Hi, Dan sent me over to you, please let me know if i can provide additional informations
Softwareversions: ovirt-node-iso-3.6-0.999.201510221942.el7.centos.iso qemu-img-ev-2.3.0-29.1.el7.x86_64 qemu-kvm-ev-2.3.0-29.1.el7.x86_64 qemu-kvm-common-ev-2.3.0-29.1.el7.x86_64 qemu-kvm-tools-ev-2.3.0-29.1.el7.x86_64 ipxe-roms-qemu-20130517-7.gitc4bce43.el7.noarch kernel-3.10.0-229.14.1.el7.x86_64 libvirt-daemon-driver-nwfilter-1.2.8-16.el7_1.4.x86_64 libvirt-lock-sanlock-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-kvm-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-config-nwfilter-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-driver-secret-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-driver-nodedev-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-driver-qemu-1.2.8-16.el7_1.4.x86_64 libvirt-python-1.2.8-7.el7_1.1.x86_64 libvirt-daemon-driver-interface-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-driver-network-1.2.8-16.el7_1.4.x86_64 libvirt-daemon-driver-storage-1.2.8-16.el7_1.4.x86_64 libvirt-client-1.2.8-16.el7_1.4.x86_64 gperftools-libs-2.4-7.el7.x86_64 Commandline: /usr/libexec/qemu-kvm -name myvmname -S -machine rhel6.5.0,accel=kvm,usb=off -cpu Westmere -m 7168 -realtime mlock=off -smp 2,maxcpus=16,sockets=16,cores=1,threads=1 -uuid 5b6b8899-5a9d-4c07-a6aa-6171527ad319 -smbios type=1,manufacturer=oVirt,product=oVirt Node,version=3.6-0.999.201510221942.el7.centos,serial=30343536-3138-5A43-4A34-323630303253,uuid=5b6b8899-5a9d-4c07-a6aa-6171527ad319 -nographic -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/myvmname.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=2015-11-15T20:04:35,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4 -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x5 -drive if=none,id=drive-ide0-1-0,readonly=on,format=raw,serial= -device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive file=/rhev/data-center/00000002-0002-0002-0002-0000000000e2/5df61b84-8746-4460-b148-65cc0eb8d29c/images/8202b81d-6191-495f-8c9d-7d90baffaecf/d7665e07-1786-4051-aa26-0a3e1c9d2574,if=none,id=drive-virtio-disk0,format=qcow2,serial=8202b81d-6191-495f-8c9d-7d90baffaecf,cache=none,werror=stop,rerror=stop,aio=native -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 -netdev tap,fd=39,id=hostnet0,vhost=on,vhostfd=65 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:83:a2:0e,bus=pci.0,addr=0x3 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channels/5b6b8899-5a9d-4c07-a6aa-6171527ad319.com.redhat.rhevm.vdsm,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev socket,id=charchannel1,path=/var/lib/libvirt/qemu/channels/5b6b8899-5a9d-4c07-a6aa-6171527ad319.org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -msg timestamp=on Stack Trace: gdb --batch /usr/libexec/qemu-kvm core.14750.1447544080.dump -ex "set pagination off" -ex "thread apply all bt" [New LWP 14750] [New LWP 51911] [New LWP 14758] [New LWP 14759] [New LWP 14754] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/libexec/qemu-kvm -name myvmname -S -machine rhel6.5.0,accel=kvm,usb=o'. Program terminated with signal 11, Segmentation fault. #0 0x00007fa8ad2febe1 in tc_malloc () from /lib64/libtcmalloc.so.4 Thread 5 (Thread 0x7fa8a1ce0700 (LWP 14754)): #0 