From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John W. Linville" Subject: Re: [Regression] [2.6.35-rc1] ssb_is_sprom_available Date: Tue, 1 Jun 2010 09:34:02 -0400 Message-ID: <20100601133402.GB26701@tuxdriver.com> References: <201005312155.20602.maciej.rutecki@gmail.com> <20100531205300.GB32708@parisc-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Maciej Rutecki , "linux-kernel@vger.kernel.org" , linux-pci@vger.kernel.org, linux-usb@vger.kernel.org, "Rafael J. Wysocki" , netdev@vger.kernel.org, Michael Buesch To: Matthew Wilcox Return-path: Content-Disposition: inline In-Reply-To: <20100531205300.GB32708@parisc-linux.org> Sender: linux-pci-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Mon, May 31, 2010 at 02:53:00PM -0600, Matthew Wilcox wrote: > On Mon, May 31, 2010 at 09:55:20PM +0200, Maciej Rutecki wrote: > > Last known good: 2.6.34 > > Failing kernel: 2.6.35-rc1 > > > > subsystem: PCI, USB(?) > > > > Kernel dies during booting on message "ssb_is_sprom_available", see picture: > > http://www.unixy.pl/maciek/download/kernel/2.6.35-rc1/gumis/DSC_0011.JPG > > Um, looks like it's something to do with the Sonics Silicon Backplane, > not PCI, nor USB. Fix is on its way... commit da1fdb02d9200ff28b6f3a380d21930335fe5429 Author: Christoph Fritz Date: Fri May 28 10:45:59 2010 +0200 ssb: fix NULL ptr deref when pcihost_wrapper is used Ethernet driver b44 does register ssb by it's pcihost_wrapper and doesn't set ssb_chipcommon. A check on this value introduced with commit d53cdbb94a52a920d5420ed64d986c3523a56743 and ea2db495f92ad2cf3301623e60cb95b4062bc484 triggers: BUG: unable to handle kernel NULL pointer dereference at 00000010 IP: [] ssb_is_sprom_available+0x16/0x30 Signed-off-by: Christoph Fritz Signed-off-by: John W. Linville -- John W. Linville Someday the world will need a hero, and you linville@tuxdriver.com might be all we have. Be ready.