a web site that blows away my desktop session

[Robert P. J. Day]

  as a followup to one of my posts from yesterday(?), i've been
cruising the intertoobz, checking for other sites that seem to do bad
things to my f12 beta desktop session.  here's one -- a post from a
canadian political blog:

http://scathinglywrongrightwingnutz.blogspot.com/2009/10/difference-between-propaganda-and-facts.html

i am making no political statement with this, i am simply pointing out
a web page that will (in this case, at least) not take down my entire
system, but will kick me out of my gnome desktop and force me to log
back in again.

  note:  simply loading that page is not sufficient.  what i need to
do is scroll down two screens, then ... BOOM!  my desktop is gone.  i
have done this a few times, and it's entirely reproducible (including
the necessity for scrolling down a bit to cause the crash).  i am
looking at that page right now using firefox from a novell SLE 11
system, and it's fine, no problem, even with scrolling.

  i'd be happy to add some log file info to this, but i'm not sure
where to go looking for that.  can anyone else reproduce this?  i'm
going to guess it's related to the ATI video on this laptop:


01:05.0 VGA compatible controller: ATI Technologies Inc RS690M [Radeon
X1200 Series] (prog-if 00 [VGA controller])
        Subsystem: Gateway 2000 Device 0381
        Flags: bus master, fast devsel, latency 64, IRQ 18
        Memory at f0000000 (64-bit, prefetchable) [size=128M]
        Memory at f8100000 (64-bit, non-prefetchable) [size=64K]
        I/O ports at 9000 [size=256]
        Memory at f8000000 (32-bit, non-prefetchable) [size=1M]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: [50] Power Management version 2
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit+
        Kernel modules: radeon

# lsmod
... video related modules ...
video                  23476  0
output                  3360  1 video
radeon                507616  2
ttm                    41952  1 radeon
drm_kms_helper         25360  1 radeon
drm                   171168  5 radeon,ttm,drm_kms_helper
i2c_algo_bit            6020  1 radeon
i2c_core               28608  5 videodev,i2c_piix4,radeon,drm,i2c_algo_bit
...

  the entire output from lsmod is attached.  and while i'm here:

# cat /proc/cmdline
ro root=/dev/mapper/f11-root nomodeset rhgb quiet \
  SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us

rday
--

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

            Linux Consulting, Training and Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Twitter:                                       http://twitter.com/rpjday
========================================================================
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Module                  Size  Used by
fuse                   62048  2 
sunrpc                191864  1 
ip6t_REJECT             5856  2 
nf_conntrack_ipv6      21880  2 
ip6table_filter         4016  1 
ip6_tables             19664  1 ip6table_filter
ipv6                  298864  34 ip6t_REJECT,nf_conntrack_ipv6
cpufreq_ondemand        7824  1 
powernow_k8            17332  1 
freq_table              4864  2 cpufreq_ondemand,powernow_k8
dm_multipath           17304  0 
uinput                  9248  0 
snd_hda_codec_atihdmi     4192  1 
snd_hda_codec_idt      66800  1 
snd_hda_intel          30344  2 
arc4                    2160  2 
snd_hda_codec          72832  3 snd_hda_codec_atihdmi,snd_hda_codec_idt,snd_hda_intel
ecb                     3264  2 
uvcvideo               58972  0 
snd_hwdep               9224  1 snd_hda_codec
snd_seq                58080  0 
videodev               36160  1 uvcvideo
v4l1_compat            14052  2 uvcvideo,videodev
snd_seq_device          7620  1 snd_seq
snd_pcm                83144  2 snd_hda_intel,snd_hda_codec
rtl8187                35076  0 
mac80211              181512  1 rtl8187
eeprom_93cx6            2368  1 rtl8187
cfg80211               87800  2 rtl8187,mac80211
rfkill                 20488  1 cfg80211
amd64_edac_mod         29632  0 
snd_timer              22608  2 snd_seq,snd_pcm
r8169                  34004  0 
snd                    67592  12 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer
wmi                     7280  0 
mii                     5104  1 r8169
edac_core              43516  1 amd64_edac_mod
shpchp                 34636  0 
v4l2_compat_ioctl32    10736  1 videodev
soundcore               7328  1 snd
i2c_piix4              14304  0 
snd_page_alloc          9568  2 snd_hda_intel,snd_pcm
serio_raw               6644  0 
joydev                 11984  0 
k8temp                  5344  0 
ata_generic             5924  0 
pata_acpi               5152  0 
pata_atiixp             5888  0 
usb_storage            60288  0 
video                  23476  0 
output                  3360  1 video
radeon                507616  2 
ttm                    41952  1 radeon
drm_kms_helper         25360  1 radeon
drm                   171168  5 radeon,ttm,drm_kms_helper
i2c_algo_bit            6020  1 radeon
i2c_core               28608  5 videodev,i2c_piix4,radeon,drm,i2c_algo_bit