From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============5338747470401762412==" MIME-Version: 1.0 From: Fengguang Wu To: lkp@lists.01.org Subject: Re: [nand] BUG: unable to handle kernel NULL pointer dereference at 000005f4 Date: Mon, 14 Dec 2015 20:47:19 +0800 Message-ID: <20151214124719.GA27641@wfg-t540p.sh.intel.com> In-Reply-To: <20151214114244.7f13d408@bbrezillon> List-Id: --===============5338747470401762412== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Mon, Dec 14, 2015 at 11:42:44AM +0100, Boris Brezillon wrote: > Hi Fengguang, > = > On Mon, 14 Dec 2015 14:45:37 +0800 > Fengguang Wu wrote: > = > > Hi Boris, > > = > > On Sun, Dec 13, 2015 at 09:50:43PM +0100, Boris Brezillon wrote: > > > Hi Fengguang, > > > = > > > On Sun, 13 Dec 2015 09:49:17 +0800 > > > Fengguang Wu wrote: > > > = > > > > Hi Boris, > > > > = > > > > FYI, this happened when merging your branch, which indicates possib= le > > > > conflicts with other developer's patches or the new RC release. > > > = > > > Is this boot test also run on my bbrezillon-0day/nand/layering-rework > > > branch (before merging it into devel-spot), and if it is, do you see = the > > > same error? > > = > > The bisect tests bbrezillon-0day/nand/layering-rework, however it's > > fine there. > > = > > > Is the devel-spot-201512102358 tag publicly accessible? If it's not, > > = > > Nope. > > = > > > could you push it somewhere (or give me a way to generate it by > > > pulling the relevant branches), so that I can investigate on this bug= ? = > > = > > Or it may be more convenient to check linux-next first? > > = > > FYI, the merged branches in devel-spot-201512102358 are: > > = > > af8fc33 Merge 'bbrezillon-0day/nand/layering-rework' into devel-spot-20= 1512102358 > > acfc1de Merge 'linux-review/Maury-Markowitz/renaming-NTSC-file-because-= it-doesnt-actually-use-8VSV-updating-channel-listings-add-channel-numbers/2= 0151210-210449' into devel-spot-201512102358 > > fb9daac Merge 'fdmanana/integration-4.4' into devel-spot-201512102358 > > 1b30725 Merge 'fdmanana/for-chris-4.4' into devel-spot-201512102358 > > 83f2246 Merge 'arm-integrator/realview-defconfig' into devel-spot-20151= 2102358 > > 03df745 Merge 'arm-integrator/realview-multiplatform-base' into devel-s= pot-201512102358 > > d2aea29 Merge 'linux-review/Arnd-Bergmann/i2c-allow-building-emev2-with= out-slave-mode-again/20151210-211642' into devel-spot-201512102358 > > e2f041d Merge 'arm-integrator/realview-base-armsoc' into devel-spot-201= 512102358 > > 5c46550 Merge 'linux-review/Bert-Kenward/sfc-only-use-RSS-filters-if-we= -re-using-RSS/20151210-213247' into devel-spot-201512102358 > > d07f80f Merge 'sound/test/hdmi-jack' into devel-spot-201512102358 > > 540f8b7 Merge 'sound/topic/hdmi-jack' into devel-spot-201512102358 > > 9111fa0 Merge 'linux-review/matrandg-cisco-com/tc358743-Use-local-array= -with-fixed-size-in-i2c-write/20151210-214154' into devel-spot-201512102358 > > 3d81ef9 Merge 'linux-review/matrandg-cisco-com/tc358743-Print-timings-o= nly-when-debug-level-is-set/20151210-220321' into devel-spot-201512102358 > > 122e43c Merge 'bbrezillon-0day/nand/ecclayout-squashed' into devel-spot= -201512102358 > > e0572f8 Merge 'wireless-drivers-next/pending' into devel-spot-201512102= 358 > > dc5d9c9 Merge 'linux-review/Geliang-Tang/list-introduce-list_is_first/2= 0151210-222552' into devel-spot-201512102358 > > 289e2a8 Merge 'linux-review/Arnd-Bergmann/staging-davinci_vfpe-allow-mo= dular-build/20151210-223348' into devel-spot-201512102358 > > d74c50d Merge 'linux-review/Damien-Horsley/Add-driver-for-Pistachio-int= ernal-DAC/20151210-224304' into devel-spot-201512102358 > > ee3c58b Merge 'cryptodev/master' into devel-spot-201512102358 > > d390f7d Merge 'linux-review/John-Garry/hisi_sas-use-platform_get_irq/20= 151210-224851' into devel-spot-201512102358 > > de31f5d Merge 'linux-review/Mike-Marciniszyn/staging-rdma-hfi1-add-defi= nitions-for-OPA-traps/20151210-230158' into devel-spot-201512102358 > > 5618568 Merge 'linux-review/Andrei-Emeltchenko/Bluetooth-h5-Do-not-init= ialize-Configuration-field/20151210-230440' into devel-spot-201512102358 > > 759aa32 Merge 'linux-review/Moritz-K-nig/staging-COMEDI-checkpatch-pl-c= leanups-in-comedi-h/20151210-230707' into devel-spot-201512102358 > > 2edcbb4 Merge 'linux-review/Andy-Shevchenko/net-hns-annotate-IO-address= -space-properly/20151210-232510' into devel-spot-201512102358 > > 0f51fdd Merge 'integrity/next-kexec' into devel-spot-201512102358 > > b32bcbc Merge 'dm/dm-4.5' into devel-spot-201512102358 > > ea297f5 Merge 'linux-review/Mathieu-Desnoyers/thread_local_abi-system-c= all-caching-current-CPU-number-x86/20151210-234242' into devel-spot-2015121= 02358 > > 52bc163 Merge 'linux-review/yegorslists-googlemail-com/USB-serial-optio= n-add-support-for-Quectel-UC20/20151210-234659' into devel-spot-201512102358 > > 797cc7c Merge 'linux-review/Andy-Shevchenko/staging-rtl8188eu-provide-a= n-absolute-path-to-include-folder/20151210-234752' into devel-spot-20151210= 2358 > > 23d8b49 Merge 'omap-dss2/for-next' into devel-spot-201512102358 > > 88a768f 0day base guard for 'devel-spot-201512102358' > > 527e931 Linux 4.4-rc4 > > = > > > > = > > > > linux-next/master also has the problem. > > > = > > > Okay. You mean linux-next/master alone, or after merging my branch in= to > > > linux-next/master? > > = > > It's stand alone linux-next/master as indicated by the bisect log. > > Does it include any of your patches? > = > I tried to boot the next-20151214 build, before [1] and after [2] > merging my nand/layering-rework branch merged into it, and both are > booting fine. Are you using the emailed kconfig? I'd not recommend try the below step if cannot even reproduce the issue in linux-next. Thanks, Fengguang > I'll try to recreate your devel-spot locally and see if I can reproduce > the bug. > = > Best Regards, > = > Boris > = > [1]http://paste.debian.net/344112/ > [2]http://paste.debian.net/344125/ > = > -- = > Boris Brezillon, Free Electrons > Embedded Linux and Kernel engineering > http://free-electrons.com --===============5338747470401762412==--