Date: Fri, 28 Apr 2000 17:48:06 -0500 From: "Richard Seaman, Jr." <dick@seaman.org> To: Brian Fundakowski Feldman <green@FreeBSD.org> Cc: Luoqi Chen <luoqi@watermarkgroup.com>, hackers@FreeBSD.org Subject: Re: lock-ups due to the scheduler Message-ID: <20000428174806.J370@seaman.org> In-Reply-To: <Pine.BSF.4.21.0004281809410.576-100000@green.dyndns.org>; from green@FreeBSD.org on Fri, Apr 28, 2000 at 06:13:32PM -0400 References: <20000428071726.I370@seaman.org> <Pine.BSF.4.21.0004281809410.576-100000@green.dyndns.org>
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On Fri, Apr 28, 2000 at 06:13:32PM -0400, Brian Fundakowski Feldman wrote: > On Fri, 28 Apr 2000, Richard Seaman, Jr. wrote: > > > There may be additional issues with the scheduler, though they may not > > be related to the issue you have. Check www.freebsd.org/~dick/sched.descr > > I was under the impression that Peter Dufault had re-assumed this matter, > > but not much has happened on most of the issues. > > Why don't we do a investigation (reinvestigation for you, of course), > evaluation of solutions, implementation of the best solution, and > review between all of us, and get Bruce or Peter Dufault to review > them as well? We could do this for each scheduler problem you have > listed, and get them all fixed within a month's time, if we just > handle them all as the individual cases, and work on each one > serially? > > I'm quite willing to do everything I can to help, including the > evaluation, solving, and testing of each problem separately. Be my guest. There is a patch set, now about a year old at the same site as the description. I held up working on this because no one else seemed interested (I got no comments to a posting about a year ago), plus I wasn't sure my solution (an adaptation of Peter Dufault's solution) was right for SMP. In fact, I think it wasn't. Also, I wanted to give some of the other issues more study and got sidetracked on other things. Feel free to pick up any of this. I seem to remember that Bruce had some problems with Peter Dufault's original verion of the patch set, and I'm not aware that he ever looked at my modified version. In any event, the patch set is now out of date. -- Richard Seaman, Jr. email: dick@seaman.org 5182 N. Maple Lane phone: 262-367-5450 Chenequa WI 53058 fax: 262-367-5852 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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