linux-kernel - Re: bluetooth still corrupts memory in 2.6.25-rc6

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Message-ID: <20080320070545.GA17356@elf.ucw.cz>
Date:	Thu, 20 Mar 2008 08:05:45 +0100
From:	Pavel Machek <pavel@....cz>
To:	Dave Young <hidave.darkstar@...il.com>
Cc:	Jiri Slaby <jirislaby@...il.com>, marcel@...tmann.org,
	maxk@...lcomm.com, kernel list <linux-kernel@...r.kernel.org>,
	linux-bluetooth@...r.kernel.org
Subject: Re: bluetooth still corrupts memory in 2.6.25-rc6

Hi!

> >  >>> ...just leave ppp-over-cellphone-over-bluetooth running, and do
> >  >>> s2ram...
> >  >>>
> >  >>> Linux version 2.6.25-rc6 (pavel@amd) (gcc version 4.1.3 20071209 (prerelease) (Debian 4.1.2-18)) #186 SMP Wed Mar 19 00:46:05 CET 2008
> >  >>> BIOS-provided physical RAM map:
> >  >> Pavel, does the "still" from $SUBJ mean, that 2.6.24 is affected too (if
> >  >> this is the same what I hit)?
> >  >
> >  > Hey, I did not do careful analysis. I believe it is the same problem
> >  > that affects 2.6.24, too, yes. But I actually believe it is much older
> >  > than that...
> >
> >  If yes, then I got the crash by using hidp over l2cap with non-hid device
> >  (session->input). I'm not sure if it was connected at all and even if hidd was
> >  running (I tested moving with mouse by cellphone with switching on and off the
> >  daemon, since it needed some little changes).

If you have easy/reproducible way of triggering that crash, yes that
would be useful.

...just leave ppp-over-cellphone-over-bluetooth running, and do
s2ram... takes few tries to reproduce, and you need to set up ppp each
time, so it is quite nasty to debug...

> >  If you, hci fellows, are interested I might send more detailed description of
> >  the crash tomorrow.

									Pavel
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