From: Theodore Ts'o <tytso@mit.edu>
To: "Toralf Förster" <toralf.foerster@gmx.de>
Cc: linux-ext4@vger.kernel.org,
UML devel <user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] fuzz testing an ext4fs file system under a 32 bit Linux user mode linux guest let task jbd2/ubda hang
Date: Sat, 9 Aug 2014 16:00:18 -0400 [thread overview]
Message-ID: <20140809200018.GG15431@thunk.org> (raw)
In-Reply-To: <53E66C57.8010303@gmx.de>
On Sat, Aug 09, 2014 at 08:45:43PM +0200, Toralf Förster wrote:
>
> BTW may I just ask, if the following (same 32 bit system, host and
> UML guest are both at v3.16, 4 trinity childs hammering victims
> files in a ramdisk within the uML guest) matches the above too ? Or
> does the BUG output here more helpful data ? :
Unfortunately, there's nothing useful here. There is more than one
BUG_ON() in this mpage_release_unused_pages function, and what's more,
we have no idea which syscall or combination of syscalls might have
left a page in a particular state.
- Ted
------------------------------------------------------------------------------
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
prev parent reply other threads:[~2014-08-09 20:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-03 13:52 [uml-devel] fuzz testing an ext4fs file system under a 32 bit Linux user mode linux guest let task jbd2/ubda hang Toralf Förster
2014-08-03 18:42 ` Theodore Ts'o
2014-08-09 18:45 ` Toralf Förster
2014-08-09 20:00 ` Theodore Ts'o [this message]
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=20140809200018.GG15431@thunk.org \
--to=tytso@mit.edu \
--cc=linux-ext4@vger.kernel.org \
--cc=toralf.foerster@gmx.de \
--cc=user-mode-linux-devel@lists.sourceforge.net \
/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