September 2009 - Devel - libvirt List Archives

[libvirt] qemu_driver migrateuri handling broken?
by Gregor Schaffrath 24 Sep '09

24 Sep '09

Hi all. Short summary on DV's request ;) I ran into a problem migrating kvm machines with libvirt-0.6.5: 1) At first, using the same syntax for the migrateuri as with xen (just the IP) did not work... looking into the source code (! ;) ), I found a different syntax for qemu. 2) using tcp://<ip>:<port> just produced an 'unknown failure' on the receiving side: root@loadgen137:~> virsh -c qemu:///system migrate --live kvm-testnode-vnode3 qemu+tcp://10.192.11.136/system?no_verify=1 tcp://10.192.11.136:12345 error: Unknown failure (Note: it was working like a charm when I eliminated the migrateuri altogether, but this was not an option in all my work environments, since one of them doesn't feature DNS, breaking migration on the hostname alone (and keeping /etc/hosts in sync on n machines is something I'd like to avoid, if possible ;) )) 3) removing the case distinction and the handling of the migrateuri in the qemudDomainMigratePrepare2 function in qemu_driver.c entirely (if-statement, and full else-part) solved both my issues. --- The issue seems to be current with 0.7.1 as well (at least I did receive the same error message - I did not investigate further) --- My 2ct: ;) I think that a wrapper like libvirt should consequently abstract lower level details (such as 'qemu', or 'xen') as much as possible (that's what libvirt is for, I guess :) ). Since the removal of the URI handling solves both the issue _and_ eliminates a case distinction between xen and qemu (painlessly, as far as I can see), I'd suggest perhaps considering the removal. :) As to the sending side specification of transfer ports: I think there should always be a possiblity to leave port selection up to libvirt, as the sending side does not necessarily an oversight over the free ports on the receiving side. (I feel that the reason for the different syntax including mandatory :port part was motivated by the wish to allow users to specify ports on the sending side) Cheers, Gregor Schaffrath.

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[libvirt] [PATCH] Fix a typo in virDiskHasValidPciAddr()
by Jiri Denemark 24 Sep '09

24 Sep '09

Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/conf/domain_conf.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 09368d9..d494e54 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -125,7 +125,7 @@ struct _virDomainDiskDef { static inline int virDiskHasValidPciAddr(virDomainDiskDefPtr def) { - return def->pci_addr.domain || def->pci_addr.domain || def->pci_addr.slot; + return def->pci_addr.domain || def->pci_addr.bus || def->pci_addr.slot; } -- 1.6.5.rc1

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[libvirt] "Unable to read QEMU help output: Interrupted system call" doing virDomainRestore() on current master
by Charles Duffy 23 Sep '09

23 Sep '09

Howdy. I've had this issue since yesterday, but avoided reporting it until determining today that it occurs on an unmodified upstream tree as well as my own local branch: $ virsh restore ramsave error: Failed to restore domain from ramsave error: Unable to read QEMU help output: Interrupted system call This happens immediately (no delay) and only on restore; "virsh start" behaves as usual. When running libvirtd under gdb, the failure mode is different: $ virsh restore ramsave error: Failed to restore domain from ramsave error: internal error Timed out while reading monitor startup output When running libvirtd under strace, this shows the binary being run (["/usr/bin/qemu-kvm", "-help"]) failing with a SIGPIPE while attempting to write to stdout. strace also shows a SIGSEGV being delivered to a libvirtd thread (a few clone()s removed from the parent) after that thread attempts to close all its open file descriptors above 0-2, but without being able to run gdb I'm at a bit of a loss as to what that thread is doing. Any suggestions?

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[libvirt] [PATCH 0/5] Python fixes
by Cole Robinson 23 Sep '09

23 Sep '09

The following series fixes some functional (and cosmetic) issues with the python bindings. Thanks, Cole Cole Robinson (5): python: Don't generate conflicting conn.createXML functions. python: Add a newline between virConnect and virNode for readability. python: Don't generate bindings for vir*Ref python: Use a pure python implementation of 'vir*GetConnect' python: Fix generated virInterface method names python/generator.py | 40 +++++++++++++++++++++++++++++++++++++--- python/virConnect.py | 1 + 2 files changed, 38 insertions(+), 3 deletions(-)

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[libvirt] building libvirtd fails on libxml-2
by Dan Bar Dov 23 Sep '09

