| 2012-11-23 11:16:46 |
Laurent Bigonville |
bug |
|
|
added bug |
| 2012-11-23 11:16:56 |
Laurent Bigonville |
lvm2 (Ubuntu): importance |
Undecided |
High |
|
| 2012-11-23 11:17:09 |
Laurent Bigonville |
bug watch added |
|
https://bugzilla.redhat.com/show_bug.cgi?id=832392 |
|
| 2012-11-23 11:17:09 |
Laurent Bigonville |
bug task added |
|
lvm2 |
|
| 2012-11-23 11:17:27 |
Laurent Bigonville |
bug watch added |
|
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=691271 |
|
| 2012-11-23 11:17:27 |
Laurent Bigonville |
bug task added |
|
lvm2 (Debian) |
|
| 2012-11-23 12:50:10 |
Laurent Bigonville |
summary |
pvmove wipe data when issue_discards=1 |
pvmove wipes data when issue_discards=1 on SSD |
|
| 2012-11-26 10:05:39 |
Dimitri John Ledkov |
lvm2 (Ubuntu): assignee |
|
Dmitrijs Ledkovs (xnox) |
|
| 2012-11-26 12:38:33 |
Bug Watch Updater |
lvm2 (Debian): status |
Unknown |
Fix Released |
|
| 2012-11-26 13:18:24 |
Launchpad Janitor |
branch linked |
|
lp:ubuntu/raring-proposed/lvm2 |
|
| 2012-11-26 18:43:24 |
Launchpad Janitor |
lvm2 (Ubuntu): status |
New |
Fix Released |
|
| 2013-01-21 11:53:45 |
Arnd |
bug |
|
|
added subscriber Ubuntu Stable Release Updates Team |
| 2013-02-11 00:36:20 |
Dimitri John Ledkov |
nominated for series |
|
Ubuntu Quantal |
|
| 2013-02-11 00:36:20 |
Dimitri John Ledkov |
bug task added |
|
lvm2 (Ubuntu Quantal) |
|
| 2013-02-11 00:38:38 |
Dimitri John Ledkov |
description |
Hi,
pvmove can wipe the data when issue_discards is set to 1 in /etc/lvm/lvm.conf
This has been fixed in debian in the -5 upload.
The patches can be found at:
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-June/000037.html
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-June/000038.html
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-June/000039.html |
[Impact]
* Setting issue_discards=1 in /etc/lvm.conf (non-default) results in data loss, if pvmove is performed
on a Logical Volume which is moved to or form an SSD or other block devices which supports discards
* As this bug *directly cause a loss of user data* this fix should be uploaded to quantal (lvm2 in precise is not effected, because it does not support the issue_discards option.
[Test Case]
* Enable issue_discards=1 in /etc/lvm.conf
* Create a volumegroup with two physical volumes (at least one of these must support discards (e.g. an SSD)
* Create a test logical volume
* Create a filesystem on this logical volume
* With pvmove, move the underlying logical volume to the other physical volume
=> experience Data loss (in my experiments the whole logical volume was zeroed, checked with hexdumd /dev/vgtest/lvtest)
[Regression Potential]
* The upstream fix is fairly self contained and separates discard and move operations.
The patches can be found at:
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-June/000037.html
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-June/000038.html
https://lists.fedorahosted.org/pipermail/lvm2-commits/2012-June/000039.html
An SRU of just the upstream-*.patches from the -5 upload fix this bug. |
|
| 2013-02-11 00:38:46 |
Dimitri John Ledkov |
lvm2 (Ubuntu Quantal): status |
New |
Triaged |
|
| 2013-02-11 00:38:56 |
Dimitri John Ledkov |
lvm2 (Ubuntu Quantal): importance |
Undecided |
Medium |
|
| 2013-08-13 14:14:56 |
Tapani Tarvainen |
bug |
|
|
added subscriber Tapani Tarvainen |
| 2014-12-03 10:03:09 |
Rolf Leggewie |
lvm2 (Ubuntu Quantal): status |
Triaged |
Won't Fix |
|
| 2017-10-28 06:34:27 |
Bug Watch Updater |
lvm2: status |
Unknown |
Fix Released |
|
| 2017-10-28 06:34:27 |
Bug Watch Updater |
lvm2: importance |
Unknown |
Critical |
|
