Date: Wed, 24 May 2000 19:41:59 +0200 From: Martin Cracauer <cracauer@cons.org> To: Peter Wemm <peter@FreeBSD.ORG> Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/i386 mem.c Message-ID: <20000524194159.A74787@cons.org> In-Reply-To: <200005241422.HAA63818@freefall.freebsd.org>; from peter@FreeBSD.ORG on Wed, May 24, 2000 at 07:22:22AM -0700 References: <200005241422.HAA63818@freefall.freebsd.org>
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In <200005241422.HAA63818@freefall.freebsd.org>, Peter Wemm wrote: > peter 2000/05/24 07:22:22 PDT > > Modified files: > sys/i386/i386 mem.c > Log: > pmap_enter() masked off the page offset bits, pmap_kenter() did not. > This (I believe) is the cause of the XFree86 startup and/or mptable(8) > panics when programs were reading from /dev/mem at non-page-aligned > offsets. The offsets were being converted into random page flags in the > page tables. :-( (including PG_PS = 4MB page size) Fixed it for me. Thanks! Martin -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Martin Cracauer <cracauer@cons.org> http://www.cons.org/cracauer/ BSD User Group Hamburg, Germany http://www.bsdhh.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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