watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [kworker/u8:4:453]
Modules linked in:
irq event stamp: 2734092
hardirqs last  enabled at (2734091): [<ffff80008b0bb8d0>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline]
hardirqs last  enabled at (2734091): [<ffff80008b0bb8d0>] _raw_spin_unlock_irq+0x30/0x80 kernel/locking/spinlock.c:202
hardirqs last disabled at (2734092): [<ffff80008afc1a54>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
hardirqs last disabled at (2734092): [<ffff80008afc1a54>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
softirqs last  enabled at (2734086): [<ffff80008ad012d8>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (2734086): [<ffff80008ad012d8>] batadv_nc_purge_paths+0x2f4/0x378 net/batman-adv/network-coding.c:471
softirqs last disabled at (2734084): [<ffff80008ad010b4>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (2734084): [<ffff80008ad010b4>] batadv_nc_purge_paths+0xd0/0x378 net/batman-adv/network-coding.c:442
CPU: 1 PID: 453 Comm: kworker/u8:4 Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: bat_events batadv_nc_worker
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : lock_release+0x4f8/0x9b8
lr : lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
lr : lock_release+0x4bc/0x9b8 kernel/locking/lockdep.c:5776
sp : ffff800097c87960
x29: ffff800097c87a30 x28: ffff80008f2d7a60 x27: dfff800000000000
x26: 1fffe00018d5d8df x25: ffff0000c6aec750 x24: ffff0000c6aebc80
x23: ffff0000c6aec6f8 x22: 00000000ffe2000d x21: 1d0d5e3c5b79062b
x20: 0000000000000002 x19: ffff0001b3d89000 x18: 1fffe000367b11de
x17: ffff80008f0fd000 x16: ffff800082f8f1fc x15: 0000000000000001
x14: ffff80008f100568 x13: dfff800000000000 x12: 0000000096c937f4
x11: 000000000bd218d3 x10: 0000000000ff0100 x9 : ffff80008f047000
x8 : 0000000000000000 x7 : ffff80008ad02238 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002
x2 : 0000000000000008 x1 : 0000000000000080 x0 : 0000000000000001
Call trace:
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline]
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline]
 lock_release+0x4f8/0x9b8 kernel/locking/lockdep.c:5777
 rcu_lock_release+0x2c/0x38 include/linux/rcupdate.h:339
 rcu_read_unlock include/linux/rcupdate.h:812 [inline]
 batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
 batadv_nc_worker+0x25c/0x580 net/batman-adv/network-coding.c:719
 process_one_work+0x79c/0x15b8 kernel/workqueue.c:3248
 process_scheduled_works kernel/workqueue.c:3329 [inline]
 worker_thread+0x938/0xecc kernel/workqueue.c:3409
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:50
lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:124
sp : ffff80008f077cf0
x29: ffff80008f077cf0 x28: dfff800000000000 x27: 1ffff00011e0efac
x26: ffff80008f0fd000 x25: 0000000000000000 x24: 0000000000000001
x23: 1ffff00011e1faad x22: ffff80008f0fd568 x21: 0000000000000000
x20: ffff80008f124e40 x19: ffff8000802dbbd8 x18: 1fffe000367ac9de
x17: ffff80008f0fd000 x16: ffff8000802db49c x15: 0000000000000001
x14: 1fffe000367ae741 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000000
x8 : 00000000000ac17f x7 : ffff8000804721bc x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008afc5f3c
x2 : 0000000000000000 x1 : ffff80008b140360 x0 : ffff800124d1e000
Call trace:
 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline]
 arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:48
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x1f0/0x4e4 kernel/sched/idle.c:332
 cpu_startup_entry+0x5c/0x74 kernel/sched/idle.c:430
 rest_init+0x2dc/0x2f4 init/main.c:747
 start_kernel+0x3f4/0x4f4 init/main.c:1103
 __primary_switched+0x84/0x8c arch/arm64/kernel/head.S:243