Your message dated Mon, 3 Nov 2008 12:57:16 +0100
with message-id <[EMAIL PROTECTED]>
and subject line Re: Processed: Reopen 498505
has caused the Debian Bug report #498505,
regarding mdadm: mdadm segfaults on superblock detection
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
498505: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498505
Debian Bug Tracking System
Contact [EMAIL PROTECTED] with problems
--- Begin Message ---
Package: mdadm
Version: 2.6.7-3
Severity: important
File: mdadm
Hi,
A friend of mine had a problem with a system that refused to boot properly
after losing power during a RAID-6 reshape. After some fiddling and newer
mdadm, we crashed into the problem that mdadm simply segfaulted on assemble.
The backtrace showed that it was crashing in match_home0, in memcmp(), since
st->sb was NULL.
I didn't debug it a lot further (I don't know the inner workings of mdadm; if
it helps, "st" was NULL on Assemble() entry), but simply giving the right
superblock type (0.90) on the command line made the RAID assemble and continue
reshaping, so I assume the bug is somehow in the superblock detection. FWIW,
here's a superblock from one of the disks before assembling:
/dev/sda1:
Magic : a92b4efc
Version : 00.91.00
UUID : c568c44e:0c9c4ba5:c8cfeb02:e466cd1e
Creation Time : Tue Jun 10 06:43:48 2008
Raid Level : raid6
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
Raid Devices : 5
Total Devices : 5
Preferred Minor : 6
Reshape pos'n : 1276426944 (1217.30 GiB 1307.06 GB)
Delta Devices : 1 (4->5)
Update Time : Sat Sep 6 16:46:16 2008
State : clean
Active Devices : 5
Working Devices : 5
Failed Devices : 0
Spare Devices : 0
Checksum : 8be433d0 - correct
Events : 282948
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 8 1 2 active sync /dev/sda1
0 0 8 17 0 active sync /dev/sdb1
1 1 8 49 1 active sync /dev/sdd1
2 2 8 1 2 active sync /dev/sda1
3 3 8 33 3 active sync /dev/sdc1
4 4 8 97 4 active sync /dev/sdg1
--- End Message ---
--- Begin Message ---
Version: 2.6.7.1-1
also sprach Debian Bug Tracking System <[EMAIL PROTECTED]> [2008.11.03.1250
+0100]:
> > reopen 498505
Please do not do this. If you reopen a bug report, make sure to
provide adequate information why you are doing so. If the bug is
still present, then provide all the information I need.
--
.''`. martin f. krafft <[EMAIL PROTECTED]>
: :' : proud Debian developer, author, administrator, and user
`. `'` http://people.debian.org/~madduck - http://debiansystem.info
`- Debian - when you have better things to do than fixing systems
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--- End Message ---
