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Message-ID: <bfced8c8-c64f-982e-8797-d48b5ec65291@arm.com>
Date: Wed, 6 Nov 2019 16:07:52 +0000
From: Robin Murphy <robin.murphy@....com>
To: Naresh Kamboju <naresh.kamboju@...aro.org>,
Russell King - ARM Linux <linux@...linux.org.uk>,
catalin.marinas@....com, will@...nel.org,
linux-arm-kernel@...ts.infradead.org
Cc: Stephen Rothwell <sfr@...b.auug.org.au>,
Arnd Bergmann <arnd@...db.de>,
open list <linux-kernel@...r.kernel.org>,
lkft-triage@...ts.linaro.org, Mark Brown <broonie@...nel.org>,
John Stultz <john.stultz@...aro.org>,
Linux-Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: Linux-next-20191106 : arm64: Internal error: Oops: 96000007
On 06/11/2019 15:56, Naresh Kamboju wrote:
> arm64 devices Juno-r2, hikey (Hi6220) and dragonboard (APQ 8016 SBC)
> boot failed while running linux next 20191106 kernel. But qemu_arm64
> boot pass.
>
> Crash log from dragonboard,
>
> [ 10.656527] Unable to handle kernel paging request at virtual
> address ffff800011b3ef68
> [ 10.656580] Mem abort info:
> [ 10.656587] ESR = 0x96000007
> [ 10.656594] EC = 0x25: DABT (current EL), IL = 32 bits
> [ 10.656600] SET = 0, FnV = 0
> [ 10.656605] EA = 0, S1PTW = 0
> [ 10.656610] Data abort info:
> [ 10.656616] ISV = 0, ISS = 0x00000007
> [ 10.656621] CM = 0, WnR = 0
> [ 10.656629] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000081980000
> [ 10.656635] [ffff800011b3ef68] pgd=00000000bfeff003,
> pud=00000000bfefe003, pmd=00000000bfefa003, pte=0000000000000000
> [ 10.656887] Internal error: Oops: 96000007 [#1] PREEMPT SMP
> [ 10.656894] Modules linked in: adv7511(+) cec msm(+) mdt_loader
> drm_kms_helper qcom_rng drm socinfo rmtfs_mem qrtr fuse
> [ 10.656928] CPU: 0 PID: 230 Comm: systemd-udevd Not tainted
> 5.4.0-rc6-next-20191106 #1
> [ 10.656933] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
> [ 10.656939] pstate: a0000085 (NzCv daIf -PAN -UAO)
> [ 10.656953] pc : __of_match_node.part.5+0x48/0x88
> [ 10.656960] lr : of_match_node+0x40/0x70
> [ 10.656964] sp : ffff8000132534d0
> [ 10.656968] x29: ffff8000132534d0 x28: ffff8000101d6260
> [ 10.656977] x27: ffff80001241a7a0 x26: ffff80001241a7a0
> [ 10.656985] x25: ffff80001241a860 x24: ffff80001241a6e8
> [ 10.656993] x23: 0000000000000000 x22: ffff00003fd08010
> [ 10.657001] x21: 0000000000000000 x20: 0000000000000000
> [ 10.657008] x19: ffff800011b3ef68 x18: ffffffffffffffff
> [ 10.657016] x17: 0000000000000000 x16: 0000000000000000
> [ 10.657024] x15: ffff8000121ffa48 x14: 4e3a666f3d534149
> [ 10.657032] x13: 0000000000000040 x12: 0000000000000028
> [ 10.657039] x11: 0000000000000001 x10: 0101010101010101
> [ 10.657047] x9 : ffff800012532c50 x8 : 0000000000000050
> [ 10.657055] x7 : ffff800010df1164 x6 : 0000000000000000
> [ 10.657063] x5 : 00000000a4fd7f12 x4 : ffff00003bd7cd18
> [ 10.657070] x3 : 0000000000000000 x2 : 0000000000000001
> [ 10.657078] x1 : ffff00003fd08010 x0 : ffff800010df1178
> [ 10.657086] Call trace:
> [ 10.657094] __of_match_node.part.5+0x48/0x88
FWIW this smells like a builtin driver had its of_device_id table marked
__init, leaving drv->of_match_table as a dangling pointer to freed
memory by this point.
Robin.
> [ 10.657099] of_match_node+0x40/0x70
> [ 10.657106] of_match_device+0x30/0x50
> [ 10.657115] platform_match+0x4c/0xe8
> [ 10.657122] __device_attach_driver+0x3c/0x120
> [ 10.657128] bus_for_each_drv+0x78/0xd8
> [ 10.657135] __device_attach+0xe8/0x170
> [ 10.657141] device_initial_probe+0x24/0x30
> [ 10.657148] bus_probe_device+0xa0/0xa8
> [ 10.657154] device_add+0x4fc/0x7a8
> [ 10.657160] of_device_add+0x50/0x68
> [ 10.657167] of_platform_device_create_pdata+0xf0/0x170
> [ 10.657173] of_platform_bus_create+0x174/0x550
> [ 10.657180] of_platform_populate+0x94/0x158
> [ 10.657358] msm_pdev_probe+0x74/0x358 [msm]
> [ 10.657369] platform_drv_probe+0x58/0xa8
> [ 10.657377] really_probe+0x290/0x488
> [ 10.657384] driver_probe_device+0x12c/0x148
> [ 10.657391] device_driver_attach+0x74/0x98
> [ 10.657397] __driver_attach+0xc4/0x178
> [ 10.657403] bus_for_each_dev+0x84/0xd8
> [ 10.657409] driver_attach+0x30/0x40
> [ 10.657416] bus_add_driver+0x170/0x258
> [ 10.657423] driver_register+0x64/0x118
> [ 10.657430] __platform_driver_register+0x54/0x60
> [ 10.657582] msm_drm_register+0x60/0x6c [msm]
> [ 10.657592] do_one_initcall+0x94/0x460
> [ 10.657600] do_init_module+0x60/0x204
> [ 10.657606] load_module+0x2078/0x2720
> [ 10.657613] __do_sys_finit_module+0x100/0x120
> [ 10.657619] __arm64_sys_finit_module+0x28/0x38
> [ 10.657628] el0_svc_common.constprop.2+0x7c/0x180
> [ 10.657635] el0_svc_handler+0x34/0xa0
> [ 10.657643] el0_sync_handler+0x124/0x1f8
> [ 10.657649] el0_sync+0x140/0x180
> [ 10.657659] Code: 1a80d281 9a93d2b5 2a0103f4 91032273 (39400264)
> [ 10.657667] ---[ end trace 8b4c2740f71524d1 ]---
>
> Full test log,
> https://lkft.validation.linaro.org/scheduler/job/994051#L1396
>
> metadata:
> git branch: master
> git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> git commit: dcd34bd234181ec74f081c7d0025204afe6b213e
> git describe: next-20191106
> make_kernelversion: 5.4.0-rc6
> kernel-config:
> http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/dragonboard-410c/lkft/linux-next/640/config
> build-location:
> http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/dragonboard-410c/lkft/linux-next/640
>
>
> Best regards
> Naresh Kamoju
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
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