watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor:6427]
Modules linked in:
irq event stamp: 1491282
hardirqs last  enabled at (1491281): [<ffff80008b6ab3bc>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]
hardirqs last  enabled at (1491281): [<ffff80008b6ab3bc>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95
hardirqs last disabled at (1491282): [<ffff80008b6a8e34>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (1491282): [<ffff80008b6a8e34>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (1491280): [<ffff80008030f088>] softirq_handle_end kernel/softirq.c:407 [inline]
softirqs last  enabled at (1491280): [<ffff80008030f088>] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589
softirqs last disabled at (1491215): [<ffff800080020db4>] __do_softirq+0x14/0x20 kernel/softirq.c:595
CPU: 0 UID: 0 PID: 6427 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:340 [inline]
pc : smp_call_function_many_cond+0x19c8/0x32a8 kernel/smp.c:884
lr : csd_lock_wait kernel/smp.c:340 [inline]
lr : smp_call_function_many_cond+0x19e0/0x32a8 kernel/smp.c:884
sp : ffff8000a34878e0
x29: ffff8000a3487a20 x28: 1fffe000366ff301 x27: ffffffffffffffff
x26: ffff0001b3822428 x25: 0000000000000001 x24: 0000000000000008
x23: dfff800000000000 x22: 1fffe000366ff300 x21: 0000000000000011
x20: ffff0001b37f9808 x19: ffff0001b37f9800 x18: 1fffe000366fc67e
x17: ffff80008f99d000 x16: ffff8000804642d0 x15: 0000000000000001
x14: 1fffe00036704485 x13: 0000000000000000 x12: 0000000000000000
x11: ffff600036704486 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000011 x7 : ffff80008098e7a8 x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff800080dfdcf4 x3 : ffff8000805ec574
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline] (P)
 __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline] (P)
 csd_lock_wait kernel/smp.c:340 [inline] (P)
 smp_call_function_many_cond+0x19c8/0x32a8 kernel/smp.c:884 (P)
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1051
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1530
 invalidate_bdev+0x74/0xa4 block/bdev.c:100
 ext4_put_super+0x5a0/0xb70 fs/ext4/super.c:1356
 generic_shutdown_super+0x12c/0x2bc fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1710
 ext4_kill_sb+0x68/0xa4 fs/ext4/super.c:7379
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380
 task_work_run+0x230/0x2e0 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Sending NMI from CPU 0 to CPUs 1: