From: "Theodore Ts'o" <tytso@mit.edu>
To: Ritesh Harjani <ritesh.list@gmail.com>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>,
open list <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
lkft-triage@lists.linaro.org,
linux-ext4 <linux-ext4@vger.kernel.org>,
LTP List <ltp@lists.linux.it>,
Andrew Morton <akpm@linux-foundation.org>,
Arnd Bergmann <arnd@arndb.de>,
Dan Carpenter <dan.carpenter@linaro.org>,
Andreas Dilger <adilger.kernel@dilger.ca>,
Ojaswin Mujoo <ojaswin@linux.ibm.com>
Subject: Re: next: kernel BUG at fs/ext4/mballoc.c:4369!
Date: Mon, 17 Jul 2023 17:34:24 -0400 [thread overview]
Message-ID: <20230717213424.GB3842864@mit.edu> (raw)
In-Reply-To: <87jzuyobch.fsf@doe.com>
On Mon, Jul 17, 2023 at 08:04:54PM +0530, Ritesh Harjani wrote:
>
> These can basically trigger in extremely low memory space and only when
> such ranges exist in the PA rbtree. Hence, I guess it is a little hard
> to tigger race.
Ritesh, thanks for looking into this!
Naresh, how easy is it for you to trigger the BUG when using LTP? I
did two xfstests runs using "gce-xfstests -c ext2/default -g auto",
one on the ext4 dev branch, and one on linux-next 20230717, and I
wasn't able to trigger the BUG.
If you can trivially trigger it using LTP (perhaps with a low memory
configuration in your test setup?), that would be useful to know.
Cheers,
- Ted
next prev parent reply other threads:[~2023-07-17 21:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-16 6:02 Naresh Kamboju
2023-07-17 4:31 ` Theodore Ts'o
2023-07-17 5:06 ` Naresh Kamboju
2023-07-17 5:43 ` Ritesh Harjani
2023-07-17 7:12 ` Ojaswin Mujoo
2023-07-17 7:43 ` Ritesh Harjani
2023-07-17 14:34 ` Ritesh Harjani
2023-07-17 21:34 ` Theodore Ts'o [this message]
2023-07-18 1:57 ` Ritesh Harjani
2023-07-18 9:10 ` [LTP] " Petr Vorel
2023-07-18 11:47 ` Naresh Kamboju
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=20230717213424.GB3842864@mit.edu \
--to=tytso@mit.edu \
--cc=adilger.kernel@dilger.ca \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=dan.carpenter@linaro.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=lkft-triage@lists.linaro.org \
--cc=ltp@lists.linux.it \
--cc=naresh.kamboju@linaro.org \
--cc=ojaswin@linux.ibm.com \
--cc=ritesh.list@gmail.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