Date: Fri, 5 Jun 1998 01:43:04 -0500 (EST) From: "John S. Dyson" <dyson@FreeBSD.ORG> To: peter@netplex.com.au (Peter Wemm) Cc: dyson@FreeBSD.ORG, eivind@yes.no, current@FreeBSD.ORG Subject: Re: Odd VM behaviour Message-ID: <199806050643.BAA00586@dyson.iquest.net> In-Reply-To: <199806050620.OAA28939@spinner.netplex.com.au> from Peter Wemm at "Jun 5, 98 02:20:29 pm"
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Peter Wemm said: > "John S. Dyson" wrote: > > Eivind Eklund said: > > > > > > When I kill -9 a frozen netscape (which has a lot of paged out pages), > > > my machine freeze in mad swapping for several seconds. Is this > > > anticipated behavour? > > > > > I have seen that on Netscape 3.0. It seems that recent -current is > > better than older versions of -current and 2.2. > > I've seen it too. What I find odd is that there is so much intense paging > supposedly just to free the address space. I'm curious why it pages in > anything (much) just to free it all up. :-) A kill -9 doesn't cause any > execution, so it shouldn't be the result of signal handlers firing up and > paging data in etc. > > Of course, if the paging is a result of trying to free up space for > temporary VM tables etc, then maybe that's different - but it still seems > awfully big. > There are some severe bugs in that area. While working on the improved SMP VM stuff, I have found some more window conditions. Maybe the fixes will help. -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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