watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:14853] Modules linked in: irq event stamp: 10974 hardirqs last enabled at (10973): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (10973): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (10974): [] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline] hardirqs last disabled at (10974): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486 softirqs last enabled at (6194): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (6194): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (6141): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 CPU: 1 PID: 14853 Comm: syz-executor.5 Not tainted 6.1.37-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 pstate: 60400005 (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 : ffff800020e37300 x29: ffff800020e37660 x28: ffff8000155d1130 x27: 1fffe000368bc0b8 x26: ffff800020e37468 x25: ffff0001b45c6748 x24: 0000000000000000 x23: dfff800000000000 x22: ffff0001b45e05c8 x21: 0000000000000011 x20: ffff800020e37460 x19: ffff0001b45e05c0 x18: 1fffe000368b9976 x17: ffff8000155cd000 x16: ffff800008303874 x15: 0000000000000000 x14: 0000000000000002 x13: 0000000000000406 x12: 0000000000040000 x11: 000000000003ffff x10: ffff80002190a000 x9 : 0000000000000000 x8 : 0000000000000011 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : ffff800008b2d060 x3 : ffff800008451748 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 kill_bdev block/bdev.c:75 [inline] set_blocksize+0x270/0x2e8 block/bdev.c:152 sb_set_blocksize+0x54/0x108 block/bdev.c:161 ext4_load_super fs/ext4/super.c:5014 [inline] __ext4_fill_super fs/ext4/super.c:5070 [inline] ext4_fill_super+0x109c/0x75d0 fs/ext4/super.c:5661 get_tree_bdev+0x360/0x54c fs/super.c:1346 ext4_get_tree+0x28/0x38 fs/ext4/super.c:5691 vfs_get_tree+0x90/0x274 fs/super.c:1553 do_new_mount+0x25c/0x8c4 fs/namespace.c:3040 path_mount+0x590/0xe58 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount fs/namespace.c:3568 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3568 __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:581