[libqb] qb_ipcs_connection_unref() errors while using QB_IPC_SOCKET

Andrei Belov defanator at gmail.com
Wed Apr 10 06:00:26 UTC 2013


Angus,

On Apr 10, 2013, at 9:24 , Angus Salkeld <asalkeld at redhat.com> wrote:

> On 10/04/13 08:52 +0400, Andrei Belov wrote:
>> Hello,
>> 
>> I'm facing the issue with qp_ipcs_connection_unref() errors while
>> using libqb (0.14.4) with pacemaker (1.1.8) under SunOS
>> with QB_IPC_SOCKET.
>> 
>> Pacemaker's daemons are being aborted on shutdown with the following in logs:
>> 
>> pr 10 04:05:06 [47131]      attrd:    error: qb_ipcs_connection_unref:         ref:0 state:3 (47131-47133-11)
>> Apr 10 04:05:13 [47130]       lrmd:    error: qb_ipcs_connection_unref:         ref:0 state:3 (47130-47133-9)
>> Apr 10 04:05:20 [47129] stonith-ng:    error: qb_ipcs_connection_unref:         ref:0 state:3 (47129-47133-13)
>> Apr 10 04:05:27 [47128]        cib:    error: qb_ipcs_connection_unref:         ref:0 state:3 (47128-47131-19)
>> 
>> What does it mean?
>> 
>> 
>> Backtraces:
>> 
>> Core was generated by `/opt/local/libexec/pacemaker/attrd'.
>> Program terminated with signal 6, Aborted.
>> #0  0xfffffd7fff0e061a in _lwp_kill () from /lib/64/libc.so.1
>> (gdb) bt
>> #0  0xfffffd7fff0e061a in _lwp_kill () from /lib/64/libc.so.1
>> #1  0xfffffd7fff0d4ddd in thr_kill () from /lib/64/libc.so.1
>> #2  0xfffffd7fff06a971 in raise () from /lib/64/libc.so.1
>> #3  0xfffffd7fff0400a1 in abort () from /lib/64/libc.so.1
>> #4  0xfffffd7fff0403f5 in _assert () from /lib/64/libc.so.1
>> #5  0xfffffd7fc021274e in qb_ipcs_connection_unref () from /opt/local/lib/libqb.so.0
>> #6  0x00000000004044f9 in main ()
> 
> Hi
> 
> The connection is reference counted, and it is getting dereferenced
> one too many times. This is due to differences in the behaviour of
> sockets on solaris and linux. Basically the code path for solaris
> shutdown is not well tested by me.
> 
> (patches welcome)

Thanks, I'll try to examine this deeper.

I see "tests" subdirectory in libqb - what is the right way to run those?


