From mboxrd@z Thu Jan  1 00:00:00 1970
From: Josh Durgin <josh.durgin@dreamhost.com>
Subject: Re: rbd snap
Date: Fri, 16 Sep 2011 15:23:20 -0700
Message-ID: <4E73CC58.9070503@dreamhost.com>
References: <4E736107.4050309@tuxadero.com> <Pine.LNX.4.64.1109160928170.11043@cobra.newdream.net> <4E73C064.7020104@tuxadero.com>
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On 09/16/2011 02:32 PM, Martin Mailand wrote:
> root@c-brick-001:~# rbd rm --snap=2011091601 test
> *** Caught signal (Segmentation fault) **
> in thread 0x7f203d749740
> ceph version 0.34 (commit:2f039eeeb745622b866d80feda7afa055e15f6d6)
> 1: rbd() [0x457062]
> 2: (()+0xfc60) [0x7f203ccf6c60]
> 3: (librbd::snap_set(librbd::ImageCtx*, char const*)+0x10) [0x7f203d32ecd0]
> 4: (main()+0x59f) [0x4518ff]
> 5: (__libc_start_main()+0xff) [0x7f203b6cdeff]
> 6: rbd() [0x44d569]
> Segmentation fault

I added a bug to the tracker for this 
(http://tracker.newdream.net/issues/1545). It shouldn't crash the way 
you ran it, but if you're trying to remove a snapshot you need to use 
the 'snap rm' command, i.e.:
$ rbd snap rm --snap=2011091601 test