INFO: task kworker/0:2:781 blocked for more than 143 seconds.
Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:24208 pid:781 tgid:781 ppid:2 flags:0x00004000
Workqueue: xfs-sync/loop3 xfs_flush_inodes_worker
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:192
sync_inodes_sb+0x293/0xb20 fs/fs-writeback.c:2758
xfs_flush_inodes_worker+0x61/0x80 fs/xfs/xfs_super.c:616
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task syz-executor.3:27205 blocked for more than 143 seconds.
Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:26000 pid:27205 tgid:27205 ppid:16274 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
coredump_task_exit kernel/exit.c:439 [inline]
do_exit+0x576/0x2740 kernel/exit.c:825
do_group_exit+0x206/0x2c0 kernel/exit.c:1020
get_signal+0x1769/0x1840 kernel/signal.c:2893
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0xc8/0x370 kernel/entry/common.c:212
do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f532447cda9
RSP: 002b:00007ffc0a136808 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00007f532447cda9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f53245abf88
RBP: 0000000000000048 R08: 00007f53245abf8c R09: 00007f53245abf8c
R10: 00007f532400c0e8 R11: 0000000000000246 R12: 00007f53245abf80
R13: 0000000000000113 R14: 0000000000000000 R15: 00007f53245abf80
INFO: task syz-executor.3:27206 blocked for more than 144 seconds.
Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:22800 pid:27206 tgid:27205 ppid:16274 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x300 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
__flush_work+0x950/0xad0 kernel/workqueue.c:3410
xfs_file_buffered_write+0x35b/0xaa0 fs/xfs/xfs_file.c:808
__kernel_write_iter+0x306/0x720 fs/read_write.c:523
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x46c/0x910 fs/coredump.c:915
elf_core_dump+0x3c97/0x4540 fs/binfmt_elf.c:2077
do_coredump+0x1ba2/0x2b50 fs/coredump.c:764
get_signal+0x146a/0x1840 kernel/signal.c:2879
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0xc8/0x370 kernel/entry/common.c:212
do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f532447cda9
RSP: 002b:00007f53251b30c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffe5 RBX: 00007f53245abf80 RCX: 00007f532447cda9
RDX: 0000000000000000 RSI: 000000001f7982fb RDI: 0000000000000004
RBP: 00007f53244c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f53245abf80 R15: 00007ffc0a136728
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 27490 Comm: udevd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:dquot_alloc_inode+0x48/0xb70 fs/quota/dquot.c:1747
Code: ff 65 48 8b 04 25 28 00 00 00 48 89 84 24 e0 00 00 00 49 bd 00 00 00 00 00 fc ff df 4c 8d 74 24 60 48 c7 44 24 40 b3 8a b5 41 <48> c7 44 24 48 98 fc 14 8d 48 c7 44 24 50 b0 c8 1d 82 48 8d 5c 24
RSP: 0018:ffffc90012827720 EFLAGS: 00000282
RAX: 1bb6798352603500 RBX: 0000000000000000 RCX: ffff88802a731dc0
RDX: ffff88802a731dc0 RSI: 0000000000000000 RDI: ffff88801dc19bc0
RBP: ffffc90012827850 R08: ffffffff81ccb31e R09: 0000000000000000
R10: ffffc900128277a0 R11: fffff52002504ef7 R12: ffff88801dc19bc0
R13: dffffc0000000000 R14: ffffc90012827780 R15: ffff88801dc19bc0
FS: 00007f1c8770dc80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffef0bedfec CR3: 000000002dc4a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
shmem_get_inode+0xa62/0xd30 mm/shmem.c:2556
shmem_mknod+0x5f/0x1c0 mm/shmem.c:3242
lookup_open fs/namei.c:3496 [inline]
open_last_lookups fs/namei.c:3565 [inline]
path_openat+0x13fe/0x31e0 fs/namei.c:3795
do_filp_open+0x234/0x490 fs/namei.c:3825
do_sys_openat2+0x13e/0x1d0 fs/open.c:1404
do_sys_open fs/open.c:1419 [inline]
__do_sys_openat fs/open.c:1435 [inline]
__se_sys_openat fs/open.c:1430 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1430
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1c873169a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffef0bf3e50 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1c873169a4
RDX: 0000000000080241 RSI: 00007ffef0bf4398 RDI: 00000000ffffff9c
RBP: 00007ffef0bf4398 R08: 0000000000000004 R09: 0000000000000001
R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000080241
R13: 000055dc045ca72e R14: 0000000000000001 R15: 000055dc045e5160