Re: [libvirt] [Xen-devel] [PATCH v2] libxl: Support PV consoles

On Fri, 2014-04-25 at 14:12 -0600, Jim Fehlig wrote: Thanks! I rebased to current master (no additional patches on my end) tried to test and suddenly libvirtd is segfaulting in libxl when I run virsh create. The fault is at "nexus->ev = 0" in osevent_release_nexus. I haven't changed my Xen and I updated libvirt from cc92ee32cde8d0ce0092d3ff30aece90af7b1781 + this patch to eec2f65946388102f8acdd63f13c21a8b9aae806, nothing in that range looks relevant. Any ideas? Ian. 2014-04-28 11:02:44.719+0000: 3029: info : libvirt version: 1.2.4 2014-04-28 11:02:44.719+0000: 3029: error : dnsmasqCapsRefreshInternal:726 : Cannot check dnsmasq binary dnsmasq: No such file or directory 2014-04-28 11:02:44.723+0000: 3029: error : virFirewallValidateBackend:156 : direct firewall backend requested, but /sbin/ebtables is not available: No such file or directory 2014-04-28 11:02:44.753+0000: 3029: error : virExec:417 : Cannot find 'pm-is-supported' in path: No such file or directory 2014-04-28 11:02:44.753+0000: 3029: warning : virQEMUCapsInit:946 : Failed to get host power management capabilities [Thread 0xb1553420 (LWP 3029) exited] 2014-04-28 11:02:45.679+0000: 3022: error : libxlDomainStart:1189 : internal error: libxenlight failed to create new domain 'libvirt-test' Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb5017420 (LWP 3022)] 0xb1706324 in osevent_release_nexus (gc=0xb5016904, nexi_idle=0x2a0b5c74, nexus=0x0) at libxl_event.c:119 119 libxl_event.c: No such file or directory. (gdb) bt #0 0xb1706324 in osevent_release_nexus (gc=0xb5016904, nexi_idle=0x2a0b5c74, nexus=0x0) at libxl_event.c:119 #1 0xb1706e60 in osevent_hook_pre_release (nexus=0x2a0b5ccc, nexi_idle=<optimized out>, ev=0x2a0b5cb8, gc=0xb5016904) at libxl_event.c:149 #2 libxl__ev_fd_deregister (gc=0xb5016904, ev=0x2a0b5cb8) at libxl_event.c:231 #3 0xb16dd2b4 in libxl_ctx_free (ctx=0x2a0b5c00) at libxl.c:156 #4 0xb173cbd6 in libxlDomainObjPrivateDispose () from /opt/libvirt/lib/libvirt/connection-driver/libvirt_driver_libxl.so #5 0xb6c8745a in virObjectUnref () from /opt/libvirt/lib/libvirt.so.0 #6 0xb173cc5a in libxlDomainObjPrivateFree () from /opt/libvirt/lib/libvirt/connection-driver/libvirt_driver_libxl.so #7 0xb6cb39ee in virDomainObjDispose () from /opt/libvirt/lib/libvirt.so.0 #8 0xb6c8745a in virObjectUnref () from /opt/libvirt/lib/libvirt.so.0 #9 0xb6cb4342 in virDomainObjListRemove () from /opt/libvirt/lib/libvirt.so.0 #10 0xb173ffb4 in libxlDomainCreateXML () from /opt/libvirt/lib/libvirt/connection-driver/libvirt_driver_libxl.so #11 0xb6d389d0 in virDomainCreateXML () from /opt/libvirt/lib/libvirt.so.0 #12 0x2a018b8a in remoteDispatchDomainCreateXML () #13 0x2a018ac8 in remoteDispatchDomainCreateXMLHelper () #14 0x2a054cee in virNetServerProgramDispatchCall () #15 0x2a05493a in virNetServerProgramDispatch () #16 0x2a04efc8 in virNetServerProcessMsg () #17 0x2a04f080 in virNetServerHandleJob () #18 0xb6c9d318 in virThreadPoolWorker () from /opt/libvirt/lib/libvirt.so.0 #19 0xb6c9cd9c in virThreadHelper () from /opt/libvirt/lib/libvirt.so.0 #20 0xb6be3ebc in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 #21 0xb6b517f8 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 #22 0xb6b517f8 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 Backtrace stopped: previous frame identical to this frame (corrupt stack?)