next-20230321: arm64: Unable to handle kernel paging request at virtual address

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The following kernel crash was noticed on arm64 Juno-r2 and Raspberry Pi 4
Model B on Linux next-20230321.

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

log:
----
[    3.071500] Unable to handle kernel paging request at virtual
address 0000000000001000
[    3.079432] Mem abort info:
[    3.082225]   ESR = 0x0000000096000004
[    3.085977]   EC = 0x25: DABT (current EL), IL = 32 bits
[    3.091295]   SET = 0, FnV = 0
[    3.094350]   EA = 0, S1PTW = 0
[    3.097491]   FSC = 0x04: level 0 translation fault
[    3.102373] Data abort info:
[    3.105252]   ISV = 0, ISS = 0x00000004
[    3.109089]   CM = 0, WnR = 0
[    3.112055] [0000000000001000] user address but active_mm is swapper
[    3.114230] usb 1-1: new high-speed USB device number 2 using ehci-platform
[    3.118418] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
[    3.118426] Modules linked in:
[    3.134717] CPU: 1 PID: 1 Comm: swapper/0 Not tainted
6.3.0-rc3-next-20230321 #1
[    3.142126] Hardware name: ARM Juno development board (r2) (DT)
[    3.148052] pstate: 000000c5 (nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    3.155027] pc : string (lib/vsprintf.c:644 lib/vsprintf.c:726)
[    3.158443] lr : vsnprintf (lib/vsprintf.c:2817)
[    3.162196] sp : ffff80000b34b8f0
[    3.165511] x29: ffff80000b34b8f0 x28: ffff800009d7b1ca x27: ffff80000b34bab0
[    3.172666] x26: ffff800009d7b1ca x25: 0000000000000020 x24: 0000000000000008
[    3.179820] x23: 00000000ffffffd8 x22: ffff8000099858a0 x21: ffff80000b34bc30
[    3.186973] x20: ffff80000b34ba90 x19: ffff80000b34ba98 x18: 000000003c98bfdd
[    3.194127] x17: 000000000000001c x16: 00000000eec48da2 x15: 00000000a9dbdd17
[    3.201280] x14: ffff80000b0242e8 x13: 0000000057a049ef x12: 00000000cfa47237
[    3.208433] x11: 0000000000000001 x10: 00000000bd5b8780 x9 : ffff80000812cbec
[    3.215586] x8 : 00000000ffffffff x7 : 0000000000000002 x6 : ffff80000b34ba98
[    3.222739] x5 : ffffffffffffffff x4 : 0000000000000000 x3 : ffff0a00ffffff04
[    3.229891] x2 : 0000000000001000 x1 : 0000000000000000 x0 : ffff80000b34bab0
[    3.237044] Call trace:
[    3.239489] string (lib/vsprintf.c:644 lib/vsprintf.c:726)
[    3.242551] vsnprintf (lib/vsprintf.c:2817)
[    3.245954] vprintk_store (kernel/printk/printk.c:2200)
[    3.249712] vprintk_emit (kernel/printk/printk.c:2297)
[    3.253381] vprintk_default (kernel/printk/printk.c:2328)
[    3.257137] vprintk (kernel/printk/printk_safe.c:50)
[    3.260198] _printk (kernel/printk/printk.c:2341)
[    3.263257] sysctl_err (fs/proc/proc_sysctl.c:1109)
[    3.266577] __register_sysctl_table (fs/proc/proc_sysctl.c:1140
fs/proc/proc_sysctl.c:1383)
[    3.271202] __register_sysctl_init (fs/proc/proc_sysctl.c:1462)
[    3.275569] memory_failure_sysctl_init (mm/memory-failure.c:152)
[    3.280281] do_one_initcall (init/main.c:1306)
[    3.280453] hub 1-1:1.0: USB hub found
[    3.284123] kernel_init_freeable (init/main.c:1378 init/main.c:1395
init/main.c:1414 init/main.c:1634)
[    3.284133] kernel_init (init/main.c:1526)
[    3.288246] hub 1-1:1.0: 4 ports detected
[    3.292239] ret_from_fork (arch/arm64/kernel/entry.S:871)
[ 3.292250] Code: 91000400 110004e1 eb08009f 540000c0 (38646845)
All code
========
   0:* 00 04 00              add    %al,(%rax,%rax,1) <-- trapping instruction
   3: 91                    xchg   %eax,%ecx
   4: e1 04                loope  0xa
   6: 00 11                add    %dl,(%rcx)
   8: 9f                    lahf
   9: 00 08                add    %cl,(%rax)
   b: eb c0                jmp    0xffffffffffffffcd
   d: 00 00                add    %al,(%rax)
   f: 54                    push   %rsp
  10: 45                    rex.RB
  11: 68                    .byte 0x68
  12: 64                    fs
  13: 38                    .byte 0x38

Code starting with the faulting instruction
===========================================
   0: 45                    rex.RB
   1: 68                    .byte 0x68
   2: 64                    fs
   3: 38                    .byte 0x38
[    3.309416] ---[ end trace 0000000000000000 ]---
[    3.314037] note: swapper/0[1] exited with irqs disabled
[    3.319392] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
[    3.327060] SMP: stopping secondary CPUs
[    3.331189] Kernel Offset: disabled
[    3.334678] CPU features: 0x400002,0c3c0400,0000421b
[    3.339649] Memory Limit: none
[    3.342708] ---[ end Kernel panic - not syncing: Attempted to kill
init! exitcode=0x0000000b ]---

links:
----
 - https://qa-reports.linaro.org/lkft/linux-next-master-sanity/build/next-20230321/testrun/15765295/suite/log-parser-test/tests/
 - https://qa-reports.linaro.org/lkft/linux-next-master-sanity/build/next-20230321/testrun/15765168/suite/log-parser-test/tests/
 - https://qa-reports.linaro.org/lkft/linux-next-master-sanity/build/next-20230321/testrun/15765168/suite/log-parser-test/test/check-kernel-panic/details/

metadata:
  git_ref: master
  git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
  git_sha: f3594f0204b756638267242e26d9de611435c3ba
  git_describe: next-20230321
  kernel_version: 6.3.0-rc3
  kernel-config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2NJ83YzjXEfP00u1LgnjMjjZfxo/config
  build-url: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next/-/pipelines/812627412/
  artifact-location:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2NJ83YzjXEfP00u1LgnjMjjZfxo
  toolchain: gcc-11


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




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