linux-kernel - Re: [Bug #10713] ehci splatter in 2.6.26-rc2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20080520082521.GA19889@xi.wantstofly.org>
Date:	Tue, 20 May 2008 10:25:21 +0200
From:	Lennert Buytenhek <buytenh@...tstofly.org>
To:	David Brownell <david-b@...bell.net>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	akpm@...ux-foundation.org, nico@....org
Subject: Re: [Bug #10713] ehci splatter in 2.6.26-rc2

On Mon, May 19, 2008 at 11:13:11PM -0700, David Brownell wrote:

> > A bisect turns up this:
> > 
> >         7329e211b987a493cbcfca0e98c60eb108ab42df is first bad commit
> >         commit 7329e211b987a493cbcfca0e98c60eb108ab42df
> >         Author: Alan Stern <stern@...land.harvard.edu>
> >         Date:   Thu Apr 3 18:02:56 2008 -0400
> > 
> >             USB: root hubs don't lie about their number of TTs
> >             
> >             Currently EHCI root hubs enumerate with a bDeviceProtocol code
> >             indicating that they possess a Transaction Translator.  However the
> >             vast majority of controllers do not...
> > 
> > And indeed, reverting this commit from 2.6.26-rc3 makes my system
> > stop oopsing when I plug in the USB-PS/2 adapter (a low speed device),
> > and makes it work again as it did in 2.6.25.
> > 
> > Any other info I can provide or tests I can run?
> 
> I'm guessing that this has a version of the ARC/TDI/whoever-now-owns-it
> IP, on a PCI bus?  But without the integrated TT option?
> 
> If this is on a PCI bus, then try removing the ehci-pci.c line added
> by that patch, see if that helps.

No, this is not on a PCI bus -- this is the on-chip EHCI controller
of the Marvell Orion ARM SoC (ehci-orion.c.)

I have honestly no idea whether the IP is in-house or third-party.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/