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[libvirt] [PATCH v2 0/8] Dump domain's IP addresses
by Michal Privoznik 04 Jan '13

04 Jan '13

It's been a while since I tried get this in. I've reworked the patches, the exposed API, and start new round of reviews. Moreover, during work I've come to point, where extending qemu guest agent seemed wise: http://lists.nongnu.org/archive/html/qemu-devel/2012-12/msg03264.html Therefore I am introducing 'flags' field, which can contain some boolean values we don't have yet, e.g. IFF_UP, IFF_PROMISC, etc. Re: 'dstaddr' field in struct _virDomainInterfaceIPAddress; It's basically a join of: union { char *dstaddr; /* for IFF_POINTOPOINT interface */ char *broadaddr; /* for IFF_BROADCAST interface */ } Since an interface cannot has both flags set (see man 3 getifaddrs) I've joined both into one 'char *dstaddr'. I know it is not mnemonic as the union, so I left it for discussion. I can change it if you want to. diff to v1: -don't return array of objects, but array of pointer to objects instead Michal Privoznik (8): Introduce virDomainInterfacesAddresses API Introduce virDomainInterfaceFree API qemu_agent: Implement 'guest-network-get-interfaces' command handling qemu: Implement qemuDomainInterfacesAddresses virsh: Expose virDomainInterfacesAddresses remote: Implement virDomainInterfacesAddresses python: Expose virDomainInterfacesAddresses python: create example for dumping domain IP addresses daemon/remote.c | 140 ++++++++++++++++++++++++++++++++ examples/python/Makefile.am | 2 +- examples/python/README | 1 + examples/python/domipaddrs.py | 50 ++++++++++++ include/libvirt/libvirt.h.in | 51 ++++++++++++ python/generator.py | 3 + python/libvirt-override-api.xml | 7 ++ python/libvirt-override.c | 120 ++++++++++++++++++++++++++++ src/driver.h | 6 ++ src/libvirt.c | 107 +++++++++++++++++++++++++ src/libvirt_public.syms | 7 ++ src/qemu/qemu_agent.c | 171 ++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_agent.h | 2 + src/qemu/qemu_driver.c | 68 ++++++++++++++++ src/remote/remote_driver.c | 94 ++++++++++++++++++++++ src/remote/remote_protocol.x | 27 ++++++- src/remote_protocol-structs | 27 +++++++ tools/virsh-domain.c | 104 ++++++++++++++++++++++++ 18 files changed, 985 insertions(+), 2 deletions(-) create mode 100755 examples/python/domipaddrs.py -- 1.8.0.2

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[libvirt] problem in pciFindStubDriver
by Chunyan Liu 04 Jan '13

04 Jan '13

For Xen PV guests, pciback is the only working driver, pci-stub doesn't work. Current function finds pci-stub driver first, if pci-stub doesn't exist, find pciback. It won't work for Xen PV guests since it will find pci-stub driver and return, but in fact it needs pciback. One way is to prefer pciback rather than pci-stub like in following patch. But that will change the behaviour of other drivers too. Is there any preferred aprroach to handle this? diff --git a/src/util/virpci.c b/src/util/virpci.c index 5971764..c0a1c05 100644 --- a/src/util/virpci.c +++ b/src/util/virpci.c @@ -861,22 +861,22 @@ pciFindStubDriver(void) int probed = 0; recheck: - if (pciDriverDir(&drvpath, "pci-stub") < 0) { + if (pciDriverDir(&drvpath, "pciback") < 0) { return NULL; } if (virFileExists(drvpath)) { VIR_FREE(drvpath); - return "pci-stub"; + return "pciback"; } - if (pciDriverDir(&drvpath, "pciback") < 0) { + if (pciDriverDir(&drvpath, "pci-stub") < 0) { return NULL; } if (virFileExists(drvpath)) { VIR_FREE(drvpath); - return "pciback"; + return "pci-stub"; } VIR_FREE(drvpath);

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[libvirt] [PATCH] qemu: Don't parse log output when starting up a domain
by Michal Privoznik 04 Jan '13

