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Re: busyloop in sigchld_handler


From: Kim F. Storm
Subject: Re: busyloop in sigchld_handler
Date: Wed, 28 Mar 2007 22:18:21 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.96 (gnu/linux)

Andreas Schwab <address@hidden> writes:

>> The problem is not the loop, but that the first wait3 will take
>> "forever" without the preceding sleep.
>
> If wait3 would block here then it would be a serious kernel bug, or
> someone is defining WNOHANG to 0.

This is observed with Linux 2.4 and 2.6 kernels -- so maybe
it could be conditioned with GNU_LINUX...?

-- 
Kim F. Storm <address@hidden> http://www.cua.dk





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