From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============2408743486965479922==" MIME-Version: 1.0 From: Boris Brezillon To: lkp@lists.01.org Subject: Re: [nand] BUG: unable to handle kernel NULL pointer dereference at 000005f4 Date: Mon, 14 Dec 2015 11:42:44 +0100 Message-ID: <20151214114244.7f13d408@bbrezillon> In-Reply-To: <20151214064537.GA5341@wfg-t540p.sh.intel.com> List-Id: --===============2408743486965479922== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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 possible > > > 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-2015= 12102358 > acfc1de Merge 'linux-review/Maury-Markowitz/renaming-NTSC-file-because-it= -doesnt-actually-use-8VSV-updating-channel-listings-add-channel-numbers/201= 51210-210449' 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-2015121= 02358 > 03df745 Merge 'arm-integrator/realview-multiplatform-base' into devel-spo= t-201512102358 > d2aea29 Merge 'linux-review/Arnd-Bergmann/i2c-allow-building-emev2-withou= t-slave-mode-again/20151210-211642' into devel-spot-201512102358 > e2f041d Merge 'arm-integrator/realview-base-armsoc' into devel-spot-20151= 2102358 > 5c46550 Merge 'linux-review/Bert-Kenward/sfc-only-use-RSS-filters-if-we-r= e-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-w= ith-fixed-size-in-i2c-write/20151210-214154' into devel-spot-201512102358 > 3d81ef9 Merge 'linux-review/matrandg-cisco-com/tc358743-Print-timings-onl= y-when-debug-level-is-set/20151210-220321' into devel-spot-201512102358 > 122e43c Merge 'bbrezillon-0day/nand/ecclayout-squashed' into devel-spot-2= 01512102358 > e0572f8 Merge 'wireless-drivers-next/pending' into devel-spot-201512102358 > dc5d9c9 Merge 'linux-review/Geliang-Tang/list-introduce-list_is_first/201= 51210-222552' into devel-spot-201512102358 > 289e2a8 Merge 'linux-review/Arnd-Bergmann/staging-davinci_vfpe-allow-modu= lar-build/20151210-223348' into devel-spot-201512102358 > d74c50d Merge 'linux-review/Damien-Horsley/Add-driver-for-Pistachio-inter= nal-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/2015= 1210-224851' into devel-spot-201512102358 > de31f5d Merge 'linux-review/Mike-Marciniszyn/staging-rdma-hfi1-add-defini= tions-for-OPA-traps/20151210-230158' into devel-spot-201512102358 > 5618568 Merge 'linux-review/Andrei-Emeltchenko/Bluetooth-h5-Do-not-initia= lize-Configuration-field/20151210-230440' into devel-spot-201512102358 > 759aa32 Merge 'linux-review/Moritz-K-nig/staging-COMEDI-checkpatch-pl-cle= anups-in-comedi-h/20151210-230707' into devel-spot-201512102358 > 2edcbb4 Merge 'linux-review/Andy-Shevchenko/net-hns-annotate-IO-address-s= pace-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-cal= l-caching-current-CPU-number-x86/20151210-234242' into devel-spot-201512102= 358 > 52bc163 Merge 'linux-review/yegorslists-googlemail-com/USB-serial-option-= add-support-for-Quectel-UC20/20151210-234659' into devel-spot-201512102358 > 797cc7c Merge 'linux-review/Andy-Shevchenko/staging-rtl8188eu-provide-an-= absolute-path-to-include-folder/20151210-234752' into devel-spot-2015121023= 58 > 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 into > > 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. 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 --===============2408743486965479922==--