Bug#703315: mdadm: core dump with bad disk
Francesco Potortì
Potorti at isti.cnr.it
Mon Mar 18 11:16:57 UTC 2013
>18.03.2013 14:41, Francesco Potortì wrote:
>> Package: mdadm
>> Version: 3.2.5-5
>> Severity: normal
>>
>> Dear Maintainer,
>>
>> The disk /dev/sdb is broken. However, the kernel sees it, as you can
>> see in /proc/partitions. In this situation, I see this:
>>
>> tucano:~# mdadm /dev/md3 --add /dev/sdb1
>> Segmentation fault (core dumped)
>
>The only way forward from this is to try to get some debugging out of it.
>You've a coredump, we need a backtrace to see/know where it errors out.
>For this, the best is to try the same with a binary recompiled to have
>debugging symbols. Are you familiar with (re)compile process and
>willing to help finding the bug? I can help a bit with the former, by
>providing you a debug build of mdadm.
I have a programming background and a lot of past experience in
compiling and debugging, but I have not done it for quite a while, so I
am willing to do it if you help me, because otherwise I could not find
the time to do things by myself. Also, I still have that running kernel
and broken disk, but I should substitute it soon, because I have now no
more redundancy, so this has to be done quickly.
Let's start :)
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