INFO: task pool_workqueue_:3 blocked for more than 143 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:pool_workqueue_ state:D stack:25464 pid:3 tgid:3 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
synchronize_rcu+0x11b/0x360 kernel/rcu/tree.c:4105
lockdep_unregister_key+0x556/0x610 kernel/locking/lockdep.c:6597
wq_unregister_lockdep kernel/workqueue.c:4803 [inline]
pwq_release_workfn+0x6d1/0x800 kernel/workqueue.c:5099
kthread_worker_fn+0x502/0xb70 kernel/kthread.c:844
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task kworker/u8:1:12 blocked for more than 144 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:1 state:D stack:19512 pid:12 tgid:12 ppid:2 flags:0x00004000
Workqueue: events_unbound linkwatch_event
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
linkwatch_event+0xe/0x60 net/core/link_watch.c:276
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task kworker/u8:5:1090 blocked for more than 144 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:5 state:D stack:22136 pid:1090 tgid:1090 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x7e7/0xee0 kernel/locking/mutex.c:735
addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4196
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz-executor:6031 blocked for more than 145 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:19832 pid:6031 tgid:6031 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e5257fb47
RSP: 002b:00007ffdd3b0b688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f0e5257fb47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdd3b0b740
RBP: 00007ffdd3b0b740 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdd3b0c7c0
R13: 00007f0e525f15fc R14: 0000000000047ce0 R15: 00007ffdd3b0c800
INFO: task syz-executor:6040 blocked for more than 146 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:18800 pid:6040 tgid:6040 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7c9877fb47
RSP: 002b:00007ffcadba35f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f7c9877fb47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffcadba36b0
RBP: 00007ffcadba36b0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffcadba4730
R13: 00007f7c987f15fc R14: 0000000000046c94 R15: 00007ffcadba4770
INFO: task syz-executor:6047 blocked for more than 147 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:19968 pid:6047 tgid:6047 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc4e197fb47
RSP: 002b:00007ffe11225ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fc4e197fb47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe11225fb0
RBP: 00007ffe11225fb0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe11227030
R13: 00007fc4e19f15fc R14: 00000000000498e9 R15: 00007ffe11227070
INFO: task syz.1.2010:10378 blocked for more than 148 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2010 state:D stack:24600 pid:10378 tgid:10377 ppid:6033 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3d6e57ffba
RSP: 002b:00007f3d6f30ce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: fffffffffffffffc RBX: 00007f3d6f30cef0 RCX: 00007f3d6e57ffba
RDX: 0000000020000200 RSI: 0000000020005600 RDI: 00007f3d6f30ceb0
RBP: 0000000020000200 R08: 00007f3d6f30cef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020005600
R13: 00007f3d6f30ceb0 R14: 00000000000055df R15: 0000000020000880
INFO: task syz.3.2035:10429 blocked for more than 149 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2035 state:D stack:25024 pid:10429 tgid:10428 ppid:6032 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f385017ffba
RSP: 002b:00007f3850ea9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: fffffffffffffffc RBX: 00007f3850ea9ef0 RCX: 00007f385017ffba
RDX: 0000000020005100 RSI: 0000000020000000 RDI: 00007f3850ea9eb0
RBP: 0000000020005100 R08: 00007f3850ea9ef0 R09: 0000000000000810
R10: 0000000000000810 R11: 0000000000000246 R12: 0000000020000000
R13: 00007f3850ea9eb0 R14: 0000000000005138 R15: 0000000020000180
INFO: task syz-executor:10448 blocked for more than 150 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:20976 pid:10448 tgid:10448 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff7a8b7fb47
RSP: 002b:00007ffefb599d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff7a8b7fb47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffefb599e30
RBP: 00007ffefb599e30 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffefb59aeb0
R13: 00007ff7a8bf15fc R14: 000000000004b889 R15: 00007ffefb59aef0
INFO: task syz.7.2078:10627 blocked for more than 150 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.2078 state:D stack:26224 pid:10627 tgid:10625 ppid:10467 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0b2477e819
RSP: 002b:00007f0b254aa038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed
RAX: 0000000000000000 RBX: 00007f0b24935fa0 RCX: 00007f0b2477e819
RDX: 0000000000000000 RSI: 0000000000c01100 RDI: 0000000020400000
RBP: 00007f0b247f175e R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f0b24935fa0 R15: 00007ffecaa6b3d8
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
INFO: task syz.8.2112:10707 blocked for more than 151 seconds.
Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.8.2112 state:D stack:24160 pid:10707 tgid:10706 ppid:10472 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
exp_funnel_lock kernel/rcu/tree_exp.h:320 [inline]
synchronize_rcu_expedited+0x70a/0x830 kernel/rcu/tree_exp.h:976
namespace_unlock+0x29f/0x4d0 fs/namespace.c:1703
drop_collected_mounts fs/namespace.c:2225 [inline]
put_mnt_ns+0xdc/0x120 fs/namespace.c:5685
free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
do_exit+0xa2a/0x28e0 kernel/exit.c:937
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3016