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Re: [libvirt] 'make check' hangs



On 2011年11月30日 19:28, Daniel Veillard wrote:
On Wed, Nov 30, 2011 at 09:01:28AM +0000, Daniel P. Berrange wrote:
On Wed, Nov 30, 2011 at 11:18:23AM +0800, Wen Congyang wrote:
When I run 'make check', it hangs sometimes.

I use gdb to attach lt-virsh, and the following is the
backtrace:
(gdb) thread 1
[Switching to thread 1 (Thread 0x7fc6c04d5800 (LWP 24099))]#0  0x0000003bdce0804d in pthread_join () from /lib64/libpthread.so.0
(gdb) bt
#0  0x0000003bdce0804d in pthread_join () from /lib64/libpthread.so.0
#1  0x000000000041c0b3 in vshDeinit (ctl=0x7fff015f4570) at virsh.c:17262
#2  0x00000000004248d1 in main (argc=<value optimized out>, argv=0x7fff015f4728) at virsh.c:17608
(gdb) thread 2
[Switching to thread 2 (Thread 0x7fc6c04d4700 (LWP 24138))]#0  0x0000003bdc2dc053 in poll () from /lib64/libc.so.6
(gdb) bt
#0  0x0000003bdc2dc053 in poll () from /lib64/libc.so.6
#1  0x00007fc6c075359c in virEventPollRunOnce () at util/event_poll.c:619
#2  0x00007fc6c07527d7 in virEventRunDefaultImpl () at util/event.c:247
#3  0x000000000041bea3 in vshEventLoop (opaque=0x7fff015f4570) at virsh.c:16800
#4  0x00007fc6c0764702 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:157
#5  0x0000003bdce077f1 in start_thread () from /lib64/libpthread.so.0
#6  0x0000003bdc2e570d in clone () from /lib64/libc.so.6
(gdb)


I've seen this once, for the first time yesterday, but I can't
see any obvious change in either virsh, or the event code that
would have caused this to start happening in the past couple
of days.

   Same yesterday for me, first time too, on F14, I was blaming my system
as I got an oops earlier, but apparently that's not it ! I got it again,
and it's the virsh-synopsis test which fails to finish. I had to try 4
time before reproducing it...

Daniel


I see the problem too, generally it will hangs when testing "virsh
schedinfo".

Regards,
Osier


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