04 Jan '13

Despite our great effort we still parsed qemu log output. We wouldn't notice unless qemu changed the format of the logs slightly. Anyway, now we should gather all interesting knobs like pty paths from monitor. Moreover, since for historical reasons the first console can be just an alias to the first serial port, we need to check this and copy the pty path if that's the case to the first console. --- src/qemu/qemu_capabilities.c | 7 +++++++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_process.c | 20 ++++++++++++++++++-- 3 files changed, 26 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 17e6679..f49a31c 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1695,6 +1695,7 @@ qemuCapsPtr qemuCapsNewCopy(qemuCapsPtr caps) virBitmapCopy(ret->flags, caps->flags); + ret->usedQMP = caps->usedQMP; ret->version = caps->version; ret->kvmVersion = caps->kvmVersion; ret->arch = caps->arch; @@ -2633,3 +2634,9 @@ qemuCapsCacheFree(qemuCapsCachePtr cache) virMutexDestroy(&cache->lock); VIR_FREE(cache); } + +bool +qemuCapsUsedQMP(qemuCapsPtr caps) +{ + return caps->usedQMP; +} diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 3457852..1417d7f 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -241,4 +241,5 @@ int qemuCapsParseDeviceStr(qemuCapsPtr caps, const char *str); VIR_ENUM_DECL(qemuCaps); +bool qemuCapsUsedQMP(qemuCapsPtr caps); #endif /* __QEMU_CAPABILITIES_H__*/ diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index eac6553..ff88192 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -1532,6 +1532,7 @@ qemuProcessFindCharDevicePTYsMonitor(virDomainObjPtr vm, virHashTablePtr paths) { bool chardevfmt = qemuCapsGet(caps, QEMU_CAPS_CHARDEV); + int i = 0; if (qemuProcessLookupPTYs(vm->def->serials, vm->def->nserials, paths, chardevfmt) < 0) @@ -1544,8 +1545,23 @@ qemuProcessFindCharDevicePTYsMonitor(virDomainObjPtr vm, if (qemuProcessLookupPTYs(vm->def->channels, vm->def->nchannels, paths, chardevfmt) < 0) return -1; + /* For historical reasons, console[0] can be just an alias + * for serial[0]; That's why we need to update it as well */ + if (vm->def->nconsoles) { + virDomainChrDefPtr chr = vm->def->consoles[0]; + + if (vm->def->nserials && + chr->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE && + chr->targetType == VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL) { + /* yes, the first console is just an alias for serials[0] */ + i = 1; + if (virDomainChrSourceDefCopy(&chr->source, + &((vm->def->serials[0])->source)) < 0) + return -1; + } + } - if (qemuProcessLookupPTYs(vm->def->consoles, vm->def->nconsoles, + if (qemuProcessLookupPTYs(vm->def->consoles + i, vm->def->nconsoles - i, paths, chardevfmt) < 0) return -1; @@ -1650,7 +1666,7 @@ qemuProcessWaitForMonitor(virQEMUDriverPtr driver, virHashTablePtr paths = NULL; qemuDomainObjPrivatePtr priv; - if (pos != -1) { + if (!qemuCapsUsedQMP(caps) && pos != -1) { if ((logfd = qemuDomainOpenLog(driver, vm, pos)) < 0) return -1; -- 1.8.0.2

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[libvirt] [ESX:Error] HTTP 403 error for CURL upload operation
by Ata Bohra 04 Jan '13

04 Jan '13

Hi Everyone, Merry Christmas and Happy New Year! I'm trying to upload disk to ESX 5.0 server using the URL obtained by the server (during VM installation process); I'm using libcurl support in libvirt to upload the disk, but I get this error on file upload:----------------------* About to connect() to <ip> port 443 (#1) * Trying <ip>... * connected * found 153 certificates in /etc/ssl/certs/ca-certificates.crt * server certificate verification SKIPPED * compression: NULL * cipher: AES-128-CBC * MAC: SHA1 > PUT /ha-nfc/52c6d592-7636-67c5-29f3-d5b373be4f42/disk-0.vmdk HTTP/1.1 User-Agent: libvirt-esx Host: <ip> Accept: */* Cookie: vmware_soap_session="521af33d-2bbe-38aa-21e8-13d474ccb023" Content-Type: text/xml; charset=UTF-8 SOAPAction: "urn:vim25" Content-Length: 7021568< HTTP/1.1 403 Forbidden < Date: Sun, 30 Dec 2012 01:28:19 GMT < Connection: close < Content-Type: text; charset=plain < Content-Length: 44 ----------------------To achieve this operation I've added a routine to support file Upload (for ESX driver as currently it only support buffer upload), I verified its functioning my uploading a file using datastore based URL:(http(s)//<ip>/file??dcPath=ha-datacenter?dsName=xxx). CURL options provided by me are; ----------- curl_easy_setopt(curl->handle, CURLOPT_UPLOAD, 1L); curl_easy_setopt(curl->handle, CURLOPT_URL, url); curl_easy_setopt(curl->handle, CURLOPT_READDATA, <data pointer>); curl_easy_setopt(curl->handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) fileData->size); curl_easy_setopt(curl->handle, CURLOPT_READFUNCTION, <read function>); curl_easy_setopt(curl->handle, CURLOPT_VERBOSE, 1);------------------------ My understanding is there needs to be some tuning done to ESX server to accept this upload operation, please suggest if anyone has faced this issue before. Thanks!Ata

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[libvirt] RFC: An "embedded" mode for QEMU/LXC drivers
by Daniel P. Berrange 04 Jan '13

