rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P60/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=27205, q=57 ncpus=2)
task:kworker/u4:4 state:R running task stack:26128 pid:60 tgid:60 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7047
irqentry_exit+0x36/0x80 kernel/entry/common.c:348
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:write_comp_data+0x12/0x80 kernel/kcov.c:236
Code: 04 25 80 c2 03 00 48 8b 80 f0 15 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 49 89 d2 49 89 f8 49 89 f1 65 48 8b 14 25 80 c2 03 00 <65> 8b 05 bf a6 7b 7e a9 00 01 ff 00 74 0f f6 c4 01 74 59 8b 82 fc
RSP: 0018:ffffc900015b7ba8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88807e825fa8 RCX: ffffffff8a556c0f
RDX: ffff888016b80000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00000000000003f5 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000002 R12: ffff88801db4c680
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001
rcu_read_lock include/linux/rcupdate.h:751 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x17f/0x10e0 net/batman-adv/network-coding.c:719
process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g27205 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=21029
rcu: rcu_preempt kthread starved for 10500 jiffies! g27205 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
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:I stack:27984 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
schedule_timeout+0x137/0x290 kernel/time/timer.c:2183
rcu_gp_fqs_loop+0x1ec/0xb10 kernel/rcu/tree.c:1631
rcu_gp_kthread+0x24b/0x380 kernel/rcu/tree.c:1830
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9322 Comm: syz-executor.1 Not tainted 6.7.0-syzkaller-12829-g125514880ddd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x20 kernel/kcov.c:304
Code: 00 00 f3 0f 1e fa 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 c8 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 aa fe ff ff 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc90000007e38 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff8880b982bbc0 RCX: ffffffff8176c724
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000006 R09: 17bcc58c34000000
R10: 19890277eadd5273 R11: ffffffff8acf3060 R12: ffff8880b982bac0
R13: 17bcc58c34000000 R14: ffff88807ab38340 R15: 0000000000000001
FS: 00007f6d323636c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f2b000 CR3: 000000002b373000 CR4: 0000000000350ef0
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1654 [inline]
__hrtimer_run_queues+0x454/0xc20 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x105/0x400 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x31/0x70 kernel/locking/spinlock.c:194
Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 06 3d d7 f6 48 89 df e8 fe b4 d7 f6 f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f 01 00 00 00 e8 f5 54 c9 f6 65 8b 05 b6 89 72 75 85 c0 74 12 5b
RSP: 0018:ffffc9000a297a60 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff8880b982bac0 RCX: 1ffffffff242ab27
RDX: 0000000000000000 RSI: ffffffff8accae80 RDI: ffffffff8b2fcb40
RBP: 0000000000000286 R08: 0000000000000001 R09: fffffbfff242a9e8
R10: ffffffff92154f47 R11: 0000000000000002 R12: fe232a12c347bf9a
R13: 0000000000000000 R14: 00000062c2144f41 R15: dffffc0000000000
clock_was_set+0x592/0x850 kernel/time/hrtimer.c:972
timekeeping_inject_offset+0x4d1/0x640 kernel/time/timekeeping.c:1395
do_adjtimex+0x373/0xaa0 kernel/time/timekeeping.c:2444
do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
__do_sys_clock_adjtime+0x173/0x280 kernel/time/posix-timers.c:1171
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f6d3167cda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d323630c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007f6d317ac1f0 RCX: 00007f6d3167cda9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007f6d316c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f6d317ac1f0 R15: 00007ffde8175918