From: alexander.tsvetkov@oracle.com
To: xfs@oss.sgi.com
Subject: dmsetup arguments
Date: Fri, 14 Jun 2013 12:51:25 +0400 [thread overview]
Message-ID: <51BAD98D.90808@oracle.com> (raw)
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Hi,
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"
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:
"Optional feature parameters:
If no feature parameters are present, during the periods of
unreliability, all I/O returns errors.
drop_writes:
All write I/O is silently ignored.
Read I/O is handled correctly."
This argument feature was added in the patch from "27 Jun 2011":
"[dm-devel] [PATCH 0/9] dm flakey: add features
------------------------------------------------------------------------
* /From/: Mike Snitzer <snitzer redhat com>
* /To/: <dm-devel redhat com>
* /Cc/: Mike Snitzer <snitzer redhat com>
* /Subject/: [dm-devel] [PATCH 0/9] dm flakey: add features
* /Date/: Mon, 27 Jun 2011 15:53:34 -0400
------------------------------------------------------------------------
Add "drop_writes", "corrupt_bio_byte" and "debug" features to the
flakey target."
https://www.redhat.com/archives/dm-devel/2011-June/msg00081.html
but was patch modifications included in library of LVM2.02.98 package?
Or may be it was already removed from it after?
Thanks,
Alexander Tsvetkov
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next reply other threads:[~2013-06-14 8:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-14 8:51 alexander.tsvetkov [this message]
2013-06-18 1:26 ` dmsetup arguments Dave Chinner
[not found] ` <51C04DCC.7010401@oracle.com>
2013-06-18 13:23 ` Dave Chinner
2013-06-19 14:42 ` alexander.tsvetkov
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