From: "J. Bruce Fields" <bfields@fieldses.org>
To: Philipp Hahn <hahn@univention.de>
Cc: linux-fsdevel@vger.kernel.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: kernel BUG at linux-3.16.7-ckt25/fs/dcache.c:2373!
Date: Fri, 3 Jun 2016 09:14:21 -0400 [thread overview]
Message-ID: <20160603131421.GA24548@fieldses.org> (raw)
In-Reply-To: <57514B1C.3080506@univention.de>
On Fri, Jun 03, 2016 at 11:17:16AM +0200, Philipp Hahn wrote:
> Hello,
>
> Am 02.06.2016 um 22:02 schrieb J. Bruce Fields:
> > On Thu, Jun 02, 2016 at 09:51:27AM +0200, Philipp Hahn wrote:
> >> probably during heavy IO our file server crashed on a BUG_ON in dache.c,
> >> probably triggered by NFS:
> >>
> >>> ------------[ cut here ]------------
> >>> kernel BUG at /var/build/temp/tmp.BPql4ErveJ/pbuilder/linux-3.16.7-ckt25/fs/dcache.c:2373!
> ...
> >> Our kernel is 3.16.7-ckt25 from Debian + ckt26 and ckt27 on top.
> >
> > So this is the BUG_ON(!d_unhashed(..)) at the top of __d_rehash? I
> > don't know the -ckt kernels, and I don't have a BUG at line 2373 of
> > dcache.c, or something else?
>
> Yes, exactly that first line.
Oh, from googling... it looks like that's what they're calling the
Ubuntu kernels these days? It'd be best to have them triage this first.
> > There have been a lot of changes in the area since 3.16.7.
>
> Too bad.
> Any concrete hint or should I better spent my time convincing management
> to install a newer Linux kernel?
I don't know if a newer kernel's better, but if you were able to
reproduce this frequently then experimenting with different kernel
versions might be one way to work this out.
I suppose 75a2352d0110960aeee1a28ddc09a55f97c99100 might in theory be a
fix? Not a tall sure of that, though.
--b.
>
> Anyway, thank you for the response.
>
> Philipp
next prev parent reply other threads:[~2016-06-03 13:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-02 7:51 kernel BUG at linux-3.16.7-ckt25/fs/dcache.c:2373! Philipp Hahn
2016-06-02 20:02 ` J. Bruce Fields
2016-06-03 9:17 ` Philipp Hahn
2016-06-03 13:14 ` J. Bruce Fields [this message]
-- strict thread matches above, loose matches on Subject: below --
2016-12-09 9:15 Daniel Pocock
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