From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: "Theodore Ts'o" <tytso@mit.edu>, Jan Kara <jack@suse.cz>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Xiao Guangrong <guangrong.xiao@linux.intel.com>,
linux-ext4@vger.kernel.org,
Dan Williams <dan.j.williams@intel.com>,
Yumei Huang <yuhuang@redhat.com>, KVM <kvm@vger.kernel.org>,
"linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
LKML <linux-kernel@vger.kernel.org>,
Linux ACPI <linux-acpi@vger.kernel.org>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: DAX can not work on virtual nvdimm device
Date: Fri, 9 Sep 2016 10:34:21 -0600 [thread overview]
Message-ID: <20160909163421.GB18554@linux.intel.com> (raw)
In-Reply-To: <20160909140327.r2j64s5xdaxnnxhx@thunk.org>
On Fri, Sep 09, 2016 at 10:03:27AM -0400, Theodore Ts'o wrote:
> On Fri, Sep 09, 2016 at 11:19:25AM +0200, Jan Kara wrote:
> > > > > > 1. make the guest kernel based on your tree, the top commit is
> > > > > > 10d7902fa0e82b (dax: unmap/truncate on device shutdown) and
> > > > > > the config file can be found in this thread.
>
> What git tree is 10d7902fa0e82b from?
It's from djbw's libnvdimm tree.
https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/
I don't think that commit is relevant, though. I believe this should
reproduce with a vanilla v4.7 tree. I can verify if you'd like.
> > Hum, nothing unusual in there. I've tried reproducing on a local SLE11 SP3
> > machine (which is from about the same time) but everything works as
> > expected there. Shrug...
>
> I just tried reproducing it via "gce-xfstests --pmem-device shell"
> with a downgraded e2fsprogs to stock upstream 1.42.12, and I can't
> reproduce it with the ext4.git tree. I'm not sure whether the git
> commit is critical, though. Is this a regression that was working
> before?
I'm not sure if we've ever tested Centos6/RHEL6 with DAX. It could be that it
has never worked.
> Or it's possible that Red Hat did something weird with the CentOS 6
> e2fsprogs....
prev parent reply other threads:[~2016-09-09 16:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-19 11:19 DAX can not work on virtual nvdimm device Xiao Guangrong
2016-08-19 14:59 ` Dan Williams
2016-08-19 18:30 ` Ross Zwisler
2016-08-21 9:55 ` Boaz Harrosh
2016-08-29 7:54 ` Xiao Guangrong
2016-08-29 19:30 ` Ross Zwisler
2016-08-30 6:53 ` Xiao Guangrong
2016-08-30 17:09 ` Dan Williams
2016-08-31 8:44 ` Xiao Guangrong
2016-08-31 16:46 ` Ross Zwisler
2016-09-02 2:57 ` Ross Zwisler
2016-09-06 15:06 ` Jan Kara
2016-09-08 20:47 ` Ross Zwisler
2016-09-09 9:19 ` Jan Kara
2016-09-09 14:03 ` Theodore Ts'o
2016-09-09 16:34 ` Ross Zwisler [this message]
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