Re: 2.6.21-rt2..8 troubles

["Luis Claudio R. Goncalves" <lclaudio@uudg.org>]

On Thu, May 31, 2007 at 11:56:11AM -0400, Steven Rostedt wrote:
| 
| On Fri, May 25, 2007 at 09:58:12PM +0100, Rui Nuno Capela wrote:
| >
| > I wish I could give you more details, but the fact is I don't know
| > where
| > to look. The machine just freezes silently, again and again, with all
| > kernels from -rt2 to -rt8 inclusive, with no traceable evidence, at
| > least to my knowledge. The only symptom that I can come about is that,
| > from some moment on and ever since, the system cannot start any new
| > process anymore, or otherwise takes forever to realize and launch any
| > new started process thread.

I have also experienced some of these freezes and system hangs, some of them
reproducible, as when I start java+azureus or when xscreensaver pops in. But 
after I unset CONFIG_DEBUG_RT_MUTEXES they are all gone. Not the
DEBUG_RT_MUTEXES has the culpright but judging by the amount of stack
traces it spits every few seconds, this workload may potentialize some
inner problem in the system.

I am currently running rt8 in a FC6 box. I plan to run some further
investigation on this matter.

Luis
 
| I have a box that looks like it's doing the same thing. Unfortunately
| for now it's being used to test other things.
| 
| But I did do a show-task and see a bunch of D processes. I'll post that
| output when I get that box free again.
| 
| -- Steve
| 
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-- 
[ Luis Claudio R. Goncalves                   lclaudio at uudg dot org ]
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