INFO: task kworker/0:7:4296 blocked for more than 144 seconds.
Not tainted 6.1.129-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7 state:D stack:23936 pid:4296 ppid:2 flags:0x00004000
Workqueue: gfs_recovery gfs2_recover_func
Call Trace:
context_switch kernel/sched/core.c:5243 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6560
schedule+0xbf/0x180 kernel/sched/core.c:6636
io_schedule+0x88/0x100 kernel/sched/core.c:8788
folio_wait_bit_common+0x878/0x1290 mm/filemap.c:1324
folio_wait_locked include/linux/pagemap.h:1057 [inline]
gfs2_jhead_process_page+0x18e/0x800 fs/gfs2/lops.c:476
gfs2_find_jhead+0x688/0xef0 fs/gfs2/lops.c:583
gfs2_recover_func+0x6b6/0x1f20 fs/gfs2/recovery.c:460
process_one_work+0x917/0x1260 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task syz.0.132:5005 blocked for more than 145 seconds.
Not tainted 6.1.129-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.132 state:D stack:23664 pid:5005 ppid:4250 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5243 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6560
schedule+0xbf/0x180 kernel/sched/core.c:6636
bit_wait+0xe/0xc0 kernel/sched/wait_bit.c:199
__wait_on_bit+0xa8/0x2e0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d0/0x250 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
gfs2_recover_journal+0xee/0x150 fs/gfs2/recovery.c:577
init_journal+0x184d/0x2470 fs/gfs2/ops_fstype.c:835
init_inodes+0xdc/0x310 fs/gfs2/ops_fstype.c:889
gfs2_fill_super+0x1c40/0x2770 fs/gfs2/ops_fstype.c:1246
get_tree_bdev+0x3fe/0x620 fs/super.c:1366
gfs2_get_tree+0x50/0x210 fs/gfs2/ops_fstype.c:1327
vfs_get_tree+0x88/0x270 fs/super.c:1573
do_new_mount+0x2ba/0xb40 fs/namespace.c:3056
do_mount fs/namespace.c:3399 [inline]
__do_sys_mount fs/namespace.c:3607 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3584
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f053e98e90a
RSP: 002b:00007f053f818e68 EFLAGS: 00000246
ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f053f818ef0 RCX: 00007f053e98e90a
RDX: 0000400000021140 RSI: 0000400000000040 RDI: 00007f053f818eb0
RBP: 0000400000021140 R08: 00007f053f818ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000400000000040
R13: 00007f053f818eb0 R14: 000000000002118b R15: 0000400000001380
Showing all locks held in the system:
3 locks held by kworker/u4:0/9:
#0: ffff888017c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#1: ffffc900000e7d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#2: ffffffff8e54faa8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d32e850 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d32f050 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
3 locks held by kworker/1:0/22:
#0: ffff8881426f3d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#1: ffffc900001c7d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#2: ffff888028745190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#2: ffff888028745190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1fe/0x5730 drivers/usb/core/hub.c:5813
2 locks held by kworker/1:1/26:
#0: ffff888017c72138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#1: ffffc90000a1fd20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
1 lock held by khungtaskd/28:
#0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d32e680 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510
3 locks held by kworker/1:2/127:
#0: ffff888017c70938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#1: ffffc90002d97d20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#2: ffff88807bf3d240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x316/0x41f0 drivers/net/netdevsim/fib.c:1491
2 locks held by getty/4008:
#0: ffff88814c93a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x54a/0x1620 drivers/tty/n_tty.c:2198
2 locks held by kworker/0:7/4296:
#0: ffff88801f2a2538 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#1: ffffc90003fe7d20 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
2 locks held by syz-executor/4565:
#0: ffff88801da620e0 (&type->s_umount_key#81){+.+.}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
#1: ffffffff8d333cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#1: ffffffff8d333cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f0/0x930 kernel/rcu/tree_exp.h:962
1 lock held by syz.0.132/5005:
#0: ffff8880662180e0 (&type->s_umount_key#82/1){+.+.}-{3:3}, at: alloc_super+0x217/0x930 fs/super.c:228
3 locks held by kworker/0:12/5781:
#0: ffff88803028b538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#1: ffffc9000520fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x806/0x1260 kernel/workqueue.c:2267
#2: ffffffff8e54faa8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x16e0 net/ipv6/addrconf.c:4134
3 locks held by syz-executor/6640:
#0: ffffffff8e54faa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8e54faa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7cb/0x1000 net/core/rtnetlink.c:6147
#1: ffff888041eb93e8 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_open+0x229/0x410 drivers/net/wireguard/device.c:49
#2: ffffffff8d333cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:323 [inline]
#2: ffffffff8d333cb8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x360/0x930 kernel/rcu/tree_exp.h:962
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ca/0x430 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3611 Comm: klogd Not tainted 6.1.129-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:check_preemption_disabled+0x5c/0x110 lib/smp_processor_id.c:19
Code: 25 28 00 00 00 48 3b 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5e 41 5f c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 04 24 00 02 00 00 74 c9 49 89 f6 49 89 ff 65 4c 8b 25 bd 74 51
RSP: 0018:ffffc900032a7628 EFLAGS: 00000046
RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffffffff816aca47
RDX: 0000000000000000 RSI: ffffffff8b0c2a20 RDI: ffffffff8b5f6d80
RBP: ffffc900032a7798 R08: dffffc0000000000 R09: fffffbfff1d413e6
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000654ed8
R13: 0000000000000246 R14: ffffc900032a7710 R15: dffffc0000000000
FS: 00007fe753d3c380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564b727be000 CR3: 000000007e436000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
lock_release+0x19e/0xa20 kernel/locking/lockdep.c:5681
rcu_lock_release include/linux/rcupdate.h:355 [inline]
rcu_read_unlock include/linux/rcupdate.h:824 [inline]
get_obj_cgroup_from_current+0x1ca/0x280 mm/memcontrol.c:3022
memcg_slab_pre_alloc_hook mm/slab.h:485 [inline]
slab_pre_alloc_hook+0x90/0x300 mm/slab.h:715
slab_alloc_node mm/slub.c:3318 [inline]
kmem_cache_alloc_node+0x52/0x310 mm/slub.c:3443
__alloc_skb+0xd3/0x2c0 net/core/skbuff.c:505
alloc_skb include/linux/skbuff.h:1271 [inline]
alloc_skb_with_frags+0xa4/0x740 net/core/skbuff.c:6162
sock_alloc_send_pskb+0x915/0xa50 net/core/sock.c:2750
unix_dgram_sendmsg+0x5b1/0x2060 net/unix/af_unix.c:1918
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x480/0x600 net/socket.c:2153
__do_sys_sendto net/socket.c:2165 [inline]
__se_sys_sendto net/socket.c:2161 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2161
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe753e9e9b5
Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd2e791c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe753e9e9b5
RDX: 000000000000003a RSI: 000055776e04b4d0 RDI: 0000000000000003
RBP: 000055776e044910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007fe75402c212 R14: 00007ffd2e791d68 R15: 0000000000000000
vkms_vblank_simulate: vblank timer overrun