watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz.1.452:5852]
Modules linked in:
irq event stamp: 76458
hardirqs last  enabled at (76457): [<ffff80001232d358>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (76457): [<ffff80001232d358>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (76458): [<ffff80001232b034>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (76458): [<ffff80001232b034>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (71960): [<ffff8000081c3414>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (71960): [<ffff8000081c3414>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599
softirqs last disabled at (71891): [<ffff800008020174>] __do_softirq+0x14/0x20 kernel/softirq.c:605
CPU: 1 PID: 5852 Comm: syz.1.452 Not tainted 6.1.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:424 [inline]
pc : smp_call_function_many_cond+0x20f8/0x32b8 kernel/smp.c:998
lr : csd_lock_wait kernel/smp.c:424 [inline]
lr : smp_call_function_many_cond+0x2110/0x32b8 kernel/smp.c:998
sp : ffff800021ba7020
x29: ffff800021ba7380 x28: 1fffe000367a2a30 x27: ffff800015a91148
x26: ffff800021ba7188 x25: ffff0001b3cfa308 x24: 0000000000000000
x23: dfff800000000000 x22: ffff0001b3d15188 x21: 0000000000000011
x20: ffff800021ba7180 x19: ffff0001b3d15180 x18: 0000000000000006
x17: 00000000ffff0000 x16: ffff800008301594 x15: 0000000000000002
x14: 1ffff00002b520b2 x13: dfff800000000000 x12: 0000000000080000
x11: 000000000007ffff x10: ffff80002224a000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : ffff800008b38310 x3 : ffff80000844aecc
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:424 [inline]
 smp_call_function_many_cond+0x20f8/0x32b8 kernel/smp.c:998
 on_each_cpu_cond_mask+0x5c/0xc4 kernel/smp.c:1166
 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
 open_ctree+0x87c/0x2340 fs/btrfs/disk-io.c:3486
 btrfs_fill_super+0x1b4/0x2c8 fs/btrfs/super.c:1469
 btrfs_mount_root+0x6f8/0x7f8 fs/btrfs/super.c:1835
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632
 vfs_get_tree+0x90/0x274 fs/super.c:1573
 fc_mount fs/namespace.c:1043 [inline]
 vfs_kern_mount+0xdc/0x178 fs/namespace.c:1073
 btrfs_mount+0x330/0x9c8 fs/btrfs/super.c:1895
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632
 vfs_get_tree+0x90/0x274 fs/super.c:1573
 do_new_mount+0x278/0x8fc fs/namespace.c:3056
 path_mount+0x590/0xe5c fs/namespace.c:3386
 do_mount fs/namespace.c:3399 [inline]
 __do_sys_mount fs/namespace.c:3607 [inline]
 __se_sys_mount fs/namespace.c:3584 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3584
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585