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Re: dmsetup arguments

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: dmsetup arguments
From: alexander.tsvetkov@xxxxxxxxxx
Date: Wed, 19 Jun 2013 18:42:02 +0400
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <20130618132346.GT29338@dastard>
Organization: Oracle Corporation
References: <51BAD98D.90808@xxxxxxxxxx> <20130618012638.GO29376@dastard> <51C04DCC.7010401@xxxxxxxxxx> <20130618132346.GT29338@dastard>
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On 06/18/13 17:23, Dave Chinner wrote:
On Tue, Jun 18, 2013 at 04:08:44PM +0400, alexander.tsvetkov@xxxxxxxxxx wrote:
On 06/18/13 05:26, Dave Chinner wrote:
On Fri, Jun 14, 2013 at 12:51:25PM +0400, alexander.tsvetkov@xxxxxxxxxx wrote:

XFStests suite generic/311 test fails on command: "sbin/dmsetup load
flakey-test --table "0 150000001 flakey /dev/sdc2 0 0 180 1
drop_writes" with error: "device-mapper: reload ioctl on flakey-test
failed: Invalid argument", so as I understand the command format
provided to ioctl is incorrect here. Kernel logs has message:

"Jun 13 16:47:15 tests kernel: device-mapper: table: 252:3: flakey:
dm-flakey: Invalid argument count
Jun 13 16:47:15 tests kernel: device-mapper: ioctl: error adding
target to table"
What kernel and version of dmsetup are you using? If it is too old
to support the flakey target, then we need a new require rule check
for the test to avoid old versions of dmsetup...
Kernel version is 2.6.39, version of device-mapper-libs is 1.02.77.
So it's an old version of both the kernel and DM, so it's probably
not been tested at all. Like I said - it probably needs a better
check in _require_dm_flakey() to determine if the test should be run
or not.

I agree about kernel version, but why DM version of 1.02.77 is also old? I though that I am using the latest version of DM referenced by these sources:

The userspace code (dmsetup and libdevmapper) is now maintained alongside the LVM2 source available from http://sources.redhat.com/lvm2/.";



"Source code

The source code is stored in git and can be accessed with git clone git://git.fedorahosted.org/git/lvm2.git
There is a web interface to git at http://git.fedorahosted.org/git/lvm2.git";


so finally I've got DM of version 1.02.77 within lvm2 package of version 2.02.98 from http://git.fedorahosted.org/git/lvm2.git, it's of latest released version in the provided list. Most recent lvm2 package from master branch of 2.02.99 version contains DM ofversion 1.02.78 which has no attribute "drop_writes" in sources as well.

Alexander Tsvetkov

Patches are welcome...



PS: please reply-to-all for mailing list traffic, not by private
email. I've re-added the XFS list to the CC list.

PPS: Top posting destroys the context of your reply - nobody has any
idea of what part of the previous message you are responding to.
Repsonding inline is much easier to follow with when conversions get

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