Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
sctp: [Deprecated]: syz-executor6 (pid 14881) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
kworker/dying (762) used greatest stack depth: 10072 bytes left
INFO: task kworker/0:0:3 blocked for more than 120 seconds.
Not tainted 4.16.0-rc6+ #282
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/0:0 D20928 3 2 0x80000000
Workqueue: cgroup_destroy css_killed_work_fn
Call Trace:
context_switch kernel/sched/core.c:2862 [inline]
__schedule+0x8fb/0x1ec0 kernel/sched/core.c:3440
schedule+0xf5/0x430 kernel/sched/core.c:3499
schedule_preempt_disabled+0x10/0x20 kernel/sched/core.c:3557
__mutex_lock_common kernel/locking/mutex.c:833 [inline]
__mutex_lock+0xaad/0x1a80 kernel/locking/mutex.c:893
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
memcg_deactivate_kmem_caches+0x2f/0xf0 mm/slab_common.c:750
memcg_offline_kmem.part.56+0x58/0x340 mm/memcontrol.c:2817
memcg_offline_kmem mm/memcontrol.c:4276 [inline]
mem_cgroup_css_offline+0x343/0x510 mm/memcontrol.c:4272
offline_css kernel/cgroup/cgroup.c:4702 [inline]
css_killed_work_fn+0x121/0x5c0 kernel/cgroup/cgroup.c:4970
process_one_work+0xc47/0x1bb0 kernel/workqueue.c:2113
worker_thread+0x223/0x1990 kernel/workqueue.c:2247
kthread+0x33c/0x400 kernel/kthread.c:238
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:406
Showing all locks held in the system:
5 locks held by kworker/0:0/3:
#0: ((wq_completion)"cgroup_destroy"){+.+.}, at: [<00000000b262bf7c>] work_static include/linux/workqueue.h:198 [inline]
#0: ((wq_completion)"cgroup_destroy"){+.+.}, at: [<00000000b262bf7c>] set_work_data kernel/workqueue.c:619 [inline]
#0: ((wq_completion)"cgroup_destroy"){+.+.}, at: [<00000000b262bf7c>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: ((wq_completion)"cgroup_destroy"){+.+.}, at: [<00000000b262bf7c>] process_one_work+0xb12/0x1bb0 kernel/workqueue.c:2084
#1: ((work_completion)(&css->destroy_work)){+.+.}, at: [<00000000a86eadf6>] process_one_work+0xb89/0x1bb0 kernel/workqueue.c:2088
#2: (cgroup_mutex){+.+.}, at: [<000000007ff09313>] css_killed_work_fn+0x93/0x5c0 kernel/cgroup/cgroup.c:4967
#3: (cpu_hotplug_lock.rw_sem){++++}, at: [<000000009600f32b>] get_online_cpus include/linux/cpu.h:124 [inline]
#3: (cpu_hotplug_lock.rw_sem){++++}, at: [<000000009600f32b>] memcg_deactivate_kmem_caches+0x21/0xf0 mm/slab_common.c:747
#4: (slab_mutex){+.+.}, at: [<000000009d057d7c>] memcg_deactivate_kmem_caches+0x2f/0xf0 mm/slab_common.c:750
2 locks held by khungtaskd/801:
#0: (rcu_read_lock){....}, at: [<00000000f4ea5923>] check_hung_uninterruptible_tasks kernel/hung_task.c:175 [inline]
#0: (rcu_read_lock){....}, at: [<00000000f4ea5923>] watchdog+0x1c5/0xd60 kernel/hung_task.c:249
#1: (tasklist_lock){.+.+}, at: [<0000000074cfa5b1>] debug_show_all_locks+0xd3/0x3d0 kernel/locking/lockdep.c:4470
4 locks held by kworker/0:2/1784:
#0: ((wq_completion)"memcg_kmem_cache"){+.+.}, at: [<00000000b262bf7c>] work_static include/linux/workqueue.h:198 [inline]
#0: ((wq_completion)"memcg_kmem_cache"){+.+.}, at: [<00000000b262bf7c>] set_work_data kernel/workqueue.c:619 [inline]
#0: ((wq_completion)"memcg_kmem_cache"){+.+.}, at: [<00000000b262bf7c>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
#0: ((wq_completion)"memcg_kmem_cache"){+.+.}, at: [<00000000b262bf7c>] process_one_work+0xb12/0x1bb0 kernel/workqueue.c:2084
#1: ((work_completion)(&cw->work)){+.+.}, at: [<00000000a86eadf6>] process_one_work+0xb89/0x1bb0 kernel/workqueue.c:2088
#2: (cpu_hotplug_lock.rw_sem){++++}, at: [<00000000f5fb22bc>] get_online_cpus include/linux/cpu.h:124 [inline]
#2: (cpu_hotplug_lock.rw_sem){++++}, at: [<00000000f5fb22bc>] memcg_create_kmem_cache+0x16/0x170 mm/slab_common.c:619
#3: (slab_mutex){+.+.}, at: [<00000000f25c5ffc>] memcg_create_kmem_cache+0x24/0x170 mm/slab_common.c:622
