From cfaber@gmail.com  Tue Feb 17 21:29:26 2009
Return-Path: <cfaber@gmail.com>
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 8022B106564A
	for <FreeBSD-gnats-submit@freebsd.org>; Tue, 17 Feb 2009 21:29:26 +0000 (UTC)
	(envelope-from cfaber@gmail.com)
Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.152])
	by mx1.freebsd.org (Postfix) with ESMTP id 101A08FC13
	for <FreeBSD-gnats-submit@freebsd.org>; Tue, 17 Feb 2009 21:29:25 +0000 (UTC)
	(envelope-from cfaber@gmail.com)
Received: by fg-out-1718.google.com with SMTP id l26so558273fgb.35
        for <FreeBSD-gnats-submit@freebsd.org>; Tue, 17 Feb 2009 13:29:25 -0800 (PST)
Received: by 10.86.99.9 with SMTP id w9mr2310674fgb.12.1234904923579;
        Tue, 17 Feb 2009 13:08:43 -0800 (PST)
Received: from ?10.10.0.105? (c-67-165-212-77.hsd1.co.comcast.net [67.165.212.77])
        by mx.google.com with ESMTPS id d4sm244804fga.58.2009.02.17.13.08.42
        (version=TLSv1/SSLv3 cipher=RC4-MD5);
        Tue, 17 Feb 2009 13:08:42 -0800 (PST)
Message-Id: <499B2758.7020308@gmail.com>
Date: Tue, 17 Feb 2009 14:08:40 -0700
From: Colin Faber <cfaber@gmail.com>
To: FreeBSD-gnats-submit@freebsd.org
Subject:

>Number:         131793
>Category:       kern
>Synopsis:       (misfiled PR)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 17 21:30:03 UTC 2009
>Closed-Date:    Tue Feb 17 23:55:08 UTC 2009
>Last-Modified:  Tue Feb 17 23:55:08 UTC 2009
>Originator:     
>Release:        
>Organization:
>Environment:
>Description:
  >Submitter-Id:  current-users
  >Originator:    Colin Faber
  >Organization:  n/a
  >Confidential:  no
  >Synopsis:      Introducing new USB or eSATA disks results in atapci1+ 
 irq storm until reboot
  >Severity:      serious
  >Priority:      high
  >Category:      kern
  >Class:         sw-bug
  >Release:       FreeBSD 7.1-RELEASE-p2 amd64
  >Environment:
 System: FreeBSD hal.fpsn 7.1-RELEASE-p2 FreeBSD 7.1-RELEASE-p2 #2: Sun 
 Feb 15 12:21:19 MST 2009 cfaber@hal.fpsn:/usr/obj/usr/src/sys/HAL amd64
 
 
  >Description:
         It appears that when plugging in any USB, or eSATA disk drive, 
 atapci1+ gets stuck
         in a massive irq storm, running about 13k irqs a second. This 
 results in about 90%
         interrupt load on the system and makes everything unstable and slow.
 
         Note - this load appears even with ZERO activity on the device 
 in question and little
         or no geom activity.
 
         Also Note - this machine is running two geom_raid5 array's made 
 of geom labeled providers
 
  >How-To-Repeat:
         Build amd64 7.1-RELENG-p2 and attach any umass disk or eSata disk
  >Fix:
 
         Thus far, the only solution I've been able to find is to reboot 
 the kernel. Disconnecting the
         disk which caused the storm does not seem to cause it to slow or 
 stop. Only rebooting does.
 
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Tue Feb 17 23:54:17 UTC 2009 
State-Changed-Why:  
Resubmitted as kern/131796. 


Responsible-Changed-From-To: gnats-admin->freebsd-bugs 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Tue Feb 17 23:54:17 UTC 2009 
Responsible-Changed-Why:  

http://www.freebsd.org/cgi/query-pr.cgi?pr=131793 
>Unformatted:
