[Bug 874350] [NEW] Segfault: Failed to get udev device for syspath '/sys/devices/virtual/dmi/id'

[Marcus Bointon]

Public bug reported:

I'm attempting to install kvm-qemu with libvirt on Ubuntu Lucid amd64 on
a quad-core i7. It's a brand-new clean install, fully updated and
rebooted. I've been following the Ubuntu KVM docs (from
https://help.ubuntu.com/community/KVM/Installation), but I'm getting
this segfault logged when starting libvirt-bin:

Oct 14 14:23:20 s3 libvirtd: 14:23:20.935: error : udevSetupSystemDev:1417 : Failed to get udev device for syspath '/sys/devi
ces/virtual/dmi/id'#012
Oct 14 14:23:20 s3 libvirtd: 14:23:20.935: error : udevSetupSystemDev:1421 : Failed to get udev device for syspath '/sys/clas
s/dmi/id'#012
Oct 14 14:23:20 s3 kernel: libvirtd[15743]: segfault at 38 ip 000000000047dcdc sp 00007f5828b51830 error 4 in libvirtd[400000
+a4000]
Oct 14 14:23:20 s3 init: libvirt-bin main process (15742) killed by SEGV signal
Oct 14 14:23:20 s3 init: libvirt-bin main process ended, respawning

I read that an earlier incarnation of this bug was fixed (in 0.7.5-3) by
adding a second location for these devices, and you can see it's looking
there but still failing.

How can I create/get these devices? Why are they not created
automatically? FWIW, kvm-ok returns:

INFO: Your CPU supports KVM extensions
INFO: /dev/kvm exists
KVM acceleration can be used

** Affects: libvirt (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/874350

Title:
  Segfault: Failed to get udev device for syspath
  '/sys/devices/virtual/dmi/id'

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