[Bug 39612] radeon blocks with new style fencing

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=39612





--- Comment #4 from Linas <linas_fi@ymail.com>  2012-10-21 19:31:38 ---
Created an attachment (id=84201)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=84201)
Xorg log mieq

Testing with 3.6.2, radeon.no_wb=1 is still needed, although it seems a bit
better.
You can get -with a little difficulty- to switch virtual terminals, so it is
possible to SIGINT the xserver. Interestingly, although the first startx leads
to a blank screen, a second startx runs the DE without being apparently
affected. ?!
Booting with radeon.no_wb=1 the DE shows directly the first time, as it should.

In one failed instance, the Xorg log showed errors of «[mi] EQ overflowing.»,
«[mi] EQ overflow continuing.  100 events have been dropped.», «[mi] EQ
overflow continuing.  200 events have been dropped.»... I am attaching this
log.

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