INFO: task kworker/u4:0:10 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0 state:D stack:12272 pid:10 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x43b/0x960 kernel/locking/mutex.c:747
exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
synchronize_rcu_expedited+0x240/0x700 kernel/rcu/tree_exp.h:992
synchronize_rcu+0x3e/0x2d0 kernel/rcu/tree.c:3499
cleanup_net+0x24c/0x440 net/core/net_namespace.c:610
process_one_work+0x242/0x490 kernel/workqueue.c:2405
worker_thread+0x218/0x370 kernel/workqueue.c:2552
kthread+0xe5/0x100 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor.5:8206 blocked for more than 143 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:13928 pid:8206 ppid:7366 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
percpu_rwsem_wait+0x117/0x140 kernel/locking/percpu-rwsem.c:162
__percpu_down_read+0x85/0x160 kernel/locking/percpu-rwsem.c:177
percpu_down_read include/linux/percpu-rwsem.h:65 [inline]
cgroup_threadgroup_change_begin include/linux/cgroup-defs.h:751 [inline]
exit_signals+0x1ce/0x290 kernel/signal.c:2966
do_exit+0x13d/0xa30 kernel/exit.c:827
do_group_exit+0x85/0xa0 kernel/exit.c:1021
get_signal+0x73c/0x7f0 kernel/signal.c:2874
arch_do_signal_or_restart+0x89/0x290 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop+0x61/0xb0 kernel/entry/common.c:168
exit_to_user_mode_prepare+0x64/0xb0 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x2b/0x1d0 kernel/entry/common.c:297
do_syscall_64+0x4d/0x90 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4d8bc7ba1a
RSP: 002b:00007fff4d97cc50 EFLAGS: 00000293
ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f4d8bc7ba1a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b30160000 R09: 00007f4d8bd9bf8c
R10: 00007fff4d97cda0 R11: 0000000000000293 R12: 00007f4d8b8003c0
R13: ffffffffffffffff R14: 00007f4d8b800000 R15: 00000000000598cc
INFO: task syz-executor.5:8244 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:11720 pid:8244 ppid:8242 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x32/0x50 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x43b/0x960 kernel/locking/mutex.c:747
cgroup_lock include/linux/cgroup.h:370 [inline]
cgroup_kn_lock_live+0x7e/0xd0 kernel/cgroup/cgroup.c:1683
__cgroup_procs_write+0x37/0x190 kernel/cgroup/cgroup.c:5145
cgroup_procs_write+0x12/0x20 kernel/cgroup/cgroup.c:5185
cgroup_file_write+0x8b/0x170 kernel/cgroup/cgroup.c:4071
kernfs_fop_write_iter+0x129/0x1a0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:1868 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x334/0x3f0 fs/read_write.c:584
ksys_write+0x70/0xe0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa453c7b830
RSP: 002b:00007fffdca145d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa453c7b830
RDX: 0000000000000001 RSI: 00007fffdca14600 RDI: 0000000000000003
RBP: 00007fffdca14ba0 R08: 0000000000000001 R09: 00007fffdca14407
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
R13: 00007fffdca14600 R14: 00007fffdca14b60 R15: 00007fffdca14ba0
INFO: task syz-executor.4:8245 blocked for more than 144 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D
stack:11800 pid:8245 ppid:8243 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
synchronize_rcu_expedited+0x5b9/0x700 kernel/rcu/tree_exp.h:1007
synchronize_rcu+0x3e/0x2d0 kernel/rcu/tree.c:3499
rcu_sync_enter+0xe0/0x160 kernel/rcu/sync.c:149
percpu_down_write+0x5a/0x1d0 kernel/locking/percpu-rwsem.c:231
cpuset_can_attach+0x54/0x120 kernel/cgroup/cpuset.c:2487
cgroup_migrate_execute+0xa4/0x3b0 kernel/cgroup/cgroup.c:2584
cgroup_migrate kernel/cgroup/cgroup.c:2887 [inline]
cgroup_attach_task+0x155/0x240 kernel/cgroup/cgroup.c:2920
__cgroup1_procs_write+0xfd/0x160 kernel/cgroup/cgroup-v1.c:523
cgroup_file_write+0x8b/0x170 kernel/cgroup/cgroup.c:4071
kernfs_fop_write_iter+0x129/0x1a0 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:1868 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x334/0x3f0 fs/read_write.c:584
ksys_write+0x70/0xe0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f006d47b830
RSP: 002b:00007ffd4b8ddce8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f006d47b830
RDX: 0000000000000001 RSI: 00007ffd4b8ddd10 RDI: 0000000000000003
