syzbot

raw: 05ffc00000010801 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000002ffffffff 0000000000000000
page dumped because: VM_WARN_ON_ONCE_PAGE(is_hzp)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4161 at mm/huge_memory.c:2624 split_huge_page_to_list+0x838/0x2c1c mm/huge_memory.c:2624
Modules linked in:
CPU: 0 PID: 4161 Comm: syz.0.16 Not tainted 5.15.186-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : split_huge_page_to_list+0x838/0x2c1c mm/huge_memory.c:2624
lr : split_huge_page_to_list+0x82c/0x2c1c mm/huge_memory.c:2624
sp : ffff80001fc47520
x29: ffff80001fc476c0 x28: 1fffff800076e000 x27: 0000000000000000
x26: ffff80001fc47620 x25: 0000000000000000 x24: ffff0001fec6bd80
x23: dfff800000000000 x22: 05ffc00000010801 x21: fffffc0003b70008
x20: fffffc0003b70000 x19: ffff8000165a0000 x18: 0000000000000001
x17: 0000000000000000 x16: ffff8000111b2714 x15: 00000000ffffffff
x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 6930529bacd00700
x8 : 0000000000000001 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fc46b38 x4 : ffff80001423f400 x3 : ffff800008505198
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 00000000fffffff0
Call trace:
 split_huge_page_to_list+0x838/0x2c1c mm/huge_memory.c:2624
 split_huge_page include/linux/huge_mm.h:192 [inline]
 try_to_split_thp_page+0xf4/0x1d4 mm/memory-failure.c:1459
 memory_failure+0x71c/0x1e88 mm/memory-failure.c:1826
 madvise_inject_error mm/madvise.c:973 [inline]
 do_madvise+0x4b8/0x26ec mm/madvise.c:1166
 __do_sys_madvise mm/madvise.c:1233 [inline]
 __se_sys_madvise mm/madvise.c:1231 [inline]
 __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1231
 __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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 1514
hardirqs last  enabled at (1513): [<ffff8000082f8f64>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (1514): [<ffff8000111adf74>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (1484): [<ffff80000819e9e8>] softirq_handle_end kernel/softirq.c:419 [inline]
softirqs last  enabled at (1484): [<ffff80000819e9e8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604
softirqs last disabled at (1459): [<ffff80000819efec>] __do_softirq kernel/softirq.c:610 [inline]
softirqs last disabled at (1459): [<ffff80000819efec>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (1459): [<ffff80000819efec>] invoke_softirq kernel/softirq.c:457 [inline]
softirqs last disabled at (1459): [<ffff80000819efec>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659
---[ end trace 86c87cb7ff190b0e ]---
Memory Failure: 0x12dcaa: thp split failed
Memory failure: 0x12dcaa: recovery action for unsplit thp: Ignored