linux-kernel - Re: [PATCH] ext4: fix a big-endian bug when an extent is zeroed out

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Message-ID: <51750B26.4000607@de.ibm.com>
Date:	Mon, 22 Apr 2013 12:04:22 +0200
From:	Christian Borntraeger <borntraeger@...ibm.com>
To:	"Theodore Ts'o" <tytso@....edu>
CC:	CAI Qian <caiqian@...hat.com>, Eric Whitney <enwlinux@...il.com>,
	Dmitry Monakhov <dmonakhov@...nvz.org>,
	Christian Kujau <lists@...dbynature.de>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-s390 <linux-s390@...r.kernel.org>,
	Steve Best <sbest@...hat.com>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] ext4: fix a big-endian bug when an extent is zeroed out

On 20/04/13 17:19, Theodore Ts'o wrote:
> On Mon, Apr 08, 2013 at 11:05:11PM -0400, CAI Qian wrote:
>> I can help run xfstests for ext4 dev tree on x64, Power7, Z10 and
>> KVM platforms with back-storage like SAN/multipath, iSCSI and FCoE.
>> I plan to run this weekly and setup a wiki page to update the testing
>> status by every Friday.
> 
> Hi CAI,
> 
> Sorry for not getting back to you sooner; I was at Collaboration
> Summit and LSF/MM last week.
> 
> It would be great if you could help run xfstests on the ext4 dev tree
> on various platforms.  We don't have any coverage on Power7 or
> s390/Z10 at the moment, so that would be especially welcome.  Coverage
> on alternate storage backends can be interesting in finding timing
> problems so they would be valuable as well.

It is probably easier to get access to a Power system (gcc compile farm?).
Having said that, there is a service available to get access to a System z
for open source development:
http://www-03.ibm.com/systems/z/os/linux/support/community.html

When we did the valgrind port we used that a lot to gave access to 
non-IBMers.
Dont know if it is ok to install a private kernel, though. Will double
check.

Christian

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