23 Sep '09

I'm running on Centos5.3 Building using: ./autogen.sh --prefix=/usr configure fails with checking libxml2 xml2-config >= 2.6.0 ... configure: error: Could not find libxml2 anywhere (see config.log for details). but rpm -qa | grep libxml2 libxml2-python-2.6.26-2.1.2.7 libxml2-2.6.26-2.1.2.7 libxml2-2.6.26-2.1.2.7 So what's the problem, or better yet, how to fix it? Thanks, Dan

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[libvirt] RFC: Rename / move / delete files in GIT
by Daniel P. Berrange 23 Sep '09

23 Sep '09

With the 0.7.1 relesae out of the way I'd like to suggest that we take this time to move around some files in GIT to correct some long standing wierd/bad naming decisions :-) The qemud/ directory is better named 'daemon', and some of the things in there should really have been in the src/ directory. So... * qemud/ -> daemon/ * qemud/qemud.{h,c} daemon/main.{h,c} * qemud/default-network.xml -> src/network/default.xml * qemud/libvirtd_qemu.aug src/qemu/qemu.aug * qemud/test_libvirtd_qemu.aug src/qemu/test_qemu.aug * qemud/remote_protocol.x -> src/remote/remote_protocol.x In the src/ directory we should move the rest of the drivers into their own sub-directories. Basically want one sub directory for each of the 'mod_LTLIBRARIES' declared in the src/Makefile.am. This will ensure we keep separate build dependancies, not accidentally including files that we shouldn't. * src/qemu_*.{c,h} -> src/qemu/ * src/xen_unified.{c,h} -> src/xen/xen_driver.{c,h} * src/xend_*, src/xm_* src/xen_* -> src/xen/ * src/test.{c,h} -> src/test/test_driver.{c,h} * src/storage*.{c,h} -> src/storage/ * src/security*.{c,h} -> src/security/ * src/remote_internal.{c,h} -> src/remote/remote_driver.{c,h} * src/interface_driver.c -> src/interface/netcf_driver.c * src/network_driver.c -> src/network/network_driver.c * src/lxc_* -> src/lxc/ * src/openvz_* -> src/openvz/ * src/node_device* -> src/nodedev/ That would just leave all the shared source files in src/. We could leave them there, or create a src/util/ directory for that stuff. Move virsh into the tools directory * src/virsh.c -> tools/virsh.c * docs/virsh.pod -> tools/virsh.pod * virsh.1: delete from GIT Sanitise naming in python/ directory, to make it clear which are the manually overriden methods. * python/libvir.c -> python/override-api.c * python/libvir.py -> python/override-api.py * python/libvirt-python-api.xml python/override-api.xml * python/libvirt_wrap.h -> python/types.h * python/virConnect.py -> python/override-virConnect.py Cleanup the docs/ directory * docs/*.html.in -> docs/website/ * docs/*.html: delete from GIT * docs/devhelp: delete from GIT * docs/html: delete from GIT * docs/libvirt-{api,refs}.xml: delete from GIT * docs/examples/ -> examples/ * docs/test*xml -> examples/xml/test/ * docs/storage -> examples/xml/storage/ Remove include/libvirt/libvirt.h from GIT For there places where I list 'delete from GIT', we would ensure that when you run 'make dist' the files are still included in the tar.gz NB, we would also update the cron job that deploys the website on libvirt.org soo that it runs 'make' in the docs/website directory to generate the .html files. Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] [PATCH] Allow control over QEMU audio backend
by Daniel P. Berrange 23 Sep '09

