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DateFri, 8 Jul 2005 07:41:29 +0200
FromIngo Molnar <>
SubjectRe: Real-Time Preemption, -RT-2.6.12-final-V0.7.51-12
* Chuck Harding <charding@llnl.gov> wrote:

> Which still exhibits the lockup of sox. I built a 2.6.12 vanilla kernel
> using the same .config as I used for 51-12 and the failure did not happen.
> just the process of booting up causes later invocations of sox to lockup
> in the D state. If I don't login to X and just run from a VT I can get
> it to lockup by running something like:> $ for ((i=0;i<20;i++))> >do> >echo -ne "\r$i  "> >(play /usr/share/sounds/KDE_Beep_ShortBeep.wav &)
> >done> > after about 14 or so iterations of the loop and thereafter no more 
> sound can be played.

tried it and cannot reproduce it, so i'll need the full backtrace of all 
tasks in your system, whenever sox gets stuck, via:

  echo t > /proc/sysrq-trigger
  dmesg -s 10000000 > toingo.txt
	Ingo
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