Date: Fri, 18 Jul 1997 14:48:13 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: adkin003@gold.tc.umn.edu Cc: current@FreeBSD.ORG, adkin003@gold.tc.umn.edu Subject: Re: 4M pages and XFree3.3 32 bit mode and crash Message-ID: <199707181948.OAA04210@dyson.iquest.net> In-Reply-To: <Pine.NEB.3.96.970718073859.23326A-100000@samthedog.gold.tc.umn.edu> from dave adkins at "Jul 18, 97 10:57:16 am"
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> > Hi, > > Since the changes in the VM subsytem to use 4M pages, X dies when loading > a background in 24 and 32 bit mode. > > Initially I thought this might just be an SMP problem, but I had the same > failure with a UP kernel. The SVGA server only supports linear address and > MMIO so I couldn't try it with those features shut off. > > It appears that when the Xserver maps a region larger than 4M, > pmap_addr_hint rounds addr to the next 4M boundary which causes the crash. > Comment out pmap_addr_hint and the Xserver run fine in 32 bit mode. > I use the XF86_SVGA server V3.3 also, and have checked operation with it. However, I use the Matrox Millenium board, and the board that you use might be different. Which board are you using? so I can inspect the code so that I can figure out what is happening. I think that I'll have a new commit ready, due to another oversight also. John
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