From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: Xiong Zhou <xzhou@redhat.com>,
Lokesh Jaliminche <lokesh.jaliminche@gmail.com>,
Andreas Dilger <adilger@dilger.ca>, Theodore Ts'o <tytso@mit.edu>
Cc: linux-nvdimm@ml01.01.org, linux-ext4@vger.kernel.org,
linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: ext2/3 using ext4 module mkdir IO error on pmem DAX mount
Date: Wed, 2 Mar 2016 17:28:24 -0700 [thread overview]
Message-ID: <20160303002824.GA31238@linux.intel.com> (raw)
In-Reply-To: <20160302064304.GA15559@dhcp12-144.nay.redhat.com>
On Wed, Mar 02, 2016 at 02:43:04PM +0800, Xiong Zhou wrote:
> Hi,
>
> mkdir failed IO error on pmem DAX ext2/3 fs mount using ext4 module.
>
> This happends only on -next tree, not on Linus' tree,
> at least from 4.5.0-rc5-next-20160224.
I was able to reproduce this and bisect it to the following commit:
commit 1f2d779fed21 ("ext4: optimize group search for inode allocation")
The fact that DAX was enabled in this failure was a red herring - it fails
without DAX as well. The key is just that we're mounting an ext2 formatted
filesystem using the ext4 module, I think.
- Ross
next prev parent reply other threads:[~2016-03-03 0:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-02 6:43 ext2/3 using ext4 module mkdir IO error on pmem DAX mount Xiong Zhou
2016-03-03 0:28 ` Ross Zwisler [this message]
2016-03-03 17:19 ` lokesh jaliminche
2016-03-03 23:49 ` Theodore Ts'o
2016-03-04 18:26 ` lokesh jaliminche
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=20160303002824.GA31238@linux.intel.com \
--to=ross.zwisler@linux.intel.com \
--cc=adilger@dilger.ca \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-next@vger.kernel.org \
--cc=linux-nvdimm@ml01.01.org \
--cc=lokesh.jaliminche@gmail.com \
--cc=tytso@mit.edu \
--cc=xzhou@redhat.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).