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Date: Sat, 27 Jun 2026 10:52:42 +0300
From: Mike Rapoport <rppt@kernel.org>
To: Breno Leitao <leitao@debian.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@kernel.org>,
	Lorenzo Stoakes <ljs@kernel.org>,
	Vlastimil Babka <vbabka@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Shuah Khan <shuah@kernel.org>,
	Naoya Horiguchi <nao.horiguchi@gmail.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Shuah Khan <skhan@linuxfoundation.org>,
	"Liam R. Howlett" <liam@infradead.org>, lance.yang@linux.dev,
	Steven Rostedt <rostedt@goodmis.org>,
	Masami Hiramatsu <mhiramat@kernel.org>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
	linux-trace-kernel@vger.kernel.org, kernel-team@meta.com
Subject: Re: [PATCH v10 6/6] selftests/mm: add hwpoison-panic destructive test
Message-ID: <aj-BShkN6BXex_ku@kernel.org>
References: <20260626-ecc_panic-v10-0-6dacb8ad024d@debian.org>
 <20260626-ecc_panic-v10-6-6dacb8ad024d@debian.org>
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In-Reply-To: <20260626-ecc_panic-v10-6-6dacb8ad024d@debian.org>

Hi Breno,

On Fri, Jun 26, 2026 at 08:33:20AM -0700, Breno Leitao wrote:
> Add a destructive selftest that verifies
> vm.panic_on_unrecoverable_memory_failure actually panics when a
> hwpoison error hits a kernel-owned page.

> +ksft_skip=4

...

> +ksft_print() { echo "# $*"; }
> +ksft_exit_skip() { ksft_print "$*"; exit "$ksft_skip"; }
> +ksft_exit_fail() { echo "not ok 1 $*"; exit 1; }

There is tools/testing/selftests/kselftest/ktap_helpers.sh that already
implements this :)

-- 
Sincerely yours,
Mike.