02-20-2010
Memory related troubles within the pari stack will not cause inexplicable problems outside pari. To cause crashes in unrelated things, either the heap or the stack is getting mangled somewhere by something. Since this is clearly impossible, your program was never crashing and this thread does not exist, and you have no need of a memory debugger to check for problems that never existed.
Less sarcastically, 'garbage on the stack' won't crash stdio or anything else programmed sensibly. Every function call you make leaves garbage on the stack, pari's nothing remarkable in that respect. If you're getting segfaults in senseless places, either your stack's being corrupted, or your heap. (Or you're having hardware problems like memory errors.) A memory debugger -- or really, any debugger at all -- will be more useful than a thousand people staring at the 1% of your code you're willing to present. In the time we've spend arguing about it you could've tried lots of things.
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LEARN ABOUT OPENSOLARIS
thr_stksegment
thr_stksegment(3C) Standard C Library Functions thr_stksegment(3C)
NAME
thr_stksegment - get thread stack address and size
SYNOPSIS
cc -mt [ flag... ] file...[ library... ]
#include <thread.h>
#include <signal.h>
int thr_stksegment(stack_t *ss);
DESCRIPTION
The thr_stksegment() function returns, in its stack_t argument, the address and size of the calling thread's stack.
The stack_t structure includes the following members:
void *ss_sp
size_t ss_size
int ss_flags
On successful return from thr_stksegment(), ss_sp contains the high address of the caller's stack and ss_size contains the size of the
stack in bytes. The ss_flags member is always 0. Note that the meaning of ss_sp is reversed from other uses of stack_t such as sigalt-
stack(2) where ss_sp is the low address.
The stack information provided by thr_stksegment() is typically used by debuggers, garbage collectors, and similar applications. Most
applications should not require such information.
RETURN VALUES
The thr_stksegment() function returns 0 if the thread stack address and size were successfully retrieved. Otherwise, it returns a non-
zero error value.
ERRORS
The thr_stksegment() function will fail if:
EAGAIN The stack information for the thread is not available because the thread's initialization is not yet complete, or the thread is
an internal thread.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
sigaltstack(2), thr_create(3C), attributes(5)
SunOS 5.11 15 Jun 2000 thr_stksegment(3C)