IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
batman_adv: batadv0: Interface activated: batadv_slave_1
IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
INFO: rcu_preempt self-detected stall on CPU
1-...: (10497 ticks this GP) idle=586/140000000000002/0 softirq=22477/22477 fqs=1
(t=10500 jiffies g=4833 c=4832 q=846)
rcu_preempt kthread starved for 10485 jiffies! g4833 c4832 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
rcu_preempt R running task 29152 8 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
schedule_timeout+0x43e/0xe10 kernel/time/timer.c:1746
rcu_gp_kthread+0xbf4/0x1ec0 kernel/rcu/tree.c:2255
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
NMI backtrace for cpu 1
CPU: 1 PID: 10574 Comm: syz-executor.2 Not tainted 4.14.170-syzkaller #0
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+0x142/0x197 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x57/0x94 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x141/0x189 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline]
rcu_dump_cpu_stacks+0x186/0x1d2 kernel/rcu/tree.c:1396
print_cpu_stall kernel/rcu/tree.c:1542 [inline]
check_cpu_stall kernel/rcu/tree.c:1610 [inline]
__rcu_pending kernel/rcu/tree.c:3390 [inline]
rcu_pending kernel/rcu/tree.c:3452 [inline]
rcu_check_callbacks.cold+0x43d/0xd0a kernel/rcu/tree.c:2792
update_process_times+0x31/0x70 kernel/time/timer.c:1590
tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:165
tick_sched_timer+0x43/0x130 kernel/time/tick-sched.c:1223
__run_hrtimer kernel/time/hrtimer.c:1223 [inline]
__hrtimer_run_queues+0x270/0xbc0 kernel/time/hrtimer.c:1287
hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1321
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:slab_alloc_node mm/slab.c:3327 [inline]
RIP: 0010:kmem_cache_alloc_node_trace+0x259/0x770 mm/slab.c:3659
RSP: 0018:ffff8880aed07aa0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000007 RBX: 0000000001090220 RCX: 1ffff1101534399e
RDX: 0000000000000000 RSI: ffff8880a9a1ccf8 RDI: 0000000000000286
RBP: ffff8880aed07b18 R08: ffff8880a9a1c400 R09: ffff8880a9a1ccf0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aa800ac0
R13: ffff8880aa800ac0 R14: ffff8880a84e5b40 R15: 0000000001090220
__do_kmalloc_node mm/slab.c:3681 [inline]
__kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696
__kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
__alloc_skb+0xcf/0x500 net/core/skbuff.c:205
alloc_skb include/linux/skbuff.h:980 [inline]
new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:427 [inline]
aoecmd_cfg+0x180/0x5c0 drivers/block/aoe/aoecmd.c:1392
discover_timer drivers/block/aoe/aoemain.c:44 [inline]
discover_timer+0xcd/0x170 drivers/block/aoe/aoemain.c:21
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:ext4_get_groups_count fs/ext4/ext4.h:2827 [inline]
RIP: 0010:ext4_get_group_desc+0x62/0x2b0 fs/ext4/balloc.c:280
RSP: 0018:ffff8880602ff640 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: ffff88809a066d80 RCX: ffffc9000c04d000
RDX: 1ffff1101340cdb8 RSI: ffffffff81be5fc0 RDI: ffff88809a066dc0
RBP: ffff8880602ff678 R08: 0000000000000422 R09: ffff8880a9a1ccc8
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888215982e40
R13: 000000000000007c R14: ffff888215982e40 R15: 0000000000000002
recently_deleted fs/ext4/ialloc.c:686 [inline]
find_inode_bit.isra.0+0x186/0x4d0 fs/ext4/ialloc.c:730
__ext4_new_inode+0x1285/0x4860 fs/ext4/ialloc.c:922
ext4_create+0x1da/0x4f0 fs/ext4/namei.c:2478
lookup_open+0x11a6/0x1860 fs/namei.c:3241
do_last fs/namei.c:3334 [inline]
path_openat+0x1028/0x3e50 fs/namei.c:3569
do_filp_open+0x18e/0x250 fs/namei.c:3603
do_sys_open+0x2c5/0x430 fs/open.c:1084
SYSC_openat fs/open.c:1111 [inline]
SyS_openat+0x30/0x40 fs/open.c:1105
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45b3b9
RSP: 002b:00007efe982bac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efe982bb6d4 RCX: 000000000045b3b9
RDX: 000000000000275a RSI: 0000000020000100 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000788 R14: 00000000004c8f22 R15: 000000000075bf2c
INFO: rcu_sched detected stalls on CPUs/tasks:
1-...: (10499 ticks this GP) idle=586/140000000000002/0 softirq=22477/22477 fqs=1
(detected by 0, t=10560 jiffies, g=3006, c=3005, q=1)
Sending NMI from CPU 0 to CPUs 1:
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.080 msecs
NMI backtrace for cpu 1
CPU: 1 PID: 10574 Comm: syz-executor.2 Not tainted 4.14.170-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8880a9a1c400 task.stack: ffff8880602f8000
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:362 [inline]
RIP: 0010:rcu_is_watching+0x5e/0xb0 kernel/rcu/tree.c:1130
RSP: 0018:ffff8880aed07600 EFLAGS: 00000803
