From: Theodore Ts'o <tytso@mit.edu>
To: Markus Trippelsdorf <markus@trippelsdorf.de>,
Dave Jones <davej@redhat.com>,
linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,
Zheng Liu <wenqing.lz@taobao.com>
Subject: Re: torrent hash failures since 3.9.0-rc1
Date: Mon, 11 Mar 2013 23:30:54 -0400 [thread overview]
Message-ID: <20130312033054.GB18595@thunk.org> (raw)
In-Reply-To: <20130312030057.GA6142@gmail.com>
On Tue, Mar 12, 2013 at 11:00:58AM +0800, Zheng Liu wrote:
>
> Thanks for reporting this problem. My deepest apologies.
>
> As Ted suggested, could you please try to use ext4 git tree? I want to
> make sure whether this bug has been fixed by my lastest patch series or
> not.
It's definitely worth a try to compile the master branch of the ext4
tree and see if it reproduces or not.
However, I suspect the problem will still be there. Based on the
commit which Markus has identified, I'm guessing it's a race between
the extents_status shrinker and writing into uninitialized region of
the file (since apprently compiling rtorrent with
--with-posix-fallocate is required).
Markus, how much memory do you have in your system? That may be the
other reason why I haven't been able to reproduce it to date; I had a
lot of free memory when I tried to reproduce the problem, so the slab
shrinker didn't engage.
Regards,
- Ted
next prev parent reply other threads:[~2013-03-12 3:31 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-11 17:18 torrent hash failures since 3.9.0-rc1 Markus Trippelsdorf
2013-03-11 19:17 ` Markus Trippelsdorf
2013-03-11 19:41 ` Dave Jones
2013-03-11 20:13 ` Markus Trippelsdorf
2013-03-11 20:37 ` Theodore Ts'o
2013-03-11 20:46 ` Markus Trippelsdorf
2013-03-11 21:18 ` Theodore Ts'o
2013-03-11 21:38 ` Markus Trippelsdorf
2013-03-11 23:12 ` Markus Trippelsdorf
2013-03-11 23:26 ` Dave Jones
2013-03-12 3:00 ` Zheng Liu
2013-03-12 3:30 ` Theodore Ts'o [this message]
2013-03-12 3:44 ` Theodore Ts'o
2013-03-12 6:16 ` Markus Trippelsdorf
2013-03-12 6:44 ` Zheng Liu
2013-03-12 6:48 ` Markus Trippelsdorf
2013-03-12 7:16 ` Zheng Liu
2013-03-12 13:28 ` Theodore Ts'o
2013-03-13 10:15 ` Zheng Liu
2013-03-12 8:28 ` Sander
2013-03-12 22:04 ` Dave Chinner
2013-03-11 20:44 ` Dave Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20130312033054.GB18595@thunk.org \
--to=tytso@mit.edu \
--cc=davej@redhat.com \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=markus@trippelsdorf.de \
--cc=wenqing.lz@taobao.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).