INFO: task khugepaged:34 blocked for more than 143 seconds.
Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:khugepaged state:D stack:28168 pid:34 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
__flush_work+0x595/0xb60 kernel/workqueue.c:3189
__lru_add_drain_all+0x1bf/0x6a0 mm/swap.c:897
khugepaged_do_scan mm/khugepaged.c:2599 [inline]
khugepaged+0x105/0x1740 mm/khugepaged.c:2668
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:23:9609 blocked for more than 144 seconds.
Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:23 state:D stack:27256 pid:9609 ppid:2 flags:0x00004000
Workqueue: events_unbound fsnotify_connector_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
__synchronize_srcu+0x1be/0x2c0 kernel/rcu/srcutree.c:1360
fsnotify_connector_destroy_workfn+0x4d/0xa0 fs/notify/mark.c:208
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:20:29552 blocked for more than 145 seconds.
Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:20 state:D stack:27296 pid:29552 ppid:2 flags:0x00004000
Workqueue: events_unbound fsnotify_mark_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
__synchronize_srcu+0x1be/0x2c0 kernel/rcu/srcutree.c:1360
fsnotify_mark_destroy_workfn+0x101/0x3c0 fs/notify/mark.c:898
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task dhcpcd:9663 blocked for more than 147 seconds.
Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:29016 pid:9663 ppid:4666 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
synchronize_rcu_expedited+0x5d4/0x770 kernel/rcu/tree_exp.h:1007
synchronize_rcu+0x2f1/0x3a0 kernel/rcu/tree.c:3499
synchronize_net+0x4e/0x60 net/core/dev.c:10791
__unregister_prot_hook+0x4b3/0x5c0 net/packet/af_packet.c:380
packet_do_bind+0x93f/0xe30 net/packet/af_packet.c:3235
packet_bind+0x15f/0x1c0 net/packet/af_packet.c:3319
__sys_bind+0x1ed/0x260 net/socket.c:1803
__do_sys_bind net/socket.c:1814 [inline]
__se_sys_bind net/socket.c:1812 [inline]
__x64_sys_bind+0x73/0xb0 net/socket.c:1812
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9232f7a677
RSP: 002b:00007fff6098b638 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 000055d26f706ca3 RCX: 00007f9232f7a677
RDX: 0000000000000014 RSI: 00007fff6098b648 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000055d26fb53e30 R09: 0000000000200000
R10: 000000000000006d R11: 0000000000000217 R12: 000055d26fb505c0
R13: 000055d26fb53768 R14: 00007fff609abf2c R15: 000055d26fb53734
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8c7984b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8c7981b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8c7990c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6559
1 lock held by khugepaged/34:
#0: ffffffff8c89a608 (lock#3){+.+.}-{3:3}, at: __lru_add_drain_all+0x62/0x6a0 mm/swap.c:852
2 locks held by getty/4755:
#0: ffff888028109098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015c02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
3 locks held by kworker/0:6/5069:
2 locks held by kworker/u4:23/9609:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc9000376fdb0 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
2 locks held by kworker/u4:20/29552:
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:643 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:670 [inline]
#0: ffff888012479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 kernel/workqueue.c:2376
#1: ffffc90014da7db0 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 kernel/workqueue.c:2380
2 locks held by dhcpcd/9663:
#0: ffff8880580d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880580d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3202
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
2 locks held by dhcpcd/10013:
#0: ffff88807c570130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff88807c570130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3202
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
#1: ffffffff8c7a4538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
1 lock held by dhcpcd/10014:
#0: ffff88805cd8e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff88805cd8e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3202
1 lock held by dhcpcd/10032:
#0: ffff88802f720130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff88802f720130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3202
1 lock held by dhcpcd/10033:
#0: ffff8881b616c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8881b616c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3202
1 lock held by dhcpcd/10038:
#0: ffff888027a22130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff888027a22130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xe30 net/packet/af_packet.c:3202
1 lock held by syz-executor.5/10114:
1 lock held by syz-executor.4/10119:
1 lock held by syz-executor.3/10124:
1 lock held by syz-executor.2/10127:
1 lock held by syz-executor.1/10130:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5069 Comm: kworker/0:6 Not tainted 6.4.0-rc4-syzkaller-00031-g8b817fded42d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: events drain_vmap_area_work
RIP: 0010:unwind_next_frame+0x17/0x1e30 arch/x86/kernel/unwind_orc.c:441
Code: 67 ff ff ff e8 ca 4c 9e 00 e9 3a ff ff ff 0f 1f 44 00 00 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 48 89 fa 41 57 48 c1 ea 03 <41> 56 41 55 49 89 fd 41 54 55 53 48 83 ec 38 0f b6 04 02 84 c0 74
RSP: 0018:ffffc900046af798 EFLAGS: 00000216
RAX: dffffc0000000000 RBX: ffffffff81726500 RCX: 0000000000000000
RDX: 1ffff920008d5ef5 RSI: ffffffff81c2eecc RDI: ffffc900046af7a8
RBP: ffffc900046af830 R08: 0000000000000001 R09: ffffc900046afae8
R10: ffffc900046af7a8 R11: 0000000000094001 R12: ffffc900046af860
R13: 0000000000000000 R14: ffff888024589dc0 R15: 00000180f60be782
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c421000 CR3: 00000001d0040000 CR4: 0000000000350ef0
Call Trace:
arch_stack_walk+0x81/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x90/0xc0 kernel/stacktrace.c:122
save_stack+0x151/0x1e0 mm/page_owner.c:128
__reset_page_owner+0x56/0x170 mm/page_owner.c:149
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1302 [inline]
free_unref_page_prepare+0x62e/0xcb0 mm/page_alloc.c:2564
free_unref_page+0x33/0x370 mm/page_alloc.c:2659
kasan_depopulate_vmalloc_pte+0x60/0x80 mm/kasan/shadow.c:427
apply_to_pte_range mm/memory.c:2584 [inline]
apply_to_pmd_range mm/memory.c:2628 [inline]
apply_to_pud_range mm/memory.c:2664 [inline]
apply_to_p4d_range mm/memory.c:2700 [inline]
__apply_to_page_range+0x68c/0x1030 mm/memory.c:2734
kasan_release_vmalloc+0xab/0xc0 mm/kasan/shadow.c:544
__purge_vmap_area_lazy+0x886/0x1e60 mm/vmalloc.c:1771
drain_vmap_area_work+0x54/0xd0 mm/vmalloc.c:1804
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308