./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor521669065

<...>
Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts.
execve("./syz-executor521669065", ["./syz-executor521669065"], 0x7ffed7bcb9d0 /* 10 vars */) = 0
brk(NULL)                               = 0x5555558f6000
brk(0x5555558f6c40)                     = 0x5555558f6c40
arch_prctl(ARCH_SET_FS, 0x5555558f6300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x5555558f65d0)         = 371
set_robust_list(0x5555558f65e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7f415ac81280, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f415ac81950}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7f415ac81320, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f415ac81950}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor521669065", 4096) = 27
brk(0x555555917c40)                     = 0x555555917c40
brk(0x555555918000)                     = 0x555555918000
mprotect(0x7f415ad43000, 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
getpid()                                = 371
mkdir("./syzkaller.bqbf0g", 0700)       = 0
chmod("./syzkaller.bqbf0g", 0777)       = 0
chdir("./syzkaller.bqbf0g")             = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558f65d0) = 372
./strace-static-x86_64: Process 372 attached
[pid   372] set_robust_list(0x5555558f65e0, 24) = 0
[pid   372] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid   372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid   372] setsid()                    = 1
[pid   372] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid   372] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid   372] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid   372] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid   372] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid   372] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid   372] unshare(CLONE_NEWNS)        = 0
[pid   372] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid   372] unshare(CLONE_NEWIPC)       = -1 EINVAL (Invalid argument)
[pid   372] unshare(CLONE_NEWCGROUP)    = 0
[pid   372] unshare(CLONE_NEWUTS)       = 0
[pid   372] unshare(CLONE_SYSVSEM)      = 0
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
[pid   372] getpid()                    = 1
[pid   372] 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   372] 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   372] unshare(CLONE_NEWNET)       = 0
[pid   372] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid   372] write(3, "0 65535", 7)      = 7
[pid   372] close(3)                    = 0
[pid   372] mkdir("/dev/binderfs", 0777) = 0
[pid   372] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid   372] futex(0x7f415ad497ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f415ac50000
[pid   372] mprotect(0x7f415ac51000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   372] clone(child_stack=0x7f415ac703f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[2], tls=0x7f415ac70700, child_tidptr=0x7f415ac709d0) = 2
[pid   372] futex(0x7f415ad497a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] futex(0x7f415ad497ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 373 attached
 <unfinished ...>
[pid   373] set_robust_list(0x7f415ac709e0, 24) = 0
[pid   373] memfd_create("syzkaller", 0) = 3
[pid   373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4152850000
[   20.139564][   T23] audit: type=1400 audit(1678688662.190:73): avc:  denied  { execmem } for  pid=371 comm="syz-executor521" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[   20.147662][   T23] audit: type=1400 audit(1678688662.200:74): avc:  denied  { mounton } for  pid=372 comm="syz-executor521" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1
[   20.157489][   T23] audit: type=1400 audit(1678688662.200:75): avc:  denied  { mount } for  pid=372 comm="syz-executor521" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1
[pid   373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576
[pid   373] munmap(0x7f4152850000, 1048576) = 0
[pid   373] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid   373] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid   373] close(3)                    = 0
[pid   373] mkdir("./file0", 0777)      = 0
[   20.176699][   T23] audit: type=1400 audit(1678688662.210:76): avc:  denied  { mounton } for  pid=372 comm="syz-executor521" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1
[   20.198581][   T23] audit: type=1400 audit(1678688662.230:77): avc:  denied  { mounton } for  pid=372 comm="syz-executor521" path="/dev/binderfs" dev="devtmpfs" ino=363 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1
[pid   373] mount("/dev/loop0", "./file0", "ext4", MS_SYNCHRONOUS|MS_DIRSYNC|MS_NOATIME|MS_LAZYTIME, ",errors=continue") = 0
