From: Theodore Ts'o <tytso@mit.edu>
To: Sandeep Joshi <sanjos100@gmail.com>
Cc: linux-ext4@vger.kernel.org
Subject: Re: process hangs in ext4_sync_file
Date: Mon, 6 Jan 2014 09:32:03 -0500 [thread overview]
Message-ID: <20140106143203.GA13648@thunk.org> (raw)
In-Reply-To: <CAEfL3K=vEaZ+-pj=QCogJvcvf0xgsEsAT9DX8eExMjSiNmcNLQ@mail.gmail.com>
On Mon, Jan 06, 2014 at 03:58:58PM +0530, Sandeep Joshi wrote:
> I reported a problem with process hanging in ext4 sync on a SSD a few weeks ago
> See this thread http://www.spinics.net/lists/linux-ext4/msg40369.html
>
> That was on a SSD with discard option enabled. I was asked to turn
> that off which I did and never hit the issue again.
>
> Today I saw the same problem on an ext4 filesystem mounted on a loop
> device. The stack is *identical*.
What model SSD are you using? This looks like the we're just waiting
for the SSD to acknowledge that the write has been completed. This
really smells like a case of a crappy SSD....
- Ted
next prev parent reply other threads:[~2014-01-06 14:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-21 12:39 process hangs in ext4_sync_file Sandeep Joshi
2013-10-21 12:57 ` Zheng Liu
2013-10-22 3:24 ` Sandeep Joshi
2013-10-22 8:45 ` Sandeep Joshi
2013-10-23 10:20 ` Jan Kara
2013-10-23 14:58 ` Sandeep Joshi
2013-10-24 3:54 ` Zheng Liu
2013-10-29 5:36 ` Sandeep Joshi
[not found] ` <CAEfL3KmAXw+mE24kZkG4YHU3C98rU6pkbAwMhSO1pw1rg81HVw@mail.gmail.com>
2013-10-29 14:46 ` Jan Kara
2013-10-29 15:00 ` Sandeep Joshi
2013-10-29 15:26 ` Jan Kara
2013-10-29 17:04 ` Christoph Hellwig
2013-10-29 17:53 ` Jan Kara
2014-01-06 10:28 ` Sandeep Joshi
2014-01-06 14:32 ` Theodore Ts'o [this message]
2014-01-06 15:08 ` Sandeep Joshi
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=20140106143203.GA13648@thunk.org \
--to=tytso@mit.edu \
--cc=linux-ext4@vger.kernel.org \
--cc=sanjos100@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.