Messages in this thread | | | Subject | Re: old radeon latency problem still unfixed? | From | Lee Revell <> | Date | Sun, 26 Feb 2006 19:32:50 -0500 |
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On Mon, 2006-02-27 at 11:18 +1100, Benjamin Herrenschmidt wrote: > On Sun, 2006-02-26 at 18:02 -0500, Lee Revell wrote: > > On Mon, 2006-02-27 at 09:53 +1100, Benjamin Herrenschmidt wrote: > > > Well... as soon as a 3d window appears, the server starts switching > > > all the time. there might be some spin loop in there remaining... > > > > But if the only lock taken in the radeon driver is the BKL, the > > SCHED_NORMAL X server should not be able to delay a SCHED_FIFO process > > right? > > If you have preempt enabled, I suppose .... can we preempt with the BKL > nowadays ?
Yes.
This seems to have been user error - old kernel and/or broken config. Until I get more feedback from the user, this can probably be disregarded.
Lee
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