Total swap = 0kB
1965979 pages RAM
0 pages HighMem/MovableOnly
331301 pages reserved
0 pages cma reserved
INFO: task kworker/u4:2:48 blocked for more than 140 seconds.
      Not tainted 4.8.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:2    D ffff88012b267818 24896    48      2 0x00000000
Workqueue: events_unbound fsnotify_mark_destroy_workfn
 ffff88012b267818 ffff88011621e200 ffff88012c022f90 ffff88012c022f68
 ffff88012b31e488 ffffffff00000000 ffff88012c022618 ffff88012b31ea40
 ffff880123d52540 ffff88012b31e480 ffff88012b260000 ffffed002564c001
Call Trace:
 [<ffffffff85dbd4fa>] schedule+0x9a/0x1c0 kernel/sched/core.c:3405
 [<ffffffff85dcad38>] schedule_timeout+0x688/0xc30 kernel/time/timer.c:1724
 [<ffffffff85dc0882>] do_wait_for_common kernel/sched/completion.c:75 [inline]
 [<ffffffff85dc0882>] __wait_for_common kernel/sched/completion.c:93 [inline]
 [<ffffffff85dc0882>] wait_for_common kernel/sched/completion.c:101 [inline]
 [<ffffffff85dc0882>] wait_for_completion+0x1f2/0x2d0 kernel/sched/completion.c:122
 [<ffffffff81489ec5>] __synchronize_srcu+0x245/0x380 kernel/rcu/srcu.c:448
 [<ffffffff8148a01e>] synchronize_srcu+0x1e/0x40 kernel/rcu/srcu.c:492
 [<ffffffff81889dd1>] fsnotify_mark_destroy_list+0xf1/0x210 fs/notify/mark.c:551
 [<ffffffff81889ef9>] fsnotify_mark_destroy_workfn+0x9/0x10 fs/notify/mark.c:561
 [<ffffffff8139b9d2>] process_one_work+0x6a2/0x1580 kernel/workqueue.c:2096
 [<ffffffff8139c987>] worker_thread+0xd7/0xf10 kernel/workqueue.c:2230
 [<ffffffff813ad1c9>] kthread+0x209/0x2d0 kernel/kthread.c:209
 [<ffffffff85dcd40f>] ret_from_fork+0x1f/0x40 arch/x86/entry/entry_64.S:393
2 locks held by kworker/u4:2/48:
 #0:  ("events_unbound"){.+.+.+}, at: [<ffffffff8139b8f3>] work_static include/linux/workqueue.h:186 [inline]
 #0:  ("events_unbound"){.+.+.+}, at: [<ffffffff8139b8f3>] set_work_data kernel/workqueue.c:615 [inline]
 #0:  ("events_unbound"){.+.+.+}, at: [<ffffffff8139b8f3>] set_work_pool_and_clear_pending kernel/workqueue.c:642 [inline]
 #0:  ("events_unbound"){.+.+.+}, at: [<ffffffff8139b8f3>] process_one_work+0x5c3/0x1580 kernel/workqueue.c:2089
 #1:  ((reaper_work).work){+.+...}, at: [<ffffffff8139b92c>] process_one_work+0x5fc/0x1580 kernel/workqueue.c:2093
Sending NMI to all CPUs:
NMI backtrace for cpu 0
CPU: 0 PID: 994 Comm: khungtaskd Not tainted 4.8.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88012936c0c0 task.stack: ffff880129b60000
RIP: 0010:[<ffffffff812709a6>]  [<ffffffff812709a6>] arch_static_branch arch/x86/include/asm/msr.h:121 [inline]
RIP: 0010:[<ffffffff812709a6>]  [<ffffffff812709a6>] static_key_false include/linux/jump_label.h:125 [inline]
RIP: 0010:[<ffffffff812709a6>]  [<ffffffff812709a6>] native_write_msr+0x6/0x30 arch/x86/include/asm/msr.h:125
RSP: 0000:ffff880129b67c90  EFLAGS: 00000086
RAX: 0000000000000400 RBX: 0000000000000400 RCX: 0000000000000830
RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000830
RBP: ffff880129b67ca8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: fffffbfff0f11340
R13: ffffffff8788ca20 R14: 0000000000080000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88012c000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000045998a CR3: 000000010d525000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81264b2f ffff880129b67ca8 0000000000000007 ffff880129b67d10
