From: Thomas Gleixner <tglx@linutronix.de>
To: Nikolay Borisov <kernel@kyup.com>
Cc: "Linux-Kernel@Vger. Kernel. Org" <linux-kernel@vger.kernel.org>,
Jiri Slaby <jslaby@suse.cz>, Oleg Nesterov <oleg@redhat.com>,
SiteGround Operations <operations@siteground.com>
Subject: Re: crash in 3.12.51 (likely in 3.12.52 as well) in timer code
Date: Thu, 4 Feb 2016 09:56:00 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.11.1602040954310.25254@nanos> (raw)
In-Reply-To: <56B1DD62.9030900@kyup.com>
On Wed, 3 Feb 2016, Nikolay Borisov wrote:
>
> It seems when the code tries to do prev->next = next in __list_del from detach_timer,
> rax has a value of dead000000200200 (LIST_POISON2).
> So in this case the prev/next entries do not look like corrupted, whereas
> when manipulating the list inside detach_timer they do. This is really
> odd, any ideas how to further debug this?
Please enable
CONFIG_DEBUG_OBJECTS
CONFIG_DEBUG_OBJECTS_TIMERS
CONFIG_DEBUG_OBJECTS_WORK
That should pinpoint the offending code.
Thanks,
tglx
next prev parent reply other threads:[~2016-02-04 8:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-03 10:58 Nikolay Borisov
2016-02-04 8:56 ` Thomas Gleixner [this message]
2016-02-04 11:32 ` Mike Galbraith
2016-02-04 11:51 ` Nikolay Borisov
2016-02-04 12:17 ` Mike Galbraith
2016-02-04 12:21 ` Nikolay Borisov
2016-02-04 12:27 ` Mike Galbraith
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