Date: Thu, 7 Feb 2002 13:36:36 -0800 (PST) From: Craig <craig@avnet.co.uk> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/34711: frequent system stall under moderate scsi load Message-ID: <200202072136.g17Laas84335@freefall.freebsd.org>
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>Number: 34711
>Category: kern
>Synopsis: frequent system stall under moderate scsi load
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Feb 07 13:40:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: Craig
>Release: 4.1
>Organization:
none
>Environment:
>Description:
the OS appears to hang fairly frequently under moderate load.
all connections get stalled, and sometimes dropped.
occasionally the server reboots itself.
i initialy thought it might be a file locking problem with the buletin board software, but i think it is more fundemental than that.
>How-To-Repeat:
cannot provide a way to repeat, but having looked through previous reports, it could be large file movement related.
the server does nothing except serve two UBB forums.
if more than a couple of people try to post at once, then the process queue fills up with the perl pids and starts the problem.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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