[libvirt] libvirt 3.5.0 locks

Wed Jul 26 12:15:22 UTC 2017

2017-07-14 12:21 GMT+03:00 Martin Kletzander <mkletzan at redhat.com>:
> On Fri, Jul 14, 2017 at 12:18:06PM +0300, Vasiliy Tolstov wrote:
>>
>> 2017-07-14 12:07 GMT+03:00 Martin Kletzander <mkletzan at redhat.com>:
>>
>>>>> What's be stacktrace of libvirtd in this case?
>>>>>
>>>>
>>>>
>>>> How can i get it when new lock appears?
>>>>
>>>
>>> gdb -batch -p $(pgrep libvirtd) -ex 't a a bt'
>>>
>>>
>>
>> I'm try, does i need to have debugging symbols on this host ?
>>
>
> That helps a lot
>

I can't now install dbg symbols but can get backtraces:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007fe2d463eaed in poll () from /lib/x86_64-linux-gnu/libc.so.6

Thread 47 (Thread 0x7fe2967fc700 (LWP 23281)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 46 (Thread 0x7fe2b2f99700 (LWP 18710)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 45 (Thread 0x7fe2b379a700 (LWP 18709)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 44 (Thread 0x7fe2b3f9b700 (LWP 18708)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 43 (Thread 0x7fe2b479c700 (LWP 18707)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 42 (Thread 0x7fe2b4f9d700 (LWP 18706)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 41 (Thread 0x7fe2bc7b2700 (LWP 18705)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 40 (Thread 0x7fe2bcfb3700 (LWP 18704)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 39 (Thread 0x7fe2bd7b4700 (LWP 18703)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 38 (Thread 0x7fe2bdfb5700 (LWP 18702)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 37 (Thread 0x7fe2be7b6700 (LWP 18701)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 36 (Thread 0x7fe2befb7700 (LWP 18700)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 35 (Thread 0x7fe2bf7b8700 (LWP 18699)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 34 (Thread 0x7fe2bffb9700 (LWP 18698)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 33 (Thread 0x7fe2c07ba700 (LWP 18697)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 32 (Thread 0x7fe2c0fbb700 (LWP 18696)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 31 (Thread 0x7fe2c17bc700 (LWP 18695)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 30 (Thread 0x7fe2c1fbd700 (LWP 18694)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 29 (Thread 0x7fe2c27be700 (LWP 18693)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 28 (Thread 0x7fe2c2fbf700 (LWP 18692)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 27 (Thread 0x7fe2c37c0700 (LWP 18691)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 26 (Thread 0x7fe2c3fc1700 (LWP 18690)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 25 (Thread 0x7fe2c47c2700 (LWP 18689)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 24 (Thread 0x7fe2c4fc3700 (LWP 18688)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7fe2c57c4700 (LWP 18687)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7fe2c5fc5700 (LWP 18686)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a7664 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7fe2c67c6700 (LWP 18685)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7fe2c6fc7700 (LWP 18684)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7fe2c77c8700 (LWP 18683)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7fe2c7fc9700 (LWP 18682)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7fe2c87ca700 (LWP 18681)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7fe2c8fcb700 (LWP 18680)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7fe2c97cc700 (LWP 18679)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7fe2c9fcd700 (LWP 18678)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7fe2ca7ce700 (LWP 18677)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7fe2cafcf700 (LWP 18676)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7fe2cb7d0700 (LWP 18675)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7fe2cbfd1700 (LWP 18674)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7fe2cc7d2700 (LWP 18673)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7fe2ccfd3700 (LWP 18672)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7fe2cd7d4700 (LWP 18671)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fe2cdfd5700 (LWP 18670)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2b5973d5b in qemuMonitorSend () from
/usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#3  0x00007fe2b5987ab5 in ?? () from
/usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#4  0x00007fe2b5989ff1 in qemuMonitorJSONGetMemoryStats () from
/usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#5  0x00007fe2b599adb7 in ?? () from
/usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#6  0x00007fe2b599af7a in ?? () from
/usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#7  0x00007fe2b599b54d in ?? () from
/usr/lib/libvirt/connection-driver/libvirt_driver_qemu.so
#8  0x00007fe2d826e0d5 in virConnectGetAllDomainStats () from
/usr/lib/libvirt.so.0
#9  0x00005556cea0ec70 in ?? ()
#10 0x00007fe2d82ca0d9 in virNetServerProgramDispatch () from
/usr/lib/libvirt.so.0
#11 0x00005556cea3fbe8 in ?? ()
#12 0x00007fe2d81a7598 in ?? () from /usr/lib/libvirt.so.0
#13 0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#14 0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fe2ce7d6700 (LWP 18669)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fe2cefd7700 (LWP 18668)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fe2cf7d8700 (LWP 18667)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fe2cffd9700 (LWP 18666)):
#0  0x00007fe2d491604f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fe2d81a6bc6 in virCondWait () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81a76a3 in ?? () from /usr/lib/libvirt.so.0
#3  0x00007fe2d81a6968 in ?? () from /usr/lib/libvirt.so.0
#4  0x00007fe2d4912064 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007fe2d464762d in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fe2d8a198c0 (LWP 18664)):
#0  0x00007fe2d463eaed in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fe2d81514d7 in virEventPollRunOnce () from /usr/lib/libvirt.so.0
#2  0x00007fe2d81500b1 in virEventRunDefaultImpl () from /usr/lib/libvirt.so.0
#3  0x00007fe2d82c446d in virNetDaemonRun () from /usr/lib/libvirt.so.0
#4  0x00005556cea06282 in ?? ()
#5  0x00007fe2d4580b45 in __libc_start_main () from
/lib/x86_64-linux-gnu/libc.so.6
#6  0x00005556cea06c37 in ?? ()

-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru