http://bugzilla.novell.com/show_bug.cgi?id=571841
http://bugzilla.novell.com/show_bug.cgi?id=571841#c3
Martin Mohring changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |martin.mohring@5etech.eu
--- Comment #3 from Martin Mohring 2010-06-20 23:20:14 UTC ---
I had even more extreme situation. I was using dump (with read only access to
the block device) and had created an ext4 fs on a LVM volume. Then I have just
tried to check what happens when I do backup using dump. To my surprise:
0. After a while, I get a read error on one of of the Volumes
1. The LVM Volume Group gets destroyed
2. All ext4 filesystems are then lost
The only way to get rid of such a LVM is to null it with dd and putting lots of
0 bytes into the underlying partitions. My only explaination for this is that
dump somehow tries to read bytes at non existing fs offset. This causes a non
recoverable read error, destroying then the mounted filesystem.
I though this could never ever happen, because logically dump accesses only
with read access. This can only be explained with LVM bug and/or missing error
handling in ext4.
So keep off of using dump on a ext4 inside a LVM volume.
--
Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.