December 2013 - Devel - libvirt List Archives

[libvirt] fail to live migration is related to virtio-console
by yue 27 Dec '13

27 Dec '13

hi,all this error occured when live migration windows os, log of that vm is: features 0x1e unsupported allowed features 0x71000002 qemu warning error while loading state for instance 0x0 of device '0000:00:04.4/virtio-console' do you have some idea about that? thanks

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[libvirt] [PATCH] initial version of the bhyve driver
by Roman Bogorodskiy 27 Dec '13

27 Dec '13

Hi, This is an initial version of the bhyve driver. bhyve is a hypervisor for FreeBSD: http://bhyve.org/. I've tried to make this initial version as small as possible but functional, e.g. so it could be tested without lots of manual actions outside of libvirt. Hopefully it's not large enough for review, because I have no idea how to make it smaller yet functional. About the driver itself. It supports the following operations on domains (not counting service ones): * define * start * destroy Domain configuration is limited, user can define RAM, vcpus, can specify only one block device and attach the domain to only one network of 'bridge' type (default network works fine). Having that, you can start a bhyve VM and it will get a network connectivity. Network supported added at the early state, because the only way to get inside VM but network is via stdout/stdin, which is not convenient at all. That was fixed in -CURRENT and one could use tty device, but I haven't upgrade my development box to that version yet. Testing information: I use an domain xml like that: https://gist.github.com/novel/8151244 On both host and guest I use FreeBSD amd64 10-BETA3. Guest image doesn't have much configuration except: ifconfig_vtnet0="DHCP" in /etc/rc.conf And allowing root loging for sshd. Also, if one wants to manually test the image outside of libvirt, this line is needed in /etc/ttys to be able to login from console: ttyu2 "/usr/libexec/getty std.9600" vt100 on secure Roman Bogorodskiy (1): bhyve: add a basic driver configure.ac | 37 ++++ daemon/libvirtd.c | 9 + include/libvirt/virterror.h | 1 + src/Makefile.am | 35 +++ src/bhyve/bhyve_driver.c | 529 ++++++++++++++++++++++++++++++++++++++++++++ src/bhyve/bhyve_driver.h | 28 +++ src/bhyve/bhyve_process.c | 386 ++++++++++++++++++++++++++++++++ src/bhyve/bhyve_process.h | 36 +++ src/bhyve/bhyve_utils.h | 48 ++++ src/conf/domain_conf.c | 3 +- src/conf/domain_conf.h | 1 + src/driver.h | 1 + src/libvirt.c | 3 + src/util/virerror.c | 1 + 14 files changed, 1117 insertions(+), 1 deletion(-) create mode 100644 src/bhyve/bhyve_driver.c create mode 100644 src/bhyve/bhyve_driver.h create mode 100644 src/bhyve/bhyve_process.c create mode 100644 src/bhyve/bhyve_process.h create mode 100644 src/bhyve/bhyve_utils.h -- 1.8.4.3

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[libvirt] fail to live migration
by yue 27 Dec '13

