watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.2:7881]
Modules linked in:
irq event stamp: 6670
hardirqs last  enabled at (6669): [<ffff80001214f520>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (6669): [<ffff80001214f520>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (6670): [<ffff80001214d1fc>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (6670): [<ffff80001214d1fc>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (2396): [<ffff800008020d7c>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (2396): [<ffff800008020d7c>] __do_softirq+0xc1c/0xe38 kernel/softirq.c:600
softirqs last disabled at (2375): [<ffff80000802a99c>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
CPU: 0 PID: 7881 Comm: syz-executor.2 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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 : ffff80001fce7360
x29: ffff80001fce76c0 x28: 1fffe0003686e038 x27: ffff800015841130
x26: ffff80001fce74c8 x25: ffff0001b4395a08 x24: 0000000000000001
x23: dfff800000000000 x22: ffff0001b43701c8 x21: 0000000000000011
x20: ffff80001fce74c0 x19: ffff0001b43701c0 x18: ffff80001fce7200
x17: ffff8000188cc000 x16: ffff800008304e88 x15: ffff800008acec50
x14: ffff800008acb9c0 x13: ffff800008062464 x12: 0000000000040000
x11: 000000000003ffff x10: ffff80001e6a9000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : ffff800008062674
x5 : ffff0000ec301900 x4 : ffff800008b34550 x3 : ffff800008451978
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
 __ext4_fill_super fs/ext4/super.c:5639 [inline]
 ext4_fill_super+0x25bc/0x7570 fs/ext4/super.c:5664
 get_tree_bdev+0x360/0x54c fs/super.c:1355
 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5694
 vfs_get_tree+0x90/0x274 fs/super.c:1562
 do_new_mount+0x278/0x8fc fs/namespace.c:3051
 path_mount+0x590/0xe5c fs/namespace.c:3381
 do_mount fs/namespace.c:3394 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount fs/namespace.c:3579 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3579
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 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