 ffffffff81264cea ffffffff86b4abd3 ffffffff00000010 0000000000000286
 0000000229b67d00 0000000000000000 0000000000000000 ffffffff86ead980
Call Trace:
 [<ffffffff81264cea>] __x2apic_send_IPI_mask+0x19a/0x2d0 arch/x86/kernel/apic/x2apic_phys.c:62
 [<ffffffff81264e7e>] x2apic_send_IPI_mask+0xe/0x10 arch/x86/kernel/apic/x2apic_cluster.c:87
 [<ffffffff8125a40b>] nmi_raise_cpu_backtrace+0x5b/0x70 arch/x86/kernel/apic/hw_nmi.c:32
 [<ffffffff82d14d48>] nmi_trigger_all_cpu_backtrace+0x148/0x160 lib/nmi_backtrace.c:54
 [<ffffffff8125a4a4>] arch_trigger_all_cpu_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff8155c682>] trigger_all_cpu_backtrace include/linux/nmi.h:41 [inline]
 [<ffffffff8155c682>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff8155c682>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff8155c682>] watchdog+0x662/0xa00 kernel/hung_task.c:239
 [<ffffffff813ad1c9>] kthread+0x209/0x2d0 kernel/kthread.c:209
 [<ffffffff85dcd40f>] ret_from_fork+0x1f/0x40 arch/x86/entry/entry_64.S:393
Code: c3 0f 21 c8 5d c3 0f 21 d0 5d c3 0f 21 d8 5d c3 0f 21 f0 5d c3 0f 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 00 89 f9 89 f0 0f 30 <0f> 1f 44 00 00 c3 89 f0 48 89 d6 55 31 d2 48 c1 e6 20 48 89 e5 
NMI backtrace for cpu 1
CPU: 1 PID: 2259 Comm: kworker/u4:4 Not tainted 4.8.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_dat_purge
task: ffff880123d52540 task.stack: ffff880124230000
RIP: 0010:[<ffffffff8135bb2e>]  [<ffffffff8135bb2e>] preempt_count arch/x86/include/asm/preempt.h:22 [inline]
RIP: 0010:[<ffffffff8135bb2e>]  [<ffffffff8135bb2e>] __local_bh_disable_ip+0xe/0x1c0 kernel/softirq.c:99
RSP: 0018:ffff880124237b88  EFLAGS: 00000282
RAX: ffff880121d4cc80 RBX: 0000000000000201 RCX: 0000000000000c78
RDX: ffff880116385880 RSI: 0000000000000201 RDI: ffffffff85c92527
RBP: ffff880124237ba0 R08: 0000000000000006 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88010f825e88
R13: ffffffff85c92527 R14: ffff8801163864f8 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000625208 CR3: 0000000104529000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff88010f825e88 ffff88010f825e88 ffff88011de34c00 ffff880124237bc0
 ffffffff85dcc33a ffffffff85dcc4e0 ffffffff85c90a00 ffff880124237c20
 ffffffff85c92527 0000000000000286 ffffed0023c67d46 ffff88011e33ea30
Call Trace:
 [<ffffffff85dcc33a>] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 [<ffffffff85dcc33a>] _raw_spin_lock_bh+0x1a/0x50 kernel/locking/spinlock.c:175
 [<ffffffff85c92527>] spin_lock_bh include/linux/spinlock.h:307 [inline]
 [<ffffffff85c92527>] __batadv_dat_purge.isra.8+0xe7/0x2f0 net/batman-adv/distributed-arp-table.c:130
 [<ffffffff85c92748>] batadv_dat_purge+0x18/0x30 net/batman-adv/distributed-arp-table.c:161
 [<ffffffff8139b9d2>] process_one_work+0x6a2/0x1580 kernel/workqueue.c:2096
 [<ffffffff8139c987>] worker_thread+0xd7/0xf10 kernel/workqueue.c:2230
 [<ffffffff813ad1c9>] kthread+0x209/0x2d0 kernel/kthread.c:209
 [<ffffffff85dcd40f>] ret_from_fork+0x1f/0x40 arch/x86/entry/entry_64.S:393
Code: ff ff ff e8 15 e6 3f 00 e9 41 ff ff ff e8 0b e6 3f 00 eb 87 e8 04 e6 3f 00 eb b5 66 90 55 48 89 e5 41 55 49 89 fd 41 54 53 89 f3 <65> 8b 05 1b a9 cb 7e a9 00 00 0f 00 0f 85 2b 01 00 00 48 c7 c7