The following reply was made to PR kernel/6351; it has been noted by GNATS.

From: Salvador Fandino <[email protected]>
To: Cc: [email protected]
Subject: Re: kernel/6351: top reports ~80% of CPU is in interrupt handling
Date: Wed, 07 Apr 2010 18:08:54 +0200

 On 04/07/2010 05:32 PM, Salvador Fandiqo wrote:
 >> Number:         6351
 >> Category:       kernel
 >> Synopsis:       top reports ~80% of CPU is in interrupt handling
 >> Confidential:   yes
 >> Severity:       serious
 >> Priority:       medium
 >> Responsible:    bugs
 >> State:          open
 >> Quarter:
 >> Keywords:
 >> Date-Required:
 >> Class:          sw-bug
 >> Submitter-Id:   unknown
 >> Arrival-Date:   Wed Apr 07 15:40:01 GMT 2010
 >> Closed-Date:
 >> Last-Modified:
 >> Originator:
 >> Release:
 >> Organization:
 >> Environment:
 >       System      : OpenBSD 4.7
 >       Details     : OpenBSD 4.7-current (GENERIC) #592: Mon Apr  5
 > 22:31:00 MDT 2010
 >
 > [email protected]:/usr/src/sys/arch/i386/compile/GENERIC
 >
 >       Architecture: OpenBSD.i386
 >       Machine     : i386
 >> Description:
 >     top and systat report that around 80% of the processor time goes into
 > interrupts
 
 note that it doesn't look like an interrupt storm. 'vmstat -i' reports
 100 interrupts per second comming from the clock plus a few extra (<5)
 from the other sources.
 
 - Salva

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