Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-45

[Ingo Molnar <mingo@elte.hu>]

* William Weston <weston@sysex.net> wrote:

> Here's the results of trying out everything from -50-45 through -51-01 on
> the SMT box:

thanks for the extensive testing!

> -51-01 won't boot:
> 
> softirq-timer/1/13[CPU#1]: BUG in ____up_mutex at kernel/rt.c:1302

i have digged out an older HT-box .config of yours and have reproduced 
an assert quite similar to the one above. Found one bug in that area: 
the assert (conditional on RT_DEADLOCK_DETECT) was done a bit too early, 
i have fixed this in my tree and have uploaded -51-02.

> BTW, -50-44 through -50-51 wouldn't compile on the UP Athlon box.  

do the 51-02 (and later) kernels work on the UP Athlon box?

> -50-43 appears to be rock-solid under the UP non-debug config.  After 
> hammering on it all weekend, Maximum wakeup latency was 14us (from 
> running JACK, phasex, burnK7, dd, and switching from X to text console 
> all at once).

great!

	Ingo