27 Dec '13

hi,all i have no idea why? does this error have anything to do with virtio-channel via which outside process can communicate with guest's process. ------------------my app log-------- File "/usr/lib64/python2.6/site-packages/mcvda/libvirtconnection.py", line 87, in wrapper ret = f(*args, **kwargs) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1178, in migrateToURI2 if ret == -1: raise libvirtError ('virDomainMigrateToURI2() failed', dom=self) libvirtError: Failed to inquire lock: No such process --log libvirtd.log 2013-12-26 09:09:15.514+0000: 18953: error : qemuMonitorIORead:513 : Unable to read from monitor: Connection reset by peer 2013-12-26 09:09:15.514+0000: 18953: debug : qemuMonitorIO:646 : Error on monitor Unable to read from monitor: Connection reset by peer 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940d0530 2013-12-26 09:09:15.514+0000: 18953: debug : qemuMonitorIO:680 : Triggering error callback 2013-12-26 09:09:15.514+0000: 18953: debug : qemuProcessHandleMonitorError:357 : Received error on 0x7fd6940cd410 'QY-n1' 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectRef:168 : OBJECT_REF: obj=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: error : qemuAgentIO:642 : internal error End of file from monitor 2013-12-26 09:09:15.514+0000: 18953: debug : qemuAgentIO:675 : Error on monitor internal error End of file from monitor 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: debug : qemuAgentIO:698 : Triggering EOF callback 2013-12-26 09:09:15.514+0000: 18953: debug : qemuProcessHandleAgentEOF:125 : Received EOF from agent on 0x7fd6940cd410 'QY-n1' 2013-12-26 09:09:15.514+0000: 18953: debug : qemuAgentClose:814 : mon=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: debug : virFileClose:72 : Closed fd 29 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:137 : OBJECT_DISPOSE: obj=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: debug : qemuAgentDispose:169 : mon=0x7fd6940d0640 2013-12-26 09:09:15.514+0000: 18953: debug : qemuProcessHandleAgentDestroy:186 : Received destroy agent=0x7fd6940d0640 vm=0x7fd6940cd410 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940cd410 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectRef:168 : OBJECT_REF: obj=0x7fd6940d0530 2013-12-26 09:09:15.514+0000: 18953: debug : qemuMonitorIO:646 : Error on monitor Unable to read from monitor: Connection reset by peer 2013-12-26 09:09:15.514+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940d0530 2013-12-26 09:09:15.514+0000: 18953: debug : qemuMonitorIO:669 : Triggering EOF callback 2013-12-26 09:09:15.514+0000: 18953: debug : qemuProcessHandleMonitorEOF:298 : Received EOF on 0x7fd6940cd410 'QY-n1' 2013-12-26 09:09:15.514+0000: 18953: debug : qemuProcessHandleMonitorEOF:317 : Monitor connection to 'QY-n1' closed without SHUTDOWN event; assuming the domain crashed 2013-12-26 09:09:15.514+0000: 18953: debug : qemuProcessStop:4192 : Shutting down VM 'QY-n1' pid=20542 flags=0 2013-12-26 09:09:15.515+0000: 18953: debug : virFileClose:72 : Closed fd 28 2013-12-26 09:09:15.515+0000: 18953: debug : qemuMonitorClose:837 : QEMU_MONITOR_CLOSE: mon=0x7fd6940d0530 refs=3 2013-12-26 09:09:15.515+0000: 18953: debug : virFileClose:72 : Closed fd 30 2013-12-26 09:09:15.515+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940d0530 2013-12-26 09:09:15.515+0000: 18953: debug : qemuProcessKill:4090 : vm=QY-n1 pid=20542 flags=5 2013-12-26 09:09:15.515+0000: 18957: debug : qemuMonitorSend:915 : Send command resulted in error Unable to