WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to

WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to_l

Status: closed as dup on 2022/09/02 12:32
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+2184d61af7d9d86337fc@syzkaller.appspotmail.com
First crash: 621d, last: 621d

▶ ▼ Duplicate of

Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported
WARNING in split_huge_page_to_list (2) mm	C	error		2334	353d	617d

▶ ▼ Discussions (1)

Title	Replies (including bot)	Last reply
[syzbot] WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to_l	1 (2)	2022/09/02 12:32

Sample crash report:

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: 3026 at mm/huge_memory.c:2555 split_huge_page_to_l

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2022/08/20 00:54	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	680fb5b009e8	26a13b38	.config	console log	report	syz	C			ci-upstream-gce-arm64	WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to_l

* ~~Struck through~~ repros no longer work on HEAD.