Hi ,
Besides signal 7 crash, we also encounter a signal 11 crash in our
enviroment with xen 4.0.1 .
We start about 10~15 VMs at the same time and stop them after about 15
minutes repeately.
The xml file of our VMs is like this
<domain type=''xen'' id=''274''>
<name>45087c07-c929-4e41-bc11-215fa7088ee5</name>
<uuid>45087c07-c929-4e41-bc11-215fa7088ee5</uuid>
<memory>256000</memory>
<currentMemory>256000</currentMemory>
<vcpu cpuset=''1-3''>1</vcpu>
<os>
<type>hvm</type>
<loader>/usr/lib/xen/boot/hvmloader</loader>
<boot dev=''hd''/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset=''utc''/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/lib64/xen/bin/qemu-dm</emulator>
<disk type=''file'' device=''disk''>
<driver name=''file''/>
<source
file=''/07dbc62b-3bd7-41d7-865a-6632019e2f2b''/>
<target dev=''hda'' bus=''ide''/>
</disk>
<interface type=''bridge''>
<mac address=''00:16:3e:00:01:00''/>
<source bridge=''teprod''/>
<script path=''/etc/xen/scripts/vif-bridge''/>
<target dev=''vif274.0''/>
<model type=''e1000''/>
</interface>
<serial type=''pty''>
<source path=''/dev/pts/3''/>
<target port=''0''/>
</serial>
<console type=''pty''
tty=''/dev/pts/3''>
<source path=''/dev/pts/3''/>
<target type=''serial'' port=''0''/>
</console>
<input type=''tablet'' bus=''usb''/>
<input type=''mouse'' bus=''ps2''/>
<graphics type=''vnc'' port=''5903''
autoport=''yes'' keymap=''en-us''/>
</devices>
</domain>
We try to use the core dump file of qemu-dm and gdb to find the root
cause, it shows
#0 0x00007fba3c8e0553 in select () from /lib64/libc.so.6
#1 0x00000000004088e9 in main_loop_wait (timeout=<value optimized
out>) at /root/rpmbuild/BUILD/xen-4.0.1/tools/ioemu-dir/vl.c:3782
#2 0x000000000047798a in main_loop () at helper2.c:576
#3 0x000000000040ccd1 in main (argc=<value optimized out>,
argv=<value optimized out>, envp=<value optimized out>)
at /root/rpmbuild/BUILD/xen-4.0.1/tools/ioemu-dir/vl.c:6150
Is this a known issue or is there any patch to fix it?
Thanks
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