read from monitor: Connection reset by peer 2013-12-26 09:09:15.715+0000: 18953: debug : virObjectRef:168 : OBJECT_REF: obj=0x7fd6940cd410 2013-12-26 09:09:15.715+0000: 18957: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940cd410 2013-12-26 09:09:15.715+0000: 18957: debug : virDomainLockProcessPause:194 : plugin=0x7fd698003020 dom=0x7fd6940cd410 state=0x7fd6940d93d8 2013-12-26 09:09:15.715+0000: 18957: debug : virDomainLockManagerNew:128 : plugin=0x7fd698003020 dom=0x7fd6940cd410 withResources=1 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerPluginGetDriver:283 : plugin=0x7fd698003020 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerNew:307 : driver=0x7fd69d17e900 type=0 nparams=5 params=0x7fd6a2f33720 flags=0 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerLogParams:107 : key=uuid type=uuid value=2619ef7c-d047-4468-b047-3099695f95b7 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerLogParams:100 : key=name type=string value=QY-n1 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerLogParams:88 : key=id type=uint value=4294967295 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerLogParams:88 : key=pid type=uint value=20542 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerLogParams:103 : key=uri type=cstring value=(null) 2013-12-26 09:09:15.715+0000: 18957: debug : virDomainLockManagerNew:140 : Adding leases 2013-12-26 09:09:15.715+0000: 18957: debug : virDomainLockManagerNew:145 : Adding disks 2013-12-26 09:09:15.715+0000: 18957: debug : virDomainLockManagerAddDisk:86 : Add disk /rhev/data-center/e0495ee4-cc01-41ca-9530-a58e184f6e29/c3a83221-1393-4bec-bc3a-214d82e7433c/images/cae86c44-d7fd-45d4-9c2c-ffba89ae31ad/1d04094d-9d76-407e-8924-63d2015f17ed 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerAddResource:336 : lock=0x7fd6880018f0 type=0 name=/rhev/data-center/e0495ee4-cc01-41ca-9530-a58e184f6e29/c3a83221-1393-4bec-bc3a-214d82e7433c/images/cae86c44-d7fd-45d4-9c2c-ffba89ae31ad/1d04094d-9d76-407e-8924-63d2015f17ed nparams=0 params=(nil) flags=0 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerRelease:369 : lock=0x7fd6880018f0 state=0x7fd6940d93d8 flags=0 2013-12-26 09:09:15.715+0000: 18957: error : virLockManagerSanlockRelease:1047 : Failed to inquire lock: No such process 2013-12-26 09:09:15.715+0000: 18957: debug : virLockManagerFree:391 : lock=0x7fd6880018f0 2013-12-26 09:09:15.715+0000: 18957: warning : qemuProcessStartCPUs:2846 : Unable to release lease on QY-n1 2013-12-26 09:09:15.715+0000: 18957: debug : qemuProcessStartCPUs:2847 : Preserving lock state '(null)' 2013-12-26 09:09:15.715+0000: 18957: debug : qemuProcessStop:4192 : Shutting down VM 'QY-n1' pid=20542 flags=1 2013-12-26 09:09:15.715+0000: 18957: debug : qemuProcessStop:4195 : VM 'QY-n1' not active 2013-12-26 09:09:15.715+0000: 18957: debug : qemuDomainObjEndAsyncJob:955 : Stopping async job: migration in 2013-12-26 09:09:15.715+0000: 18957: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940cd410 2013-12-26 09:09:15.715+0000: 18957: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940cd410 2013-12-26 09:09:15.715+0000: 18957: debug : virNetServerProgramSendError:150 : prog=536903814 ver=1 proc=217 type=1 serial=6 msg=0x2263720 rerr=0x7fd6a2f33b80 2013-12-26 09:09:15.715+0000: 18953: debug : virObjectUnref:135 : OBJECT_UNREF: obj=0x7fd6940cd410 2013-12-26 09:09:15.715+0000: 18953: debug : qemuDomainCleanupRun:1995 : driver=0x7fd69801fe50, vm=QY-n1 2013-12-26 09:09:15.715+0000: 18953: debug : qemuProcessAutoDestroyRemove:4670 : vm=QY-n1

