Re: determining which process triggered an automount

[Chris Walker <cwalker@pixar.com>]

This is *exactly* what I wanted. I tried it out and it works great.
Thanks.

From fleite:
> On Thu, Apr 12, 2007 at 07:13:07AM -0700, Peter C. Norton wrote:
> > 
> > I think a system tap module could get you this, but it will take some
> > time investment for you to find out how to use it.
> > 
> > http://sourceware.org/systemtap/
> 
> And it also takes a bit of time to find probe points that have not
> been optimized away, auto-inlined, etc. In any case, here's a working
> (in FC5) probe that will tell you who requested a directory. It could
> be improved to provide a full path, but I'm satisfied by it as is.
> 
> probe module("autofs4").function("autofs4_find_wait") {
> 	printf("%s(%d) requested %s\n", execname(), pid(),
> 		kernel_string($name))
> }
> 
> The output is:
> 
> $ sudo stap autofs4_notify_daemon.stap
> bash(5913) requested foobar
> bash(5913) requested foobar
> bash(5913) requested foobar
> ...
> 
> Maybe autofs4_find_wait is not the best place, but it works, and I
> found the more obvious autofs4_notify_daemon to be auto-inlined.
> 
> Hope this helps!
> Fábio
> -- 
> ex sed lex awk yacc, e pluribus unix, amem
> 
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-- 
Chris Walker
Render Pipeline Group
Pixar Animation Studios
510/922.3736
cwalker@pixar.com