04 Jan '13

This is something I was thinking about a little over the christmas break. I've no intention of implementing this in the immediate future, but wanted to post it while it was fresh in my mind. Historically we have had 2 ways of using the stateful drivers like QEMU/LXC/UML/etc. - "system mode" - privileged libvirtd, one per host, started at boot - "session mode" - unprivileged libvirtd, one per non-root user, autostarted Within context of each daemon, VM name uniqueness is enforced. Operating via the daemon means that all applications connected to libvirtd get the same world view. This single world view is exactly what you want when dealing with server / cloud / desktop virtualization, because it means tools like 'virt-top', 'virt-viewer', 'virsh' can see the same VMs as virt-manager / oVirt / OpenStack / Boxes / etc. Recently we've seen increasing importance of a new use case which I will refer to as "embedded" virtualization. The best example of this use case is libguestfs which has long run a dedicated QEMU instance, but just now switched to using libvirtd. The other use case is virt-sandbox which is doing application confinement using LXC/KVM. In both these cases, operating via libvirtd is sub-optimal. Users of so called "embedded" virtualization, explicitly don't want to have interaction with other libvirt applications. They likely don't even want to expose the concept of virtualization to their users. For them virtualization is intended to be just a hidden impl detail of their application. Some issues which arise when using embedded virtualization - Need to invent sensible unique names for each VM launched. This leads to pollution of logfiles for QEMU instances run. - User sees libguestfs / virt-sandbox VMs in virt-manager / oVirt which they may then try to "manage", breaking libguestfs / etc - Disassociated process context, so if 'virt-sandbox' is placed in a cgroup, the VMs it launches are in a different cgroup. Likewise if custom env variables are set, work is needed to propagate those to VMs. This leads me to wonder whether it is worth exploring the idea of a new type of libvirt connection. - "embed mode" - no libvirtd, driver runs in application context The idea here is to take libvirtd out of the equation and directly use the QEMU driver code in the libvirt.so client / application. Since libvirtd (mostly) uses the same APIs as the public libvirt.so clients, there isn't much required to make this work. - A way for the application to invoke virStateInit for the driver - Application must provide an event loop impl - A way to specify alternative dirs for logs/state/config/etc An application would access this mode using a different path for the driver, and specifying the path to use for logs/state/config etc. eg libguestfs might use qemu:///embed?statedir=/tmp/libguestfsXXXXX/ to get an instance of the QEMU driver that is completely private to itself. One question is whether there should be a single embed instance per process, or whether an application should be allowed to open multiple completely isolated embed instances. The latter might require is to eliminate more static variables in our code. This kind of embedded mode is not without its downsides though - How to access virtual network / storage / node device APIs ? - Extra SELinux policy work to allow each app to have the same kind of privileges that libvirtd has to let it start VMs - How to troubleshoot - can't use things like 'virsh qemu-monitor-command' since the embedded instance is private to the application in question. One answer to the latter question, might be to actually allow the application to expose the same RPC service as libvirtd does. So virsh could connect to libguestfs using qemu:///embed?socketdir=/tmp/libguestfsXXXXX/libvirt-sock For the question of network/storage/node device access, the long term answer is probably to split up the system libvirtd instance into separate pieces. eg a virtnodedeviced, virtnetworkd, virstoraged, virtqemud, virtlxcd, etc. Now a client app would connect to their embedded QEMU instances, but to the shared nodedevice/network/storage daemons. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|

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[libvirt] Build failed in Jenkins: libvirt-build #472
by Jenkins CI 04 Jan '13

