June 2009 - Devel - Libvirt List Archives

by Daniel P. Berrange

FYI, I just committed a patch to add the contents of the 'HACKING' file to the website, under the section 'Documentation -> Internals -> Contributor Guidelines No content changes from HACKING, just html-ized existing content. 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 :|

15 years, 9 months

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[libvirt] identi.ca micro-blogging group for libvirt & related apps

by Daniel P. Berrange

Micro-blogging is very popular these days and I know a number of people working on / with libvirt are using twitter/identi.ca So I decided it was worth creating a libvirt group on identi.ca for targetting notices relating to libvirt and any apps built using libvirt. You can find it here http://identi.ca/group/libvirt Any posting you make containing the magic word '!libvirt' will appear in the group page. 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 :|

15 years, 9 months

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[libvirt] [PATCH] Fixing issues in re-detection of transient VMs

by Federico Simoncelli

Re-detection of transient VMs had two issues described in bugs 507304 and 507537: https://bugzilla.redhat.com/show_bug.cgi?id=507304 Summary: After a migration the domain status is saved as "paused" and it is not updated to "running". A following libvirtd restart will detect the vm as "paused" (instead of "running"). https://bugzilla.redhat.com/show_bug.cgi?id=507537 Summary: Destroying a transient re-detected domain leaves the domain defined (instead of completely remove it). Patches in attachment (and available in the bug report). -- Federico Simoncelli.

15 years, 9 months

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[libvirt] [PATCH] don't break on libnuma failures

by Daniel Veillard

Another patch hanging in bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=506590 sometimes libnuma can't handle some topologies, but those failures should not completely break libvirt, patch by Dan Berrange. Look sane to me, fixes the main problem for the reporter, so I applied and commited it, Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

15 years, 9 months

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[libvirt] unchecked malloc+syscall uses

by Jim Meyering

I was looking through recent changes and spotted two potential NULL-dereferences in this change set: http://git.et.redhat.com/?p=libvirt.git;a=commitdiff;h=70c01b4c1adea75e9 In src/opennebula/one_client.c: + one_client.url=(char *)malloc(64); + snprintf(one_client.url, 63, "http://localhost:%d/RPC2", ONED_PORT); +#else + one_client.url=(char *)"http://localhost:2633/RPC2"; +#endif -- + file_text=(char *)malloc(size+1); + bytes_read=read(file, file_text, size); + close(file); + + if(bytes_read==size) { Perhaps of more immediate concern, these syscalls are not checked for failure: + file=open(template_file, O_RDONLY); + size=lseek(file, 0, SEEK_END); + lseek(file, 0, SEEK_SET); and same for the "read" syscall above. Note, this is just the result of a few minutes cursory review.

15 years, 9 months

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[libvirt] More then one pci device possible with libvirt and pci passthrough?

by Mirko Raasch

Hi, i want to use more then one pci card in my debian guest. But when i start the guest, the log says: libvirtd: 15:44:55.459: warning : pciTrySecondaryBusReset:483 : Other devices on bus with 0000:05:01.0, not doing bus reset With "/usr/bin/qemu-system-x86_64 -m 512 -name test -hda /media/vm/test.img -boot c -vnc :2 -k de -pcidevice host=05:01.0 -pcidevice host=05:02.0 -pcidevice host=05:03.0" there seems to be no problems. How can i start my guest with three pci devices passed through and libvirt? My hostdev section in the xml looks like this: <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x05' slot='0x01' function='0x0'/> </source> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x05' slot='0x02' function='0x0'/> </source> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address domain='0x0000' bus='0x05' slot='0x03' function='0x0'/> </source> </hostdev> Greetings Mirko

15 years, 9 months

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[libvirt] Can't scale XP on remote

by sean darcy

Just starting out with an XP guest on Fedora 11 kvm. I'm using virt-manager to connect from a laptop. Server: kernel-2.6.29.4-167.fc11.x86_64 qemu-*-0.10.50-6.kvm86.fc11.x86_64 libvirt-0.6.4-2.fc11.x86_64 On the laptop: virt-manager-0.7.0-5.fc11.i586 libvirt-0.6.2-11.fc11.i586 The console comes, and XP runs fine. But, screen is scaled too large vertically for my laptop screen which is 1280x800. Only with fullscreen can I see the bottom menu bar. I would have assumed I could change the size of the screen (even if not the aspect ratio), but I can't. Am I doing something wrong, or is this just The Way Things Are? sean

15 years, 9 months

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[libvirt] [PATCH] avoid dumpXML segfault with recent Xen (3.4.0)

by Daniel Veillard

This is basically the patch by Sascha at https://bugzilla.redhat.com/show_bug.cgi?id=503254 with a couple of cleanups. I think it's low risk, and avoid a crash so I commited it. Basically ths SXPR syntax changed from (type vnc) to (vnc 1) for VNC vfb devices, and assuming something similar for sdl. The code checks first for type then backoff for vnc/sdl so I think this is backward compatible. Daniel -- Daniel Veillard | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ daniel(a)veillard.com | Rpmfind RPM search engine http://rpmfind.net/ http://veillard.com/ | virtualization library http://libvirt.org/

15 years, 9 months

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[libvirt] [PATCH 3/5] disk geometry

by Henrik Persson

Reads the disk geometry to be able to align disk partitions on cylinder boundries. Msdos partition tables really like this stuff.

15 years, 9 months

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[libvirt] [PATCH 0/5] Create storage volumes with disk backend

by Henrik Persson

Hi, These patches make it possible to create storage volumes when having a disk as backend. As sent in earlier mail, it does not handle LVM and RAID partition currently. /Henrik

15 years, 9 months

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Devel June 2009