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
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