[linux-next:master] [serial] d353934702: BUG:kernel_reboot-without-warning_in_test_stage

Hello,

similar to
https://lore.kernel.org/all/[email protected]/
we still found we have kernel_reboot-without-warning_in_test_stage by this
change in our tests.

hard for us to understand the connection, and we cannot capture more useful
information from serail. just report FYI what we observed in our tests.


kernel test robot noticed "BUG:kernel_reboot-without-warning_in_test_stage" on:

commit: d3539347022ad4eeb9dbd29c50bfca17b9d8a146 ("serial: 8250: Switch to nbcon console, take 2")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: boot

config: i386-randconfig-2006-20250825
compiler: gcc-14
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 32G

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


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 <[email protected]>
| Closes: https://lore.kernel.org/oe-lkp/[email protected]



[   65.107802][  T272] INFO: lkp CACHE_DIR is /tmp/cache
[   65.107809][  T272]
BUG: kernel reboot-without-warning in test stage



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260806/[email protected]



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