Emulator

What's the problem? Describe what went wrong in few words.
Since the merge of videosoftware-xfb, many of my fifo logs won't play back anymore when using the software renderer (even when "Bypass XFB" is checked).

What did you expect to happen instead?
Things to render fine. FifoPlayer is known to fail when XFB emulation is enabled, however the option "Bypass XFB" should be equivalent to "Disable XFB" in the hardware renderers and should make it work.

What steps will reproduce the problem?

1. Download the fifo log attached below
2. Switch to the software renderer
3. Run the fifo log

Dolphin 3.5 and 3.5-367 are old versions of Dolphin that have
known issues and bugs, so don't report issues about them and test the
latest Dolphin version first.
Which versions of Dolphin did you test on?
git bisect returned me a list of possible culprates:
01da9c4b71abac605e9edad7ccac365bade402a5
a94940edd365ac4ec9334c8e696bc5466fe02cb1
2abcc32bbd0ba350ea552925b04b0522d78e56fe
999e085411b7252b5db131cbde2bcecb63e3bc3b
38de5bdd4af037ca53f075dc29b9f31c292bbe66
786e49ed4867ce37c1e0a4eb82079b45c1c6e844
b6eb1af47b257554d44b27ccf1cd85f16ae9c35f
e720ea78372f3eda9baf6c7b3f79a5feed06b92d
71cc490969268aeba10bad0e012007cd6ac27d35
afe47ff8479ceb816e54aab2523cb6cccf046923
43d1678fb2befa4bf72a54e2f86be600ada3018b
d52e241cdf331761aa26d965b223b837a8bd6a8e
8b2c54054414f17fdc4ab0d8fb988f02f189e74e
I skipped many revisions inside the branch because the intermediate commits were unstable and/or didn't even build on Windows.

Does using an older version of Dolphin solve your issue? If yes, which
versions of Dolphin used to work?
Any build before the videosoftware-xfb branch merge is fine.

What are your PC specifications? (including, but not limited to: Operating
System, CPU and GPU)
Windows 7 x64, NVidia GTX 680

Is there any other relevant information? (e.g. logs, screenshots,
configuration files)
There is a sample fifo log at http://www.mediafire.com/download/o1xufwwvbmdn219/NBALive2005.7z. It should render anything, however for me it just blackscreens.

Marking report as critical because dff playback in the software renderer is a really crucial debugging tool.