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Date:      Fri, 15 Nov 2002 00:06:51 +1100
From:      Tim Robbins <tjr@FreeBSD.org>
To:        current@FreeBSD.org
Subject:   truss and KSE
Message-ID:  <20021115000651.A46903@dilbert.robbins.dropbear.id.au>

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While experimenting with the new libpthread, I found that if you run
`truss' on a KSE process, both truss and its victim get into a weird
state and don't respond to TERM, INT or QUIT signals. The truss proc
dies if you send it the KILL signal, but the victim process cannot be
killed. Stranger still, it's in the run state but not actually
performing any work.

I understand that KSE is still an experimental feature but I thought
this was worth pointing out because it could be used as a local DoS
and we are nearing 5.0-RELEASE.


Tim

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