INFO: task udevd:5394 blocked for more than 143 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:22040 pid:5394 tgid:5394 ppid:4549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
btrfs_control_ioctl+0x150/0x3e0 fs/btrfs/super.c:2225
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f57c4f1ad49
RSP: 002b:00007ffff3a44068 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f57c4f1ad49
RDX: 00007ffff3a44078 RSI: 0000000090009427 RDI: 0000000000000009
RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff3a450b8 R14: 000055596e41da60 R15: 00007ffff3a45dd8
INFO: task udevd:6843 blocked for more than 144 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D
stack:23152 pid:6843 tgid:6843 ppid:4549 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
btrfs_control_ioctl+0x150/0x3e0 fs/btrfs/super.c:2225
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f57c4f1ad49
RSP: 002b:00007ffff3a44068 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f57c4f1ad49
RDX: 00007ffff3a44078 RSI: 0000000090009427 RDI: 0000000000000009
RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff3a450b8 R14: 000055596e41c0b0 R15: 00007ffff3a45dd8
INFO: task syz-executor.2:9991 blocked for more than 145 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:20144 pid:9991 tgid:9990 ppid:8505 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__synchronize_srcu+0x357/0x400 kernel/rcu/srcutree.c:1396
shutdown_cache mm/slab_common.c:454 [inline]
kmem_cache_destroy+0x6a/0x1b0 mm/slab_common.c:496
bio_put_slab block/bio.c:155 [inline]
bioset_exit+0x555/0x650 block/bio.c:1740
bch2_fs_fs_io_direct_exit+0x19/0x30 fs/bcachefs/fs-io-direct.c:668
__bch2_fs_free fs/bcachefs/super.c:544 [inline]
bch2_fs_release+0x179/0x6e0 fs/bcachefs/super.c:603
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x22f/0x480 lib/kobject.c:737
bch2_fs_stop fs/bcachefs/super.c:673 [inline]
bch2_fs_open+0xb57/0xdf0 fs/bcachefs/super.c:2139
bch2_mount+0x71d/0x1320 fs/bcachefs/fs.c:1917
legacy_get_tree+0xee/0x190 fs/fs_context.c:662
vfs_get_tree+0x90/0x2a0 fs/super.c:1780
do_new_mount+0x2be/0xb40 fs/namespace.c:3352
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4b8d47f46a
RSP: 002b:00007f4b8cffeef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f4b8cffef80 RCX: 00007f4b8d47f46a
RDX: 0000000020000140 RSI: 0000000020000700 RDI: 00007f4b8cffef40
RBP: 0000000020000140 R08: 00007f4b8cffef80 R09: 0000000000000800
R10: 0000000000000800 R11: 0000000000000202 R12: 0000000020000700
R13: 00007f4b8cffef40 R14: 0000000000005b41 R15: 0000000020000540
INFO: task syz-executor.0:9995 blocked for more than 147 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D
stack:24528 pid:9995 tgid:9994 ppid:8897 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2557
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xaa9/0xd00 kernel/workqueue.c:4211
__lru_add_drain_all+0x504/0x570 mm/swap.c:902
invalidate_bdev+0x76/0xa0 block/bdev.c:100
xfs_fs_fill_super+0x5ba/0x1420 fs/xfs/xfs_super.c:1785
get_tree_bdev+0x3f7/0x570 fs/super.c:1615
vfs_get_tree+0x90/0x2a0 fs/super.c:1780
do_new_mount+0x2be/0xb40 fs/namespace.c:3352
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f986907f46a
RSP: 002b:00007f9869d9eef8 EFLAGS: 00000202
ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9869d9ef80 RCX: 00007f986907f46a
RDX: 0000000020009700 RSI: 0000000020000000 RDI: 00007f9869d9ef40
RBP: 0000000020009700 R08: 00007f9869d9ef80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 00007f9869d9ef40 R14: 000000000000985a R15: 00000000200003c0
INFO: task syz-executor.3:10009 blocked for more than 148 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D
stack:25048 pid:10009 tgid:10007 ppid:8698 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
btrfs_get_tree_super fs/btrfs/super.c:1802 [inline]
btrfs_get_tree+0x2dc/0x1920 fs/btrfs/super.c:2081
vfs_get_tree+0x90/0x2a0 fs/super.c:1780
fc_mount+0x1b/0xb0 fs/namespace.c:1125
btrfs_get_tree_subvol fs/btrfs/super.c:2044 [inline]
btrfs_get_tree+0x652/0x1920 fs/btrfs/super.c:2082
vfs_get_tree+0x90/0x2a0 fs/super.c:1780
do_new_mount+0x2be/0xb40 fs/namespace.c:3352
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb08367f46a
RSP: 002b:00007fb084361ef8 EFLAGS: 00000202
ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb084361f80 RCX: 00007fb08367f46a
RDX: 0000000020005100 RSI: 0000000020000000 RDI: 00007fb084361f40
RBP: 0000000020005100 R08: 00007fb084361f80 R09: 0000000000000810
R10: 0000000000000810 R11: 0000000000000202 R12: 0000000020000000
R13: 00007fb084361f40 R14: 000000000000510e R15: 0000000020000040
INFO: task syz-executor.1:10010 blocked for more than 149 seconds.
