Date: Sat, 30 Sep 95 19:00 MET From: dirk@hal.in-berlin.de To: FreeBSD-gnats-submit@freebsd.org Subject: kern/756: AHA-1542CF: adapter not taking commands Message-ID: <m0sz6DT-0008OVC@hal.in-berlin.de> Resent-Message-ID: <199509301820.LAA10101@freefall.freebsd.org>
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>Number: 756 >Category: kern >Synopsis: AHA-1542CF: adapter not taking commands >Confidential: no >Severity: serious >Priority: high >Responsible: freebsd-bugs >State: open >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Sep 30 11:20:00 PDT 1995 >Last-Modified: >Originator: Dirk Froemberg >Organization: unorganized >Release: FreeBSD 2.1.0-950726-SNAP i386 >Environment: FreeBSD 2.1.0-950726-SNAP #9: Sat Sep 30 14:04:17 MET 1995 CPU: i486DX (486-class CPU) real memory = 16384000 (4000 pages) aha0: AHA-1542CF BIOS v2.01-VC.0, enabling mailbox, enabling residuals (aha0:0:0): "IBM DPES-31080 S31Q" type 0 fixed SCSI 2 (aha0:1:0): "FUJITSU M2694ES-512 812A" type 0 fixed SCSI 2 (aha0:2:0): "WANGTEK 51000 SCSI 75F5" type 1 removable SCSI 2 >Description: After a while of accessing two disks at the same time the disks time out and the adapter is not taking commands any longer. Messages from the console: sd0: timed out sd1: timed out aha0: adapter not taking commands.. frozen?! aha0: MBO 02 and not 00 (free) It does not seem to matter whether the access is reading or writing. FreeBSD 1.1.5.1-R has no problems dealing with two disks at a time. 1.1.5.1-R does not enable residuals during the boot-up. But commenting out the correspondend part of 2.1.0-950726-SNAP-aha1542.c does not affect the lock up. This problem seems to be similar to those described in kern/586 and kern/637. >How-To-Repeat: Put "heavy" load on at least two disks. E. g. find <mount-point-of-disk-1> -ls -ls > /dev/null & find <mount-point-of-disk-2> -ls -ls > /dev/null & >Fix: Temporarily this can be fixed by disabling disconnection in the adapter's setup. >Audit-Trail: >Unformatted:
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