watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u4:6:588]
Modules linked in:
irq event stamp: 3290236
hardirqs last  enabled at (3290235): [<ffff800011ac0874>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (3290235): [<ffff800011ac0874>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (3290236): [<ffff800011ac0abc>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (3286080): [<ffff8000081b6d74>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (3286080): [<ffff8000081b6d74>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (3286053): [<ffff8000081b740c>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (3286053): [<ffff8000081b740c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (3286053): [<ffff8000081b740c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (3286053): [<ffff8000081b740c>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
CPU: 1 PID: 588 Comm: kworker/u4:6 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: writeback wb_workfn (flush-259:0)
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
lr : queued_spin_lock_slowpath+0x16c/0x938 kernel/locking/qspinlock.c:382
sp : ffff800020c662a0
x29: ffff800020c66340 x28: 1ffff0000418cc60 x27: 1fffe0001a338975
x26: dfff800000000000 x25: ffff70000418cc58 x24: ffff800020c662c0
x23: 1fffe0001a338974 x22: ffff800020c66300 x21: 0000000000000001
x20: 0000000000000001 x19: ffff0000d19c4ba0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80000830532c x15: 0000000000000406
x14: 1ffff0000295806a x13: dfff800000000000 x12: 0000000000000001
x11: 1fffe0001a338974 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000101 x7 : ffff800008805040 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800008304554
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline]
 queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x334/0x35c kernel/locking/spinlock_debug.c:115
 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_lock+0xb8/0x10c kernel/locking/spinlock.c:154
 page_vma_mapped_walk+0x114c/0x1384
 page_mkclean_one+0x244/0x57c mm/rmap.c:926
 rmap_walk_file+0x370/0x55c mm/rmap.c:2378
 rmap_walk mm/rmap.c:2396 [inline]
 page_mkclean+0x2b4/0x400 mm/rmap.c:1006
 clear_page_dirty_for_io+0x2c8/0x860 mm/page-writeback.c:2749
 mpage_submit_page fs/ext4/inode.c:2092 [inline]
 mpage_process_page_bufs+0x614/0x8cc fs/ext4/inode.c:2226
 mpage_prepare_extent_to_map+0xa10/0xec0 fs/ext4/inode.c:2654
 ext4_writepages+0xa20/0x36fc fs/ext4/inode.c:2782
 do_writepages+0x39c/0x5ec mm/page-writeback.c:2386
 __writeback_single_inode+0x148/0x13a4 fs/fs-writeback.c:1647
 writeback_sb_inodes+0x94c/0x1654 fs/fs-writeback.c:1930
 __writeback_inodes_wb+0x110/0x39c fs/fs-writeback.c:2001
 wb_writeback+0x410/0xfc8 fs/fs-writeback.c:2106
 wb_check_old_data_flush fs/fs-writeback.c:2206 [inline]
 wb_do_writeback fs/fs-writeback.c:2259 [inline]
 wb_workfn+0xbb4/0x1070 fs/fs-writeback.c:2288
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870