Charles-François Natali <[email protected]> added the comment:

> This is a kernel bug, not a bug in the GNU libc (ask Ulrich if you are not 
> sure ;-)).

Kernels prior to 2.6.23 didn't know about the O_CLOEXEC flag: to catch this 
kind of problem, every syscall would have to check every bit when it's passed a 
combination of flags. This would be clumsy, error-prone and slow.
It's not a libc bug either.
The problem is really a distribution issue: using a libc defining a flag 
unsupported by the kernel is really calling for trouble.

> An host can have multiple kernel versions (and choose at boot time using 
> GRUB/LILO/...)

It's possible, but it's definitely a bad idea, because of such API mismatch. 
For example nothing prevents a syscall from being removed/modified from one 
kernel version to another. If your libc doesn't follow, you're up for trouble.
Try using futexes with a kernel not supporting them :-)

----------

_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue12105>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: 
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

Reply via email to