[pid   373] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid   373] chdir("./file0")            = 0
[pid   373] ioctl(4, LOOP_CLR_FD)       = 0
[pid   373] close(4)                    = 0
[pid   373] futex(0x7f415ad497ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   373] futex(0x7f415ad497a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   372] futex(0x7f415ad497a8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid   372] futex(0x7f415ad497ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] <... futex resumed>)        = 0
[pid   373] openat(AT_FDCWD, "memory.current", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4
[pid   373] futex(0x7f415ad497ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   372] futex(0x7f415ad497a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] futex(0x7f415ad497ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] <... futex resumed>)        = 1
[pid   373] pwritev(4, [{iov_base="\xef", iov_len=1}], 1, 0) = 1
[pid   373] futex(0x7f415ad497ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   372] futex(0x7f415ad497a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] futex(0x7f415ad497ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] <... futex resumed>)        = 1
[pid   373] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0) = 0x20000000
[pid   373] futex(0x7f415ad497ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   372] <... futex resumed>)        = 0
[pid   372] futex(0x7f415ad497a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] futex(0x7f415ad497bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid   372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f415292f000
[pid   372] mprotect(0x7f4152930000, 131072, PROT_READ|PROT_WRITE) = 0
[pid   372] clone(child_stack=0x7f415294f3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3], tls=0x7f415294f700, child_tidptr=0x7f415294f9d0) = 3
[pid   372] futex(0x7f415ad497b8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[   20.221729][   T23] audit: type=1400 audit(1678688662.230:78): avc:  denied  { mount } for  pid=372 comm="syz-executor521" name="/" dev="binder" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1
[   20.223443][  T373] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue
[   20.244449][   T23] audit: type=1400 audit(1678688662.250:79): avc:  denied  { read write } for  pid=372 comm="syz-executor521" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[pid   372] futex(0x7f415ad497bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid   373] <... futex resumed>)        = 1
./strace-static-x86_64: Process 378 attached
[pid   378] set_robust_list(0x7f415294f9e0, 24) = 0
[pid   373] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000040} ---
[pid   378] sendmsg(4, 0x20000180, MSG_DONTWAIT|MSG_EOR) = -1 ENOTSOCK (Socket operation on non-socket)
[pid   373] sendfile(-1, -1, 0x20000040, 0 <unfinished ...>
[pid   378] futex(0x7f415ad497bc, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   373] <... sendfile resumed>)     = -1 EBADF (Bad file descriptor)
[pid   372] <... futex resumed>)        = 0
[pid   373] futex(0x7f415ad497ac, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid   378] <... futex resumed>)        = 1
[pid   373] <... futex resumed>)        = 0
[pid   378] futex(0x7f415ad497b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   373] futex(0x7f415ad497a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid   372] exit_group(1)               = ?
[pid   378] <... futex resumed>)        = ?
[pid   378] +++ exited with 1 +++
[pid   373] <... futex resumed>)        = ?
[   20.275627][  T373] EXT4-fs error (device loop0): ext4_mb_generate_buddy:805: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters
[   20.277312][   T23] audit: type=1400 audit(1678688662.250:80): avc:  denied  { open } for  pid=372 comm="syz-executor521" path="/dev/loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   20.316832][   T23] audit: type=1400 audit(1678688662.250:81): avc:  denied  { ioctl } for  pid=372 comm="syz-executor521" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1
[   20.317447][    T9] ------------[ cut here ]------------
[   20.342655][   T23] audit: type=1400 audit(1678688662.250:82): avc:  denied  { mounton } for  pid=372 comm="syz-executor521" path="/root/syzkaller.bqbf0g/file0" dev="sda1" ino=1139 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[   20.348224][    T9] kernel BUG at fs/ext4/inode.c:2767!
[   20.377706][    T9] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   20.383781][    T9] CPU: 0 PID: 9 Comm: kworker/u4:1 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0
[   20.393576][    T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
[   20.403621][    T9] Workqueue: writeback wb_workfn (flush-7:0)
[   20.409590][    T9] RIP: 0010:ext4_writepages+0x36f6/0x3710
