Re: bug in tty ldisc and friends
From: Ingo Molnar
Date:  Tue Jun 16 2009 - 05:10:00 EST
* Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote:
> > Hm, have you tried the patch i sent to you that extends the 
> > number-lock-locks-tracked limit you have run into? It is 
> > trivial.
> 
> I tried upping the number of locks a while ago - it has no effect, 
> which checking on irc seems to fit the general pattern of the 
> reports against Fedora.
> 
> The good thing is I trigger this at boot time reliably - so if 
> you've got some debug stuff you want to stick in I can do that
Could you please turn on CONFIG_DEBUG_LOCKDEP=y and after the 
overflow has happened, send us (or upload somewhere) the output of 
"cat /proc/lock*" ?
If we run out of chains then the source of the leak should be 
clearly visible in that debug outpt.
Thanks,
	Ingo
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