0xf9/0x120
[   71.505523][ T5232]  vfs_write+0xa6d/0xc90
[   71.509760][ T5232]  ? __pfx_shmem_file_write_iter+0x10/0x10
[   71.515611][ T5232]  ? __pfx_vfs_write+0x10/0x10
[   71.520376][ T5232]  ? _raw_spin_unlock_irq+0x2e/0x50
[   71.525928][ T5232]  ? fdget_pos+0x265/0x320
[   71.530350][ T5232]  ksys_write+0x183/0x2b0
[   71.534690][ T5232]  ? __pfx_ksys_write+0x10/0x10
[   71.539536][ T5232]  ? do_syscall_64+0x100/0x230
[   71.544299][ T5232]  do_syscall_64+0xf3/0x230
[   71.548817][ T5232]  ? clear_bhb_loop+0x35/0x90
[   71.553491][ T5232]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   71.559477][ T5232] RIP: 0033:0x7f355e2f2a19
[   71.564164][ T5232] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
[   71.584218][ T5232] RSP: 002b:00007ffdd6291a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   71.593257][ T5232] RAX: ffffffffffffffda RBX: 00007f355e33c11f RCX: 00007f355e2f2a19
[   71.601863][ T5232] RDX: 000000000000fecc RSI: 0000000020000100 RDI: 0000000000000003
[pid  5232] write(3, "\x23\x21\x20\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 65228) = 65228
[pid  5232] exit_group(1)               = ?
[pid  5232] +++ exited with 1 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5232, si_uid=0, si_status=1, si_utime=0, si_stime=28 /* 0.28 s */} ---
exit_group(0)                           = ?
[   71.610111][ T5232] RBP: 00007f355e33c0fd R08: 0000000000000000 R09: 0000000000000000
[   71.618183][ T5232] R10: 0000000020005000 R11: 0000000000000246 R12: 00007f355e34113c
[   71.626176][ T5232] R13: 00007f355e33c082 R14: 0000000000000001 R15: 0000000000000001
[   71.634256][ T5232]  </TASK>
+++ exited with 0 +++