netdev - Re: HCI crash after tearing down ppp connection

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Date:	Wed, 28 Jan 2009 10:53:32 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Marcel Holtmann <marcel@...tmann.org>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: HCI crash after tearing down ppp connection

Hi Marcel,

> > I use /dev/rfcomm0 to connect to my cell phone, and then to the internet
> > with ppp. Occasionally (two out of the three times I used it today)
> > after I poff the connection the machine locks up. The second time I got
> > a log, but because my display resolution is bad it mostly scrolled off,
> > so I only got to see that hci was involved somehow :/
> > 
> > Anyone aware of any such issue? This is on
> > 2.6.29-rc2-wl-11979-gc32422d-dirty (-rc2 + wireless bits).
> 
> I was assuming we fixed these, but we might ended with a new one since
> the TTY is changing a little bit and the Bluetooth TTYs are special
> since they are pure virtual TTYs. Can you reproduce this crash every
> time or is it happening only now and then?

Well, it's not happening every time, but fairly often.

> During the last weeks, I am chasing an USB issue with the USB anchors
> and how we use it. You might be hitting the one.

Yeah, I wish I could capture more information here. Can't seem to figure
out how to get more VT resolution. I'll try again. :/

johannes

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