2 locks held by getty/4176:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4177:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4178:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4179:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4180:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4181:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
2 locks held by getty/4182:
#0: (&tty->ldisc_sem){++++}, at: [<000000001c079c8e>] ldsem_down_read+0x37/0x40 drivers/tty/tty_ldsem.c:365
#1: (&ldata->atomic_read_lock){+.+.}, at: [<00000000b6be7937>] n_tty_read+0x2ef/0x1a40 drivers/tty/n_tty.c:2131
1 lock held by syz-fuzzer/4197:
#0: (&mm->mmap_sem){++++}, at: [<0000000050656b32>] SYSC_madvise mm/madvise.c:827 [inline]
#0: (&mm->mmap_sem){++++}, at: [<0000000050656b32>] SyS_madvise+0x18f/0x13d0 mm/madvise.c:791
1 lock held by syz-fuzzer/4201:
#0: (&mm->mmap_sem){++++}, at: [<0000000025483daa>] __do_page_fault+0x84b/0xc90 arch/x86/mm/fault.c:1358
3 locks held by syz-fuzzer/24365:
#0: (&mm->mmap_sem){++++}, at: [<000000007a45267c>] __do_page_fault+0x32d/0xc90 arch/x86/mm/fault.c:1351
#1: (&ei->i_mmap_sem){++++}, at: [<000000004611eeda>] ext4_filemap_fault+0x7a/0xad fs/ext4/inode.c:6176
#2: (pcpu_drain_mutex){+.+.}, at: [<00000000136c9dc9>] drain_all_pages+0x94/0x620 mm/page_alloc.c:2528
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 801 Comm: khungtaskd Not tainted 4.16.0-rc6+ #282
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x24d lib/dump_stack.c:53
nmi_cpu_backtrace+0x1d2/0x210 lib/nmi_backtrace.c:103
nmi_trigger_cpumask_backtrace+0x123/0x180 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline]
check_hung_task kernel/hung_task.c:132 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:190 [inline]
watchdog+0x90c/0xd60 kernel/hung_task.c:249
kthread+0x33c/0x400 kernel/kthread.c:238
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:406
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1436 Comm: kswapd0 Not tainted 4.16.0-rc6+ #282
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline]
RIP: 0010:lookup_chain_cache kernel/locking/lockdep.c:2314 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:2334 [inline]
RIP: 0010:validate_chain kernel/locking/lockdep.c:2388 [inline]
RIP: 0010:__lock_acquire+0x1322/0x3e00 kernel/locking/lockdep.c:3431
RSP: 0000:ffff8801d4e3f060 EFLAGS: 00000046
RAX: ffff8801d4e3f1a0 RBX: ffff8801d4e2cf60 RCX: 1ffff1003a9c7e34
RDX: dffffc0000000000 RSI: 00000000912bdaac RDI: 0000000000000000
RBP: ffff8801d4e3f3f0 R08: 1ffff1003a9c7de9 R09: 0000000000000004
R10: 0000000000000000 R11: 0000000000000003 R12: 00000000000044c0
R13: 9806f7cfc95a4dd1 R14: ffffffff87b2f968 R15: ffff8801d4e2c6c0
FS: 0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001768060 CR3: 0000000006e22006 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:3920
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144
spin_lock include/linux/spinlock.h:310 [inline]
__list_lru_count_one mm/list_lru.c:171 [inline]
list_lru_count_one+0x91/0x1f0 mm/list_lru.c:182
list_lru_shrink_count include/linux/list_lru.h:117 [inline]
super_cache_count+0x10d/0x280 fs/super.c:133
do_shrink_slab mm/vmscan.c:310 [inline]
shrink_slab.part.46+0x30c/0xe80 mm/vmscan.c:475
shrink_slab+0x9d/0xb0 mm/vmscan.c:442
shrink_node+0x51e/0xf70 mm/vmscan.c:2556
kswapd_shrink_node mm/vmscan.c:3212 [inline]
balance_pgdat mm/vmscan.c:3318 [inline]
kswapd+0xc27/0x1e40 mm/vmscan.c:3537
kthread+0x33c/0x400 kernel/kthread.c:238
ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:406
Code: 00 0f 85 d7 25 00 00 48 8d 85 b0 fd ff ff 48 ba 00 00 00 00 00 fc ff df 4e 8b 34 e5 00 a1 0a 88 48 89 c1 48 c1 e9 03 80 3c 11 00 <0f> 85 84 25 00 00 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 4d