Date: Thu, 13 Jul 1995 13:20:40 -0500 From: Terry Lee <terry@uivlsi.csl.uiuc.edu> To: freebsd-hackers@freebsd.org Subject: NCR PCI needs BOUNCE_BUFFERS? Message-ID: <199507131820.AA01603@uivlsi.csl.uiuc.edu>
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I helped a friend install FreeBSD-2.0.5-950622-SNAP on his new Pentium PC last night. Everything went fine, so I went ahead and configured a new custom kernel for him. Since the only bus master card is an NCR 825 SCSI host adapter, I disabled BOUNCE_BUFFERS. But then the disk would only work for a few seconds before getting "COMMAND FAILED" errors. Enabling BOUNCE_BUFFERS fixed the problem. Is BOUNCE_BUFFERS needed for PCI systems with no ISA bus master cards? By the way, my friend (a Linux user) decided to give FreeBSD a try because apparently the Linux NCR driver does not support wide disks yet. He was pretty impressed by the installation program. Good job guys! Terry Lee terry@uivlsi.csl.uiuc.edu
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