0x00007fa8a9eb9949 in syscall () from /lib64/libc.so.6 #1 0x00007fa8b19ed272 in qemu_event_wait () #2 0x00007fa8b19fb526 in call_rcu_thread () #3 0x00007fa8b02b1df5 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fa8a9ebf1ad in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7fa8a04dd700 (LWP 14759)): #0 0x00007fa8a9eb6257 in ioctl () from /lib64/libc.so.6 #1 0x00007fa8b17b8025 in kvm_vcpu_ioctl () #2 0x00007fa8b17b80de in kvm_cpu_exec () #3 0x00007fa8b17a5d7a in qemu_kvm_cpu_thread_fn () #4 0x00007fa8b02b1df5 in start_thread () from /lib64/libpthread.so.0 #5 0x00007fa8a9ebf1ad in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7fa8a0cde700 (LWP 14758)): #0 0x00007fa8a9eb6257 in ioctl () from /lib64/libc.so.6 #1 0x00007fa8b17b8025 in kvm_vcpu_ioctl () #2 0x00007fa8b17b80de in kvm_cpu_exec () #3 0x00007fa8b17a5d7a in qemu_kvm_cpu_thread_fn () #4 0x00007fa8b02b1df5 in start_thread () from /lib64/libpthread.so.0 #5 0x00007fa8a9ebf1ad in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7fa8a14df700 (LWP 51911)): #0 0x00007fa8b02b78a0 in sem_timedwait () from /lib64/libpthread.so.0 #1 0x00007fa8b19ed0c7 in qemu_sem_timedwait () #2 0x00007fa8b19708ac in worker_thread () #3 0x00007fa8b02b1df5 in start_thread () from /lib64/libpthread.so.0 #4 0x00007fa8a9ebf1ad in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7fa8b16afc00 (LWP 14750)): #0 0x00007fa8ad2febe1 in tc_malloc () from /lib64/libtcmalloc.so.4 #1 0x00007fa8b186b489 in malloc_and_trace () #2 0x00007fa8afbc047f in g_malloc () from /lib64/libglib-2.0.so.0 #3 0x00007fa8afbd666e in g_slice_alloc () from /lib64/libglib-2.0.so.0 #4 0x00007fa8b17cbffd in virtio_blk_handle_output () #5 0x00007fa8b197e6b6 in qemu_iohandler_poll () #6 0x00007fa8b197e296 in main_loop_wait () #7 0x00007fa8b177da4e in main () Thx Christian -----Ursprüngliche Nachricht----- Von: Dan Kenigsberg [mailto:dan...@redhat.com] Gesendet: Freitag, 13. November 2015 20:00 An: Grundmann, Christian <christian.grundm...@fabasoft.com> Cc: 'us...@ovirt.org' <us...@ovirt.org> Betreff: Re: [ovirt-users] Segmentation fault in libtcmalloc On Fri, Nov 13, 2015 at 07:56:14AM +0000, Grundmann, Christian wrote: > Hi, > i am using "ovirt-node-iso-3.6-0.999.201510221942.el7.centos.iso" (is > there something better to use?) fort he nodes, and have random crashes > of VMs The dumps are always the Same > > gdb --batch /usr/libexec/qemu-kvm core.45902.1447199164.dump [Thread > debugging using libthread_db enabled] Using host libthread_db library > "/lib64/libthread_db.so.1". > Core was generated by `/usr/libexec/qemu-kvm -name vmname -S -machine > rhel6.5.0,accel=kvm,usb=o'. > Program terminated with signal 11, Segmentation fault. > #0 0x00007f0c559c4353 in > tcmalloc::ThreadCache::ReleaseToCentralCache(tcmalloc::ThreadCache::Fr > eeList*, unsigned long, int) () from /lib64/libtcmalloc.so.4 > > > Didn't have the Problem with 3.5 el6 nodes, so don't no if ist centos7 > or 3.6 Due to the low-leveled-ness of the problem, I'd guess it's a qemu//lib64/libtcmalloc malloc bug, and not directly related to ovirt. Please report the precise version of qemu,kernel,libvirt and gperftools-libs to qemu-devel mailing list and the complete stack trace and qemu command line, if possible.
