rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10566 ticks this GP) idle=d65/1/0x4000000000000000 softirq=24837/24839 fqs=2885
(t=10502 jiffies g=36745 q=500)
rcu: rcu_preempt kthread starved for 4726 jiffies! g36745 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:28664 pid: 14 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0xa94/0x4910 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1963
rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2136
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:115 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:556
NMI backtrace for cpu 0
CPU: 0 PID: 7666 Comm: syz-executor.3 Not tainted 5.17.0-rc5-syzkaller-00006-g917bbdb107f8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
rcu_pending kernel/rcu/tree.c:3919 [inline]
rcu_sched_clock_irq.cold+0x402/0x755 kernel/rcu/tree.c:2617
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:202 [inline]
RIP: 0010:atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:543 [inline]
RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:82 [inline]
RIP: 0010:do_raw_spin_lock+0x132/0x2b0 kernel/locking/spinlock_debug.c:115
Code: 00 00 00 00 e8 5f 55 62 00 be 04 00 00 00 48 8d 7c 24 28 e8 50 55 62 00 8b 44 24 28 ba 01 00 00 00 89 44 24 04 f0 0f b1 55 00 <0f> 85 91 00 00 00 65 44 8b 35 08 ee a3 7e 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc9000a296f58 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff92001452dec RCX: ffffffff815e2ba0
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc9000a296f80
RBP: ffff88801d696a80 R08: 0000000000000001 R09: 0000000000000003
R10: fffff52001452df0 R11: 0000000000000000 R12: ffff88801d696a88
R13: ffff88801d696a90 R14: 00000000000001aa R15: dffffc0000000000
spin_lock_bh include/linux/spinlock.h:354 [inline]
batadv_tt_local_purge+0x114/0x370 net/batman-adv/translation-table.c:1355
batadv_tt_local_resize_to_mtu+0x8e/0x130 net/batman-adv/translation-table.c:3957
batadv_hardif_activate_interface.part.0.cold+0x65/0x1ba net/batman-adv/hard-interface.c:651
batadv_hardif_activate_interface net/batman-adv/hard-interface.c:742 [inline]
batadv_hardif_enable_interface+0xa1c/0xb20 net/batman-adv/hard-interface.c:734
batadv_softif_slave_add+0x64/0x130 net/batman-adv/soft-interface.c:839
do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2534
__rtnl_newlink+0x13b0/0x1760 net/core/rtnetlink.c:3500
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3531
rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5596
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:725
____sys_sendmsg+0x6e8/0x810 net/socket.c:2413
___sys_sendmsg+0xf3/0x170 net/socket.c:2467
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2496
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f09f490a059
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f09f325e168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f09f4a1d030 RCX: 00007f09f490a059
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007f09f496408d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f09f4f50b1f R14: 00007f09f325e300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: e8 5f 55 62 00 callq 0x625568
9: be 04 00 00 00 mov $0x4,%esi
e: 48 8d 7c 24 28 lea 0x28(%rsp),%rdi
13: e8 50 55 62 00 callq 0x625568
18: 8b 44 24 28 mov 0x28(%rsp),%eax
1c: ba 01 00 00 00 mov $0x1,%edx
21: 89 44 24 04 mov %eax,0x4(%rsp)
25: f0 0f b1 55 00 lock cmpxchg %edx,0x0(%rbp)
* 2a: 0f 85 91 00 00 00 jne 0xc1 <-- trapping instruction
30: 65 44 8b 35 08 ee a3 mov %gs:0x7ea3ee08(%rip),%r14d # 0x7ea3ee40
37: 7e
38: 48 rex.W
39: b8 00 00 00 00 mov $0x0,%eax
3e: 00 fc add %bh,%ah