batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready
batman_adv: batadv0: Interface activated: batadv_slave_1
INFO: rcu_preempt self-detected stall on CPU
1-...: (1 GPs behind) idle=d4a/140000000000002/0 softirq=13248/13251 fqs=0
(t=10500 jiffies g=1691 c=1690 q=607)
rcu_preempt kthread starved for 10500 jiffies! g1691 c1690 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
rcu_preempt R running task 29984 8 2 0x80000000
Call Trace:
schedule+0x8d/0x1b0 kernel/sched/core.c:3428
schedule_timeout+0x43c/0xe40 kernel/time/timer.c:1746
rcu_gp_kthread+0xb8e/0x1ce0 kernel/rcu/tree.c:2255
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
NMI backtrace for cpu 1
CPU: 1 PID: 7657 Comm: syz-executor614 Not tainted 4.14.174-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+0x13e/0x194 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x139/0x17e lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:158 [inline]
rcu_dump_cpu_stacks+0x16d/0x1b8 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+0x490/0xdaa kernel/rcu/tree.c:2792
update_process_times+0x29/0x60 kernel/time/timer.c:1590
tick_sched_handle+0x7d/0x150 kernel/time/tick-sched.c:165
tick_sched_timer+0x3e/0x120 kernel/time/tick-sched.c:1223
__run_hrtimer kernel/time/hrtimer.c:1223 [inline]
__hrtimer_run_queues+0x25c/0xbb0 kernel/time/hrtimer.c:1287
hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:queued_write_lock_slowpath+0x80/0x1d0 kernel/locking/qrwlock.c:130
RSP: 0018:ffff8880aeb07810 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 00000000000000ff RBX: ffffffff8877d6b0 RCX: 00000000bc43e600
RDX: 0000000000000000 RSI: ffff88808dce4f78 RDI: ffffffff8877d6b0
RBP: ffffffff8877d6b4 R08: 0000000000006816 R09: ffffffff8a08f930
R10: ffff88808dce4f78 R11: ffff88808dce4680 R12: fffffbfff10efad6
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888091d2acc0
queued_write_lock include/asm-generic/qrwlock.h:134 [inline]
do_raw_write_lock+0xc2/0x1d0 kernel/locking/spinlock_debug.c:203
neigh_forced_gc net/core/neighbour.c:176 [inline]
neigh_alloc net/core/neighbour.c:315 [inline]
__neigh_create+0xb27/0x1980 net/core/neighbour.c:499
ip6_finish_output2+0xa8e/0x2150 net/ipv6/ip6_output.c:117
ip6_finish_output+0x4d9/0xaf0 net/ipv6/ip6_output.c:154
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip6_output+0x1c9/0x650 net/ipv6/ip6_output.c:171
dst_output include/net/dst.h:462 [inline]
NF_HOOK include/linux/netfilter.h:250 [inline]
ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483
ndisc_send_rs+0x125/0x630 net/ipv6/ndisc.c:677
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3761
call_timer_fn+0x14a/0x650 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+0x52a/0x1390 kernel/time/timer.c:1649
__do_softirq+0x254/0x9bf kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x15b/0x1a0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x50 kernel/kcov.c:65
RSP: 0018:ffff888095537a98 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: ffff88808dce4680 RBX: ffff888095537be0 RCX: ffff88808c386c80
RDX: 0000000000000000 RSI: ffff888095537be0 RDI: ffff88808c386c80
RBP: ffff88808c386c80 R08: 0000000000000000 R09: 0000000000000000
R10: 1ffff11012aa6ff9 R11: 0000000000000000 R12: ffff88808dce4680
R13: 0000000000000000 R14: 1ffff11012aa6f72 R15: 00000000006de000
get_futex_key_refs.isra.0+0x17/0x90 kernel/futex.c:446
get_futex_key+0xbc3/0x1390 kernel/futex.c:541
futex_wake+0xc7/0x3d0 kernel/futex.c:1667
do_futex+0x264/0x1840 kernel/futex.c:3907
SYSC_futex kernel/futex.c:3963 [inline]
SyS_futex+0x1e8/0x2c0 kernel/futex.c:3931
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4494a9
RSP: 002b:00007f35dd3b3db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000006dec28 RCX: 00000000004494a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dec2c
RBP: 00000000006dec20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec2c
R13: 00007ffce9ca227f R14: 00007f35dd3b49c0 R15: 0000000000000000
INFO: rcu_sched detected stalls on CPUs/tasks:
1-...: (1 GPs behind) idle=d4a/140000000000001/0 softirq=13248/13251 fqs=0
(detected by 0, t=10557 jiffies, g=1112, c=1111, q=3)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7657 Comm: syz-executor614 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88808dce4680 task.stack: ffff888095530000
