Re: [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00

[Peter Zijlstra <a.p.zijlstra@chello.nl>]

On Sat, 2005-06-11 at 20:48 +0200, Ingo Molnar wrote: 
> * Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> 
> > Hi Ingo,
> > 
> > I'm having some difficulty with your latest patches; more specifically
> > linux-2.6.12-rc6-git4-RT-V0.7.48-10 floods me with BUGs like these:
> 
> > I gather these are because of:
> > 
> > drivers/usb/code/hcd.c:rh_report_status
> > 
> > static void rh_report_status (unsigned long ptr)
> 
> does the patch below help?
> 
Yes, it does.

> > On another note; X seems to have trouble getting up. It consumes a 
> > full CPU right after mode switching (afaict) without getting any 
> > progress. I'll try and get a nice trace of X using sysrq-t.
> 
> could this be due to the messages spamming the console?

No, no output at all on my (serial) console. Nor does sysrq work; except
for powerOff which really doesn't help :-|, nor does it work with my
current 'good' kernel 2.6.12-rc5-git4-RT-V0.7.47-12. Also any process
touching the X process hangs along with it. I tried strace, gdb etc..

I'll try some more tomorrow..

Peter Zijlstra