INFO: task syz-executor.4:4498 blocked for more than 143 seconds.
Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:28376 pid: 4498 ppid: 3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6495
schedule+0xcb/0x190 kernel/sched/core.c:6571
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6630
__mutex_lock_common+0xe4f/0x26e0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
sync_bdevs+0x1b0/0x320 block/bdev.c:1052
ksys_sync+0xdc/0x1c0 fs/sync.c:105
__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: 0033:0x7fd71ee8b5a9
RSP: 002b:00007fd720047168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fd71efac050 RCX: 00007fd71ee8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fd71eee6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc042f3b1f R14: 00007fd720047300 R15: 0000000000022000
INFO: task syz-executor.4:4501 blocked for more than 143 seconds.
Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27288 pid: 4501 ppid: 3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6495
schedule+0xcb/0x190 kernel/sched/core.c:6571
io_schedule+0x83/0x100 kernel/sched/core.c:8715
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1c3/0x240 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:69 [inline]
lock_buffer include/linux/buffer_head.h:404 [inline]
__block_write_full_page+0x61e/0x1710 fs/buffer.c:1785
__writepage+0x60/0x120 mm/page-writeback.c:2425
write_cache_pages+0x7cd/0x1340 mm/page-writeback.c:2360
generic_writepages+0xe4/0x150 mm/page-writeback.c:2451
do_writepages+0x3c3/0x680 mm/page-writeback.c:2469
filemap_fdatawrite_wbc+0x11e/0x170 mm/filemap.c:388
__filemap_fdatawrite_range mm/filemap.c:421 [inline]
__filemap_fdatawrite mm/filemap.c:427 [inline]
filemap_fdatawrite+0x146/0x1d0 mm/filemap.c:432
sync_bdevs+0x242/0x320 block/bdev.c:1064
ksys_sync+0xdc/0x1c0 fs/sync.c:105
__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: 0033:0x7fd71ee8b5a9
RSP: 002b:00007fd720026168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007fd71efac120 RCX: 00007fd71ee8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fd71eee6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc042f3b1f R14: 00007fd720026300 R15: 0000000000022000
INFO: task syz-executor.0:4516 blocked for more than 144 seconds.
Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24696 pid: 4516 ppid: 3643 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5183 [inline]
__schedule+0x91f/0xdf0 kernel/sched/core.c:6495
schedule+0xcb/0x190 kernel/sched/core.c:6571
io_schedule+0x83/0x100 kernel/sched/core.c:8715
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbb/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1c3/0x240 kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:69 [inline]
lock_buffer include/linux/buffer_head.h:404 [inline]
__sync_dirty_buffer+0x107/0x330 fs/buffer.c:2804
__ext4_handle_dirty_metadata+0x29a/0x810 fs/ext4/ext4_jbd2.c:381
ext4_convert_inline_data_nolock+0x6e8/0x820 fs/ext4/inline.c:1256
ext4_convert_inline_data+0x4bf/0x600 fs/ext4/inline.c:2067
ext4_fallocate+0x149/0x1c90 fs/ext4/extents.c:4702
vfs_fallocate+0x515/0x670 fs/open.c:323
do_vfs_ioctl+0x2187/0x29a0 fs/ioctl.c:849
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl+0x83/0x170 fs/ioctl.c:856
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: 0033:0x7f8d56c8b5a9
RSP: 002b:00007f8d57df6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f8d56dac050 RCX: 00007f8d56c8b5a9
RDX: 0000000020000100 RSI: 0000000040305829 RDI: 0000000000000004
RBP: 00007f8d56ce6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe4277ff8f R14: 00007f8d57df6300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x425/0x450 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:369
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: 16773 Comm: kworker/u4:17 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:insn_get_displacement+0x698/0x9a0
Code: 44 8b 7d 00 43 80 7c 35 00 00 48 8b 1c 24 74 08 48 89 df e8 fa 6e 70 fd 48 8b 44 24 08 48 89 03 b3 04 49 8d 7c 24 30 48 89 f8 <48> c1 e8 03 48 bd 00 00 00 00 00 fc ff df 8a 04 28 84 c0 0f 85 4e
RSP: 0018:ffffc900132bf818 EFLAGS: 00000246
RAX: ffffc900132bf990 RBX: ffffc900132bf901 RCX: ffff8880ad3f8000
RDX: 0000000000000000 RSI: ffffffff8d1c1900 RDI: ffffc900132bf990
RBP: ffffffff8a87468e R08: 0000000000000005 R09: ffffffff84697a3b
R10: 0000000000000002 R11: ffff8880ad3f8000 R12: ffffc900132bf960
R13: 1ffff92002657f39 R14: ffffffff8a87468f R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000558bd9da8680 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
insn_get_immediate+0x427/0x12e0 arch/x86/lib/insn.c:632
insn_get_length arch/x86/lib/insn.c:707 [inline]
insn_decode+0x3b0/0x550 arch/x86/lib/insn.c:747
text_poke_loc_init+0xb3/0x500 arch/x86/kernel/alternative.c:1590
arch_jump_label_transform_queue+0x70/0xd0 arch/x86/kernel/jump_label.c:138
__jump_label_update+0x19b/0x3b0 kernel/jump_label.c:447
static_key_disable_cpuslocked+0xc8/0x1b0 kernel/jump_label.c:207
static_key_disable+0x16/0x20 kernel/jump_label.c:215
toggle_allocation_gate+0x3b8/0x450 mm/kfence/core.c:825
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