RIP: 0010:debug_lockdep_rcu_enabled.part.0+0x26/0x50 kernel/rcu/update.c:300
RSP: 0018:ffff8880aeb07578 EFLAGS: 00000803
RAX: dffffc0000000000 RBX: ffff88808dce4680 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88808dce4efc
RBP: ffff88808b932a48 R08: 0000000000000001 R09: 0000000000000005
R10: 0000000000000082 R11: ffff88808dce4680 R12: 0000000000000001
R13: ffff8880aeb25b40 R14: dffffc0000000000 R15: 0000000000000001
FS: 00007f35dd3b4700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200000ac CR3: 000000007ff87000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
debug_lockdep_rcu_enabled kernel/rcu/update.c:299 [inline]
rcu_read_lock_sched_held+0x79/0x130 kernel/rcu/update.c:109
trace_hrtimer_start include/trace/events/timer.h:187 [inline]
debug_activate kernel/time/hrtimer.c:448 [inline]
enqueue_hrtimer+0x2d0/0x3b0 kernel/time/hrtimer.c:844
__run_hrtimer kernel/time/hrtimer.c:1238 [inline]
__hrtimer_run_queues+0x843/0xbb0 kernel/time/hrtimer.c:1287
hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:queued_write_lock_slowpath+0x80/0x1d0 kernel/locking/qrwlock.c:130
RSP: 0018:ffff8880aeb07810 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 00000000000000ff RBX: ffffffff8877d6b0 RCX: 00000000bc43e600
RDX: 0000000000000000 RSI: ffff88808dce4f78 RDI: ffffffff8877d6b0
RBP: ffffffff8877d6b4 R08: 0000000000006816 R09: ffffffff8a08f930
R10: ffff88808dce4f78 R11: ffff88808dce4680 R12: fffffbfff10efad6
R13: 0000000000000000 R14: 0000000000000001 R15: ffff888091d2acc0
queued_write_lock include/asm-generic/qrwlock.h:134 [inline]
do_raw_write_lock+0xc2/0x1d0 kernel/locking/spinlock_debug.c:203
neigh_forced_gc net/core/neighbour.c:176 [inline]
neigh_alloc net/core/neighbour.c:315 [inline]
__neigh_create+0xb27/0x1980 net/core/neighbour.c:499
ip6_finish_output2+0xa8e/0x2150 net/ipv6/ip6_output.c:117
ip6_finish_output+0x4d9/0xaf0 net/ipv6/ip6_output.c:154
NF_HOOK_COND include/linux/netfilter.h:239 [inline]
ip6_output+0x1c9/0x650 net/ipv6/ip6_output.c:171
dst_output include/net/dst.h:462 [inline]
NF_HOOK include/linux/netfilter.h:250 [inline]
ndisc_send_skb+0xb56/0x11e0 net/ipv6/ndisc.c:483
ndisc_send_rs+0x125/0x630 net/ipv6/ndisc.c:677
addrconf_rs_timer+0x289/0x5a0 net/ipv6/addrconf.c:3761
call_timer_fn+0x14a/0x650 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+0x52a/0x1390 kernel/time/timer.c:1649
__do_softirq+0x254/0x9bf kernel/softirq.c:288
invoke_softirq kernel/softirq.c:368 [inline]
irq_exit+0x15b/0x1a0 kernel/softirq.c:409
exiting_irq arch/x86/include/asm/apic.h:648 [inline]
smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102
apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792
RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x50 kernel/kcov.c:65
RSP: 0018:ffff888095537a98 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10
RAX: ffff88808dce4680 RBX: ffff888095537be0 RCX: ffff88808c386c80
RDX: 0000000000000000 RSI: ffff888095537be0 RDI: ffff88808c386c80
RBP: ffff88808c386c80 R08: 0000000000000000 R09: 0000000000000000
R10: 1ffff11012aa6ff9 R11: 0000000000000000 R12: ffff88808dce4680
R13: 0000000000000000 R14: 1ffff11012aa6f72 R15: 00000000006de000
get_futex_key_refs.isra.0+0x17/0x90 kernel/futex.c:446
get_futex_key+0xbc3/0x1390 kernel/futex.c:541
futex_wake+0xc7/0x3d0 kernel/futex.c:1667
do_futex+0x264/0x1840 kernel/futex.c:3907
SYSC_futex kernel/futex.c:3963 [inline]
SyS_futex+0x1e8/0x2c0 kernel/futex.c:3931
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4494a9
RSP: 002b:00007f35dd3b3db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000006dec28 RCX: 00000000004494a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00000000006dec2c
RBP: 00000000006dec20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dec2c
R13: 00007ffce9ca227f R14: 00007f35dd3b49c0 R15: 0000000000000000
Code: 65 fe ff ff 90 48 b8 00 00 00 00 00 fc ff df 53 65 48 8b 1c 25 40 ee 01 00 48 8d bb 7c 08 00 00 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 0f 8b 93 7c 08
rcu_sched kthread starved for 10558 jiffies! g1112 c1111 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
rcu_sched R running task 29984 9 2 0x80000000
Call Trace:
schedule+0x8d/0x1b0 kernel/sched/core.c:3428
schedule_timeout+0x43c/0xe40 kernel/time/timer.c:1746
rcu_gp_kthread+0xb8e/0x1ce0 kernel/rcu/tree.c:2255
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404