[ClusterLabs] lrmd segfault

[alexey at kurnosov.spb.ru]

As i said, we used rpm from standard repo, hardly it compiled incorrectly. And according
to a spec L5630 (the node's CPU) has SSE4.2 support. And in that case it should be
illegal instruction exception, not segfault.

--
Alexey Kurnosov

On Tue, Jan 31, 2017 at 07:34:18AM +0100, Kristoffer Grönlund wrote:
> alexey at kurnosov.spb.ru writes:
> 
> > [ Unknown signature status ]
> >
> > Hi All.
> >
> > We have the heterogeneous corosync/pacemaker cluster of 5 nodes: 3 SL7(Scientific linux) and 2 SL6.
> > SL7 pacemaker installed from a standard repo (corosync - 2.3.4, pacemaker - 1.1.13-10), SL6 build from sources (same version).
> > The cluster not unified, some nodes have RA which other do not have. crmsh used for management.
> > SL6 nodes runs surprisingly smoothly, but SL7 steady segfaulting in the exactly same place.
> > Here is an example:
> >
> 
> Just from looking at the core dump, it looks like your processor doesn't
> support the SSE extensions used by the newer version of the code. You'll
> need to recompile and disable use of those extensions.
> 
> It looks like the code is using SSE 4.2, which is relatively new:
> 
> https://en.wikipedia.org/wiki/SSE4#SSE4.2
> 
> Cheers,
> Kristoffer
> 
> > Core was generated by `/usr/libexec/pacemaker/lrmd'.
> > Program terminated with signal 11, Segmentation fault.
> > #0  __strcasecmp_l_sse42 () at ../sysdeps/x86_64/multiarch/strcmp-sse42.S:164
> > 164             movdqu  (%rdi), %xmm1
> > (gdb) bt
> > #0  __strcasecmp_l_sse42 () at ../sysdeps/x86_64/multiarch/strcmp-sse42.S:164
> > #1  0x00007fed076136dc in crm_str_eq (a=<optimized out>, b=b at entry=0xed7070 "DRBD_D16", use_case=use_case at entry=0) at utils.c:1416
> > #2  0x00007fed073eaafa in is_op_blocked (rsc=0xed7070 "DRBD_D16") at services.c:644
> > #3  0x00007fed073eac1d in services_action_async (op=0xed58e0, action_callback=<optimized out>) at services.c:625
> > #4  0x0000000000404e4a in lrmd_rsc_execute_service_lib (cmd=0xed9e10, rsc=0xed4500) at lrmd.c:1242
> > #5  lrmd_rsc_execute (rsc=0xed4500) at lrmd.c:1308
> > #6  lrmd_rsc_dispatch (user_data=0xed4500, user_data at entry=<error reading variable: value has been optimized out>) at lrmd.c:1317
> > #7  0x00007fed07634c73 in crm_trigger_dispatch (source=0xed54c0, callback=<optimized out>, userdata=<optimized out>) at mainloop.c:107
> > #8  0x00007fed055cb7aa in g_main_dispatch (context=0xeb4d40) at gmain.c:3109
> > #9  g_main_context_dispatch (context=context at entry=0xeb4d40) at gmain.c:3708
> > #10 0x00007fed055cbaf8 in g_main_context_iterate (context=0xeb4d40, block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3779
> > #11 0x00007fed055cbdca in g_main_loop_run (loop=0xe96510) at gmain.c:3973
> > #12 0x00000000004028ce in main (argc=<optimized out>, argv=0x7ffe9b3b0fd8) at main.c:476
> >
> > Any help would be appreciated.
> >
> > --
> > Alexey Kurnosov
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> 
> -- 
> // Kristoffer Grönlund
> // kgronlund at suse.com
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