Date: Sun, 8 Oct 1995 19:58:21 -0700 (PDT) From: John Dyson <dyson> To: peter@haywire.dialix.com (Peter Wemm) Cc: freebsd-current@freebsd.org Subject: Re: vm_page_free panic with KTRACE Message-ID: <199510090258.TAA20302@freefall.freebsd.org> In-Reply-To: <45a1q9$gi$1@haywire.DIALix.COM> from "Peter Wemm" at Oct 9, 95 10:35:53 am
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> > swallace@ece.uci.edu (Steven Wallace) writes: > > >I just noticed that doing a ktrace will cause a vm_page_free panic: > >vm_page_free: offset(46092288), bmapped(0), busy(1), PG_BUSY - freeing busy pg. > > >Just do a ktrace and then during or shortly after while swapping > >it will panic. Don't do ktrace, system up for long time. > >Same ktrace/free bug in today -current and sept 25 -current kernel of mine. > > >Steven > > >P.S. I *need* ktrace to debug the stupid ibcs2 emulator (: > > Ahh.. So I wasn't imagining it! I've had this turn up occasionally > for quite some time now. > > The last time was a couple of days ago when I was trying to ktrace the > -current "port" of screen which doesn't work. (it only works if > setuid is turned off) > > -Peter > Working on it and awaiting a response from Steven if my work-around fixes the problem for now!!! John dyson@freebsd.org
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