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From: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
To: Joseph Glanville
	<joseph.glanville-2MxvZkOi9dvvnOemgxGiVw@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	scst-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Kernel panic under 3.2.14 Xen dom0 and SCST trunk
Date: Thu, 02 Aug 2012 11:04:16 +0000	[thread overview]
Message-ID: <501A5EB0.4060904@acm.org> (raw)
In-Reply-To: <CAOzFzEjDHpTROUcKg9cOZkNSX1LnShSombgt26+VOptVdy5i-Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

On 07/24/12 15:43, Joseph Glanville wrote:
> [35404.804723] BUG: unable to handle kernel NULL pointer dereference at (null)

I've been able to reproduce this ib_srp crash. Apparently if an SRP
response is received after srp_reset_host() has been invoked
srp_process_rsp() tries to call scmnd->scsi_done(scmnd) with scsi_done
== NULL, hence the kernel oops. A candidate fix is available in this
(rebased) tree: http://github.com/bvanassche/linux/tree/srp-ha.

Bart.

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  parent reply	other threads:[~2012-08-02 11:04 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-24 15:16 Kernel panic under 3.2.14 Xen dom0 and SCST trunk Joseph Glanville
2012-07-24 15:43 ` Joseph Glanville
     [not found]   ` <CAOzFzEjDHpTROUcKg9cOZkNSX1LnShSombgt26+VOptVdy5i-Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-08-02 11:04     ` Bart Van Assche [this message]
     [not found]       ` <501A5EB0.4060904-HInyCGIudOg@public.gmane.org>
2012-08-02 15:45         ` Joseph Glanville
2012-08-02 20:12         ` David Dillow
     [not found]           ` <1343938328.25205.17.camel-zHLflQxYYDO4Hhoo1DtQwJ9G+ZOsUmrO@public.gmane.org>
2012-08-02 22:51             ` Joseph Glanville
2012-08-03 11:12             ` Bart Van Assche
2012-07-24 17:53 ` Bart Van Assche
     [not found]   ` <500EE108.2090605-HInyCGIudOg@public.gmane.org>
2012-07-24 19:50     ` Joseph Glanville
     [not found]       ` <CAOzFzEiiiEsUqLjRM-TFsVZhQyvQi=abX0ufS6obvuZxtWgB-Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-24 19:52         ` Joseph Glanville
2012-07-24 19:59         ` Bart Van Assche
     [not found]           ` <500EFEB3.5020806-HInyCGIudOg@public.gmane.org>
2012-07-24 20:14             ` Joseph Glanville
     [not found]               ` <CAOzFzEi8rnbTyomWEByJL3J_7QnCJSj-yWhMdh8d5mHnBRLVzw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-07-25  1:09                 ` Joseph Glanville
2012-07-25  2:30             ` Roland Dreier

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