INFO: task kworker/0:1:27662 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/0:1 state:D stack:25920 pid:27662 tgid:27662 ppid:2 flags:0x00004000
Workqueue: xfs-sync/loop3 xfs_flush_inodes_worker
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
wb_wait_for_completion+0x1ae/0x270 fs/fs-writeback.c:192
sync_inodes_sb+0x1b7/0xa40 fs/fs-writeback.c:2758
xfs_flush_inodes_worker+0x67/0x80 fs/xfs/xfs_super.c:616
process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
INFO: task syz-executor.3:24184 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:24144 pid:24184 tgid:24184 ppid:5080 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
schedule_timeout+0x257/0x290 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common+0x3e0/0x5f0 kernel/sched/completion.c:116
__flush_work+0x523/0xa10 kernel/workqueue.c:3410
xfs_flush_inodes+0x76/0x90 fs/xfs/xfs_super.c:639
xfs_file_buffered_write+0x293/0xa20 fs/xfs/xfs_file.c:808
xfs_file_write_iter+0x544/0x740 fs/xfs/xfs_file.c:861
__kernel_write_iter+0x261/0x7b0 fs/read_write.c:523
dump_emit_page fs/coredump.c:888 [inline]
dump_user_range+0x299/0x790 fs/coredump.c:915
elf_core_dump+0x2706/0x3900 fs/binfmt_elf.c:2077
do_coredump+0x2c3b/0x3f70 fs/coredump.c:764
get_signal+0x242f/0x2790 kernel/signal.c:2879
arch_do_signal_or_restart+0x90/0x7f0 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]
irqentry_exit_to_user_mode+0x145/0x290 kernel/entry/common.c:225
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7fef7987cdb1
RSP: 002b:0000000000000030 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fef799abf80 RCX: 00007fef7987cda9
RDX: 0000000000000000 RSI: 0000000000000030 RDI: 0000000000000000
RBP: 00007fef798c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fef799abf80 R15: 00007ffe30298988
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+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 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: 5417 Comm: syz-executor.1 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:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline]
RIP: 0010:__orc_find+0xae/0x130 arch/x86/kernel/unwind_orc.c:102
Code: c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 4c 8d 3c 83 4c 89 fa 48 c1 ea 03 42 0f b6 0c 32 4c 89 fa 83 e2 07 83 c2 03 38 ca 7c 04 <84> c9 75 6f 49 63 17 4c 89 e7 4d 8d 2c 17 4c 89 ee e8 bc c9 4c 00
RSP: 0018:ffffc90006cdf798 EFLAGS: 00000206
RAX: 0000000000000001 RBX: ffffffff8f51da8c RCX: 0000000000000000
RDX: 0000000000000003 RSI: ffffffff813a2a5a RDI: 0000000000000006
RBP: ffffffff8f51da94 R08: 0000000000000006 R09: ffffffff81ddd6b4
R10: ffffffff81ddd6af R11: 0000000000000001 R12: ffffffff81ddd6b4
R13: ffffffff81ddd6af R14: dffffc0000000000 R15: ffffffff8f51da90
FS: 0000555556eaa480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1c5ef00f61 CR3: 00000000274d9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x329/0x2390 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:129
__reset_page_owner+0x51/0x2e0 mm/page_owner.c:150
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1140 [inline]
free_unref_page_prepare+0x51f/0xb10 mm/page_alloc.c:2346
free_unref_page+0x33/0x3c0 mm/page_alloc.c:2486
qlink_free mm/kasan/quarantine.c:160 [inline]
qlist_free_all+0x58/0x150 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:324
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3813 [inline]
slab_alloc_node mm/slub.c:3860 [inline]
kmem_cache_alloc_lru+0x142/0x6f0 mm/slub.c:3879
__d_alloc+0x32/0xaa0 fs/dcache.c:1624
d_alloc+0x4a/0x1e0 fs/dcache.c:1704
lookup_one_qstr_excl+0xc7/0x180 fs/namei.c:1604
filename_create+0x1ed/0x530 fs/namei.c:3892
do_symlinkat+0xbf/0x310 fs/namei.c:4499
__do_sys_symlinkat fs/namei.c:4522 [inline]
__se_sys_symlinkat fs/namei.c:4519 [inline]
__x64_sys_symlinkat+0x97/0xc0 fs/namei.c:4519
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f1c5ee7c527
Code: 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe3b62fa88 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 00007ffe3b62fb50 RCX: 00007f1c5ee7c527
RDX: 00007f1c5eec952f RSI: 00000000ffffff9c RDI: 00007ffe3b62fb50
RBP: 0000000000000001 R08: 0000000000000013 R09: 00007ffe3b62f7d7
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001