i386/5196: tcpdump on wpi0 -> kernel hangup

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i386/5196: tcpdump on wpi0 -> kernel hangup

Jun-ichiro itojun Hagino-2
>Number:         5196
>Category:       i386
>Synopsis:       tcpdump on wpi0 -> kernel hangup
>Confidential:   yes
>Severity:       serious
>Priority:       medium
>Responsible:    bugs
>State:          open
>Quarter:        
>Keywords:      
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 09 23:10:01 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Jun-ichiro itojun Hagino
>Release:        4.0 snapshot kernel from ftp.openbsd.org
>Organization:
net
>Environment:
        System      : OpenBSD 4.0-beta
        Architecture: OpenBSD.i386
        Machine     : i386
>Description:
        if I run tcpdump on wpi0 interface, kernel hangs up.  i could not
        go into ddb so i cannot paste stack trace (sorry).  it could be
        wpi firmware issue (i'm not sure).
>How-To-Repeat:
        have a PC with wpi interface.
        configure and use wpi interface.
        run "tcpdump -i wpi0".
        wait for a little while.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
 Jun-ichiro itojun Hagino