linux-kernel - stable-rc: Fast model boot fail Internal error Oops BTI

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Message-ID: <CA+G9fYtucEt8Hp6RsV0o+OWSz1E=hXBvhHa-P9C-bPnb7cyGaQ@mail.gmail.com>
Date: Thu, 20 Mar 2025 16:05:14 +0530
From: Naresh Kamboju <naresh.kamboju@...aro.org>
To: open list <linux-kernel@...r.kernel.org>, 
	Linux ARM <linux-arm-kernel@...ts.infradead.org>, lkft-triage@...ts.linaro.org
Cc: Mark Rutland <mark.rutland@....com>, Catalin Marinas <catalin.marinas@....com>, 
	Mark Brown <broonie@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
	Dan Carpenter <dan.carpenter@...aro.org>, Anders Roxell <anders.roxell@...aro.org>, 
	Aishwarya TCV <Aishwarya.TCV@....com>
Subject: stable-rc: Fast model boot fail Internal error Oops BTI - kernfs_iop_permission

Regressions on arm64 Fast model (FVP-aemva) boot failed with stable-rc 6.13.

First seen on the stable-rc 6.13.8-rc1
 Good: v6.13.8
 Bad:  6.13.8-rc1 (v6.13.7-242-g14de9a7d510f)

Regressions found on FVP:
 - boot

Regression Analysis:
 - New regression? Yes
 - Reproducible? Yes

Boot regression: Fast model boot fail Internal error Oops BTI
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

NOTE:
  LKFT is currently running FVP Fast Models version 11.24.
  Planned upgrade to the Fast Models version 11.28 in this sprint.

## Boot log
[   12.812790] Internal error: Oops - BTI: 0000000036000002 [#1] PREEMPT SMP
[   12.812886] Modules linked in: drm fuse backlight ip_tables x_tables
[   12.813120] CPU: 6 UID: 0 PID: 136 Comm: udevadm Not tainted 6.13.8-rc1 #1
[   12.813245] Hardware name: FVP Base RevC (DT)
[   12.813317] pstate: 163402809 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=-c)
[   12.813450] pc : kernfs_iop_permission+0x4/0xe4
[   12.813585] lr : inode_permission+0xb8/0x174
[   12.813728] sp : ffff800080d63bb0
[   12.813796] x29: ffff800080d63bc0 x28: 0000000000002e2e x27: 00000000fffffff6
[   12.813978] x26: 0000000000000030 x25: 2f2f2f2f2f2f2f2f x24: 61c8864680b583eb
[   12.814161] x23: 0000000000000000 x22: fefefefefefefeff x21: ffffa991682c84b8
[   12.814344] x20: ffff0008006704d0 x19: 0000000000000001 x18: 00000000fffffffb
[   12.814525] x17: ffff000801bf8021 x16: e0acaabd2f000000 x15: ffffffffff000000
[   12.814711] x14: 0000000000000002 x13: ffffffffffffffff x12: 0000002e00000000
[   12.814893] x11: 0000002d00000000 x10: 0000002d00000000 x9 : ffff0008006704d0
[   12.815076] x8 : ffffa991665f0ff8 x7 : 0000000000000000 x6 : 0000000000000000
[   12.815253] x5 : 0000000000000000 x4 : 0000000000004050 x3 : 2f7375622f737973
[   12.815432] x2 : 0000000000000001 x1 : ffff0008006704d0 x0 : ffffa991682c84b8
[   12.815613] Call trace:
[   12.815670]  kernfs_iop_permission+0x4/0xe4 (P)
[   12.815830]  link_path_walk+0x2b8/0x388
[   12.815962]  path_lookupat+0x68/0x120
[   12.816073]  filename_lookup+0xe0/0x1e0
[   12.816196]  do_readlinkat+0x6c/0x1d8
[   12.816337]  __arm64_sys_readlinkat+0x20/0x30
[   12.816481]  invoke_syscall+0x40/0xf8
[   12.816623]  el0_svc_common+0xa8/0xd8
[   12.816765]  do_el0_svc+0x1c/0x28
[   12.816904]  el0_svc+0x38/0x68
[   12.817050]  el0t_64_sync_handler+0x78/0x108
[   12.817203]  el0t_64_sync+0x198/0x19c
[   12.817359] Code: a8c27bfd d50323bf d65f03c0 d503245f (373806c2)
[   12.817444] ---[ end trace 0000000000000000 ]---


## Source
* Kernel version: 6.13.8-rc1
* Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* Git sha: 14de9a7d510fcfb3bd35e275eda09724bda4d440
* Git describe: v6.13.7-242-g14de9a7d510f
* Project details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.13.y/build/v6.13.7-242-g14de9a7d510f/

## Build
* Build log: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.13.y/build/v6.13.7-242-g14de9a7d510f/testrun/27684866/suite/boot/test/clang-20-lkftconfig-no-kselftest-frag/log
* Build history:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.13.y/build/v6.13.7-242-g14de9a7d510f/testrun/27684866/suite/boot/test/clang-20-lkftconfig-no-kselftest-frag/history/
* Build details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.13.y/build/v6.13.7-242-g14de9a7d510f/testrun/27684866/suite/boot/test/clang-20-lkftconfig-no-kselftest-frag/
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2uXZoz8Lc7Ue3i4mVWAM8Y800oz/
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2uXZoz8Lc7Ue3i4mVWAM8Y800oz/config


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