INFO: task kworker/u8:2:35 blocked for more than 143 seconds.
Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:2 state:D stack:23056 pid:35 tgid:35 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-7:1)
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x17fa/0x4bd0 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
io_schedule+0x8d/0x110 kernel/sched/core.c:7577
TXN_SLEEP_DROP_LOCK fs/jfs/jfs_txnmgr.c:125 [inline]
txBeginAnon+0x16c/0x4b0 fs/jfs/jfs_txnmgr.c:468
extAlloc+0xf5/0x1010 fs/jfs/jfs_extent.c:78
jfs_get_block+0x41b/0xe60 fs/jfs/inode.c:248
__mpage_writepage+0x81a/0x1ae0 fs/mpage.c:543
write_cache_pages+0xd0/0x230 mm/page-writeback.c:2640
mpage_writepages+0xf9/0x1c0 fs/mpage.c:666
do_writepages+0x35f/0x880 mm/page-writeback.c:2683
__writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1976
wb_writeback+0x413/0xbc0 fs/fs-writeback.c:2156
wb_do_writeback fs/fs-writeback.c:2303 [inline]
wb_workfn+0x410/0x1090 fs/fs-writeback.c:2343
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 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
</TASK>
INFO: task jfsCommit:113 blocked for more than 144 seconds.
Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit state:D stack:26288 pid:113 tgid:113 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x17fa/0x4bd0 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
inode_wait_for_writeback+0x199/0x2a0 fs/fs-writeback.c:1553
evict+0x4b0/0x9a0 fs/inode.c:792
txUpdateMap+0x931/0xb10 fs/jfs/jfs_txnmgr.c:2367
txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
jfs_lazycommit+0x49a/0xb80 fs/jfs/jfs_txnmgr.c:2733
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
</TASK>
INFO: task syz-executor:5826 blocked for more than 144 seconds.
Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:19056 pid:5826 tgid:5826 ppid:1 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x17fa/0x4bd0 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
wb_wait_for_completion+0x166/0x290 fs/fs-writeback.c:216
__writeback_inodes_sb_nr+0x2d2/0x380 fs/fs-writeback.c:2735
sync_filesystem+0xa4/0x230 fs/sync.c:54
generic_shutdown_super+0x72/0x2d0 fs/super.c:621
kill_block_super+0x44/0x90 fs/super.c:1710
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
task_work_run+0x24f/0x310 kernel/task_work.c:239
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8251d7fa87
RSP: 002b:00007ffc102b7c48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8251d7fa87
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc102b7d00
RBP: 00007ffc102b7d00 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc102b8d80
R13: 00007f8251df15fc R14: 0000000000019463 R15: 00007ffc102b8dc0
</TASK>
Showing all locks held in the system:
3 locks held by kworker/0:1/9:
#0: ffff8880b863ea58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffff8880b8628948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffff888062d4cda0 (&r->consumer_lock#2){+.+.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline]
#2: ffff888062d4cda0 (&r->consumer_lock#2){+.+.}-{2:2}, at: ptr_ring_consume_bh include/linux/ptr_ring.h:365 [inline]
#2: ffff888062d4cda0 (&r->consumer_lock#2){+.+.}-{2:2}, at: wg_packet_encrypt_worker+0x12a6/0x1610 drivers/net/wireguard/send.c:293
1 lock held by khungtaskd/30:
#0: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
3 locks held by kworker/u8:2/35:
#0: ffff8880206e8948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff8880206e8948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90000ab7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000ab7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffff88804fe4b888 (&jfs_ip->rdwrlock#3){++++}-{3:3}, at: jfs_get_block+0x1e0/0xe60 fs/jfs/inode.c:213
3 locks held by kworker/u8:6/1635:
#0: ffff8880b873ea58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffff8880b8728948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#2: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#2: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
#2: ffffffff8e939f60 (rcu_read_lock){....}-{1:2}, at: batadv_nc_worker+0xcb/0x610 net/batman-adv/network-coding.c:719
3 locks held by kworker/u8:7/3017:
#0: ffff88814d511948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88814d511948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc9000c1ffd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000c1ffd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196
3 locks held by kworker/u8:8/3569:
#0: ffff8880b873ea58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
#1: ffff8880b8728948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x41d/0x7a0 kernel/sched/psi.c:987
#2: ffff8880b872a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240 kernel/time/timer.c:1051
1 lock held by dhcpcd/5498:
#0: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672
2 locks held by getty/5589:
#0: ffff88814d68e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5826:
#0: ffff888030f220e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888030f220e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888030f220e0 (&type->s_umount_key#50){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
2 locks held by syz-executor/7780:
#0: ffff88807c4280e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88807c4280e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88807c4280e0 (&type->s_umount_key#50){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8ed616c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/7790:
#0: ffff88806df480e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88806df480e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88806df480e0 (&type->s_umount_key#50){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8ed616c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/8796:
#0: ffff8880280f20e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880280f20e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880280f20e0 (&type->s_umount_key#50){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
#1: ffffffff8ed616c8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb2/0x530 fs/jfs/jfs_logmgr.c:1444
3 locks held by kworker/u8:12/9103:
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc900037dfd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900037dfd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
1 lock held by syz.1.533/10018:
#0: ffff888030f220e0 (&type->s_umount_key#50){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff888030f220e0 (&type->s_umount_key#50){++++}-{3:3}, at: super_lock+0x27c/0x400 fs/super.c:120
1 lock held by syz-executor/10290:
#0: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6672
8 locks held by syz-executor/10370:
#0: ffff888035620420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff888035620420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x225/0xd30 fs/read_write.c:675
#1: ffff88806533e488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888025eff1e8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f566288 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
#4: ffff88801c70b0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88801c70b0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff88801c70b0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffff88801c70c250 (&devlink->lock_key#5){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1675
#6: ffffffff8fcc84c8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x71/0x5c0 drivers/net/netdevsim/netdev.c:773
#7: ffffffff8e93f4f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#7: ffffffff8e93f4f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
4 locks held by syz-executor/10409:
#0: ffff888035620420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff888035620420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x225/0xd30 fs/read_write.c:675
#1: ffff888060b15888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888025eff0f8 (kn->active#50){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f566288 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x1b4/0x890 drivers/net/netdevsim/bus.c:166
4 locks held by syz-executor/10463:
#0: ffff888035620420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff888035620420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x225/0xd30 fs/read_write.c:675
#1: ffff888031f2d488 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888025eff1e8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f566288 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
<TASK>
__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:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
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
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 1332 Comm: kworker/u8:5 Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4347 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0x3a5/0x780 kernel/locking/lockdep.c:4406
Code: 04 10 84 c0 75 50 8b 43 20 a9 00 00 04 00 74 28 31 d2 a9 00 00 03 00 0f 94 c2 83 f2 07 48 8b 7c 24 10 48 89 de e8 3b b0 00 00 <48> ba 00 00 00 00 00 fc ff df 85 c0 74 7e 49 ff c5 41 0f b6 04 17
RSP: 0018:ffffc90004657960 EFLAGS: 00000086
RAX: 0000000000000001 RBX: ffff888027d32958 RCX: ffffffff8170d17a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff942a88f8
RBP: ffffc90004657a08 R08: ffffffff942a88ff R09: 1ffffffff285511f
R10: dffffc0000000000 R11: fffffbfff2855120 R12: ffff888027d32978
R13: 0000000000000003 R14: ffff888027d328d8 R15: 1ffff11004fa651b
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c0c62cd131 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
__local_bh_enable_ip+0x168/0x200 kernel/softirq.c:387
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x75d/0xab0 drivers/net/netdevsim/dev.c:851
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 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
</TASK>