Comment 21 for bug 564181

(In reply to comment #18)
> (In reply to comment #16)
>
> > Is there any errors in xorg.log or dmesg when the slow down happens?
>
> Nothing in dmesg - I briefly saw a different line scroll off when I quit X but
> my fbcon scroll back seems to be limited to a couple of lines so I can't say
> what it said. Now I've tried the other patch I'll try and recreate it and
> redirect to a file this time.
>

After waiting ages and accumulating 22k reloc errors I decided to retrace my steps and so now I've managed to find a way to trigger this - just use flash - something which doesn't usually happen as I run flashblock. Unblocking a flash totally trashes perf even after seamonkey is closed

The error when perf is trashed is -

space check failed in flush

oprofile (not that I totally trust it) shows most time in -

1116680 80.3342 libpixman-1.so.0.17.3 libpixman-1.so.0.17.3 pixman_blt_mmx

It happens with unpatched head and the first patch.

Running with the second patch alone or + the first patch fixes it.