From: Baoquan He <bhe@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Eric DeVolder <eric.devolder@oracle.com>
Cc: linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
vschneid@redhat.com, sourabhjain@linux.ibm.com
Subject: Re: [PATCH v3] Crash: add lock to serialize crash hotplug handling
Date: Wed, 27 Sep 2023 08:14:41 +0800 [thread overview]
Message-ID: <ZRNz8T1XOX7PWOt6@MiWiFi-R3L-srv> (raw)
In-Reply-To: <11bebd5e-8183-d7a7-6acc-53b00a6cc2d5@oracle.com>
On 09/26/23 at 04:53pm, Eric DeVolder wrote:
>
>
> On 9/26/23 15:50, Andrew Morton wrote:
> > On Tue, 26 Sep 2023 20:09:05 +0800 Baoquan He <bhe@redhat.com> wrote:
> >
> > > Eric reported that handling corresponding crash hotplug event can be
> > > failed easily when many memory hotplug event are notified in a short
> > > period. They failed because failing to take __kexec_lock.
> >
> > I'm assuming that this failure is sufficiently likely so as to justify a -stable
> > backport of the fix. Please let me know if this is incorrect.
>
> Andrew,
> Correct, this is sufficiently likely to happen.
Agree. Maybe a Fixes tag need be added:
===
Fixes: 247262756121 ("crash: add generic infrastructure for crash hotplug support")
next prev parent reply other threads:[~2023-09-27 0:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-26 12:09 [PATCH v3] Crash: add lock to serialize crash hotplug handling Baoquan He
2023-09-26 14:55 ` Eric DeVolder
2023-09-26 20:50 ` Andrew Morton
2023-09-26 21:53 ` Eric DeVolder
2023-09-27 0:14 ` Baoquan He [this message]
2023-09-28 8:51 ` Valentin Schneider
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