04 Jan '13

See <http://honk.sigxcpu.org:8001/job/libvirt-build/472/changes> Changes: [eblake] maint: update to latest gnulib ------------------------------------------ [...truncated 5806 lines...] GEN wchar.h GEN wctype.h make all-am make[3]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/gnulib/lib'> CC allocator.lo CC areadlink.lo CC base64.lo CC binary-io.lo CC bitrotate.lo CC c-ctype.lo CC c-strcasecmp.lo CC c-strncasecmp.lo CC c-strcasestr.lo CC careadlinkat.lo CC cloexec.lo CC count-one-bits.lo CC md5.lo CC sha256.lo CC dirname-lgpl.lo CC basename-lgpl.lo CC stripslash.lo CC fd-hook.lo CC freading.lo CC localcharset.lo CC lock.lo CC malloca.lo CC nonblocking.lo CC passfd.lo CC physmem.lo CC pipe2.lo CC sig-handler.lo CC sockets.lo CC stat-time.lo CC stdio.lo CC strnlen1.lo CC sys_socket.lo CC tempname.lo CC threadlib.lo CC unistd.lo CC wctype-h.lo CC xsize.lo CC asnprintf.lo CC fclose.lo CC fcntl.lo CC fflush.lo CC fpurge.lo CC fseek.lo CC fseeko.lo CC ioctl.lo CC mktime.lo CC perror.lo CC printf-args.lo CC printf-parse.lo CC strerror.lo CC strerror_r.lo CC vasnprintf.lo CCLD libgnu.la GEN charset.alias GEN ref-add.sed GEN ref-del.sed make[3]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/gnulib/lib'> make[2]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/gnulib/lib'> Making all in include make[2]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/include'> Making all in libvirt make[3]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/include/libvirt'> make[3]: Nothing to be done for `all'. make[3]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/include/libvirt'> make[3]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/include'> make[3]: Nothing to be done for `all-am'. make[3]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/include'> make[2]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/include'> Making all in src make[2]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src'> GEN libvirt.syms GEN libvirt.def make all-am make[3]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src'> CC libvirt_util_la-viralloc.lo CC libvirt_util_la-virarch.lo CC libvirt_util_la-viratomic.lo CC libvirt_util_la-viraudit.lo CC libvirt_util_la-virauth.lo CC libvirt_util_la-virauthconfig.lo CC libvirt_util_la-virbitmap.lo CC libvirt_util_la-virbuffer.lo CC libvirt_util_la-vircgroup.lo CC libvirt_util_la-vircommand.lo CC libvirt_util_la-virconf.lo CC libvirt_util_la-virdbus.lo CC libvirt_util_la-virdnsmasq.lo CC libvirt_util_la-virebtables.lo CC libvirt_util_la-virerror.lo CC libvirt_util_la-virevent.lo CC libvirt_util_la-vireventpoll.lo CC libvirt_util_la-virfile.lo CC libvirt_util_la-virhash.lo CC libvirt_util_la-virhashcode.lo CC libvirt_util_la-virhook.lo CC libvirt_util_la-virinitctl.lo CC 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libvirt_util_la-virsysinfo.lo CC libvirt_util_la-virthread.lo CC libvirt_util_la-virthreadpool.lo CC libvirt_util_la-virtime.lo CC libvirt_util_la-virtypedparam.lo CC libvirt_util_la-virusb.lo CC libvirt_util_la-viruri.lo CC libvirt_util_la-virutil.lo CC libvirt_util_la-viruuid.lo CC libvirt_util_la-virxml.lo CCLD libvirt_util.la CC libvirt_conf_la-netdev_bandwidth_conf.lo CC libvirt_conf_la-netdev_vport_profile_conf.lo CC libvirt_conf_la-netdev_vlan_conf.lo CC libvirt_conf_la-capabilities.lo CC libvirt_conf_la-domain_conf.lo CC libvirt_conf_la-domain_audit.lo CC libvirt_conf_la-domain_nwfilter.lo CC libvirt_conf_la-snapshot_conf.lo CC libvirt_conf_la-domain_event.lo CC libvirt_conf_la-network_conf.lo CC libvirt_conf_la-nwfilter_params.lo CC libvirt_conf_la-nwfilter_ipaddrmap.lo CC libvirt_conf_la-nwfilter_conf.lo CC libvirt_conf_la-node_device_conf.lo CC libvirt_conf_la-storage_conf.lo CC libvirt_conf_la-storage_encryption_conf.lo CC libvirt_conf_la-interface_conf.lo CC libvirt_conf_la-secret_conf.lo CC libvirt_conf_la-cpu_conf.lo CC libvirt_conf_la-virconsole.lo CC libvirt_conf_la-device_conf.lo CCLD libvirt_conf.la CC libvirt_cpu_la-cpu.lo CC libvirt_cpu_la-cpu_generic.lo CC libvirt_cpu_la-cpu_x86.lo CC libvirt_cpu_la-cpu_s390.lo CC libvirt_cpu_la-cpu_arm.lo CC libvirt_cpu_la-cpu_map.lo CC libvirt_cpu_la-cpu_powerpc.lo CCLD libvirt_cpu.la CC libvirt_vmx_la-vmx.lo CCLD libvirt_vmx.la CC libvirt_xenxs_la-xen_sxpr.lo CC libvirt_xenxs_la-xen_xm.lo CCLD libvirt_xenxs.la CC libvirt_driver_la-driver.lo CC libvirt_driver_la-datatypes.lo CC libvirt_driver_la-fdstream.lo CC libvirt_driver_la-nodeinfo.lo CC libvirt_driver_la-libvirt.lo CC libvirt_driver_la-lock_manager.lo CC libvirt_driver_la-lock_driver_nop.lo CC libvirt_driver_la-domain_lock.lo CCLD libvirt_driver.la CC libvirt_driver_test_la-test_driver.lo CCLD libvirt_driver_test.la CC libvirt_driver_remote_la-remote_driver.lo CC libvirt_driver_remote_la-remote_protocol.lo CC libvirt_driver_remote_la-qemu_protocol.lo CC libvirt_net_rpc_client_la-virnetclientprogram.lo CC libvirt_net_rpc_client_la-virnetclientstream.lo CC libvirt_net_rpc_client_la-virnetclient.lo CCLD libvirt-net-rpc-client.la CC libvirt_net_rpc_server_la-virnetserverprogram.lo CC libvirt_net_rpc_server_la-virnetserverservice.lo CC libvirt_net_rpc_server_la-virnetserverclient.lo CC libvirt_net_rpc_server_la-virnetservermdns.lo CC libvirt_net_rpc_server_la-virnetserver.lo CCLD libvirt-net-rpc-server.la CC libvirt_net_rpc_la-virnetmessage.lo CC libvirt_net_rpc_la-virnetprotocol.lo CC libvirt_net_rpc_la-virnetsocket.lo CC libvirt_net_rpc_la-virnettlscontext.lo CC libvirt_net_rpc_la-virkeepaliveprotocol.lo CC libvirt_net_rpc_la-virkeepalive.lo CC libvirt_net_rpc_la-virnetsaslcontext.lo CCLD libvirt-net-rpc.la CCLD libvirt_driver_remote.la CC libvirt_driver_openvz_la-openvz_conf.lo CC libvirt_driver_openvz_la-openvz_driver.lo CC libvirt_driver_openvz_la-openvz_util.lo CCLD 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multiple definition of `rpl_fwrite' ./.libs/libvirt_util.a(libvirt_util_la-virnetdev.o):<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src/../gnulib/lib/stdio.h>:903: first defined here ./.libs/libvirt_util.a(libvirt_util_la-virnetlink.o): In function `rpl_fwrite': <http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src/../gnulib/lib/stdio.h>:903: multiple definition of `rpl_fwrite' ./.libs/libvirt_util.a(libvirt_util_la-virnetdev.o):<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src/../gnulib/lib/stdio.h>:903: first defined here ../gnulib/lib/.libs/libgnu.a(stdio.o): In function `rpl_fwrite': <http://honk.sigxcpu.org:8001/job/libvirt-build/ws/gnulib/lib/stdio.h>:903: multiple definition of `rpl_fwrite' ./.libs/libvirt_util.a(libvirt_util_la-virnetdev.o):<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src/../gnulib/lib/stdio.h>:903: first defined here collect2: error: ld returned 1 exit status make[3]: *** [libvirt.la] Error 1 make[3]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src'> make[2]: *** [all] Error 2 make[2]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/src'> make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-build/ws/'> make: *** [all] Error 2 Build step 'Execute shell' marked build as failure

