[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] signall 7 crash
Hi , We encounter a signal 7 crash in our enviroment with xen 4.0.1 one time. We start about 10~15 VMs at the same time and stop them after about 15 minutes repeately. I found the following log in xend.log wehn we want to stop this VM. [2011-07-13 06:50:12 12757] WARNING (image:552) domain 5f244213-2dc1-4700-9714-6b20c3f85fc4: device model failure: pid 4110: died due to signal 7 (core dumped); see /var/log/xen/qemu-dm-5f244213-2dc1-4700-9714-6b20c3f85fc4.log [2011-07-13 06:50:12 12757] WARNING (XendDomainInfo:2071) Domain has crashed: name=5f244213-2dc1-4700-9714-6b20c3f85fc4 id=144. 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 (gdb) bt #0 0x00000000004765d4 in memcpy_words (_addr=<value optimized out>, buf=<value optimized out>, _len=<value optimized out>, is_write=1) at exec-dm.c:492 #1 cpu_physical_memory_rw (_addr=<value optimized out>, buf=<value optimized out>, _len=<value optimized out>, is_write=1) at exec-dm.c:581 #2 0x00000000004292ad in cpu_physical_memory_write (opaque=0x7fce7d55d010, buf=<value optimized out>, size=64) at ../cpu-all.h:932 #3 e1000_receive (opaque=0x7fce7d55d010, buf=<value optimized out>, size=64) at /root/rpmbuild/BUILD/xen-4.0.1/tools/ioemu-dir/hw/e1000.c:640 #4 0x0000000000497c11 in qemu_send_packet (vc1=0x11dc9c0, buf=0x7fff0186ba10 "\377\377\377\377\377\377\270\254o}\202\343\b\006", size=60) at net.c:412 #5 0x00000000004985a8 in tap_send (opaque=<value optimized out>) at net.c:751 #6 0x000000000040895c in main_loop_wait (timeout=<value optimized out>) at /root/rpmbuild/BUILD/xen-4.0.1/tools/ioemu-dir/vl.c:3788 #7 0x000000000047798a in main_loop () at helper2.c:576 #8 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 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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