From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5F844C43334 for ; Wed, 15 Jun 2022 13:33:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=QiTVNphSVlpqpWOGDFgBw46T4NCa4TL3Nw47g13hs2Y=; b=3yEaOgGE+LWpYq c5kfCiBgcVuybK0aoBRmw5ClIG7AFeM3K68zTHAZ5yuY1lCoQXDrCpS/H2ls7VBzNNZNj+P9lX+na 6w2wYPByKG1eUsdjddoZg5J1do36Bzj/M6PbcqA9+gjDMmjtVhOIqPDAWU4VDgBVSfRV32w+EkdYL pGgyjK9br+m0DnU2y+7GQ4x5ji6Tbhun5U9HtagT9N0c0fcYTJ1nCB5JMlKaaPf0HuUb/YJ14Cgcz dOhuD1jSy2ofJa5WsOwHPmwW3G4JUeH8+EyQkW6vGkqPeH7/tx4aKobuuZ/M+9U4p7duqrZ8cSste plSB93CiC2ZWYGnnG6KA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o1T83-00EixI-Jh; Wed, 15 Jun 2022 13:32:15 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o1T7w-00Eit6-1w for linux-arm-kernel@lists.infradead.org; Wed, 15 Jun 2022 13:32:13 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4144C139F; Wed, 15 Jun 2022 06:32:03 -0700 (PDT) Received: from FVFF77S0Q05N (unknown [10.57.38.208]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1DE3A3F40C; Wed, 15 Jun 2022 06:32:00 -0700 (PDT) Date: Wed, 15 Jun 2022 14:31:51 +0100 From: Mark Rutland To: Naresh Kamboju Cc: open list , Linux-Next Mailing List , Linux ARM , regressions@lists.linux.dev, Pasha Tatashin , Tejun Heo , Hao Luo , Matthew Wilcox , Muchun Song , Bjorn Andersson , Nicolas Dechesne , Arnd Bergmann Subject: Re: [next] arm64: db410c: Internal error: Oops: 96000004 - pc : sysfs_kf_seq_show Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220615_063208_292432_3EA6456D X-CRM114-Status: GOOD ( 15.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jun 15, 2022 at 02:27:31AM +0530, Naresh Kamboju wrote: > Following kernel crash reported while booting arm64 db410c board with > Linux next-20220614 [1] kfence enabled on this kernel. > > CONFIG_KFENCE=y Was that just defconfig + CONFIG_KFENCE? Does this not happen *without* KFENCE? FWIW, I tried your Image in a KVM VM on a ThunderX2 host, and I cannot reproduce the issue, so it looks like this is board-specific (e.g. due to specific drivers). Looking at the backtrace, nothing seems to finger kfence specifically. Can you bisect this? It looks like there are ~1700 commits between mainline and next-20220614, which is ~10 steps if mainline is working. Mark. > Reported-by: Linux Kernel Functional Testing > > Boot log: > --------- > [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd030] > [ 0.000000] Linux version 5.19.0-rc2-next-20220614 > (tuxmake@tuxmake) (aarch64-linux-gnu-gcc (Debian 11.3.0-3) 11.3.0, GNU > ld (GNU Binutils for Debian) 2.38) #1 SMP PREEMPT @1655189659 > [ 0.000000] Machine model: Qualcomm Technologies, Inc. APQ 8016 SBC > [ 0.000000] efi: UEFI not found. > [ 0.000000] [Firmware Bug]: Kernel image misaligned at boot, please > fix your bootloader! > > [ 0.000000] kfence: initialized - using 2097152 bytes for 255 > objects at 0x(____ptrval____)-0x(____ptrval____) > > [ 11.317288] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000000 > [ 11.317361] Mem abort info: > [ 11.317906] Unable to handle kernel paging request at virtual > address 0000000029f63007 > [ 11.328825] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000009 > [ 11.334704] ESR = 