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Hi,<br>
<br>
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:<br>
<br>
"Jun 13 16:47:15 tests kernel: device-mapper: table: 252:3: flakey:
dm-flakey: Invalid argument count<br>
Jun 13 16:47:15 tests kernel: device-mapper: ioctl: error adding
target to table"<br>
<br>
Looking into the source code of package LVM2.02.98 which devmapper
library belongs to I find argument "drop_writes" used in the command
only in documentation doc/kernel/flakey.txt:<br>
<br>
"Optional feature parameters:<br>
If no feature parameters are present, during the periods of<br>
unreliability, all I/O returns errors.<br>
<br>
drop_writes:<br>
All write I/O is silently ignored.<br>
Read I/O is handled correctly."<br>
<br>
This argument feature was added in the patch from "27 Jun 2011":<br>
<br>
"[dm-devel] [PATCH 0/9] dm flakey: add features
<hr>
<ul>
<li><em>From</em>: Mike Snitzer <snitzer redhat com></li>
<li><em>To</em>: <dm-devel redhat com></li>
<li><em>Cc</em>: Mike Snitzer <snitzer redhat com></li>
<li><em>Subject</em>: [dm-devel] [PATCH 0/9] dm flakey: add
features</li>
<li><em>Date</em>: Mon, 27 Jun 2011 15:53:34 -0400</li>
</ul>
<hr>
<pre>Add "drop_writes", "corrupt_bio_byte" and "debug" features to the
flakey target."
</pre>
<a
href="https://www.redhat.com/archives/dm-devel/2011-June/msg00081.html">https://www.redhat.com/archives/dm-devel/2011-June/msg00081.html</a><br>
<br>
but was patch modifications included in library of LVM2.02.98
package? Or may be it was already removed from it after?<br>
<br>
Thanks,<br>
Alexander Tsvetkov<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
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