[dtrace-discuss] Capture kernel stack if a function is called from a specific function

[Michael Schuster]

raminski at hotmail.co.uk wrote:
> Hi all,
> 
> I've tried hunting for examples of this to no avail. I've also purchased
> 
the Solaris Performance and Tools book but havn't found what I want there
either :(
> 
> What i'm after is a specific way of obtaining a kernel stack (possible
args, but stack would do fine to start with as I'm sure (hope) I could work
out what args I want to capture if needed), if and only if, it was called
by a certain other function. My kernel module can call other routines, not
necessarily in the same module, it maybe in genunix module.

[..]

try this (or something similar):

fbt::internal_timeout:entry
{
	self->watch = 1;
}
fbt::timeout:entry
/self->watch/
{
	printf...
}
fbt::internal_timeout:return
/self->watch/
{
	self->watch = 0;
}

HTH
-- 
Michael Schuster	Sun Microsystems, Inc.
Recursion, n.: see 'Recursion'