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@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
