having trouble with kdb on smp (kernel 2.5.9)

[Patricia Gaughen]

Hi,

Matt Dobson and myself are trying to use kdb to debug a hang during boot on 
2.5.9 on an 8 proc numaq box.  I saw the recent patch from Ethan Solomita and 
I'll give it a try tonight or tomorrow.  But we've ran into a couple of issues:

	- when the system hangs we enter kdb but using bt, bta and btp do not produce 
stacks for any of the processes.  We're able to get the stacks manually, but 
this is not much fun :-)

	- Also we're not able to switch cpus.

Are these known issues?  Should I expect Ethan's patch to help with this?  and 
finally, where would you suggest I go from here (in terms of getting either of 
the issues above fixed).

Thanks,
Pat


-- 
Patricia Gaughen (gone at us.ibm.com)
IBM Linux Technology Center
http://www.ibm.com/linux/ltc/