watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:13113]
Modules linked in:
irq event stamp: 6198
hardirqs last  enabled at (6197): [<ffff80001193bc98>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (6197): [<ffff80001193bc98>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (6198): [<ffff80001193bee0>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (1958): [<ffff800008020ccc>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (1958): [<ffff800008020ccc>] __do_softirq+0xb5c/0xe20 kernel/softirq.c:587
softirqs last disabled at (1929): [<ffff8000081b4ee0>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1929): [<ffff8000081b4ee0>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (1929): [<ffff8000081b4ee0>] __irq_exit_rcu+0x28c/0x534 kernel/softirq.c:636
CPU: 1 PID: 13113 Comm: syz-executor.2 Not tainted 5.15.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
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+0xa50/0x1088 kernel/smp.c:969
lr : csd_lock_wait kernel/smp.c:440 [inline]
lr : smp_call_function_many_cond+0xa68/0x1088 kernel/smp.c:969
sp : ffff800022af76b0
x29: ffff800022af7700 x28: ffff0001b4832d48 x27: dfff800000000000
x26: 0000000000000011 x25: ffff0001b4832d40 x24: ffff8000148c0ff8
x23: 1fffe000369065a8 x22: ffff0001b48191c8 x21: ffff800014aad5c0
x20: 0000000000000000 x19: ffff0001b4832d48 x18: 0000000000000000
x17: ff808000086d1db0 x16: ffff8000082e8e80 x15: ffff8000086d1db0
x14: 0000000000000406 x13: ffffffffffffffff x12: 0000000000040000
x11: 000000000003ffff x10: ffff800022d2a000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000840b0c4
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+0xa50/0x1088 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]
 set_blocksize+0x28c/0x304 block/bdev.c:157
 sb_set_blocksize block/bdev.c:166 [inline]
 sb_min_blocksize+0xe8/0x1a8 block/bdev.c:182
 exfat_read_boot_sector fs/exfat/super.c:419 [inline]
 __exfat_fill_super fs/exfat/super.c:576 [inline]
 exfat_fill_super+0x2a0/0x23e0 fs/exfat/super.c:644
 get_tree_bdev+0x360/0x54c fs/super.c:1294
 exfat_get_tree+0x28/0x38 fs/exfat/super.c:716
 vfs_get_tree+0x90/0x274 fs/super.c:1499
 do_new_mount+0x25c/0x8c8 fs/namespace.c:2994
 path_mount+0x590/0x104c fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount fs/namespace.c:3522 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3522
 __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:596
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584