From owner-freebsd-bugs  Fri Mar 19 13:50:33 1999
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Date: Fri, 19 Mar 1999 13:49:45 -0800 (PST)
From: ath@niksun.com
To: freebsd-gnats-submit@freebsd.org
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Subject: kern/10676: 3.1-RELEASE deadlocks under load with processes in vmwait
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>Number:         10676
>Category:       kern
>Synopsis:       3.1-RELEASE deadlocks under load with processes in vmwait
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Mar 19 13:50:01 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     Andrew Heybey
>Release:        3.1-RELEASE
>Organization:
Niksun, Inc.
>Environment:
FreeBSD alpha.niksun.com 3.1-RELEASE FreeBSD 3.1-RELEASE #1: Wed Mar 17 15:06:52 EST 1999     ath@alpha.niksun.com:/usr/src/sys/compile/ALPHA  i386
>Description:
Under heavy network and disk load, the machine locks up (or at
least any process that wants some pages gets stuck in vmwait).

ddb reveals many processes in "vmwait" with others (including
the pagedaemon() in "inode" wait.
>How-To-Repeat:
I have two fxp fastethernets each receiving about 15k 512-byte pkts/sec.
The above data (~15MB/sec) is all being written to a ccd partition
striped across three disks.
Several processes are also reading the above data.

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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