RBP: 00007ffd4b8de2b0 R08: 0000000000000001 R09: 00007ffd4b8ddb17
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
R13: 00007ffd4b8ddd10 R14: 00007ffd4b8de270 R15: 00007ffd4b8de2b0
INFO: task syz-executor232:9449 blocked for more than 145 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor232 state:D stack:14072 pid:9449 ppid:9065 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
percpu_rwsem_wait+0x117/0x140 kernel/locking/percpu-rwsem.c:162
__percpu_down_read+0x85/0x160 kernel/locking/percpu-rwsem.c:177
percpu_down_read include/linux/percpu-rwsem.h:65 [inline]
cgroup_threadgroup_change_begin include/linux/cgroup-defs.h:751 [inline]
exit_signals+0x1ce/0x290 kernel/signal.c:2966
do_exit+0x13d/0xa30 kernel/exit.c:827
do_group_exit+0x9b/0xa0 kernel/exit.c:1021
__do_sys_exit_group kernel/exit.c:1032 [inline]
__se_sys_exit_group kernel/exit.c:1030 [inline]
__x64_sys_exit_group+0x12/0x20 kernel/exit.c:1030
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5d8a792cb9
RSP: 002b:00007ffea4b51d78 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5d8a792cb9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f5d8a80d290 R08: ffffffffffffffb8 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d8a80d290
R13: 0000000000000000 R14: 00007f5d8a80dd00 R15: 00007f5d8a763e50
INFO: task syz-executor232:9450 blocked for more than 145 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor232 state:D
stack:14072 pid:9450 ppid:9066 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
percpu_rwsem_wait+0x117/0x140 kernel/locking/percpu-rwsem.c:162
__percpu_down_read+0x85/0x160 kernel/locking/percpu-rwsem.c:177
percpu_down_read include/linux/percpu-rwsem.h:65 [inline]
cgroup_threadgroup_change_begin include/linux/cgroup-defs.h:751 [inline]
exit_signals+0x1ce/0x290 kernel/signal.c:2966
do_exit+0x13d/0xa30 kernel/exit.c:827
do_group_exit+0x9b/0xa0 kernel/exit.c:1021
__do_sys_exit_group kernel/exit.c:1032 [inline]
__se_sys_exit_group kernel/exit.c:1030 [inline]
__x64_sys_exit_group+0x12/0x20 kernel/exit.c:1030
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5d8a792cb9
RSP: 002b:00007ffea4b51d78 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5d8a792cb9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f5d8a80d290 R08: ffffffffffffffb8 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d8a80d290
R13: 0000000000000000 R14: 00007f5d8a80dd00 R15: 00007f5d8a763e50
INFO: task syz-executor232:9451 blocked for more than 145 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor232 state:D stack:14072 pid:9451 ppid:9063 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
percpu_rwsem_wait+0x117/0x140 kernel/locking/percpu-rwsem.c:162
__percpu_down_read+0x85/0x160 kernel/locking/percpu-rwsem.c:177
percpu_down_read include/linux/percpu-rwsem.h:65 [inline]
cgroup_threadgroup_change_begin include/linux/cgroup-defs.h:751 [inline]
exit_signals+0x1ce/0x290 kernel/signal.c:2966
do_exit+0x13d/0xa30 kernel/exit.c:827
do_group_exit+0x9b/0xa0 kernel/exit.c:1021
__do_sys_exit_group kernel/exit.c:1032 [inline]
__se_sys_exit_group kernel/exit.c:1030 [inline]
__x64_sys_exit_group+0x12/0x20 kernel/exit.c:1030
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f5d8a792cb9
RSP: 002b:00007ffea4b51d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5d8a792cb9
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007f5d8a80d290 R08: ffffffffffffffb8 R09: 00000000000000a0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d8a80d290
R13: 0000000000000000 R14: 00007f5d8a80dd00 R15: 00007f5d8a763e50
INFO: task syz-executor232:9452 blocked for more than 146 seconds.
Not tainted 6.4.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor232 state:D stack:14064 pid:9452 ppid:9064 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x6c5/0x1380 kernel/sched/core.c:6669
schedule+0x54/0xc0 kernel/sched/core.c:6745
percpu_rwsem_wait+0x117/0x140 kernel/locking/percpu-rwsem.c:162
__percpu_down_read+0x85/0x160 kernel/locking/percpu-rwsem.c:177
percpu_down_read include/linux/percpu-rwsem.h:65 [inline]
cgroup_threadgroup_change_begin include/linux/cgroup-defs.h:751 [inline]
exit_signals+0x1ce/0x290 kernel/signal.c:2966
do_exit+0x13d/0xa30 kernel/exit.c:827
do_group_exit+0x9b/0xa0 kernel/exit.c:1021