Not tainted 6.9.0-rc7-next-20240510-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D
stack:25048 pid:10010 tgid:10008 ppid:8796 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
__lru_add_drain_all+0x66/0x570 mm/swap.c:857
invalidate_bdev+0x76/0xa0 block/bdev.c:100
btrfs_get_bdev_and_sb+0x11a/0x1c0 fs/btrfs/volumes.c:492
btrfs_open_one_device fs/btrfs/volumes.c:657 [inline]
open_fs_devices+0x2b4/0x1290 fs/btrfs/volumes.c:1196
btrfs_get_tree_super fs/btrfs/super.c:1818 [inline]
btrfs_get_tree+0x504/0x1920 fs/btrfs/super.c:2081
vfs_get_tree+0x90/0x2a0 fs/super.c:1780
fc_mount+0x1b/0xb0 fs/namespace.c:1125
btrfs_get_tree_subvol fs/btrfs/super.c:2044 [inline]
btrfs_get_tree+0x652/0x1920 fs/btrfs/super.c:2082
vfs_get_tree+0x90/0x2a0 fs/super.c:1780
do_new_mount+0x2be/0xb40 fs/namespace.c:3352
do_mount fs/namespace.c:3692 [inline]
__do_sys_mount fs/namespace.c:3898 [inline]
__se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fadc7e7f46a
RSP: 002b:00007fadc8c0eef8 EFLAGS: 00000202
ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fadc8c0ef80 RCX: 00007fadc7e7f46a
RDX: 00000000200055c0 RSI: 0000000020005600 RDI: 00007fadc8c0ef40
RBP: 00000000200055c0 R08: 00007fadc8c0ef80 R09: 0000000001008000
R10: 0000000001008000 R11: 0000000000000202 R12: 0000000020005600
R13: 00007fadc8c0ef40 R14: 00000000000055a3 R15: 00000000200000c0
Showing all locks held in the system:
2 locks held by kworker/u8:1/12:
#0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015089148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000117d00 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000117d00 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
6 locks held by ksoftirqd/0/16:
1 lock held by khungtaskd/30:
#0:
ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
ffffffff8e333e60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by kworker/u8:2/35:
#0:
ffff888015089148
((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000ab7d00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000ab7d00 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
5 locks held by kworker/u8:5/771:
5 locks held by kworker/0:2/930:
4 locks held by kworker/u8:6/1093:
#0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015ed5948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc9000496fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc9000496fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8f5da2d0
(
pernet_ops_rwsem){++++}-{3:3}
, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffffffff8f5e6b08 (rtnl_mutex){+.+.}-{3:3}
, at: wg_netns_pre_exit+0x1f/0x1e0 drivers/net/wireguard/device.c:414
5 locks held by kworker/u8:10/2825:
3 locks held by kworker/u8:11/2835:
#0:
ffff888029cdc148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc9000a66fd00
((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2:
ffffffff8f5e6b08
(rtnl_mutex){+.+.}-{3:3}
, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733
2 locks held by getty/4853:
#0: ffff88802abc20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc90002f162f0
(&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
2 locks held by kworker/0:5/5170:
3 locks held by kworker/0:7/5221:
2 locks held by kworker/0:8/5222:
4 locks held by udevd/5258:
#0:
ffff88806e73bb08 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182
#1:
ffff88802c465488
(&of->mutex
#2
){+.+.}-{3:3}
, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2:
ffff8880561e50f8 (kn->active#18){.+.+}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3: