Bug#791888: lvm2: segfaults when activating LVs other than /

[Bastian Blank]

Hi

On Thu, Jul 09, 2015 at 11:41:48AM +0200, Nicolas Noirbent wrote:
> After upgrading to the latest version of libdevmapper1.02.1 from
> unstable, I found myself unable to mount my /home logical volume due
> to a segfault in libdevmapper.so.1.02.1:
> # grep segfault /var/log/kern.log
> Jul  9 11:20:46 briareos kernel: [    8.184718] lvm[1639]: segfault at 80 ip 00007f80cf3f14ef sp 00007ffe0aa24050 error 4 in libdevmapper.so.1.02.1[7f80cf3d9000+46000]
> Jul  9 11:20:46 briareos kernel: [   30.719648] lvchange[1955]: segfault at 80 ip 00007f4c1ebf14ef sp 00007ffef827eca0 error 4 in libdevmapper.so.1.02.1[7f4c1ebd9000+46000]
> Jul  9 11:20:46 briareos kernel: [   84.536668] lvchange[1990]: segfault at 80 ip 00007fad611b74ef sp 00007ffda2685610 error 4 in libdevmapper.so.1.02.1[7fad6119f000+46000]

I can't reproduce this problem.  The address in the kernel message shows
a problem somewhere in the dm_tree_* functions, according to objdump it
is dm_tree_find_node_by_uuid.

Bastian

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