[next] arm: boot failed - PC is at cpu_ca15_set_pte_ext

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Linux next 20220419 boot failed on arm architecture qemu_arm and BeagleBoard
x15 device.

kernel crash log from x15:
-----------------
[    6.866516] 8<--- cut here ---
[    6.869598] Unable to handle kernel paging request at virtual
address f000e62c
[    6.876861] [f000e62c] *pgd=82935811, *pte=00000000, *ppte=00000000
[    6.883209] Internal error: Oops: 807 [#3] SMP ARM
[    6.888000] Modules linked in:
[    6.891082] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G      D W
  5.18.0-rc3-next-20220419 #1
[    6.899993] Hardware name: Generic DRA74X (Flattened Device Tree)
[    6.906127] PC is at cpu_ca15_set_pte_ext+0x4c/0x58
[    6.911041] LR is at handle_mm_fault+0x60c/0xed0
[    6.915679] pc : [<c031f26c>]    lr : [<c04cfeb8>]    psr: 40000013
[    6.921966] sp : f000dde8  ip : f000de44  fp : a0000013
[    6.927215] r10: 00000000  r9 : 00000000  r8 : c1e95194
[    6.932464] r7 : c3c95000  r6 : befffff1  r5 : 00000081  r4 : c29d8000
[    6.939025] r3 : 00000000  r2 : 00000000  r1 : 00000040  r0 : f000de2c
[    6.945587] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    6.952758] Control: 10c5387d  Table: 8020406a  DAC: 00000051
[    6.958526] Register r0 information: 2-page vmalloc region starting
at 0xf000c000 allocated at kernel_clone+0x94/0x3b0
[    6.969299] Register r1 information: non-paged memory
[    6.974365] Register r2 information: NULL pointer
[    6.979095] Register r3 information: NULL pointer
[    6.983825] Register r4 information: slab task_struct start
c29d8000 pointer offset 0
[    6.991729] Register r5 information: non-paged memory
[    6.996795] Register r6 information: non-paged memory
[    7.001861] Register r7 information: slab vm_area_struct start
c3c95000 pointer offset 0
[    7.010009] Register r8 information: non-slab/vmalloc memory
[    7.015716] Register r9 information: NULL pointer
[    7.020446] Register r10 information: NULL pointer
[    7.025238] Register r11 information: non-paged memory
[    7.030426] Register r12 information: 2-page vmalloc region
starting at 0xf000c000 allocated at kernel_clone+0x94/0x3b0
[    7.041259] Process swapper/0 (pid: 1, stack limit = 0xfaff0077)
[    7.047302] Stack: (0xf000dde8 to 0xf000e000)
[    7.051696] dde0:                   c29d8000 00000cc0 c20a1108
c2065fa0 c1e09f50 b6db6db7
[    7.059906] de00: c195bf0c 17c0f572 c29d8000 c3c95000 00000cc0
000befff befff000 befffff1
[    7.068115] de20: 00000081 c3c3afb8 c3c3afb8 00000000 00000000
00000000 00000000 00000000
[    7.076324] de40: 00000000 17c0f572 befff000 c3c95000 00002017
befffff1 00002017 00002fb8
[    7.084564] de60: c2d04000 00000081 c29d8000 c04c6790 c20d01d4
00000000 00000001 c20ce440
[    7.092773] de80: c1e10bcc fffff000 00000000 c2a45680 eeb33cc0
c29d8000 00000000 c2d04000
[    7.100982] dea0: befffff1 f000df18 00000000 00002017 c20661a0
c04c77e8 f000df18 00000000
[    7.109222] dec0: 00000000 c1d95c40 00000002 c20661e0 00000000
00000001 00000000 c04c7ad0
[    7.117431] dee0: 00000011 c2d02a00 00000001 befffff1 c29d8000
00000000 00000011 c2a30010
[    7.125640] df00: c29d8000 c0524c24 f000df18 00000000 00000000
2cd9e000 c1d95c40 17c0f572
[    7.133850] df20: 00000000 c2d02a00 0000000b 00000ffc 00000000
befffff1 00000000 c0524f74
[    7.142089] df40: c1e0e394 c2d02a00 c209a71c 38e38e39 c29d8000
bee00008 c2d02a00 c2a30000
[    7.150299] df60: c1e0e394 c1e0e420 00000000 00000000 00000000
c05266bc c209a000 c1944c60
[    7.158508] df80: 00000000 00000000 00000000 c129d2b4 c209a000
c1e0e394 00000000 c12b5600
[    7.166748] dfa0: 00000000 c12b5518 00000000 c0300168 00000000
00000000 00000000 00000000
[    7.174957] dfc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[    7.183166] dfe0: 00000000 00000000 00000000 00000000 00000013
00000000 00000000 00000000
[    7.191406] Code: 13110001 12211b02 13110b02 03a03000 (e5a03800)
[    7.197570] ---[ end trace 0000000000000000 ]---
[    7.202209] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b

Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

metadata:
  git_ref: master
  git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
  git_sha: 634de1db0e9bbeb90d7b01020e59ec3dab4d38a1
  git_describe: next-20220419
  kernel-config: https://builds.tuxbuild.com/280TXP6P7tIBfnowvFY4wobXp3R/config
  System.map:  https://builds.tuxbuild.com/280TXP6P7tIBfnowvFY4wobXp3R/System.map
  vmlinux.xz: https://builds.tuxbuild.com/280TXP6P7tIBfnowvFY4wobXp3R/vmlinux.xz
  build-url: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next/-/pipelines/519362851
  build: https://builds.tuxbuild.com/280TXP6P7tIBfnowvFY4wobXp3R
  toolchain: gcc-10

--
Linaro LKFT
https://lkft.linaro.org

[1] https://lkft.validation.linaro.org/scheduler/job/4921995#L2616
[2] https://lkft.validation.linaro.org/scheduler/job/4922061#L552



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