Re: getcontext() -> Bus error?

• Subject: Re: getcontext() -> Bus error?
• From: Edd Dawson <email@hidden>
• Date: Fri, 01 Feb 2008 01:37:42 +0000
• Delivered-to: email@hidden
• Delivered-to: email@hidden
• User-agent: Thunderbird 2.0.0.9 (Windows/20071031)

Hi Jim,

I'm no thread guru, but moving the ctx off the local stack
makes it not crash for me.  Perhaps the stack (which is about
to be freed) isn't the best place to save the thread info.

The code runs fine on my linux machine, FWIW.

Edd

On Jan 31, 2008, at 5:52 PM, Edd Dawson wrote:

Hello,

I sincerely hope this is the correct list for this question.

I'm running leopard 10.5.1 on a MacBook with the standard apple developer tools.

edd:guff developer$ gcc -dumpversion
4.0.1
edd:guff developer$ cat getcontext.c
#include <ucontext.h>

int main(void)
{
ucontext_t ctx;
getcontext(&ctx);
return 0;
}
edd:guff developer$ gcc getcontext.c -o getcontext -W -Wall -ansi -pedantic
edd:guff developer$ ./getcontext
Bus error
edd:guff developer$

Why the bus error? What am I doing wrong?

Kind regards,

Edd

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