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[libvirt] Jenkins build is back to normal : libvirt-syntax-check #437
by Jenkins CI 03 Jan '13

03 Jan '13

See <http://honk.sigxcpu.org:8001/job/libvirt-syntax-check/437/>

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[libvirt] Build failed in Jenkins: libvirt-check #441
by Jenkins CI 03 Jan '13

03 Jan '13

See <http://honk.sigxcpu.org:8001/job/libvirt-check/441/> ------------------------------------------ Started by upstream project "libvirt-build" build number 482 [workspace] $ /bin/sh -xe /tmp/hudson1110434311877203261.sh + make check Making check in gnulib/lib make[1]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/gnulib/lib'> make check-am make[2]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/gnulib/lib'> make[2]: Nothing to be done for `check-am'. make[2]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/gnulib/lib'> make[1]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/gnulib/lib'> Making check in include make[1]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/include'> Making check in libvirt make[2]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/include/libvirt'> make[2]: Nothing to be done for `check'. make[2]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/include/libvirt'> make[2]: Entering directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/include'> make[2]: Nothing to be done for `check-am'. make[2]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/include'> make[1]: Leaving directory `<http://honk.sigxcpu.org:8001/job/libvirt-check/ws/include'> Making check in src /bin/bash: line 9: 28650 Segmentation fault make $local_target make: *** [check-recursive] Error 1 Build step 'Execute shell' marked build as failure

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[libvirt] [PATCH 0/2] Split out parts of qemu_driver.c into separate files
by Peter Krempa 03 Jan '13

03 Jan '13

qemu_driver.c is starting to grow out of proportions. This series creates two(actualy four) files to split out some code from the main file. 1) qemu_util.c - various qemu-related tools and common code (~0.5k lines) 2) qemu_snapshot.c - snapshot related code (~1.7k lines) Apart from reformating function headers, no changes were made to the code. Peter Krempa (2): qemu: Split out various utility functions to qemu_util.c qemu: Split out snapshot related functions to qemu_snapshot.c po/POTFILES.in | 2 + src/Makefile.am | 2 + src/qemu/qemu_driver.c | 2191 +--------------------------------------------- src/qemu/qemu_snapshot.c | 1752 ++++++++++++++++++++++++++++++++++++ src/qemu/qemu_snapshot.h | 38 + src/qemu/qemu_util.c | 486 ++++++++++ src/qemu/qemu_util.h | 111 +++ 7 files changed, 2404 insertions(+), 2178 deletions(-) create mode 100644 src/qemu/qemu_snapshot.c create mode 100644 src/qemu/qemu_snapshot.h create mode 100644 src/qemu/qemu_util.c create mode 100644 src/qemu/qemu_util.h -- 1.8.0.2 e

