Re: SMP Sparc64 : bug in clone?

[Erik de Castro Lopo <erikd@mega-nerd.com>]

On Sat, 23 Mar 2002 13:15:45 +1100
Erik de Castro Lopo <nospam@mega-nerd.com> wrote:

> Hi all,
> 
> The clone system call on Sparc64 Linux seems to be producing drastically 
> different results to those obtain in x86 linux. On Sparc64 it seems as if
> the child process never runs (tried on uni-processor 2.4.18 and SMP
> 2.4.19-pre4 with the same results).

A collegue of mine suggested that it may be failing because the stack was 
not executable. I therefore wrote a new test where memory for the stack
was allocated using an anonymous mmap().

Like the others, this program runs on x86 but does not on Sparc64.

New test program here:

 	https://mega-nerd.net/clone_mmap_test.c

A similar program using fork() works as expected.

Erik
-- 
+-----------------------------------------------------------+
  Erik de Castro Lopo  nospam@mega-nerd.com (Yes it's valid)
+-----------------------------------------------------------+
"The reasonable man adapts himself to the world; the unreasonable one 
persists to adapt the world to himself. Therefore all progress depends
on the unreasonable man." -- George Bernard Shaw (1856-1950)