Date: Sun, 8 Sep 2002 22:35:55 +0100 (BST) From: Mark Knight <markk@knigma.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/42563: ATA Tagged Queuing wedges -STABLE Message-ID: <200209082135.g88LZtaF001654@shrewd.lan.knigma.org>
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>Number: 42563 >Category: bin >Synopsis: ATA Tagged Queuing wedges -STABLE >Confidential: no >Severity: critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Sep 08 14:40:04 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Mark Knight >Release: FreeBSD 4.7-PRERELEASE i386 >Organization: >Environment: System: FreeBSD shrewd.lan.knigma.org 4.7-PRERELEASE FreeBSD 4.7-PRERELEASE #0: Sun Sep 8 13:07:18 BST 2002 root@shrewd.lan.knigma.org:/slave/usr/obj/usr/src/sys/SHREWD i386 >Description: ad0: READ command timeout tag=0 serv=0 - resetting ad0: invalidating queued requests ata0: resetting devices .. ad0: invalidating queued requests ad0: DMA limited to UDMA33, non-ATA66 cable or device ad1: invalidating queued requests done ad0: timeout waiting for READY ad0: invalidating queued requests - resetting ata0: resetting devices .. ad0: invalidating queued requests ad0: DMA limited to UDMA33, non-ATA66 cable or device ad1: invalidating queued requests ad0: no request for tag=0 ... until the system wedges solid Further information: http://www.knigma.org/freebsd/tagdeath/info.txt >How-To-Repeat: Occured twice. I was using dump from ad0 -> a file on ad1. At the same time, I was browsing some large .jpg's on ad0 using xzgv. On both occations the dump had been running for several hours before the failure. The simultaneous xzgv appeared to be the trigger. Before setting hw.ata.tags="1" today, to test 4.7-PRERELEASE (first time I've every tried tagged queuing), the system was very stable. >Fix: Don't set hw.ata.tags="1". >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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