Ceph

I reproduced this on change 6fd694c3942a12a3730a30d059b51b37d3f7536f, before the wip-815 branch was merged in. I used vstart.sh -d -n to initialize and start the cluster.

My best guess is that this is somehow fallout from the crush changes a few weeks ago, but I haven't really investigated much.

cmccabe@metropolis:~/ceph2/src$ gdb ./dumpjournal 
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<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/cmccabe/ceph2/src/dumpjournal...done.
(gdb) r
Starting program: /home/cmccabe/ceph2/src/dumpjournal 
[Thread debugging using libthread_db enabled]
[New Thread 0x7ffff69f5700 (LWP 9706)]
[New Thread 0x7ffff61f4700 (LWP 9707)]
[New Thread 0x7ffff59f3700 (LWP 9708)]
[New Thread 0x7ffff51f2700 (LWP 9709)]

Program received signal SIGSEGV, Segmentation fault.
0x00000000005ba450 in OSDMap::object_locator_to_pg (this=0x99f740, oid=..., loc=...) at ./osd/OSDMap.h:778
778           ps = ceph_str_hash(pool->v.object_hash, oid.name.c_str(), oid.name.length());
(gdb) bt
#0  0x00000000005ba450 in OSDMap::object_locator_to_pg (this=0x99f740, oid=..., loc=...) at ./osd/OSDMap.h:778
#1  0x00000000005ab1f4 in Objecter::recalc_op_target (this=0x9bd5d0, op=0x9bef10) at osdc/Objecter.cc:554
#2  0x00000000005aa672 in Objecter::op_submit (this=0x9bd5d0, op=0x9bef10, s=0x0) at osdc/Objecter.cc:483
#3  0x00000000005fc068 in Objecter::read (this=0x9bd5d0, oid=..., oloc=..., off=0, len=0, snap=..., pbl=0x9c0090, flags=16, 
    onfinish=0x9c0080, objver=0x0, extra_ops=0x0) at osdc/Objecter.h:697
#4  0x00000000005fc11d in Objecter::read_full (this=0x9bd5d0, oid=..., oloc=..., snap=..., pbl=0x9c0090, flags=0, onfinish=0x9c0080, 
    objver=0x0, extra_ops=0x0) at osdc/Objecter.h:785
#5  0x00000000005f4373 in Journaler::read_head (this=0x9beb10, on_finish=0x9c0080, bl=0x9c0090) at osdc/Journaler.cc:150
#6  0x00000000005f4243 in Journaler::recover (this=0x9beb10, onread=0x9c7070) at osdc/Journaler.cc:141
#7  0x000000000058ea1b in main (argc=1, argv=0x9c71a0, envp=0x7fffffffe5b8) at dumpjournal.cc:114