0x0000000096000004 > [ 11.343115] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000000 > [ 11.357163] Mem abort info: > [ 11.357217] ESR = 0x0000000096000004 > [ 11.359935] Mem abort info: > [ 11.369085] Mem abort info: > [ 11.369138] ESR = 0x0000000096000004 > [ 11.373564] EC = 0x25: DABT (current EL), IL = 32 bits > [ 11.374530] SET = 0, FnV = 0 > [ 11.382591] EC = 0x25: DABT (current EL), IL = 32 bits > [ 11.382864] SET = 0, FnV = 0 > [ 11.400484] ESR = 0x0000000096000004 > [ 11.411713] EC = 0x25: DABT (current EL), IL = 32 bits > [ 11.411776] SET = 0, FnV = 0 > [ 11.422177] EA = 0, S1PTW = 0 > [ 11.422234] FSC = 0x04: level 0 translation fault > [ 11.422724] EC = 0x25: DABT (current EL), IL = 32 bits > [ 11.424129] Data abort info: > [ 11.428397] EA = 0, S1PTW = 0 > [ 11.428416] FSC = 0x04: level 0 translation fault > [ 11.428427] Data abort info: > [ 11.428434] ISV = 0, ISS = 0x00000004 > [ 11.428442] CM = 0, WnR = 0 > [ 11.428451] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000854b8000 > [ 11.428464] [0000000029f63007] pgd=0000000000000000, p4d=0000000000000000 > [ 11.428494] Internal error: Oops: 96000004 [#1] PREEMPT SMP > [ 11.428503] Modules linked in: venus_enc venus_dec > videobuf2_dma_contig crct10dif_ce adv7511(+) cec qcom_wcnss_pil > snd_soc_msm8916_analog qcom_pon qcom_spmi_temp_alarm rtc_pm8xxx > qcom_spmi_vadc snd_soc_lpass_apq8016 qcom_vadc_common > snd_soc_msm8916_digital snd_soc_lpass_cpu snd_soc_apq8016_sbc > snd_soc_lpass_platform qcom_q6v5_mss snd_soc_qcom_common qcom_pil_info > msm qcom_camss qcom_q6v5 gpu_sched qcom_sysmon drm_dp_aux_bus > venus_core qcom_common videobuf2_dma_sg v4l2_mem2mem v4l2_fwnode > qcom_glink_smem v4l2_async videobuf2_memops qmi_helpers videobuf2_v4l2 > mdt_loader qnoc_msm8916 drm_display_helper videobuf2_common > i2c_qcom_cci qcom_rng qcom_stats icc_smd_rpm rfkill display_connector > drm_kms_helper drm socinfo rmtfs_mem qrtr fuse > [ 11.428683] CPU: 3 PID: 312 Comm: systemd-udevd Tainted: G W > 5.19.0-rc2-next-20220614 #1 > [ 11.428694] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) > [ 11.428699] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) > [ 11.428709] pc : sysfs_kf_seq_show+0x3c/0x130 > [ 11.428724] lr : kernfs_seq_show+0x38/0x44 > [ 11.428735] sp : ffff80000b7ebbf0 > [ 11.428739] x29: ffff80000b7ebbf0 x28: 0000000000000001 x27: 0000000000400cc0 > [ 11.428753] x26: 000000007ffff000 x25: ffff000005581290 x24: ffff000005581280 > [ 11.428767] x23: 0000000000000000 x22: ffff0000056dd520 x21: ffff000004413d00 > [ 11.428780] x20: 0000000029f62fff x19: ffff000005581258 x18: 0000000000000000 > [ 11.428793] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 > [ 11.428806] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 > [ 11.428819] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff8000084b0ca8 > [ 11.428832] x8 : 0000000000000000 x7 : 0000000000000200 x6 : 0000000000000000 > [ 11.428845] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff000004413d00 > [ 11.428857] x2 : ffff8000084b2e64 x1 : 0000000000000001 x0 : ffff000002368a00 > [ 11.428872] Call trace: > [ 11.428875] sysfs_kf_seq_show+0x3c/0x130 > [ 11.428884] kernfs_seq_show+0x38/0x44 > [ 11.428895] seq_read_iter+0x1c4/0x4c0 > [ 11.428905] kernfs_fop_read_iter+0x14c/0x1d0 > [ 11.428917] new_sync_read+0xdc/0x160 > [ 11.428927] vfs_read+0x19c/0x1e4 > [ 11.428937] ksys_read+0x74/0x100 > [ 11.428947] __arm64_sys_read+0x28/0x3c > [ 11.428956] invoke_syscall+0x50/0x120 > [ 11.428968] el0_svc_common.constprop.0+0x104/0x124 > [ 11.428980] do_el0_svc+0x3c/0xcc > [ 11.428990] el0_svc+0x38/0xc0 > [ 11.429003] el0t_64_sync_handler+0xbc/0x140 > [ 11.429013] el0t_64_sync+0x18c/0x190 > [ 11.429026] Code: f9400400 f9403016 f94016d4 b4000054 (f9400694) > [ 11.429034] ---[ end trace 0000000000000000 ]--- > [ 11.430509] EA = 0, S1PTW = 0 > [ 11.436545] SET = 0, FnV = 0 > [ 11.443175] Unable to handle kernel paging request at virtual > address 0000000029f63007 > [ 11.445643] EA = 0, S1PTW = 0 > [ 11.452829] Mem abort info: > [ 11.455190] FSC = 0x04: level 0 translation fault > [ 11.458711] ISV = 0, ISS = 0x00000004 > [ 11.458728] CM = 0, WnR = 0 > [ 11.458738] user pgtable: 4k pages, 48-bit VAs, pgdp=000000008223b000 > [ 11.458751] [0000000000000009] pgd=0000000000000000, p4d=0000000000000000 > [ 11.458780] Internal error: Oops: 96000004 [#2] PREEMPT SMP > [ 11.458790] Modules linked in: pm8916_wdt(+) venus_enc venus_dec > videobuf2_dma_contig crct10dif_ce adv7511(+) cec qcom_wcnss_pil > snd_soc_msm8916_analog qcom_pon qcom_spmi_temp_alarm rtc_pm8xxx > qcom_spmi_vadc snd_soc_lpass_apq8016 qcom_vadc_common > snd_soc_msm8916_digital snd_soc_lpass_cpu snd_soc_apq8016_sbc > snd_soc_lpass_platform qcom_q6v5_mss snd_soc_qcom_common qcom_pil_info > msm qcom_camss qcom_q6v5 gpu_sched qcom_sysmon drm_dp_aux_bus > venus_core qcom_common videobuf2_dma_sg v4l2_mem2mem v4l2_fwnode > qcom_glink_smem v4l2_async videobuf2_memops qmi_helpers videobuf2_v4l2 > mdt_loader qnoc_msm8916 drm_display_helper videobuf2_common > i2c_qcom_cci qcom_rng qcom_stats icc_smd_rpm rfkill display_connector > drm_kms_helper drm socinfo rmtfs_mem qrtr fuse > [ 11.458973] CPU: 1 PID: 314 Comm: systemd-udevd Tainted: G D W > 5.19.0-rc2-next-20220614 #1 > [ 11.458982] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) > [ 11.458987] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) > [ 11.458996] pc : sysfs_kf_seq_show+0x3c/0x130 > [ 11.459011] lr : kernfs_seq_show+0x38/0x44 > > > metadata: > git_ref: master > git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next > git_sha: 35d872b9ea5b3ad784d7479ea728dcb688df2db7 > git_describe: next-20220614 > kernel_version: 5.19.0-rc2 > kernel-config: https://builds.tuxbuild.com/2AYbNeAYdcbtKeaEoYNvOAwsMQf/config > build-url: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next/-/pipelines/563047963 > artifact-location: https://builds.tuxbuild.com/2AYbNeAYdcbtKeaEoYNvOAwsMQf > System.map: https://builds.tuxbuild.com/2AYbNeAYdcbtKeaEoYNvOAwsMQf/System.map > vmlinux: https://builds.tuxbuild.com/2AYbNeAYdcbtKeaEoYNvOAwsMQf/vmlinux.xz > toolchain: gcc-11 > > > > [1] > https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20220614/testrun/10156029/suite/ltp-syscalls-tests/test/bpf_prog04/details/ > > > -- > Linaro LKFT > https://lkft.linaro.org > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel