From: Bradley Morgan <brads@mainlining.org>
To: Petr Mladek <pmladek@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Jinchao Wang <wangjinchao600@gmail.com>,
Craig Lamparter <craig.lamparter@hpe.com>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Guenter Roeck <linux@roeck-us.net>,
linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 0/6] panic: fix panic_force_cpu= redirect races and NMI bypass
Date: Tue, 22 Sep 2026 15:41:52 +0100 [thread overview]
Message-ID: <6FCE58E3-B367-4258-8852-EB04335F9590@mainlining.org> (raw)
In-Reply-To: <arJ2KqCA7aBgt71r@pathway.suse.cz>
On 22 September 2026 13:35:54 BST, Petr Mladek <pmladek@suse.com> wrote:
>On Wed 2026-09-16 18:29:51, Bradley Morgan wrote:
>> The panic_force_cpu= parameter redirects a panic to a specific CPU so
>> the crash kernel runs there. The redirect code in panic_try_force_cpu()
>> had two races and an NMI bypass, all found by Sashiko. This series
>> closes them and kills one more hack that the rework turned up.
>
>IMHO, this version is ready to go. It would be great to fix the commit
>message in the 4th patch but I think that Andrew could do the fixup.
>
Akpm? Up for it?
>Best Regards,
>Petr
>
--- Thanks!
"I'm not a very positive person" - Linus torvalds
next prev parent reply other threads:[~2026-09-22 14:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 18:29 Bradley Morgan
2026-09-16 18:29 ` [PATCH v7 1/6] panic: fix redirect CPU race in panic_try_force_cpu() Bradley Morgan
2026-09-16 18:29 ` [PATCH v7 2/6] panic: flatten nmi_panic control flow Bradley Morgan
2026-09-16 18:29 ` [PATCH v7 3/6] panic: fix va_list reuse in panic_try_force_cpu() Bradley Morgan
2026-09-16 18:29 ` [PATCH v7 4/6] panic: restore variable arguments to nmi_panic() Bradley Morgan
2026-09-22 12:14 ` Petr Mladek
2026-09-16 18:29 ` [PATCH v7 5/6] panic: allow force_cpu redirect from an NMI Bradley Morgan
2026-09-16 18:29 ` [PATCH v7 6/6] panic: kill the "buffer unavailable" redirect fallback Bradley Morgan
2026-09-22 12:28 ` Petr Mladek
2026-09-22 12:35 ` [PATCH v7 0/6] panic: fix panic_force_cpu= redirect races and NMI bypass Petr Mladek
2026-09-22 14:41 ` Bradley Morgan [this message]
2026-09-22 23:22 ` Andrew Morton
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