[libvirt] libivrt issue report , 1.1.0 version, while migrate VMs between two hosts, is it solved or other way to avoid it, thanks

[Guozhonghua]

Libivrt 1.1.0
Migrate VM between two hosts using shell scripts.

The issues is occurred about every 5 minutes, using gdb and the back trace is below:

(gdb) c
Continuing.
[New Thread 0x7f78e7c11700 (LWP 48116)]
[New Thread 0x7f78cf7fe700 (LWP 48129)]
[New Thread 0x7f78ceffd700 (LWP 48306)]
[New Thread 0x7f78ce7fc700 (LWP 62351)]
[New Thread 0x7f78cdffb700 (LWP 62694)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f78ed24a700 (LWP 46120)]
0x00007f78ef553579 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0  0x00007f78ef553579 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f78ef555a45 in malloc () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f78ef545ae3 in vasprintf () from /lib/x86_64-linux-gnu/libc.so.6
#3  0x00007f78f07a3e54 in virVasprintf (strp=0x7f78ed249b38,
    fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p",
    list=0x7f78ed249c00) at util/virstring.c:334
#4  0x00007f78f077d998 in virLogVMessage (source=VIR_LOG_FROM_FILE,
    priority=VIR_LOG_DEBUG, filename=0x7f78f0959bed "rpc/virnetserver.c",
    linenr=182, funcname=0x7f78f095a500 "virNetServerHandleJob", metadata=0x0,
    fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p",
    vargs=0x7f78ed249c00) at util/virlog.c:836
#5  0x00007f78f077d85d in virLogMessage (source=VIR_LOG_FROM_FILE,
    priority=VIR_LOG_DEBUG, filename=0x7f78f0959bed "rpc/virnetserver.c",
    linenr=182, funcname=0x7f78f095a500 "virNetServerHandleJob", metadata=0x0,
    fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p")
    at util/virlog.c:773
#6  0x00007f78f08acd86 in virNetServerHandleJob (jobOpaque=0x7f78f305f6a0,
    opaque=0x7f78f304a360) at rpc/virnetserver.c:181
#7  0x00007f78f07a8a5e in virThreadPoolWorker (opaque=0x7f78f304a0a0)
    at util/virthreadpool.c:144
#8  0x00007f78f07a842a in virThreadHelper (data=0x7f78f3049ec0)
    at util/virthreadpthread.c:205
#9  0x00007f78ef897e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f78ef5c54bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()
(gdb) frame 6
#6  0x00007f78f08acd86 in virNetServerHandleJob (jobOpaque=0x7f78f305f6a0,
    opaque=0x7f78f304a360) at rpc/virnetserver.c:181
181     rpc/virnetserver.c: No such file or directory.
(gdb) p job
$1 = (virNetServerJobPtr) 0x7f78f305f6a0
(gdb) p srv
$2 = (virNetServerPtr) 0x7f78f304a360
(gdb) p job->client
$3 = (virNetServerClientPtr) 0x7f78f3054a60
(gdb) p job->msg
$4 = (virNetMessagePtr) 0x7f78f3051480
(gdb) p job->prog
$5 = (virNetServerProgramPtr) 0x7f78f3054c60
(gdb)
$6 = (virNetServerProgramPtr) 0x7f78f3054c60
(gdb) frame 5
#5  0x00007f78f077d85d in virLogMessage (source=VIR_LOG_FROM_FILE,
    priority=VIR_LOG_DEBUG, filename=0x7f78f0959bed "rpc/virnetserver.c",
    linenr=182, funcname=0x7f78f095a500 "virNetServerHandleJob", metadata=0x0,
    fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p")
    at util/virlog.c:773
773     util/virlog.c: No such file or directory.
(gdb) frame 3
#3  0x00007f78f07a3e54 in virVasprintf (strp=0x7f78ed249b38,
    fmt=0x7f78f0959c48 "server=%p client=%p message=%p prog=%p",
    list=0x7f78ed249c00) at util/virstring.c:334
334     util/virstring.c: No such file or directory.
(gdb) p strp
$7 = (char **) 0x7f78ed249b38
(gdb) p *strp
$8 = 0x0
(gdb) p list
$9 = (struct __va_list_tag *) 0x7f78ed249c00
(gdb) p *list
$10 = {gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7f78ed249ce8,
  reg_save_area = 0x7f78ed249c20}
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