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From: "J. Bruce Fields" <bfields@fieldses.org>
To: Tom Horsley <horsley1953@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: BUG  at net/sunrpc/svc_xprt.c:921
Date: Fri, 8 Feb 2013 15:58:45 -0500	[thread overview]
Message-ID: <20130208205844.GD21040@fieldses.org> (raw)
In-Reply-To: <20130207075651.3016819a@tomh>

On Thu, Feb 07, 2013 at 07:56:51AM -0500, Tom Horsley wrote:
> I noticed some previous messages with this subject, but the
> walkback I'm getting doesn't match exactly the ones shown
> in the threads I saw, so I figured I'd send this in.
> 
> This happens on both my Fedora 18 and Fedora 17 partitions
> when mounting filesystems from very old servers that
> need the proto=udp option to talk.
> 
> The redhat bugzilla is here:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=908451
> 
> There is a photo of the walkback in that bugzilla:
> 
> svc_delete_xprt+0x12a
> svc_recv+0x101
> ? nfs_callback_authenticate+0x50
> nfs4_callback_svc+0x3b
> kthread+0xc0
> ? ftrace_raw_event_xen_mmu_flush_tlb_others+0x50
> ? kthread_create_on_node+0x120
> ret_from_fork+0x7c
> ? kthread_create_on_node+0x120

OK, yes this is the

	if (test_and_set_bit(XPT_DEAD, &xprt->xpt_flags))
	      BUG();

in svc_delete_xprt() and is a known (but unfixed) problem.  Stanislav
has some patches, that should be fixed soon....

--b.

  reply	other threads:[~2013-02-08 20:58 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-07 12:56 BUG at net/sunrpc/svc_xprt.c:921 Tom Horsley
2013-02-08 20:58 ` J. Bruce Fields [this message]
  -- strict thread matches above, loose matches on Subject: below --
2013-01-14 16:17 Mark Lord
2013-01-14 20:37 ` J. Bruce Fields
2013-01-15  4:16   ` Mark Lord
2013-01-15 20:56     ` J. Bruce Fields
2013-01-16  5:20       ` Stanislav Kinsbursky
2013-01-16 22:51         ` Mark Lord
2013-01-16 22:58           ` Mark Lord
2013-01-17  5:05           ` Stanislav Kinsbursky
2013-01-17 13:03             ` J. Bruce Fields
2013-01-17 13:24               ` Stanislav Kinsbursky
2013-01-17 23:41                 ` Mark Lord
2013-01-18  5:37                   ` Stanislav Kinsbursky
2013-01-18 15:48                     ` Mark Lord
2013-01-18 15:56                       ` J. Bruce Fields
2013-01-21  8:19                         ` Stanislav Kinsbursky
2013-01-17 13:11 ` Mark Lord
2013-01-17 13:53   ` J. Bruce Fields
2013-01-17 23:40     ` Mark Lord
2013-02-25 20:45     ` Mark Lord
2013-02-25 20:52       ` J. Bruce Fields

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