Date: Mon, 24 Jan 2005 20:49:24 -0800 (PST) From: "Kamal R. Prasad" <kamalpr@yahoo.com> To: hackers@freebsd.org Subject: Re: Resuming from a crashdump Message-ID: <20050125044924.1568.qmail@web52704.mail.yahoo.com> In-Reply-To: <Pine.BSI.4.58L.0501241423530.27294@vp4.netgate.net>
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--- ctodd@chrismiller.com wrote: [snip] > > Well booting the kernel generally takes little time, > but if all the > processes could be restored this would be a step in > the right direction. If restoring a previously executing program can recover some *context*, then it makes sense to restore. If you want to restore a process just to save bringup time -that is a different issue. > As John said, restoring the state of some programs > will have to rely on > the program, but perhaps this could lead to an API > of some sort that would > make this less painful on the program author. I am working on this with the author of checkpointing in dragonfly (Kip Macy). Basically, the program author will decide when to save the context of a process and it will depend on how it interacts with the system. Saving a shadow copy of the kernel is rather difficult. regards -kamal __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail
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