Since commit 098316211ce65db79d00c5975fa30873426450a6 every time I go to gmail
with chromium 28.0.1500.89, less than 10 seconds after it loads the page, the
bookmarks bar get filled with weird colours, as the portraits of my contacts in
hangouts, then X hangs and the keyboard stops working (even pressing Num Lock
doesn't turn the LED off).
The system can still be shut down cleanly with acpid and the power button.

I have some changed flags in chrome://flags, but with the same flags it always
worked.

HD3850 AGP 512MB (RV670)
kernel 3.9.9
X.Org server 1.12.4
libdrm 2.4.46