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Date: Wed, 23 Sep 2015 14:25:39 -0700
From: Navdeep Parhar <nparhar@gmail.com>
To: Palle Girgensohn <girgen@gmail.com>
Cc: Julien Charbon <jch@freebsd.org>, George Neville-Neil <gnn@FreeBSD.org>,
freebsd-net@freebsd.org
Subject: Re: Kernel panics in tcp_twclose
Message-ID: <20150923212539.GA2233@nparhar-pc>
Mail-Followup-To: Palle Girgensohn <girgen@gmail.com>,
Julien Charbon <jch@freebsd.org>,
George Neville-Neil <gnn@FreeBSD.org>, freebsd-net@freebsd.org
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On Wed, Sep 23, 2015 at 11:15:03PM +0200, Palle Girgensohn wrote:
...
> > By the way Palle could you also run below Dtrace script to see where
> > this tcp_close() in INP_TIMEWAIT comes from:
> >
> > $ cat tcp-close-tw.d
> > fbt::tcp_close:entry
> > /args[0]->t_inpcb->inp_flags & 0x01000000/
> > {
> > @s1[stack()] = count()
> > }
> >
> > tick-1sec {
> > printa(@s1);
> > }
> > $ sudo dtrace -s tcp-close-tw.d
>
> # dtrace -s tcp-close-tw.d
> dtrace: failed to compile script tcp-close-tw.d: line 2: t_inpcb is not a member of struct e1000_hw
>
> >
>
> on one system...
>
> and for the other two:
>
> # dtrace -s tcp-close-tw.d
> dtrace: failed to initialize dtrace: DTrace device not available on system
>
> I'm adding
>
> options KDTRACE_HOOKS
>
> to the kernels, I guess that will help?
Load the DTrace modules ("kldload dtraceall") before trying to run the
DTrace script.
Regards,
Navdeep