Date: Fri, 15 Nov 1996 06:57:02 -0500 (EST) From: Keith Mitchell <kmitch@unix.guru.org> To: gibbs@freefall.freebsd.org (Justin T. Gibbs) Cc: scsi@freebsd.org Subject: Re: SCB paging is most dangerous option now! Message-ID: <199611151157.GAA00433@unix.guru.org> In-Reply-To: <199611142050.MAA04525@freefall.freebsd.org> from "Justin T. Gibbs" at "Nov 14, 96 12:50:39 pm"
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> It seems to work fine on my P54TP4 with a 2940, so it may be related > to the PCI-PCI bridge on the 3940. I know that Stefan made some > changes in this area, so perhaps he knows. Basically I rely on > the return value of pci_map_mem. If it succeeds, I use Mem I/O. > If not, I use PIO. Well, All is not totally well. Last night during the backup, I got: sd0(ahc0:0:0): timed out in dataout phase, SCSISIGI == 0x4 SEQADDR == 0x13d Ordered Tag queued sd0(ahc0:0:0): timed out in dataout phase, SCSISIGI == 0x4 SEQADDR == 0x13c sd0(ahc0:0:0): timed out in dataout phase, SCSISIGI == 0x4 SEQADDR == 0x13c ahc0: Issued Channel A Bus Reset. 3 SCBs aborted Ordered Tag sent st0(ahc0:4:0): UNIT ATTENTION asc:29,0 st0(ahc0:4:0): Power on, reset, or bus device reset occured Ordered Tag sent st0(ahc0:4:0): timed out in datain phase, SCSISIGI == 0xc6 After this happened the computer rebooted but the sd0 drive seemed to be "offline". I had to power cycle to bring it back up. This is without either patch. Should I try one of those to see if it fixes it?? Thanks.
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