> 
> -Angus
> 
>> 
>> Core was generated by `/opt/local/libexec/pacemaker/cib'.
>> Program terminated with signal 6, Aborted.
>> #0  0xfffffd7fff0f061a in _lwp_kill () from /lib/64/libc.so.1
>> (gdb) bt
>> #0  0xfffffd7fff0f061a in _lwp_kill () from /lib/64/libc.so.1
>> #1  0xfffffd7fff0e4ddd in thr_kill () from /lib/64/libc.so.1
>> #2  0xfffffd7fff07a971 in raise () from /lib/64/libc.so.1
>> #3  0xfffffd7fff0500a1 in abort () from /lib/64/libc.so.1
>> #4  0xfffffd7fff0503f5 in _assert () from /lib/64/libc.so.1
>> #5  0xfffffd7fc021274e in qb_ipcs_connection_unref () from /opt/local/lib/libqb.so.0
>> #6  0x0000000000410438 in cib_shutdown ()
>> #7  0xfffffd7fbfc5533f in crm_signal_dispatch (source=0x49be80, callback=<optimized out>, userdata=<optimized out>)
>>   at mainloop.c:203
>> #8  0xfffffd7fc555f9e0 in g_main_context_dispatch () from /opt/local/lib/libglib-2.0.so.0
>> #9  0xfffffd7fc555fd40 in g_main_context_iterate.isra.24 () from /opt/local/lib/libglib-2.0.so.0
>> #10 0xfffffd7fc5560152 in g_main_loop_run () from /opt/local/lib/libglib-2.0.so.0
>> #11 0x0000000000411056 in cib_init ()
>> #12 0x000000000041163e in main ()
>> 
>> Core was generated by `/opt/local/libexec/pacemaker/lrmd'.
>> Program terminated with signal 6, Aborted.
>> #0  0xfffffd7fff0e061a in _lwp_kill () from /lib/64/libc.so.1
>> (gdb) bt
>> #0  0xfffffd7fff0e061a in _lwp_kill () from /lib/64/libc.so.1
>> #1  0xfffffd7fff0d4ddd in thr_kill () from /lib/64/libc.so.1
>> #2  0xfffffd7fff06a971 in raise () from /lib/64/libc.so.1
>> #3  0xfffffd7fff0400a1 in abort () from /lib/64/libc.so.1
>> #4  0xfffffd7fff0403f5 in _assert () from /lib/64/libc.so.1
>> #5  0xfffffd7fc021274e in qb_ipcs_connection_unref () from /opt/local/lib/libqb.so.0
>> #6  0xfffffd7fc02128a4 in qb_ipcs_disconnect () from /opt/local/lib/libqb.so.0
>> #7  0xfffffd7fc0212995 in qb_ipcs_unref () from /opt/local/lib/libqb.so.0
>> #8  0xfffffd7fc02129c7 in qb_ipcs_destroy () from /opt/local/lib/libqb.so.0
>> #9  0xfffffd7fbfc55a3f in mainloop_del_ipc_server (server=<optimized out>) at mainloop.c:517
>> #10 0x00000000004041cd in lrmd_shutdown ()
>> #11 0xfffffd7fbfc5533f in crm_signal_dispatch (source=0x48ad40, callback=<optimized out>, userdata=<optimized out>)
>>   at mainloop.c:203
>> #12 0xfffffd7fc555f9e0 in g_main_context_dispatch () from /opt/local/lib/libglib-2.0.so.0
>> #13 0xfffffd7fc555fd40 in g_main_context_iterate.isra.24 () from /opt/local/lib/libglib-2.0.so.0
>> #14 0xfffffd7fc5560152 in g_main_loop_run () from /opt/local/lib/libglib-2.0.so.0
>> #15 0x00000000004045e3 in main ()
>> 
>> Core was generated by `/opt/local/libexec/pacemaker/stonithd'.
>> Program terminated with signal 6, Aborted.
>> #0  0xfffffd7fff11061a in _lwp_kill () from /lib/64/libc.so.1
>> (gdb) bt
>> #0  0xfffffd7fff11061a in _lwp_kill () from /lib/64/libc.so.1
>> #1  0xfffffd7fff104ddd in thr_kill () from /lib/64/libc.so.1
>> #2  0xfffffd7fff09a971 in raise () from /lib/64/libc.so.1
>> #3  0xfffffd7fff0700a1 in abort () from /lib/64/libc.so.1
>> #4  0xfffffd7fff0703f5 in _assert () from /lib/64/libc.so.1
>> #5  0xfffffd7fc021274e in qb_ipcs_connection_unref () from /opt/local/lib/libqb.so.0
>> #6  0xfffffd7fc02128a4 in qb_ipcs_disconnect () from /opt/local/lib/libqb.so.0
>> #7  0xfffffd7fc0212995 in qb_ipcs_unref () from /opt/local/lib/libqb.so.0
>> #8  0xfffffd7fc02129c7 in qb_ipcs_destroy () from /opt/local/lib/libqb.so.0
>> #9  0x0000000000405e60 in ?? ()
>> #10 0x0000000000407d28 in main ()
>> 
>> 
>> PS:
>> while reproducing the above, just caught the same with corosync (2.3.0):
>> 
>> Core was generated by `corosync'.
>> Program terminated with signal 6, Aborted.
>> #0  0xfffffd7fff1e061a in _lwp_kill () from /lib/64/libc.so.1
>> (gdb) bt
>> #0  0xfffffd7fff1e061a in _lwp_kill () from /lib/64/libc.so.1
>> #1  0xfffffd7fff1d4ddd in thr_kill () from /lib/64/libc.so.1
>> #2  0xfffffd7fff16a971 in raise () from /lib/64/libc.so.1
>> #3  0xfffffd7fff1400a1 in abort () from /lib/64/libc.so.1
>> #4  0xfffffd7fff1403f5 in _assert () from /lib/64/libc.so.1
>> #5  0xfffffd7fc021274e in qb_ipcs_connection_unref () from /opt/local/lib/libqb.so.0
>> #6  0xfffffd7fc02128a4 in qb_ipcs_disconnect () from /opt/local/lib/libqb.so.0
>> #7  0xfffffd7fc0212995 in qb_ipcs_unref () from /opt/local/lib/libqb.so.0
>> #8  0xfffffd7fc02129c7 in qb_ipcs_destroy () from /opt/local/lib/libqb.so.0
>> #9  0x00000000004264e2 in cs_ipcs_service_destroy ()
>> #10 0x00000000004270e0 in ?? ()
>> #11 0xfffffd7fc0210ff4 in job_dispatch () from /opt/local/lib/libqb.so.0
>> #12 0xfffffd7fc020fcb4 in qb_loop_run () from /opt/local/lib/libqb.so.0
>> #13 0x000000000042b551 in main ()
>> 
>> so it looks like libqb related issue for me.
>> 
>> 
>> Any help would be greatly appreciated!
>> 
>> 
>> Best regards,
>> Andrei
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