[linux-next:master] [clone] 4a34da4356: BUG:kernel_hang_in_boot_stage

Hello,


we don't have enough knowledge to analyze the connection, but after rebuilding
kernel and rerun tests up to 100 times, the parent keeps clean, 4a34da4356
shows consistent boot issues.

=========================================================================================
tbox_group/testcase/rootfs/kconfig/compiler/sleep:
  vm-snb-i386/boot/yocto-i386-minimal-20190520.cgz/i386-randconfig-2006-20250804/gcc-14/1

ec93d3ee27d535ec 4a34da43569a1e0f7268e7dbd43
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :100        100%         100:100   last_state.booting
           :100         97%          97:100   dmesg.BUG:kernel_hang_in_boot_stage
           :100          3%           3:100   dmesg.BUG:workqueue_lockup-pool
           :100        100%         100:100   dmesg.boot_failures

unfortunately, there is less information in dmesg. below report is just FTI.


kernel test robot noticed "BUG:kernel_hang_in_boot_stage" on:

commit: 4a34da43569a1e0f7268e7dbd435ad1eab5ff1b9 ("clone: add CLONE_NNP")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master f90aadf1c67c8b4969d1e5e6d4fd7227adb6e4d7]

in testcase: boot

config: i386-randconfig-2006-20250804
compiler: gcc-14
test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

(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]



[    0.289043][    T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'
[    0.290216][    T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers'
[    0.291271][    T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers'
[    0.292235][    T0] x86/fpu: xstate_offset[2]:  576, xstate_sizes[2]:  256
[    0.293181][    T0] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.
BUG: kernel hang in boot stage



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260316/[email protected]



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