Date: Mon, 24 Oct 2005 17:19:42 GMT From: "Simson L. Garfinkel" <simsong@acm.org> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/87934: atacontrol attach ata0 causes momentary system freeze on 6.0-RC1; did not do so on 5.4 Message-ID: <200510241719.j9OHJgf5090903@www.freebsd.org> Resent-Message-ID: <200510241720.j9OHKDIA021341@freefall.freebsd.org>
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>Number: 87934
>Category: i386
>Synopsis: atacontrol attach ata0 causes momentary system freeze on 6.0-RC1; did not do so on 5.4
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Oct 24 17:20:12 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Simson L. Garfinkel
>Release: 6.0-RC1
>Organization:
Harvard University
>Environment:
FreeBSD left.ex.com 6.0-RC1 FreeBSD 6.0-RC1 #0: Sun Oct 9 20:32:57 UTC 2005 root@x64.samsco.home:/usr/obj/usr/src/sys/GENERIC i386
>Description:
Because of my work, I frequently detach and re-attach ATA drives. Under FreeBSD 5.4 this works like a charm. But on the system on which I am running 6.0-RC1, the system freezes whenever one of the ATA drives that I am trying to attach has a hardware problem. This is roughly 1 out of 5 drives and creates a real hassle.
>How-To-Repeat:
"attacontrol attach ata0" when the drive that is there doesn't work well. The system will freeze for 5 seconds or so, during which time console toggling doesn't work. This leads me to suspect that interrupts are being disabled for an inappropriately long time.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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