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From: Peter Chubb <peter@chubb.wattle.id.au>
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Date: Wed, 29 Oct 2003 09:23:50 +1100
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Pavel Machek <pavel@suse.cz>, felipe_alfaro@linuxmail.org, mochel@osdl.org,
       george@mvista.com, johnstul@us.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [pm] fix time after suspend-to-*
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>>>>> "Stephen" == Stephen Rothwell <sfr@canb.auug.org.au> writes:

Stephen> On Tue, 28 Oct 2003 10:32:33 +0100 Pavel Machek
Stephen> <pavel@suse.cz> wrote:
Stephen> We could invent a new signal whose default action is ignore
Stephen> ... Solaris has SIGFREEZE and SIGTHAW (the comment in the
Stephen> header file says used by CPR - whatever that is).  SIGSUSPEND
Stephen> and SIGRESUME?

CPR -- checkpoint/restart

POSIX said to use SIGCKPT and SIGCONT (in at least *one* of the draft
1003.1m standards -- I've lost access to them recently, and the
working group stopped working back in 2000)

Suspend/resume is essentially a system-wide checkpoint+restart.

Maybe use SIGCKPT and SIGCONT?  Or even SIGSTOP and SIGCONT (after
all, you're stopping the process, then restarting it)

--
Dr Peter Chubb  http://www.gelato.unsw.edu.au  peterc AT gelato.unsw.edu.au
You are lost in a maze of BitKeeper repositories,   all slightly different.