[Pkg-libvirt-maintainers] Bug#649435: libvirt-bin: crash at startup

[Guido Günther]

On Sun, Nov 27, 2011 at 11:41:08PM +0100, Achim Schaefer wrote:
> On 11/27/2011 08:06 PM, Guido Günther wrote:
> >So it'd be good to know how args looks like. The code in libudev is:
> >
> >        udev_device_set_syspath(udev_device, path);
> I added a printf here:
> printf("devpath: %s(orig) %s (from dev)\n", path,
> udev_device_get_devpath(udev_device));
> 
> >        info(udev, "device %p has devpath '%s'\n", udev_device, udev_device_get_devpath(udev_device));
> >
> >So either udev_device or udev_device_get_devpath(udev_device) are
> >possibly bogus. Since udev_device comes freshly from udev_device_new
> >that's an unlikely candidate. You can either use gdb or some printf in
> >libudev to track that.
> >
> >That said you could also try to run libvirt under valgrind which might
> >point you to the offending part.
> >
> And using valgrind I now get:
> devpath: /sys/devices/virtual/block/md2(orig)
> /devices/virtual/block/md2 (from dev)
> 2011-11-27 23:34:27.920: 23929: error :
> udev_device_new_from_syspath:719 : device 0x13f9b238 has devpath
> 'pJ�'

This looks like an issue in libudev. I'm cc'ing the udev maintainers,
maybe they have an idea. The backtrace is here:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649435#17

Cheers,
 -- Guido