From: sashiko-bot@kernel.org
To: "Heiko Carstens" <hca@linux.ibm.com>
Cc: "Christian Borntraeger" <borntraeger@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>,
"Heiko Carstens" <hca@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
linux-s390@vger.kernel.org
Subject: Re: [PATCH 2/2] s390/entry: Save lowcore on invalid kernel stack
Date: Sat, 03 Oct 2026 01:33:08 +0000 [thread overview]
Message-ID: <20261003013308.8D6DA1F00898@smtp.kernel.org> (raw)
In-Reply-To: <20261002152055.3305184-3-hca@linux.ibm.com>
> In case of an invalid kernel stack copy the current CPU's lowcore to
> stack_invalid_lowcore, so it is available to debug tools after a crash.
>
> The copy is helpful since the lowcore is modified e.g., when printing
> messages before a dump is taken. Keep it as unmodified as possible and
> as close to the event that caused register corruption.
>
> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261002152055.3305184-1-hca@linux.ibm.com?part=2
prev parent reply other threads:[~2026-10-03 1:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-02 15:20 [PATCH 0/2] s390: Improve handling for stack register corruption Heiko Carstens
2026-10-02 15:20 ` [PATCH 1/2] s390/entry: Last breaking event vs invalid kernel stack Heiko Carstens
2026-10-03 1:33 ` sashiko-bot
2026-10-02 15:20 ` [PATCH 2/2] s390/entry: Save lowcore on " Heiko Carstens
2026-10-03 1:33 ` sashiko-bot [this message]
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