[ltt-dev] Problem with tracing network events in 0.128 to 0.132

Pierre-Marc Fournier pierre-marc.fournier at polymtl.ca
Tue Jun 16 12:51:12 EDT 2009

Mathieu Desnoyers wrote:
> * Pierre-Marc Fournier (pierre-marc.fournier at polymtl.ca) wrote:
>> Gregory Haskins wrote:
>>> The RV view.  I noticed that if you get something like irq_entry(x)
>>> irq_entry(y), irq_exit(y), irq_exit(x), its like the last event gets
>>> lost and (I believe) x will stay "lit" forever in the RV window (tho it
>>> could be y, will have to confirm).  Turning on lockdep makes that
>>> nesting impossible and Ive noted that the issue seems to goes away in
>>> this config.  Thus my theory about the nesting.  I can post a screen
>>> shot if it will help.
>> Yes this is a known problem... I will try to get it fixed in the next days.
> Pierre-Marc : any progress on this issue ?

Sorry for the delay. Some fixes were committed to head. It should be
better now.

I think there are still a few cases where the bug occurs. I would be
glad to check it out if someone would send me a problematic trace.



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