watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.0:4252]
Modules linked in:
irq event stamp: 8365362
hardirqs last  enabled at (8365361): [<ffff800012111a88>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (8365361): [<ffff800012111a88>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (8365362): [<ffff80001210f764>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (8365362): [<ffff80001210f764>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (8357684): [<ffff800008020d74>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (8357684): [<ffff800008020d74>] __do_softirq+0xc14/0xea0 kernel/softirq.c:600
softirqs last disabled at (8357571): [<ffff80000802a994>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
CPU: 0 PID: 4252 Comm: syz-executor.0 Not tainted 6.1.42-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:413 [inline]
pc : smp_call_function_many_cond+0x1b28/0x3270 kernel/smp.c:987
lr : csd_lock_wait kernel/smp.c:413 [inline]
lr : smp_call_function_many_cond+0x1b40/0x3270 kernel/smp.c:987
sp : ffff80001e087120
x29: ffff80001e087490 x28: ffff8000158a1130 x27: 1fffe000368acab8
x26: ffff80001e087288 x25: ffff0001b4589dc8 x24: 0000000000000001
x23: dfff800000000000 x22: ffff0001b45655c8 x21: 0000000000000011
x20: ffff80001e087280 x19: ffff0001b45655c0 x18: ffff80001e087120
x17: ffff80001589d000 x16: ffff800008304cec x15: 0000000000000000
x14: 0000000000000000 x13: 0000000000000406 x12: 0000000000000001
x11: ff80800008454e4c x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff800008b309fc x3 : ffff800008454e40
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:413 [inline]
 smp_call_function_many_cond+0x1b28/0x3270 kernel/smp.c:987
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1155
 on_each_cpu_cond include/linux/smp.h:105 [inline]
 invalidate_bh_lrus+0x34/0x40 fs/buffer.c:1412
 invalidate_bdev+0x90/0xc0 block/bdev.c:85
 btrfs_close_bdev fs/btrfs/volumes.c:1116 [inline]
 btrfs_close_one_device fs/btrfs/volumes.c:1140 [inline]
 close_fs_devices+0x3f4/0x810 fs/btrfs/volumes.c:1182
 btrfs_close_devices+0xcc/0x4a0 fs/btrfs/volumes.c:1197
 close_ctree+0x5f0/0xad8 fs/btrfs/disk-io.c:4760
 btrfs_put_super+0x40/0x50 fs/btrfs/super.c:394
 generic_shutdown_super+0x130/0x328 fs/super.c:501
 kill_anon_super+0x4c/0x74 fs/super.c:1108
 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2445
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2144/0x3470 arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581