3 7

[libvirt] libvirtd segfault
by Scott Sullivan 03 Jan '13

03 Jan '13

### Libvirt version: ### libvirt tagged v1.0.0 from git , with f0e72b2f5c675f927d04545dc5095f9e5998f171 applied ### Problem: ### Libvirtd segfaults ### Steps to reproduce: ### This is difficult to reproduce; but appears to happen only when doing 'virsh destroys', and when they are ran in concurrent intervals, over extended periods of time. Here are the steps I have taken to reproduce this problem (debian_6.0_amd64_kvm.img.gz is just a zipped up squeeze stock ISO install): First, copy this script to ease the steps (assumed to be at /root/libvirt_crash.pl later): #!/usr/bin/env perl use strict; use warnings; use Getopt::Long qw(:config no_ignore_case); use String::Random; use UUID::Random; my ($lvms,$sleep,$restarts_per_lvm); GetOptions( 'lvms=i' => \$lvms, 'restarts_per_lvm=i' => \$restarts_per_lvm, 'sleep=i' => \$sleep, ); die "USAGE:\n$0 [--lvms int | --restarts_per_lvm int | --sleep int (optional) ]\n" unless ( $lvms && $restarts_per_lvm ); sub _create_lvm { my $opts = shift; print "\tlvcreate -n $opts->{lvm} -L 5G /dev/LVM\n"; system("lvcreate -n $opts->{lvm} -L 5G /dev/LVM"); } sub _kpartx_lvm { my $opts = shift; die "_kpartx_lvm needs modifier!\n" unless ( $opts->{modifier} ); print "\tkpartx -p p -$opts->{modifier} -v /dev/LVM/$opts->{lvm}\n"; system("kpartx -p p -$opts->{modifier} -v /dev/LVM/$opts->{lvm}"); } sub _remove_lvm { my $opts = shift; print "\tlvremove -f /dev/LVM/$opts->{lvm}\n"; system("lvremove -f /dev/LVM/$opts->{lvm}"); unlink("/xen/configs/$opts->{lvm}.cfg"); } sub _display_lvm { my $opts = shift; print "\tparted -s /dev/LVM/$opts->{lvm} unit gb p\n"; system("parted -s /dev/LVM/$opts->{lvm} unit gb p"); } sub _dd_template { my $opts = shift; print "\tdd if=/root/ssullivan/debian_6.0_amd64_kvm.img.gz bs=1M | gunzip -c | dd of=/dev/LVM/$opts->{lvm} bs=1M\n"; system("dd if=/root/ssullivan/debian_6.0_amd64_kvm.img.gz bs=1M | gunzip -c | dd of=/dev/LVM/$opts->{lvm} bs=1M"); } sub _e2fsck_lvm { my $opts = shift; print "\te2fsck -y -f /dev/mapper/LVM-$opts->{lvm}p1\n"; system("e2fsck -y -f /dev/mapper/LVM-$opts->{lvm}p1"); print "\te2fsck -y -f /dev/mapper/LVM-$opts->{lvm}p3\n"; system("e2fsck -y -f /dev/mapper/LVM-$opts->{lvm}p3") } sub _place_virtconf { my $opts = shift; my $uuid = UUID::Random::generate; my $virt_conf = <<END; <domain type="kvm"> <name>$opts->{lvm}</name> <uuid>$uuid</uuid> <memory>450560</memory> <currentMemory>450560</currentMemory> <vcpu>2</vcpu> <cpu> <topology sockets="2" cores="4" threads="1"/> </cpu> <os> <type arch="x86_64" machine="pc-1.1">hvm</type> <boot dev="hd"/> </os> <features> <acpi/> <apic/> <pae/> </features> <clock offset="localtime"/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/opt/libexec/qemu-kvm-wrapper</emulator> <disk type="block" device="disk"> <driver name="qemu" cache="none"/> <source dev="/dev/LVM/$opts->{lvm}"/> <target dev="vda" bus="virtio"/> </disk> <serial type="pty"> <target port="1"/> </serial> <console type="pty"> <target port="1"/> </console> <input type="tablet" bus="usb"/> <input type="mouse" bus="ps2"/> <graphics type="vnc" port="-1" autoport="yes" keymap="en-us"/> </devices> </domain> END open(my $fh, '>', "/xen/configs/$opts->{lvm}.cfg") || die "Error opening [/xen/configs/$opts->{lvm}.cfg] [$!]"; print $fh "$virt_conf\n"; close($fh) || die "Error closing [/xen/configs/$opts->{lvm}.cfg] [$!]"; } sub _shutdown_lvm { my $opts = shift; print "\tvirsh destroy $opts->{lvm}\n"; system("virsh destroy $opts->{lvm}"); _virsh_list(); } sub _virsh_list { print "\tvirsh list\n"; system('virsh list'); } sub _start_lvm { my $opts = shift; print "\tvirsh create /xen/configs/$opts->{lvm}.cfg\n"; system("virsh create /xen/configs/$opts->{lvm}.cfg"); _virsh_list(); } my $rnd = new String::Random; my $count = 0; while ( $count < $lvms ) { my $id = $rnd->randpattern("cccccccc"); print "####\nLVM PASS: $count\nLVM: $id\n####\n"; print "Creating LVM...\n"; _create_lvm({ lvm => $id }); print "DD'ing template...\n"; _dd_template({ lvm => $id }); print "kpartxA LVM...\n"; _kpartx_lvm({ lvm => $id, modifier => 'a' }); print "e2fsck LVM..\n"; _e2fsck_lvm({ lvm => $id }); print "kpartxD LVM...\n"; _kpartx_lvm({ lvm => $id, modifier => 'd' }); print "Placing libvirt conf...\n"; _place_virtconf({ lvm => $id }); print "Partition setup:\n"; _display_lvm({ lvm => $id }); print "Performing $restarts_per_lvm restarts on $id...