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[libvirt] python setMetadata issue
by Umar Draz 25 Dec '13

25 Dec '13

Hi I am trying to set Metada of running virtual machine, but its giving me an error. Here is my code import libvirt conn = libvirt.open('qemu+tcp://10.0.128.12/system') dom = conn.lookupByName('virtspace') type = 'VIR_DOMAIN_METADATA_DESCRIPTION' key = '' uri = '' dom.setMetadata(conn, type, 'myDescription', key, uri) and here is the error. Traceback (most recent call last): File "setMeta.py", line 11, in <module> dom.setMetadata(conn, type, 'meta_test', key, uri) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 1460, in setMetadata ret = libvirtmod.virDomainSetMetadata(self._o, type, metadata, key, uri, flags) AttributeError: virConnect instance has no attribute '__trunc__'

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[libvirt] [PATCH] domain: don't try to interpret <driver> as virtio config for hostdev interfaces
by Laine Stump 24 Dec '13

24 Dec '13

This resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1046337 The <driver> type attribute of an interface is interpreted in two different ways depending on the <interface> type - if the interface is type='hostdev', then the driver name describes which backend to use for the hostdev device assignment (vfio or kvm), but if the interface is any emulated type *and* the model type is "virtio", then the driver name can be "vhost" or "qemu", telling which backend qemu should use to communicate with the emulated device. The problem comes when someone has defined a an interface like this (which is accepted by the parser as long as no <driver name='xxx'/> is specified): <interface type='hostdev'> ... <model type='virtio'/> ... </interface> As libvirt storing this definition in the domain's status, the driver name is automatically filled in with the backend that was automatically decided by libvirt, so it stores this in the status: <interface type='hostdev'> ... <driver name='vfio'/> ... <model type='virtio'/> ... </interface> This isn't noticed until the next time libvirtd is restarted - as it is reading the status of all domains, it encounters the above interface definition, logs an error: internal error: Unknown interface <driver name='vfio'> has been specified and fails to reload the domain status, so the domain is marked as inactive. The solution is to stop the parser from interpreting <driver> attributes as if the device was an emulated virtio device, when it is actually a hostdev. (Although the bug has existed since vfio support was added, it has just recently become more apparent because libvirt previously didn't automatically set the driver name for hostdev interfaces in the domain status to vfio/kvm as it does since commit f094aa, first appearing in v1.1.4.) --- src/conf/domain_conf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 80bc85f..e65f3e3 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -6752,7 +6752,8 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, model = NULL; } - if (def->model && STREQ(def->model, "virtio")) { + if (def->type != VIR_DOMAIN_NET_TYPE_HOSTDEV && + STREQ_NULLABLE(def->model, "virtio")) { if (backend != NULL) { int name; if ((name = virDomainNetBackendTypeFromString(backend)) < 0 || -- 1.8.3.1

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[libvirt] [PATCH v2 0/3] libxl: improve vcpu pinning
by Dario Faggioli 24 Dec '13

24 Dec '13

Hi, Take two, with the comments from Jim on v1 fixed. Basically, that means I've added a few comments and removed some non necessary safety checking. Series available here: git://xenbits.xen.org/people/dariof/libvirt.git libxl/VcpuPinX-v2 Regards, Dario --- Dario Faggioli (3): libxl: implement virDomainGetVcpuPinInfo libxl: implement virDomainPinVcpuFlags libxl: correctly handle affinity reset in virDomainPinVcpu[Flags] src/libxl/libxl_driver.c | 166 ++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 145 insertions(+), 21 deletions(-) -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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[libvirt] [PATCH] virt-login-shell: clean up usage
by Eric Blake 24 Dec '13

24 Dec '13

I noticed a couple odd things in 'virt-login-shell --help' output. * tools/virt-login-shell.c (usage): At most one option accepted, drop trailing colon. Signed-off-by: Eric Blake <eblake(a)redhat.com> --- Pushing under the trivial rule. tools/virt-login-shell.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/virt-login-shell.c b/tools/virt-login-shell.c index 758d1af..8b35e34 100644 --- a/tools/virt-login-shell.c +++ b/tools/virt-login-shell.c @@ -161,10 +161,10 @@ usage(void) fprintf(stdout, _("\n" "Usage:\n" - " %s [options]\n\n" + " %s [option]\n\n" "Options:\n" - " -h | --help Display program help:\n" - " -V | --version Display program version:\n" + " -h | --help Display program help\n" + " -V | --version Display program version\n" "\n" "libvirt login shell\n"), progname); -- 1.8.4.2

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[libvirt] [PATCH 00/14] Fix flaw in virt-login-shell CVE-2013-4400
by Daniel P. Berrange 24 Dec '13

