INFO: task kworker/0:0H:10 blocked for more than 143 seconds.
Not tainted 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0H state:D stack:25624 pid:10 tgid:10 ppid:2 flags:0x00004000
Workqueue: xfs-log/loop3 xlog_ioend_work
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_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
___down_common kernel/locking/semaphore.c:225 [inline]
__down_common+0x375/0x820 kernel/locking/semaphore.c:246
down+0x84/0xc0 kernel/locking/semaphore.c:63
xfs_buf_lock+0x164/0x510 fs/xfs/xfs_buf.c:1196
xfs_buf_item_unpin+0x1de/0x700 fs/xfs/xfs_buf_item.c:582
xlog_cil_committed+0x961/0xee0 fs/xfs/xfs_log_cil.c:904
xlog_cil_process_committed+0x15c/0x1b0 fs/xfs/xfs_log_cil.c:934
xlog_state_shutdown_callbacks+0x2ba/0x3b0 fs/xfs/xfs_log.c:487
xlog_force_shutdown+0x377/0x3e0 fs/xfs/xfs_log.c:3541
xlog_ioend_work+0xad/0x100 fs/xfs/xfs_log.c:1244
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
INFO: task syz.3.7:5967 blocked for more than 144 seconds.
Not tainted 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.7 state:D stack:20568 pid:5967 tgid:5947 ppid:5825 flags:0x00004006
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
xlog_wait fs/xfs/xfs_log_priv.h:588 [inline]
xlog_wait_on_iclog+0x501/0x760 fs/xfs/xfs_log.c:840
xlog_force_lsn+0x50c/0x9d0 fs/xfs/xfs_log.c:3066
xfs_log_force_seq+0x1da/0x450 fs/xfs/xfs_log.c:3103
__xfs_trans_commit+0x812/0xc40 fs/xfs/xfs_trans.c:907
xfs_trans_commit+0x14e/0x220 fs/xfs/xfs_trans.c:956
xfs_sync_sb_buf+0x1da/0x2d0 fs/xfs/libxfs/xfs_sb.c:1399
xfs_ioc_setlabel fs/xfs/xfs_ioctl.c:1037 [inline]
xfs_file_ioctl+0x1728/0x1b20 fs/xfs/xfs_ioctl.c:1194
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: 0033:0x7fd9c5985d29
RSP: 002b:00007fd9c67e0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd9c5b76080 RCX: 00007fd9c5985d29
RDX: 0000000020000100 RSI: 0000000041009432 RDI: 000000000000000c
RBP: 00007fd9c5a01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd9c5b76080 R15: 00007ffcfb1084f8
Showing all locks held in the system:
2 locks held by pool_workqueue_/3:
2 locks held by kworker/0:0H/10:
#0: ffff8880119f7548 ((wq_completion)xfs-log/loop3){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8880119f7548 ((wq_completion)xfs-log/loop3){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1840 kernel/workqueue.c:3310
#1: ffffc900000f7d00 ((work_completion)(&iclog->ic_end_io_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900000f7d00 ((work_completion)(&iclog->ic_end_io_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1840 kernel/workqueue.c:3310
4 locks held by kworker/u8:0/11:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
3 locks held by kworker/u8:9/3510:
2 locks held by getty/5573:
#0: ffff8880355420a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000330b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz.3.7/5967:
#0: ffff888030adc420 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write_file+0x5e/0x200 fs/namespace.c:559
5 locks held by syz.1.272/8494:
#0: ffff88807b1a8420 (sb_writers#14){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff888054d09048 (&sb->s_type->i_mutex_key#22){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff888054d09048 (&sb->s_type->i_mutex_key#22){++++}-{4:4}, at: do_truncate+0x20c/0x310 fs/open.c:63
#2: ffff88804cc00a38 (&c->snapshot_create_lock){.+.+}-{4:4}, at: bch2_truncate+0x166/0x2d0 fs/bcachefs/io_misc.c:292
#3: ffff88804cc04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline]
#3: ffff88804cc04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline]
#3: ffff88804cc04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7e1/0xd30 fs/bcachefs/btree_iter.c:3228
#4: ffff88804cc266d0 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x682/0x14e0 fs/bcachefs/btree_update_interior.c:1197
1 lock held by dhcpcd-run-hook/8667:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 3510 Comm: kworker/u8:9 Not tainted 6.13.0-rc6-syzkaller-00036-gfbfd64d25c7a #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:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x6f2/0x22d0 arch/x86/kernel/unwind_orc.c:494
Code: b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 48 63 03 48 01 d8 48 8d 4b 04 4c 39 f8 4c 0f 46 f1 48 8d 43 fc 48 0f 47 e8 <4c> 0f 46 e3 49 39 ee 76 a9 e9 55 fb ff ff 89 d9 80 e1 07 80 c1 03
RSP: 0018:ffffc9000d4175d0 EFLAGS: 00000202
RAX: ffffffff9027bb80 RBX: ffffffff9027bb84 RCX: ffffffff9027bb88
RDX: 00000000000b0001 RSI: ffffffff909c62ce RDI: 0000000000000001
RBP: ffffffff9027bb80 R08: 0000000000000015 R09: ffffc9000d417790
R10: ffffc9000d4176f0 R11: ffffffff818b39c0 R12: ffffffff9027bb70
R13: ffffffff9027bb48 R14: ffffffff9027bb74 R15: ffffffff8109e679
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561648d8aa18 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x59/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4613 [inline]
kmem_cache_free+0x195/0x410 mm/slub.c:4715
nsim_dev_trap_report drivers/net/netdevsim/dev.c:821 [inline]
nsim_dev_trap_report_work+0x7cc/0xb50 drivers/net/netdevsim/dev.c:851
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