Re: Bug in exit()?

[Wolfram Gloger]

Hello,

> In the supplied program, the vfork()ed child runs in its parent's address 
> space (test on SuSE 6.4, Kernel 2.2.14, glibc 2.2.3), and so its call to 
> exit should close the parent's stdout buffer, and cause the printf() in 
> the parent to fail.  Instead the printf() succeeds.  Uncommenting the 
> fclose() in the child achieves the effect that should be achieved just by 
> the child calling exit().

Please take a look at

http://www.UNIX-systems.org/onlinepubs/007908799/xsh/vfork.html

I conclude from it that calling exit() in the child is not allowed,
only _exit() is.

Also:

>      default:   /* Parent is blocked until child exits */

How do you get that idea?  I'm pretty sure parent and child can
execute concurrently.

Regards,
Wolfram.