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.
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
- Date: Mon, 27 Jun 2011 15:53:34 -0400
Add "drop_writes", "corrupt_bio_byte" and "debug" features to the
but was patch modifications included in library of LVM2.02.98
package? Or may be it was already removed from it after?