23 Sep '09

When using VNC for graphics + keyboard + mouse, we shouldn't then use the host OS for audio. Audio should go back over VNC. When using SDL for graphics, we should use the host OS for audio since that's where the display is. We need to allow certain QEMU env variables to be passed through to guest too to allow choice of QEMU audio backend. * qemud/libvirtd.sysconf: Mention QEMU/SDL audio env vars * src/qemu_conf.c: Passthrough QEMU/SDL audio env for SDL display, disable host audio for VNC display --- daemon/libvirtd.sysconf | 8 ++++++++ src/qemu/qemu_conf.c | 14 ++++++++++++++ 2 files changed, 22 insertions(+), 0 deletions(-) diff --git a/daemon/libvirtd.sysconf b/daemon/libvirtd.sysconf index fe4596a..28080a0 100644 --- a/daemon/libvirtd.sysconf +++ b/daemon/libvirtd.sysconf @@ -7,3 +7,11 @@ # Override Kerberos service keytab for SASL/GSSAPI #KRB5_KTNAME=/etc/libvirt/krb5.tab + +# Override the QEMU/SDL default audio driver probing when +# starting virtual machines using SDL graphics +# +# NB these have no effect for VMs using VNC +#QEMU_AUDIO_DRV=sdl +# +#SDL_AUDIODRIVER=pulse diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 273aeca..74ca52b 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -2109,6 +2109,13 @@ int qemudBuildCommandLine(virConnectPtr conn, ADD_ARG_LIT("-k"); ADD_ARG_LIT(def->graphics[0]->data.vnc.keymap); } + + /* QEMU implements a VNC extension for providing audio, so we + * set the audio backend to none, to prevent it opening the + * host OS audio devices since that causes security issues + * and is non-sensical when using VNC. + */ + ADD_ENV_LIT("QEMU_AUDIO_DRV=none"); } else if ((def->ngraphics == 1) && def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL) { char *xauth = NULL; @@ -2131,6 +2138,13 @@ int qemudBuildCommandLine(virConnectPtr conn, ADD_ENV(display); if (def->graphics[0]->data.sdl.fullscreen) ADD_ARG_LIT("-full-screen"); + + /* If using SDL for video, then we should just let it + * use QEMU's host audio drivers, possibly SDL too + * User can set these two before starting libvirtd + */ + ADD_ENV_COPY("QEMU_AUDIO_DRV"); + ADD_ENV_COPY("SDL_AUDIODRIVER"); } if (def->nvideos) { -- 1.6.2.5

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[libvirt] ESX: Check if a datastore is accessible before accessing its URL property
by Matthias Bolte 23 Sep '09

23 Sep '09

An inaccessible datastore has no valid URL property. * src/esx/esx_vi.c: esxVI_LookupDatastoreByName(): check if datastore is accessible before accessing its URL property * src/esx/esx_vmx.c: update to changed datastore properties PS: This patch has to be applied after the 12er patch series. Matthias

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[libvirt] ESX [01/12]: Add esxNodeGetFreeMemory()
by Matthias Bolte 23 Sep '09

23 Sep '09

* src/esx/esx_driver.c: add esxNodeGetFreeMemory(), cache IP address * src/esx/esx_vi.[ch]: refactor resource pool query into esxVI_GetResourcePool() * src/esx/esx_vi_types.[ch]: bind VI type ResourcePoolResourceUsage

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[libvirt] [PATCH] Fix up "make check"
by Chris Lalancette 23 Sep '09

