From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maciej Rutecki Subject: Re: [Regression] [2.6.35-rc1] ssb_is_sprom_available Date: Wed, 2 Jun 2010 16:20:13 +0200 Message-ID: <201006021620.13266.maciej.rutecki@gmail.com> References: <201005312155.20602.maciej.rutecki@gmail.com> <20100531205300.GB32708@parisc-linux.org> <20100601133402.GB26701@tuxdriver.com> Reply-To: maciej.rutecki@gmail.com Mime-Version: 1.0 Content-Type: Text/Plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Matthew Wilcox , "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: "John W. Linville" Return-path: In-Reply-To: <20100601133402.GB26701@tuxdriver.com> Sender: linux-pci-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On wtorek, 1 czerwca 2010 o 15:34:02 John W. Linville wrote: > 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.JP > > >G > > > > 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 > Yes this commit solves problem. Thanks Tested-by: Maciej Rutecki -- Maciej Rutecki http://www.maciek.unixy.pl