watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz.1.261:4871]
Modules linked in:
irq event stamp: 92424
hardirqs last  enabled at (92423): [<ffff800011ab6ebc>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (92423): [<ffff800011ab6ebc>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (92424): [<ffff800011ab7104>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (87938): [<ffff8000081b6574>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (87938): [<ffff8000081b6574>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (87901): [<ffff8000081b6c0c>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (87901): [<ffff8000081b6c0c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (87901): [<ffff8000081b6c0c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (87901): [<ffff8000081b6c0c>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
CPU: 1 PID: 4871 Comm: syz.1.261 Not tainted 5.15.164-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:440 [inline]
pc : smp_call_function_many_cond+0xa38/0x1044 kernel/smp.c:969
lr : csd_lock_wait kernel/smp.c:440 [inline]
lr : smp_call_function_many_cond+0xa50/0x1044 kernel/smp.c:969
sp : ffff80001d957720
x29: ffff80001d957770 x28: 0000000000000000 x27: dfff800000000000
x26: 0000000000000011 x25: ffff0001b47e9980 x24: ffff800014ac0ff8
x23: 1fffe000368fd330 x22: ffff0001b47cf008 x21: ffff800014cada00
x20: 0000000000000000 x19: ffff0001b47e9988 x18: 0000000000000000
x17: 0000000000000002 x16: ffff8000082ebf04 x15: 0000000000000406
x14: ffff0000d0d551c0 x13: 0000000000ff0100 x12: 0000000000040000
x11: 000000000003ffff x10: ffff80001db9a000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000840e3e0
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]
 csd_lock_wait kernel/smp.c:440 [inline]
 smp_call_function_many_cond+0xa38/0x1044 kernel/smp.c:969
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1135
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1426
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x164/0x324 block/bdev.c:659
 blkdev_put_whole block/bdev.c:690 [inline]
 blkdev_put+0x498/0x6b0 block/bdev.c:954
 kill_block_super+0x98/0xdc fs/super.c:1417
 deactivate_locked_super+0xb8/0x13c fs/super.c:335
 get_tree_bdev+0x380/0x54c fs/super.c:1314
 xfs_fs_get_tree+0x28/0x38 fs/xfs/xfs_super.c:1723
 vfs_get_tree+0x90/0x274 fs/super.c:1517
 do_new_mount+0x278/0x8fc fs/namespace.c:3005
 path_mount+0x594/0x101c fs/namespace.c:3335
 do_mount fs/namespace.c:3348 [inline]
 __do_sys_mount fs/namespace.c:3556 [inline]
 __se_sys_mount fs/namespace.c:3533 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3533
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584