[   20.415312][    T9] Code: c6 31 ff e8 8c 07 90 ff 84 db 75 2c e8 73 04 90 ff 48 bb 00 00 00 00 00 fc ff df 4c 8b 64 24 40 e9 28 f7 ff ff e8 5a 04 90 ff <0f> 0b e8 53 04 90 ff e8 ed 64 23 ff eb a0 e8 47 04 90 ff e8 e1 64
[   20.434907][    T9] RSP: 0018:ffffc900000970c0 EFLAGS: 00010293
[   20.440965][    T9] RAX: ffffffff81dd1d56 RBX: 0000008000000000 RCX: ffff8881002393c0
[   20.448935][    T9] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
[   20.456916][    T9] RBP: ffffc900000974b0 R08: ffffffff81dced3a R09: ffffed1021d693bc
[   20.464872][    T9] R10: ffffed1021d693bc R11: 1ffff11021d693bb R12: ffff8881019df000
[   20.472832][    T9] R13: ffffc90000097380 R14: 0000008410000000 R15: ffffc90000097830
[   20.480784][    T9] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   20.489699][    T9] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.496274][    T9] CR2: 00007f415ad15448 CR3: 000000010c5ab000 CR4: 00000000003506b0
[   20.504236][    T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.512219][    T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.520177][    T9] Call Trace:
[   20.523467][    T9]  ? unwind_next_frame+0x3b0/0x6b0
[   20.528573][    T9]  ? stack_trace_save+0x1f0/0x1f0
[   20.533605][    T9]  ? ext4_readpage+0x220/0x220
[   20.538369][    T9]  ? arch_stack_walk+0x112/0x140
[   20.543296][    T9]  ? ret_from_fork+0x1f/0x30
[   20.547874][    T9]  ? stack_trace_save+0x12d/0x1f0
[   20.552974][    T9]  ? debug_smp_processor_id+0x17/0x20
[   20.558355][    T9]  ? ext4_readpage+0x220/0x220
[   20.563107][    T9]  do_writepages+0x13a/0x280
[   20.567684][    T9]  ? __writepage+0x130/0x130
[   20.572259][    T9]  ? __kasan_check_write+0x14/0x20
[   20.577355][    T9]  ? _raw_spin_lock+0xa3/0x1b0
[   20.582108][    T9]  ? _raw_spin_trylock_bh+0x1d0/0x1d0
[   20.587486][    T9]  ? __kasan_check_write+0x14/0x20
[   20.592604][    T9]  __writeback_single_inode+0xb8/0x6e0
[   20.598049][    T9]  writeback_sb_inodes+0x999/0x1700
[   20.603238][    T9]  ? __kasan_check_write+0x14/0x20
[   20.608339][    T9]  ? move_expired_inodes+0x804/0x860
[   20.613626][    T9]  ? queue_io+0x500/0x500
[   20.617955][    T9]  ? writeback_sb_inodes+0x1700/0x1700
[   20.623404][    T9]  ? queue_io+0x3c7/0x500
[   20.627814][    T9]  ? worker_thread+0xb27/0x1550
[   20.632650][    T9]  ? kthread+0x349/0x3d0
[   20.636881][    T9]  ? ret_from_fork+0x1f/0x30
[   20.641466][    T9]  wb_writeback+0x42f/0xc20
[   20.645965][    T9]  ? wb_io_lists_depopulated+0x180/0x180
[   20.651594][    T9]  ? widen_string+0x41/0x3a0
[   20.656176][    T9]  ? __kasan_check_write+0x14/0x20
[   20.661311][    T9]  wb_do_writeback+0x222/0xbd0
[   20.666060][    T9]  ? wb_workfn+0x3f0/0x3f0
[   20.670466][    T9]  ? compat_start_thread+0x80/0x80
[   20.675571][    T9]  ? set_worker_desc+0x158/0x1c0
[   20.680492][    T9]  ? work_busy+0x250/0x250
[   20.684893][    T9]  ? finish_task_switch+0x130/0x580
[   20.690235][    T9]  ? __switch_to_asm+0x34/0x60
[   20.695002][    T9]  ? kthread_data+0x52/0xc0
[   20.699503][    T9]  wb_workfn+0xf8/0x3f0
[   20.703659][    T9]  process_one_work+0x726/0xc10
[   20.708666][    T9]  worker_thread+0xb27/0x1550
[   20.713366][    T9]  kthread+0x349/0x3d0
[   20.717446][    T9]  ? worker_clr_flags+0x180/0x180
[   20.722463][    T9]  ? kthread_blkcg+0xd0/0xd0
[   20.727058][    T9]  ret_from_fork+0x1f/0x30
[   20.731466][    T9] Modules linked in:
[   20.735541][    T9] ---[ end trace 4ddd76932a365c50 ]---
[   20.741111][    T9] RIP: 0010:ext4_writepages+0x36f6/0x3710
[   20.746825][    T9] Code: c6 31 ff e8 8c 07 90 ff 84 db 75 2c e8 73 04 90 ff 48 bb 00 00 00 00 00 fc ff df 4c 8b 64 24 40 e9 28 f7 ff ff e8 5a 04 90 ff <0f> 0b e8 53 04 90 ff e8 ed 64 23 ff eb a0 e8 47 04 90 ff e8 e1 64
[   20.766614][    T9] RSP: 0018:ffffc900000970c0 EFLAGS: 00010293
[   20.772795][    T9] RAX: ffffffff81dd1d56 RBX: 0000008000000000 RCX: ffff8881002393c0
[   20.781192][    T9] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
[   20.789153][    T9] RBP: ffffc900000974b0 R08: ffffffff81dced3a R09: ffffed1021d693bc
[   20.797238][    T9] R10: ffffed1021d693bc R11: 1ffff11021d693bb R12: ffff8881019df000
[   20.806003][    T9] R13: ffffc90000097380 R14: 0000008410000000 R15: ffffc90000097830
[   20.814029][    T9] FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[   20.823025][    T9] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.829604][    T9] CR2: 00007f415ad15448 CR3: 000000010c3f6000 CR4: 00000000003506b0
[   20.837626][    T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   20.845690][    T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   20.853959][    T9] Kernel panic - not syncing: Fatal exception
[   20.860245][    T9] Kernel Offset: disabled
[   20.864564][    T9] Rebooting in 86400 seconds..