Comment # 2 on bug 1182775 from Fabian Vogt

(In reply to Callum Farmer from comment #1)
> Dup
> 
> *** This bug has been marked as a duplicate of bug 1179395 ***

That looks very unrelated - there's no rendering error here, the page never
loads. For some reason only the first tab seems to be affected.

It seems like swiftshader is broken:

[6614:6614:0301/060825.571698:ERROR:viz_main_impl.cc(150)] Exiting GPU process
due to errors during initialization
[6703:6703:0301/060825.582497:ERROR:gl_initializer_linux_x11.cc(121)]
eglGetProcAddress not found.
[6703:6703:0301/060825.611236:ERROR:viz_main_impl.cc(150)] Exiting GPU process
due to errors during initialization

/usr/lib64/chromium/swiftshader/libEGL.so has none of the required egl symbols
defined. Force-disabling swiftshader by enabling the "#ignore-gpu-blocklist"
flag helps.