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

[Guido Günther]

On Sat, Nov 26, 2011 at 10:17:17PM +0100, Achim Schaefer wrote:
> On 11/26/2011 11:09 AM, Guido Günther wrote:
> >Can you try to produce a backtrace using gdb and the libvirt-dbg
> >package? Cheers, -- Guido
> here you go:

This looks like a problem in libudevs udevGetDMIData. Could you look at
the variable and check if the paramters passed in by libvirt are sane.
Cheers,
 -- Guido

> 
> root at data:/usr/sbin# gdb libvirtd
> GNU gdb (GDB) 7.3-debian
> Copyright (C) 2011 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/sbin/libvirtd...Reading symbols from
> /usr/lib/debug/usr/sbin/libvirtd...done.
> done.
> (gdb) run
> Starting program: /usr/sbin/libvirtd
> [Thread debugging using libthread_db enabled]
> WARNING: gnome-keyring:: no socket to connect to
> [New Thread 0x7ffff3080700 (LWP 6699)]
> [New Thread 0x7ffff287f700 (LWP 6700)]
> [New Thread 0x7ffff207e700 (LWP 6701)]
> [New Thread 0x7ffff187d700 (LWP 6702)]
> [New Thread 0x7ffff107c700 (LWP 6703)]
> [New Thread 0x7ffff087b700 (LWP 6704)]
> [New Thread 0x7ffff007a700 (LWP 6705)]
> [New Thread 0x7fffef879700 (LWP 6706)]
> [New Thread 0x7fffef078700 (LWP 6707)]
> [New Thread 0x7fffee877700 (LWP 6708)]
> [New Thread 0x7fffec299700 (LWP 6709)]
> 2011-11-26 22:16:01.081: 6709: info : libvirt version: 0.9.7
> 2011-11-26 22:16:01.081: 6709: error : udev_set_log_fn:336 : custom
> logging function 0x7fffec298af8 registered
> 
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x7fffec299700 (LWP 6709)]
> 0x00007ffff4842038 in _IO_vfprintf_internal (s=0x7fffec297f30,
> format=0x7ffff736ad38 "device %p has devpath '%s'\n",
> ap=0x7fffec2980e8) at vfprintf.c:1620
> 1620    vfprintf.c: No such file or directory.
>         in vfprintf.c
> (gdb) bt
> #0  0x00007ffff4842038 in _IO_vfprintf_internal (s=0x7fffec297f30,
> format=0x7ffff736ad38 "device %p has devpath '%s'\n",
> ap=0x7fffec2980e8) at vfprintf.c:1620
> #1  0x00007ffff48e74bc in *__GI___vasprintf_chk
> (result_ptr=0x7fffec298110, flags=1, format=0x7ffff736ad38 "device
> %p has devpath '%s'\n", args=0x7fffec2980e8) at vasprintf_chk.c:68
> #2  0x00007ffff77f87f4 in vasprintf (__ap=<optimized out>,
> __fmt=<optimized out>, __ptr=0x7fffec298110) at
> /usr/include/x86_64-linux-gnu/bits/stdio2.h:199
> #3  virVasprintf (strp=0x7fffec298110, fmt=<optimized out>,
> list=<optimized out>) at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/util/util.c:1679
> #4  0x00007ffff77e5638 in virLogMessage (category=0x7ffff736ad0a
> "../libudev/libudev-device.c", priority=4, funcname=0x7ffff736afa0
> "udev_device_new_from_syspath", linenr=718, flags=0, fmt=<optimized
> out>)
>     at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/util/logging.c:738
> #5  0x00007ffff736353f in ?? () from /lib/x86_64-linux-gnu/libudev.so.0
> #6  0x00007ffff7365aaa in udev_device_new_from_syspath () from
> /lib/x86_64-linux-gnu/libudev.so.0
> #7  0x00000000004c91b7 in udevGetDMIData (data=0x7fffe4010fe8) at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/node_device/node_device_udev.c:1497
> #8  udevSetupSystemDev () at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/node_device/node_device_udev.c:1586
> #9  udevDeviceMonitorStartup (privileged=<optimized out>) at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/node_device/node_device_udev.c:1697
> #10 0x00007ffff784fe3e in virStateInitialize (privileged=1) at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/libvirt.c:850
> #11 0x00000000004224d1 in daemonRunStateInit (opaque=0x74dcf0) at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./daemon/libvirtd.c:1144
> #12 0x00007ffff77f5722 in virThreadHelper (data=<optimized out>) at /build/buildd-libvirt_0.9.7-2-amd64-OcBi6O/libvirt-0.9.7/./src/util/threads-pthread.c:157
> #13 0x00007ffff4f8fb40 in start_thread (arg=<optimized out>) at
> pthread_create.c:304
> #14 0x00007ffff48d336d in clone () at
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
> #15 0x0000000000000000 in ?? ()
> (gdb)
>