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Date:      Wed, 28 Jun 1995 16:20:01 -0700
From:      Mark Valentine <mark@linus.demon.co.uk>
To:        freebsd-bugs
Subject:   kern/574: hang when interrupting tcpdump on dismantled ppp interface
Message-ID:  <199506282320.QAA27163@freefall.cdrom.com>
In-Reply-To: Your message of Wed, 28 Jun 1995 01:56:02 %2B0100 <199506280056.BAA00371@linus.demon.co.uk>

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>Number:         574
>Category:       kern
>Synopsis:       hang when interrupting tcpdump on dismantled ppp interface
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs (FreeBSD bugs mailing list)
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Jun 28 16:20:00 1995
>Originator:     Mark Valentine
>Organization:
>Release:        FreeBSD 2.0-BUILT-19950526 i386
>Environment:

	486DX/66, ISA, 16MB, using sd0 on an AHA1542C.
	FreeBSD-current of about a week ago (2.0-BUILT-19950617), with
	XFree86 3.1.1; kernel ppp driver with pppd 2.1.2; single ppp0
	interface (modem on ttyd1), no ethernet interfaces.

>Description:

	I've experienced a system hang (no console response) a couple
	of times now, and I think the circumstances were the same.  Both
	times I interrupted tcpdump after taking the interface (ppp0) down.
	I'm running under X.

>How-To-Repeat:

	Bring up ppp0; start tcpdump; bring down ppp0; ^C tcpdump.  The
	system freezes immediately.

>Fix:
	
	Sorry, I haven't investigated.

>Audit-Trail:
>Unformatted:





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