From mboxrd@z Thu Jan  1 00:00:00 1970
From: Franck Bui-Huu <vagabon.xyz@gmail.com>
Subject: Re: Question about process freezing
Date: Wed, 21 Nov 2007 08:46:26 +0100
Message-ID: <4743E252.2010805@gmail.com>
References: <Pine.LNX.4.44L0.0711201036340.3931-100000@iolanthe.rowland.org>
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To: Alan Stern <stern@rowland.harvard.edu>
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Alan Stern wrote:
> On Tue, 20 Nov 2007, Franck Bui-Huu wrote:
>> Instead of freezing every single user land processes by sending them a
>> fake signal and waiting for them to go to the refrigerator, why not
>> freezing the scheduler ?
> 
> Because processes can't simply be frozen immediately.  They need to 
> have a chance to release any important locks or mutexes they may be 
> holding.
> 

You mean any locks held by a frozen process and needed by the suspend
code path ?

thanks,
		Franck