INFO: task kworker/u4:2:30767 blocked for more than 143 seconds.
Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:2 state:D stack:21304 pid:30767 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:4)
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
rwsem_down_write_slowpath+0xfc1/0x1480 kernel/locking/rwsem.c:1190
__down_write_common kernel/locking/rwsem.c:1305 [inline]
__down_write kernel/locking/rwsem.c:1314 [inline]
down_write+0x231/0x270 kernel/locking/rwsem.c:1563
f2fs_down_write fs/f2fs/f2fs.h:2205 [inline]
f2fs_balance_fs+0x4fa/0x6e0 fs/f2fs/segment.c:409
f2fs_write_inode+0x4c8/0x550 fs/f2fs/inode.c:753
write_inode fs/fs-writeback.c:1440 [inline]
__writeback_single_inode+0x4d6/0x670 fs/fs-writeback.c:1652
writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1870
__writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1941
wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2046
wb_check_start_all fs/fs-writeback.c:2168 [inline]
wb_do_writeback fs/fs-writeback.c:2194 [inline]
wb_workfn+0x827/0xef0 fs/fs-writeback.c:2227
process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INFO: task syz-executor.3:19613 blocked for more than 144 seconds.
Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29432 pid:19613 ppid:3644 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
wb_wait_for_completion+0x155/0x280 fs/fs-writeback.c:191
sync_inodes_sb+0x283/0xaa0 fs/fs-writeback.c:2706
iterate_supers+0x137/0x1f0 fs/super.c:723
ksys_sync+0xb7/0x1c0 fs/sync.c:102
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fb36088b5f9
RSP: 002b:00007fb36199f168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fb3609ac050 RCX: 00007fb36088b5f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fb3608e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffae78318f R14: 00007fb36199f300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 46 Comm: kworker/u4:3 Not tainted 6.1.0-rc1-syzkaller-00249-g4da34b7d175d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Workqueue: 0x0 (phy4)
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x8a/0x2e0 mm/kasan/generic.c:189
Code: ce 49 83 fe 10 7f 30 4d 85 f6 0f 84 8e 01 00 00 4c 89 cb 4c 29 d3 66 2e 0f 1f 84 00 00 00 00 00 41 80 39 00 0f 85 e7 01 00 00 <49> ff c1 48 ff c3 75 ee e9 67 01 00 00 44 89 cd 83 e5 07 0f 84 f1
RSP: 0000:ffffc90000b77bf0 EFLAGS: 00000046
RAX: 1ffff1100f41dd01 RBX: ffffffffffffffff RCX: ffffffff8157c28d
RDX: 0000000000000000 RSI: 0000000000000028 RDI: ffff8880265e5850
RBP: 000000000001ffff R08: dffffc0000000000 R09: ffffed1004cbcb0e
R10: ffffed1004cbcb0f R11: 1ffff11004cbcb0a R12: 0000000000000028
R13: dffffc0000000000 R14: 0000000000000005 R15: ffffc90000b77d00
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c028865000 CR3: 00000000217b8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memcpy+0x25/0x60 mm/kasan/shadow.c:65
lockdep_copy_map include/linux/lockdep.h:31 [inline]
process_one_work+0x17d/0xdb0 kernel/workqueue.c:2200
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306