Re: futexes: Still infinite loop in get_futex_key() in 2.6.31-rc4

[Jens Rosenboom]

On Mon, 2009-07-27 at 15:36 +0200, Peter Zijlstra wrote:
[...]
> Bugger.. how easy it is to reproduce?

Okay, my colleague found the right combination of scripts, take the two
attached, run them both a couple of times in parallel for some hours,
and get a stuck ps. This happens both on an old 2.6.29.1 I happened to
still have on one machine as with 2.6.31-rc4. Both of them dual-core
Opterons as the original one. If you want further tracebacks or other
information, let me know.

Attachment: null.pl
Description: Perl program

Attachment: pees.pl
Description: Perl program