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Date: Sat, 31 Jan 2004 22:18:26 +0100
From: bert hubert <ahu@ds9a.nl>
To: Matthias Urlichs <smurf@smurf.noris.de>
Cc: linux-kernel@vger.kernel.org, molnar@elte.hu, phil-list@redhat.com
Subject: Re: BUG: NTPL: waitpid() doesn't return?
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On Sat, Jan 31, 2004 at 09:49:14PM +0100, Matthias Urlichs wrote:

> Your test program works... except that it reports, when I strace it,
> 
> [pid 10629] waitpid(10631, Process 10629 suspended
>  <unfinished ...>
> [pid 10628] <... mmap2 resumed> )       = 0x41966000
> [pid 10630] waitpid(10632, Process 10630 suspended
> <unfinished ...>
> 
> Those "Process ### suspended" messages did NOT happen with the Python
> script that exhibits the bug.

This means your situation is different from what you describe. Python may
not in fact be doing 'real' threading on your setup. I suggest you try to
make the smallest possible python program that exhibits the program and send
it to the list.

Can you also run the Python program with LD_ASSUME_KERNEL=2.4 ? And my
program too.

Thanks.


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