Date: Mon, 6 Mar 2006 19:29:55 +0600 From: "Denis Eremenko <moonshade@pnhz.kz>" <moonshade@pnhz.kz> To: "FreeBSD gnats submit" <FreeBSD-gnats-submit@FreeBSD.org> Subject: kern/94139: amr broken with LSILogic MegaRAID Series 428 (HP NetRAID) on 6-STABLE: reading app hangs Message-ID: <1141651795.28694@abyss.pnhz.kz> Resent-Message-ID: <200603061340.k26De3UR017553@freefall.freebsd.org>
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>Number: 94139
>Category: kern
>Synopsis: amr broken with LSILogic MegaRAID Series 428 (HP NetRAID) on 6-STABLE: reading app hangs
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Mar 06 13:40:02 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Denis Eremenko <moonshade@pnhz.kz>
>Release: FreeBSD 6.1-PRERELEASE i386
>Organization:
>Environment:
System: FreeBSD 6.1-PRERELEASE #0: Thu Feb 23 08:34:49 ALMT 2006
root@abyss.pnhz.kz:/usr/obj/data/os/FreeBSD/src/6/src/sys/ABYSS-6
>Description:
Application hangs in D state (reading from disk) while reading from amrd on 6-STABLE.
But amr(4) from 6.0-RELEASE works fine. I suppose it was broken with "LSI MegaRAID improvements".
I can be wrong, but looks like it is most likely to hang about 8Gb...
Kernel built with:
options SMP
options apic
options SCHED_4BSD
options PREEMPTION
options ADAPTIVE_GIANT
>How-To-Repeat:
dd if=/dev/amrd0 of=/dev/null bs=1m skip=8000
>Fix:
use amr(4) from 6.0-RELEASE
>Release-Note:
>Audit-Trail:
>Unformatted:
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