CPU spinout with samba-3.0.20pre[12]

[Jeremy Allison]

On Fri, Jul 15, 2005 at 07:52:01AM +1200, Jason Haar wrote:
> Hi there
> 
> Under Fedora Core 2, I have had 3.0.20pre1 spin out, with a smbd process 
> taking 80-90% of the system CPU. Restarting smbd clears the problem, but 
> some time in the next 24 hours it's back again.
> 
> I then upgraded to 3.0.20pre2, and now winbindd is the problem - 
> currently it's sitting on 85% CPU.
> 
> If I strace the running process, I see that nothing is happening - i.e. 
> strace attaches, and there's no output.
> 
> I have "log level = 9" set - but don't really know what to look for to 
> see where the problem is.
> 
> Can someone point me at what I need to do to provide some actually 
> useful details to the esteemed Samba programmers? ;-)

Attach to the spinning process with gdb and then
type "bt" to get a stack backtrace. THis should tell
us where we have a loop.

Better if compiled with -g of course.

Jeremy.