[linus:master] [tomoyo] c5e3cdbf2a: Kernel_panic-not_syncing:STOP

[linus:master] [tomoyo] c5e3cdbf2a: Kernel_panic-not_syncing:STOP

[kernel test robot]

Hello,

kernel test robot noticed "Kernel_panic-not_syncing:STOP" on:

commit: c5e3cdbf2afedef77b64229fd0aed693abf0a0c4 ("tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linus/master      bf9aa14fc523d2763fc9a10672a709224e8fcaf4]
[test failed on linux-next/master ac24e26aa08fe026804f678599f805eb13374a5d]

in testcase: boot

config: i386-randconfig-005-20241118
compiler: gcc-12
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

(please refer to attached dmesg/kmsg for entire log/backtrace)


+-------------------------------+-----------+------------+
|                               | v6.12-rc1 | c5e3cdbf2a |
+-------------------------------+-----------+------------+
| boot_successes                | 27        | 0          |
| boot_failures                 | 0         | 18         |
| Kernel_panic-not_syncing:STOP | 0         | 18         |
+-------------------------------+-----------+------------+


If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202411221744.1a298e1e-lkp@intel.com


[    4.932564][    T1] netfs: FS-Cache loaded
[    4.934326][    T1] TOMOYO: 2.6.0
[    4.935572][    T1] Profile 0 (used by '<kernel>') is not defined.
[    4.937654][    T1] Userland tools for TOMOYO 2.6 must be installed and policy must be initialized.
[    4.940603][    T1] Please see https://tomoyo.sourceforge.net/2.6/ for more information.
[    4.943192][    T1] Kernel panic - not syncing: STOP!
[    4.944582][    T1] CPU: 0 UID: 0 PID: 1 Comm: swapper Tainted: G                T  6.12.0-rc1-00001-gc5e3cdbf2afe #1
[    4.944582][    T1] Tainted: [T]=RANDSTRUCT
[    4.944582][    T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[    4.944582][    T1] Call Trace:
[ 4.944582][ T1] dump_stack_lvl (kbuild/src/consumer/lib/dump_stack.c:124) 
[ 4.944582][ T1] dump_stack (kbuild/src/consumer/lib/dump_stack.c:130) 
[ 4.944582][ T1] panic (kbuild/src/consumer/kernel/panic.c:354) 
[ 4.944582][ T1] tomoyo_check_profile (kbuild/src/consumer/security/tomoyo/common.c:2785 (discriminator 1)) 
[ 4.944582][ T1] ? lock_release (kbuild/src/consumer/kernel/locking/lockdep.c:467 kbuild/src/consumer/kernel/locking/lockdep.c:5848) 


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241122/202411221744.1a298e1e-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [linus:master] [tomoyo] c5e3cdbf2a: Kernel_panic-not_syncing:STOP

[Tetsuo Handa]

That commit is not bad.

Kernel config says

  CONFIG_SECURITY_TOMOYO_OMIT_USERSPACE_LOADER=y
  # CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING is not set

which is a combination that cannot boot without doing one of choices listed below.

  Change CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING to y.

  Change CONFIG_SECURITY_TOMOYO_OMIT_USERSPACE_LOADER to n and
  install tomoyo-tools package and initialize on-disk policy.

  Modify built-in policy to include a complete set of on-disk policy.

On 2024/11/22 19:11, kernel test robot wrote:
> config: i386-randconfig-005-20241118

Please correct kernel config if random config selection hit this combination.

Re: [linus:master] [tomoyo] c5e3cdbf2a: Kernel_panic-not_syncing:STOP

[Philip Li]

On Fri, Nov 22, 2024 at 11:53:47PM +0900, Tetsuo Handa wrote:
> That commit is not bad.
> 
> Kernel config says
> 
>   CONFIG_SECURITY_TOMOYO_OMIT_USERSPACE_LOADER=y
>   # CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING is not set
> 
> which is a combination that cannot boot without doing one of choices listed below.
> 
>   Change CONFIG_SECURITY_TOMOYO_INSECURE_BUILTIN_SETTING to y.
> 
>   Change CONFIG_SECURITY_TOMOYO_OMIT_USERSPACE_LOADER to n and
>   install tomoyo-tools package and initialize on-disk policy.
> 
>   Modify built-in policy to include a complete set of on-disk policy.
> 
> On 2024/11/22 19:11, kernel test robot wrote:
> > config: i386-randconfig-005-20241118
> 
> Please correct kernel config if random config selection hit this combination.

Got it, thanks a lot for the info, the bot side will correct the config to avoid
false report.

> 
>