Date: Wed, 14 Jan 1998 19:44:56 +0100 From: Prischl Roman <roman@freebee.tu-graz.ac.at> To: aic7xxx@FreeBSD.ORG Subject: Linux AHA-2940AU & Zip Plus problem (2.1.78) Message-ID: <3.0.1.32.19980114194456.006bc98c@freebee.tu-graz.ac.at>
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Hello! It seems that I got troubles with the 2.1.78 Linux-Kernel. Everything starts to load right.... When I try to copy some file(s) (actually more MBytes) after a few seconds there are messages which tell "(scsi0:5:0) Underflow - Wanted at least xxxxx, got yyyyy, residual SG count 1" and "(scsi0:5:0) Data Overrun of xxxxx bytes detected in Data-Out phase, tag 0; forcing a retry" This happens a few times and then the scsi-system stops working. Both LEDs (Zip & Hostadapter) keep ON (not flickering as under normal transfers) and there's no further transfer. The only way to get out of this situation is to do a hardreset. I tried every option (Linux: QueueTagging ON/OFF, SCB ON/OFF, AHA-2940AU BIOS: Enable/Disable Disconnect) I saw.... Under Linux 2.0.32 there are no problems with this configuration (as there aren't in Win95 *shame* too...). My hardware is i586 AHA-2940AU (Only extern devices, therefore manual termination enabled) HP Scanjet 4p Iomega Zip Plus Drive I compiled the 2.1.78 kernel with scsi-core in kernel and sd_mod,sg and aic7xxx as modules (kerneld). Thankx for your hints... Roman
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