23 Sep '09

While running make check, I noticed that it was actually using the virsh binary from my system, in /usr/bin/virsh, and not the one that was just compiled. This doesn't seem to be the intent, so I changed all of the test scripts to point to the one built in-tree, not the system one. Signed-off-by: Chris Lalancette <clalance(a)redhat.com> --- tests/cpuset | 6 +++--- tests/define-dev-segfault | 4 ++-- tests/libvirtd-pool | 4 ++-- tests/read-bufsiz | 6 +++--- tests/read-non-seekable | 6 +++--- tests/start | 4 ++-- tests/test_conf.sh | 2 +- tests/undefine | 8 ++++---- tests/vcpupin | 6 +++--- tests/virsh-all | 6 +++--- tests/virsh-synopsis | 6 +++--- 11 files changed, 29 insertions(+), 29 deletions(-) diff --git a/tests/cpuset b/tests/cpuset index eeb0ee2..a3abe14 100755 --- a/tests/cpuset +++ b/tests/cpuset @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi . $srcdir/test-lib.sh @@ -26,7 +26,7 @@ fi fail=0 # generate input -virsh --connect test:///default dumpxml 1 > xml || fail=1 +$abs_top_builddir/tools/virsh --connect test:///default dumpxml 1 > xml || fail=1 # require the presence of the string we'll transform grep '<vcpu>' xml > /dev/null || fail=1 @@ -34,7 +34,7 @@ grep '<vcpu>' xml > /dev/null || fail=1 sed "s/vcpu>/vcpu cpuset='aaa'>/" xml > xml-invalid || fail=1 # Require failure and a diagnostic. -virsh --connect test:///default define xml-invalid > out 2>&1 && fail=1 +$abs_top_builddir/tools/virsh --connect test:///default define xml-invalid > out 2>&1 && fail=1 cat <<\EOF > exp || fail=1 error: Failed to define domain from xml-invalid error: failed Xen syscall topology cpuset syntax error diff --git a/tests/define-dev-segfault b/tests/define-dev-segfault index 4ae286f..cce1c07 100755 --- a/tests/define-dev-segfault +++ b/tests/define-dev-segfault @@ -4,7 +4,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi test -z "$srcdir" && srcdir=$(pwd) @@ -62,7 +62,7 @@ cat <<\EOF > D.xml || fail=1 EOF url=test:///default -virsh --connect "$url" 'define D.xml; dumpxml D' > out 2>&1 || fail=1 +$abs_top_builddir/tools/virsh --connect "$url" 'define D.xml; dumpxml D' > out 2>&1 || fail=1 cat > exp <<EOF || fail=1 Domain D defined from D.xml diff --git a/tests/libvirtd-pool b/tests/libvirtd-pool index 59da5a6..96da111 100755 --- a/tests/libvirtd-pool +++ b/tests/libvirtd-pool @@ -3,7 +3,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi test -z "$srcdir" && srcdir=$(pwd) @@ -14,7 +14,7 @@ fail=0 pwd=$(pwd) || fail=1 -virsh --connect test:///default \ +$abs_top_builddir/tools/virsh --connect test:///default \ pool-define-as --print-xml \ P dir src-host /src/path /src/dev S /target-path \ 1>out 2>&1 diff --git a/tests/read-bufsiz b/tests/read-bufsiz index 7d53735..9652817 100755 --- a/tests/read-bufsiz +++ b/tests/read-bufsiz @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi test -z "$srcdir" && srcdir=`pwd` @@ -29,7 +29,7 @@ test -z "$abs_top_srcdir" && abs_top_srcdir=`pwd`/.. fail=0 # Output a valid definition, to be used as input. -virsh -c test:///default dumpxml 1 > xml || fail=1 +$abs_top_builddir/tools/virsh -c test:///default dumpxml 1 > xml || fail=1 for i in before after; do # The largest BUFSIZ I've seen is 128K. This is slightly larger. @@ -38,7 +38,7 @@ for i in before after; do # Append or prepend enough spaces to push the size over the limit: ( test $i = before && cat sp xml || cat xml sp ) > $in || fail=1 - virsh --connect test:///default define $in > out || fail=1 + $abs_top_builddir/tools/virsh --connect test:///default define $in > out || fail=1 printf "Domain test defined from $in\n\n" > exp || fail=1 compare exp out || fail=1 done diff --git a/tests/read-non-seekable b/tests/read-non-seekable index 8a7bdcd..648def6 100755 --- a/tests/read-non-seekable +++ b/tests/read-non-seekable @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi . $srcdir/test-lib.sh @@ -40,11 +40,11 @@ cat <<\EOF > dom </domain> EOF -virsh -c test:///default define dom > /dev/null || fail=1 +$abs_top_builddir/tools/virsh -c test:///default define dom > /dev/null || fail=1 mkfifo_or_skip_ fifo cat dom > fifo & -virsh -c test:///default define fifo > /dev/null || fail=1 +$abs_top_builddir/tools/virsh -c test:///default define fifo > /dev/null || fail=1 (exit $fail); exit $fail diff --git a/tests/start b/tests/start index f457d59..6f7815a 