INFO: task kworker/0:4:5060 blocked for more than 143 seconds.
Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:24720 pid:5060 tgid:5060 ppid:2 flags:0x00004000
Workqueue: events_long flush_old_commits
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:747
reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
reiserfs_sync_fs+0x95/0x140 fs/reiserfs/super.c:76
flush_old_commits+0xf5/0x1f0 fs/reiserfs/super.c:111
process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
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
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cfa7d60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8cfa7d60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8cfa7d60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4816:
#0: ffff88814c2e00a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
4 locks held by kworker/0:4/5060:
#0: ffff888013077538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1: ffffc90003447d80 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}
, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
#2:
ffff8880288320e0 (&type->s_umount_key#24){++++}-{3:3}, at: flush_old_commits+0x79/0x1f0 fs/reiserfs/super.c:97
#3: ffff888057ef5090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
4 locks held by syz-executor.0/5477:
2 locks held by syz-executor.0/5784:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #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: 1047 Comm: kworker/u4:7 Not tainted 6.7.0-rc6-syzkaller-00022-g55cb5f43689d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:748 [inline]
RIP: 0010:ieee80211_update_sta_info net/mac80211/ibss.c:983 [inline]
RIP: 0010:ieee80211_rx_bss_info net/mac80211/ibss.c:1096 [inline]
RIP: 0010:ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1577 [inline]
RIP: 0010:ieee80211_ibss_rx_queued_mgmt+0x279e/0x3120 net/mac80211/ibss.c:1604
Code: ff e8 96 d0 90 f7 48 c7 c2 c0 e8 0b 8c be 08 03 00 00 48 c7 c7 80 e8 0b 8c c6 05 c0 f0 0c 05 01 e8 57 bd 70 f7 e9 88 f1 ff ff 6d d0 90 f7 e8 a8 28 79 f7 31 ff 41 89 c5 89 c6 e8 8c cb 90 f7
RSP: 0018:ffffc90004ccfa10 EFLAGS: 00000202
RAX: ffffffff89f579f1 RBX: ffff8880778c5440 RCX: ffffffff89f57a08
RDX: ffff88801f314100 RSI: 0000000000000000 RDI: 0000000000000005
RBP: ffffc90004ccfc30 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000001 R14: ffff888028bb0c80 R15: ffff88801af4e090
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffb072af98 CR3: 0000000028534000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_iface_process_skb net/mac80211/iface.c:1589 [inline]
ieee80211_iface_work+0xa67/0xda0 net/mac80211/iface.c:1643
cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:437
process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
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