RAX: dffffc0000000000 RBX: ffff8880aed23940 RCX: 1ffffffff0f817ad
RDX: 0000000000000000 RSI: ffffffff87045300 RDI: ffff8880aed2394c
RBP: ffff8880aed07610 R08: 0000000000000000 R09: ffff8880a9a1cd40
R10: ffff8880a9a1cd20 R11: ffff8880a9a1c400 R12: ffff88809fb1fa80
R13: ffff888091950e40 R14: 0000000000000001 R15: 0000000000000003
FS: 00007efe982bb700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000140 CR3: 0000000091c32000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held+0x81/0xd0 kernel/rcu/update.c:328
kill_fasync fs/fcntl.c:1011 [inline]
kill_fasync+0x34b/0x3d0 fs/fcntl.c:1004
perf_event_wakeup+0x215/0x360 kernel/events/core.c:5561
perf_pending_event+0xb0/0xe0 kernel/events/core.c:5585
irq_work_run_list+0x105/0x190 kernel/irq_work.c:156
irq_work_run+0x52/0xb0 kernel/irq_work.c:171
smp_irq_work_interrupt+0xa8/0x4e0 arch/x86/kernel/irq_work.c:21
irq_work_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:823
RIP: 0010:memcmp+0x48/0xc0 lib/string.c:861
RSP: 0018:ffff8880aed07808 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff09
RAX: 0000000000000000 RBX: ffff8880aed07907 RCX: 0000000000000006
RDX: 0000000000000007 RSI: ffff88807bc2fe2f RDI: ffff8880aed078b0
RBP: ffff8880aed07830 R08: 00000000b61c38be R09: 0000000000000004
R10: 0000000000000000 R11: ffff8880a9a1c400 R12: dffffc0000000000
R13: ffff8880aed07910 R14: 000000000000000c R15: ffff88807bc2fdc0
find_stack lib/stackdepot.c:176 [inline]
depot_save_stack+0x11c/0x410 lib/stackdepot.c:225
save_stack+0xa9/0xd0 mm/kasan/kasan.c:453
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc mm/kasan/kasan.c:551 [inline]
kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:529
kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:489
slab_post_alloc_hook mm/slab.h:442 [inline]
slab_alloc_node mm/slab.c:3333 [inline]
kmem_cache_alloc_node+0x131/0x780 mm/slab.c:3640
__alloc_skb+0x9c/0x500 net/core/skbuff.c:193
alloc_skb include/linux/skbuff.h:980 [inline]
new_skb+0x28/0x1d0 drivers/block/aoe/aoecmd.c:67
aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:427 [inline]
aoecmd_cfg+0x180/0x5c0 drivers/block/aoe/aoecmd.c:1392
discover_timer drivers/block/aoe/aoemain.c:44 [inline]
discover_timer+0xcd/0x170 drivers/block/aoe/aoemain.c:21
call_timer_fn+0x161/0x670 kernel/time/timer.c:1279
expire_timers kernel/time/timer.c:1318 [inline]
__run_timers kernel/time/timer.c:1636 [inline]
__run_timers kernel/time/timer.c:1604 [inline]
run_timer_softirq+0x5b7/0x1520 kernel/time/timer.c:1649
__do_softirq+0x244/0x9a0 kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x160/0x1b0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x146/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:ext4_get_groups_count fs/ext4/ext4.h:2827 [inline]
RIP: 0010:ext4_get_group_desc+0x62/0x2b0 fs/ext4/balloc.c:280
RSP: 0018:ffff8880602ff640 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff10
RAX: 0000000000000000 RBX: ffff88809a066d80 RCX: ffffc9000c04d000
RDX: 1ffff1101340cdb8 RSI: ffffffff81be5fc0 RDI: ffff88809a066dc0
RBP: ffff8880602ff678 R08: 0000000000000422 R09: ffff8880a9a1ccc8
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888215982e40
R13: 000000000000007c R14: ffff888215982e40 R15: 0000000000000002
recently_deleted fs/ext4/ialloc.c:686 [inline]
find_inode_bit.isra.0+0x186/0x4d0 fs/ext4/ialloc.c:730
__ext4_new_inode+0x1285/0x4860 fs/ext4/ialloc.c:922
ext4_create+0x1da/0x4f0 fs/ext4/namei.c:2478
lookup_open+0x11a6/0x1860 fs/namei.c:3241
do_last fs/namei.c:3334 [inline]
path_openat+0x1028/0x3e50 fs/namei.c:3569
do_filp_open+0x18e/0x250 fs/namei.c:3603
do_sys_open+0x2c5/0x430 fs/open.c:1084
SYSC_openat fs/open.c:1111 [inline]
SyS_openat+0x30/0x40 fs/open.c:1105
do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45b3b9
RSP: 002b:00007efe982bac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007efe982bb6d4 RCX: 000000000045b3b9
RDX: 000000000000275a RSI: 0000000020000100 RDI: ffffffffffffff9c
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000788 R14: 00000000004c8f22 R15: 000000000075bf2c
Code: 48 c1 e9 03 80 3c 11 00 75 5d 48 03 1c c5 60 bd c0 87 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 0c 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 43 0c d1
rcu_sched kthread starved for 10546 jiffies! g3006 c3005 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
rcu_sched R running task 29776 9 2 0x80000000
Call Trace:
context_switch kernel/sched/core.c:2808 [inline]
__schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
schedule+0x92/0x1c0 kernel/sched/core.c:3428
schedule_timeout+0x43e/0xe10 kernel/time/timer.c:1746
rcu_gp_kthread+0xbf4/0x1ec0 kernel/rcu/tree.c:2255
kthread+0x319/0x430 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404