24 Dec '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> The following series of patches have been pushed to master as a fix for CVE-2013-4400. The first four patches are the core fix. The remaining 10 patches are preventative measures to help avoid further problems in the future. I will be pushing at least the first 4 patches to stable branches and any of the further patches if I find they apply without merge problems. Daniel P. Berrange (14): Add helpers for getting env vars in a setuid environment Only allow 'stderr' log output when running setuid (CVE-2013-4400) Close all non-stdio FDs in virt-login-shell (CVE-2013-4400) Don't link virt-login-shell against libvirt.so (CVE-2013-4400) Set a sane $PATH for virt-login-shell Make virCommand env handling robust in setuid env Remove all direct use of getenv Block all use of getenv with syntax-check Only allow the UNIX transport in remote driver when setuid Don't allow remote driver daemon autostart when running setuid Add stub getegid impl for platforms lacking it Remove (nearly) all use of getuid()/getgid() Block all use of libvirt.so in setuid programs Move virt-login-shell into libvirt-login-shell sub-RPM Makefile.am | 1 + bootstrap.conf | 1 + cfg.mk | 8 ++++ config-post.h | 44 ++++++++++++++++++ configure.ac | 1 + daemon/Makefile.am | 1 + daemon/libvirtd.c | 2 +- examples/domain-events/events-c/Makefile.am | 3 +- examples/hellolibvirt/Makefile.am | 2 +- examples/openauth/Makefile.am | 2 +- gnulib/lib/Makefile.am | 2 +- libvirt.spec.in | 28 +++++++---- python/Makefile.am | 1 + src/Makefile.am | 72 +++++++++++++++++++++++++++++ src/driver.c | 3 +- src/libvirt.c | 54 +++++++++++++++------- src/libvirt_private.syms | 6 ++- src/locking/lock_daemon.c | 6 +-- src/locking/lock_driver_lockd.c | 6 +-- src/locking/lock_manager.c | 2 +- src/lxc/lxc_controller.c | 2 +- src/lxc/lxc_driver.c | 4 +- src/lxc/lxc_process.c | 2 +- src/qemu/qemu_command.c | 8 ++-- src/qemu/qemu_driver.c | 6 +-- src/remote/remote_driver.c | 37 +++++++++++---- src/rpc/virnetsocket.c | 16 +++---- src/rpc/virnettlscontext.c | 4 +- src/storage/storage_backend.c | 4 +- src/storage/storage_backend_fs.c | 4 +- src/storage/storage_backend_logical.c | 2 +- src/util/virauth.c | 2 +- src/util/vircommand.c | 50 +++++++++++++++----- src/util/vircommand.h | 8 +++- src/util/virfile.c | 23 +++++---- src/util/viridentity.c | 8 ++-- src/util/virlog.c | 18 ++++++-- src/util/virrandom.c | 2 +- src/util/virstoragefile.c | 2 +- src/util/virutil.c | 47 +++++++++++++++++-- src/util/virutil.h | 8 ++++ src/vbox/vbox_XPCOMCGlue.c | 2 +- src/vbox/vbox_driver.c | 2 +- src/vbox/vbox_tmpl.c | 6 +-- tests/commandtest.c | 8 ++-- tests/qemumonitortestutils.c | 2 +- tests/virnetsockettest.c | 4 +- tools/Makefile.am | 9 +++- tools/virsh.c | 18 ++++---- tools/virt-login-shell.c | 14 ++++++ 50 files changed, 430 insertions(+), 137 deletions(-) create mode 100644 config-post.h -- 1.8.3.1

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[libvirt] [PATCH v2] virnettlscontexttest fails with GNUTLS 3.0.28
by Cédric Bosdonnat 23 Dec '13

23 Dec '13

On openSUSE 12.x with GNUTLS 3.0.28, virnettlscontexttest fails. It has been reported to work from GNUTLS 3.1.11 on Fedora 19. Changed the constraints on gnutls to 3.1+ for unit test cacert4req. --- v2: Changed the condition for 4.0 to work and made commit message more explicit. tests/virnettlscontexttest.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tests/virnettlscontexttest.c b/tests/virnettlscontexttest.c index fc512fc..f3917bf 100644 --- a/tests/virnettlscontexttest.c +++ b/tests/virnettlscontexttest.c @@ -268,7 +268,9 @@ mymain(void) * be rejected. GNUTLS < 3 does not reject it and * we don't anticipate them changing this behaviour */ - DO_CTX_TEST(true, cacert4req.filename, servercert4req.filename, GNUTLS_VERSION_MAJOR >= 3); + DO_CTX_TEST(true, cacert4req.filename, servercert4req.filename, + (GNUTLS_VERSION_MAJOR == 3 && GNUTLS_VERSION_MINOR >= 1) || + GNUTLS_VERSION_MAJOR > 3); DO_CTX_TEST(true, cacert5req.filename, servercert5req.filename, true); DO_CTX_TEST(true, cacert6req.filename, servercert6req.filename, true); -- 1.8.4.4

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[libvirt] python api list
by Umar Draz 23 Dec '13

23 Dec '13

Hi All, http://libvirt.org/php/api-reference.html The above link has a complete list of the functions regarding php api for libvrt. Where I can find the same kind of page for python? Br. Umar

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