100755 --- a/tests/start +++ b/tests/start @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi test -z "$srcdir" && srcdir=$(pwd) @@ -30,7 +30,7 @@ fail=0 test_url=test:///default # expect this to fail -virsh -c $test_url start test > out 2> err && fail=1 +$abs_top_builddir/tools/virsh -c $test_url start test > out 2> err && fail=1 # stdout gets a newline echo > exp || fail=1 diff --git a/tests/test_conf.sh b/tests/test_conf.sh index 62c2324..2754765 100755 --- a/tests/test_conf.sh +++ b/tests/test_conf.sh @@ -2,7 +2,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi . $srcdir/test-lib.sh diff --git a/tests/undefine b/tests/undefine index fafdae7..048a98b 100755 --- a/tests/undefine +++ b/tests/undefine @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi . $srcdir/test-lib.sh @@ -26,7 +26,7 @@ fi fail=0 # Attempt to undefine a running domain, by domain name. -virsh -q -c test:///default undefine test > out 2>&1 +$abs_top_builddir/tools/virsh -q -c test:///default undefine test > out 2>&1 test $? = 1 || fail=1 cat <<\EOF > exp || fail=1 error: Failed to undefine domain test @@ -35,7 +35,7 @@ EOF compare exp out || fail=1 # A different diagnostic when specifying a domain ID -virsh -q -c test:///default undefine 1 > out 2>&1 +$abs_top_builddir/tools/virsh -q -c test:///default undefine 1 > out 2>&1 test $? = 1 || fail=1 cat <<\EOF > exp || fail=1 error: a running domain like 1 cannot be undefined; @@ -44,7 +44,7 @@ EOF compare exp out || fail=1 # Succeed, now: first shut down, then undefine, both via name. -virsh -q -c test:///default 'shutdown test; undefine test' > out 2>&1 +$abs_top_builddir/tools/virsh -q -c test:///default 'shutdown test; undefine test' > out 2>&1 test $? = 0 || fail=1 cat <<\EOF > exp || fail=1 Domain test is being shutdown diff --git a/tests/vcpupin b/tests/vcpupin index 79b02dc..c243d80 100755 --- a/tests/vcpupin +++ b/tests/vcpupin @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi . $srcdir/test-lib.sh @@ -26,7 +26,7 @@ fi fail=0 # Invalid syntax. -virsh --connect test:///default vcpupin test a 0,1 > out 2>&1 +$abs_top_builddir/tools/virsh --connect test:///default vcpupin test a 0,1 > out 2>&1 test $? = 1 || fail=1 cat <<\EOF > exp || fail=1 error: vcpupin: Invalid or missing vCPU number. @@ -35,7 +35,7 @@ EOF compare exp out || fail=1 # An out-of-range vCPU number deserves a diagnostic, too. -virsh --connect test:///default vcpupin test 100 0,1 > out 2>&1 +$abs_top_builddir/tools/virsh --connect test:///default vcpupin test 100 0,1 > out 2>&1 test $? = 1 || fail=1 cat <<\EOF > exp || fail=1 error: vcpupin: Invalid vCPU number. diff --git a/tests/virsh-all b/tests/virsh-all index 03ea466..6accf44 100755 --- a/tests/virsh-all +++ b/tests/virsh-all @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi test -z "$srcdir" && srcdir=$(pwd) @@ -29,14 +29,14 @@ fail=0 test_url=test:///default -virsh -c $test_url help > cmds || framework_failure +$abs_top_builddir/tools/virsh -c $test_url help > cmds || framework_failure cmds=$(sed -n 's/^ $[^ ][^ ]*$ .*/\1/p' cmds) || framework_failure test -n "$cmds" || framework_failure for i in $cmds; do echo testing $i... 1>&2 # For now, just run the command and ignore output and exit status. - virsh -c $test_url $i < /dev/null > /dev/null 2>&1 + $abs_top_builddir/tools/virsh -c $test_url $i < /dev/null > /dev/null 2>&1 done (exit $fail); exit $fail diff --git a/tests/virsh-synopsis b/tests/virsh-synopsis index 24038dd..e700993 100755 --- a/tests/virsh-synopsis +++ b/tests/virsh-synopsis @@ -18,7 +18,7 @@ if test "$VERBOSE" = yes; then set -x - virsh --version + $abs_top_builddir/tools/virsh --version fi test -z "$srcdir" && srcdir=$(pwd) @@ -28,12 +28,12 @@ fail=0 test_url=test:///default -virsh -c $test_url help > cmds || framework_failure +$abs_top_builddir/tools/virsh -c $test_url help > cmds || framework_failure cmds=$(sed -n 's/^ $[^ ][^ ]*$ .*/\1/p' cmds) || framework_failure test -n "$cmds" || framework_failure for i in $cmds; do - virsh -c $test_url help $i > help || fail=1 + $abs_top_builddir/tools/virsh -c $test_url help $i > help || fail=1 grep -A1 '^ SYNOPSIS$' help > synopsis \ || { echo 1>&2 missing or invalid help SYNOPSIS for $i; fail=1; } sed -n 2p synopsis > s2 || framework_failure -- 1.6.0.6

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