INFO: task syz.3.760:8892 blocked for more than 143 seconds.
Not tainted 6.13.0-rc4-syzkaller-00078-g059dd502b263 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.760 state:D stack:27360 pid:8892 tgid:8889 ppid:7731 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
filemap_invalidate_lock include/linux/fs.h:863 [inline]
blk_ioctl_zeroout block/ioctl.c:238 [inline]
blkdev_common_ioctl+0x14f3/0x2460 block/ioctl.c:572
blkdev_ioctl+0x4ca/0x6a0 block/ioctl.c:687
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf5/0x170 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd941b85d29
RSP: 002b:00007fd94293a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd941d75fa0 RCX: 00007fd941b85d29
RDX: 0000000020000100 RSI: 000000000000127f RDI: 0000000000000003
RBP: 00007fd941c01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd941d75fa0 R15: 00007ffdb20e5048
Showing all locks held in the system:
2 locks held by rcu_tasks_trace/15:
#0: ffffffff8e9380b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{4:4}, at: rcu_tasks_one_gp+0xaed/0xe10 kernel/rcu/tasks.h:613
#1:
ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
1 lock held by khungtaskd/30:
#0:
ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
7 locks held by kworker/1:2/1204:
3 locks held by kworker/u8:7/2896:
2 locks held by getty/5577:
#0:
ffff8880313f70a0
(&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
5 locks held by kworker/1:7/5899:
1 lock held by syz.2.277/7013:
2 locks held by syz.0.331/7188:
1 lock held by syz.9.747/8826:
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_fault+0xb3e/0x1490 mm/filemap.c:3351
1 lock held by syz.3.760/8892:
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:863 [inline]
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: blk_ioctl_zeroout block/ioctl.c:238 [inline]
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: blkdev_common_ioctl+0x14f3/0x2460 block/ioctl.c:572
1 lock held by syz.6.857/9302:
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.6.857/9305:
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.6.857/9306:
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca2bc0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc4-syzkaller-00078-g059dd502b263 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 2896 Comm: kworker/u8:7 Not tainted 6.13.0-rc4-syzkaller-00078-g059dd502b263 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:19 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:147 [inline]
RIP: 0010:lock_release+0x609/0xa30 kernel/locking/lockdep.c:5873
Code: 00 48 c7 c7 e0 aa 0a 8c e8 24 0d 46 0a b8 ff ff ff ff 65 0f c1 05 97 ae 87 7e 83 f8 01 0f 85 9a 00 00 00 4c 89 f3 48 c1 eb 03 <42> 80 3c 3b 00 74 08 4c 89 f7 e8 88 75 88 00 48 c7 84 24 90 00 00
RSP: 0018:ffffc9000b6d7780 EFLAGS: 00000802
RAX: 0000000000000001 RBX: 1ffff920016daf02 RCX: ffffc9000b6d7803
RDX: 0000000000000002 RSI: ffffffff8c0aaae0 RDI: ffffffff8c5edd20
RBP: ffffc9000b6d78b0 R08: ffffffff90185337 R09: 1ffffffff2030a66
R10: dffffc0000000000 R11: fffffbfff2030a67 R12: 1ffff920016daefc
R13: 0000000000000046 R14: ffffc9000b6d7810 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c27da18 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x79/0x140 kernel/locking/spinlock.c:194
__mod_timer+0xb89/0xeb0 kernel/time/timer.c:1185
queue_delayed_work_on+0x1ca/0x390 kernel/workqueue.c:2552
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244