\n"; my $restart_cnt = 0; while ( $restart_cnt < $restarts_per_lvm ) { print "####\nRESTART PASS: $restart_cnt\nLVM: $id\n####\n"; print "Shutting down LVM...\n"; _shutdown_lvm({ lvm => $id }); sleep $sleep if ( $sleep ); print "Starting LVM...\n"; _start_lvm({ lvm => $id }); $restart_cnt++; } print "Removing LVM...\n"; _shutdown_lvm({ lvm => $id }); _remove_lvm({ lvm => $id }); $count++; } I then started 21 of these scripts, with the below commands (preferably in a screen to reduce spamming): perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 --sleep 10 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 --sleep 10 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 1000 --restarts_per_lvm 2000 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & perl /root/libvirt_crash.pl --lvms 6000 --restarts_per_lvm 30 & I already had libvirtd started under GDB at this point. I waited about 3-6 hours, and I found this in my GDB session: 2012-12-27 17:23:35.922+0000: 7445: error : qemuMonitorIO:614 : internal error End of file from monitor 2012-12-27 17:23:36.558+0000: 7445: error : qemuMonitorIO:614 : internal error End of file from monitor Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fff8e1fc700 (LWP 31142)] qemuDomainObjBeginJobInternal (driver=0x7fffe401d740, driver_locked=true, obj=0x7fff80001b00, job=QEMU_JOB_DESTROY, asyncJob=QEMU_ASYNC_JOB_NONE) at qemu/qemu_domain.c:768 768 priv->jobs_queued++; Missing separate debuginfos, use: debuginfo-install audit-libs-2.1.3-3.el6.x86_64 augeas-libs-0.9.0-1.el6.x86_64 avahi-libs-0.6.25-11.el6.x86_64 cyrus-sasl-gssapi-2.1.23-13.el6.x86_64 cyrus-sasl-lib-2.1.23-13.el6.x86_64 cyrus-sasl-md5-2.1.23-13.el6.x86_64 cyrus-sasl-plain-2.1.23-13.el6.x86_64 db4-4.7.25-16.el6.x86_64 dbus-libs-1.2.24-5.el6_1.x86_64 device-mapper-libs-1.02.66-6.el6.x86_64 glibc-2.12-1.47.el6.x86_64 gnutls-2.8.5-4.el6.x86_64 keyutils-libs-1.4-3.el6.x86_64 krb5-libs-1.9-22.el6_2.1.x86_64 libblkid-2.17.2-12.4.el6.x86_64 libcap-ng-0.6.4-3.el6_0.1.x86_64 libcom_err-1.41.12-11.el6.x86_64 libcurl-7.19.7-26.el6_1.2.x86_64 libgcrypt-1.4.5-9.el6.x86_64 libgpg-error-1.7-4.el6.x86_64 libidn-1.18-2.el6.x86_64 libnl-1.1-14.el6.x86_64 libpcap-1.0.0-6.20091201git117cb5.el6.x86_64 libpciaccess-0.12.1-1.el6.x86_64 libselinux-2.0.94-5.2.el6.x86_64 libsepol-2.0.41-4.el6.x86_64 libtasn1-2.3-3.el6.x86_64 libudev-147-2.40.el6.x86_64 libuuid-2.17.2-12.4.el6.x86_64 libxml2-2.7.6-4.el6.x86_64 libxslt-1.1.26-2.el6.x86_64 netcf-libs-0.1.9-2.el6.x86_64 nspr-4.8.8-3.el6.x86_64 nss-3.12.10-17.el6_2.x86_64 nss-softokn-freebl-3.12.9-11.el6.x86_64 nss-util-3.12.10-2.el6.x86_64 numactl-2.0.3-9.el6.x86_64 openldap-2.4.23-20.el6.x86_64 openssl-1.0.0-20.el6.x86_64 yajl-1.0.7-3.el6.x86_64 zlib-1.2.3-27.el6.x86_64 (gdb) Here is the output of 'thread apply all bt' from this session: Thread 30 (Thread 0x7fff8e1fc700 (LWP 31142)): #0 qemuDomainObjBeginJobInternal (driver=0x7fffe401d740, driver_locked=true, obj=0x7fff80001b00, job=QEMU_JOB_DESTROY, asyncJob=QEMU_ASYNC_JOB_NONE) at qemu/qemu_domain.c:768 #1 0x00007fffeac2b223 in qemuDomainDestroyFlags (dom=<value optimized out>, flags=<value optimized out>) at qemu/qemu_driver.c:2052 #2 0x00000039f10f97df in virDomainDestroy (domain=0x7fff741b8540) at libvirt.c:2201 #3 0x0000000000428e22 in remoteDispatchDomainDestroy (server=<value optimized out>, client=<value optimized out>, msg=<value optimized out>, rerr=0x7fff8e1fbbe0, args=<value optimized out>, ret=<value optimized out>) at remote_dispatch.h:1277 #4 remoteDispatchDomainDestroyHelper (server=<value optimized out>, client=<value optimized out>, msg=<value optimized out>, rerr=0x7fff8e1fbbe0, args=<value optimized out>, ret=<value optimized out>) at remote_dispatch.h:1255 #5 0x00000039f1146152 in virNetServerProgramDispatchCall (prog=0x6884a0, server=0x67fe60, client=0x68eb50, msg=0x6930b0) at rpc/virnetserverprogram.c:431 #6 virNetServerProgramDispatch (prog=0x6884a0, server=0x67fe60, client=0x68eb50, msg=0x6930b0) at rpc/virnetserverprogram.c:304 #7 0x00000039f1143fee in virNetServerProcessMsg (srv=<value optimized out>, client=0x68eb50, prog=<value optimized out>, msg=0x6930b0) at rpc/virnetserver.c:171 #8 0x00000039f1144a8b in virNetServerHandleJob (jobOpaque=<value optimized out>, opaque=<value optimized out>) at rpc/virnetserver.c:192 #9 0x00000039f10643ec in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:144 #10 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #11 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #12 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 29 (Thread 0x7fff8ebfd700 (LWP 20241)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 28 (Thread 0x7fff8f5fe700 (LWP 20235)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 27 (Thread 0x7fff8ffff700 (LWP 29349)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 26 (Thread 0x7fffb8dfa700 (LWP 29348)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 25 (Thread 0x7fffb97fb700 (LWP 28577)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 24 (Thread 0x7fffba1fc700 (LWP 28576)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 23 (Thread 0x7fffbabfd700 (LWP 28180)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 22 (Thread 0x7fffbb5fe700 (LWP 28178)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 21 (Thread 0x7fffe0dfa700 (LWP 12076)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 20 (Thread 0x7fffe17fb700 (LWP 5934)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 19 (Thread 0x7fffe21fc700 (LWP 5904)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x7fffe2bfd700 (LWP 5860)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 17 (Thread 0x7fffbbfff700 (LWP 855)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x7fffe97c4700 (LWP 835)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x7fffec73f700 (LWP 7457)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x7fffed140700 (LWP 7456)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x7fffedb41700 (LWP 7455)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7fffee542700 (LWP 7454)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7fffeef43700 (LWP 7453)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7fffef944700 (LWP 7452)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7ffff0345700 (LWP 7451)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7ffff0d46700 (LWP 7450)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7ffff1747700 (LWP 7449)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7ffff2148700 (LWP 7448)): #0 0x000000300a20b3dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00000039f1063eb6 in virCondWait (c=<value optimized out>, m=<value optimized out>) at util/threads-pthread.c:117 #2 0x00000039f1064483 in virThreadPoolWorker (opaque=<value optimized out>) at util/threadpool.c:103 #3 0x00000039f1063cd9 in virThreadHelper (data=<value optimized out>) at util/threads-pthread.c:161 #4 0x000000300a2077f1 in start_thread () from /lib64/libpthread.so.0 #5 0x0000003009ae570d in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7ffff7fda800 (LWP 7445)): #0 0x0000003009a46f60 in vfprintf () from /lib64/libc.so.6 #1 0x0000003009afc970 in __vsnprintf_chk () from /lib64/libc.so.6 #2 0x0000003009afc8aa in __snprintf_chk () from /lib64/libc.so.6 #3 0x00000039f108144a in snprintf (when=<value optimized out>, buf=0x7fffffffd470 "2012-12-27 17:23:36.561+0000") at /usr/include/bits/stdio2.h:65 #4 virTimeStringThenRaw (when=<value optimized out>, buf=0x7fffffffd470 "2012-12-27 17:23:36.561+0000") at util/virtime.c:219 #5 0x00000039f108167a in virTimeStringNowRaw (buf=0x7fffffffd470 "2012-12-27 17:23:36.561+0000") at util/virtime.c:195 #6 0x00000039f105834b in virLogVMessage (source=VIR_LOG_FROM_FILE, priority=<value optimized out>, filename=0x39f11ad70b "util/event_poll.c", linenr=378, funcname=0x39f11adcc0 "virEventPollMakePollFDs", fmt=<value optimized out>, vargs=0x7fffffffd4f0) at util/logging.c:822 #7 0x00000039f10586ec in virLogMessage (source=<value optimized out>, priority=<value optimized out>, filename=<value optimized out>, linenr=<value optimized out>, funcname=<value optimized out>, fmt=<value optimized out>) at util/logging.c:753 #8 0x00000039f1052241 in virEventPollMakePollFDs () at util/event_poll.c:374 #9 virEventPollRunOnce () at util/event_poll.c:605 #10 0x00000039f1051666 in virEventRunDefaultImpl () at util/event.c:247 #11 0x00000039f11437dd in virNetServerRun (srv=0x67fe60) at rpc/virnetserver.c:1004 #12 0x000000000040c5a3 in main (argc=<value optimized out>, argv=<value optimized out>) at libvirtd.c:1354 (gdb) Does anyone have any insights as to the cause of this, or any potential solutions? If there's anything I can add that would help let me know.

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