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

[kernel test robot]

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 <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202603161449.201e2f5f-lkp@xxxxxxxxx



[    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/20260316/202603161449.201e2f5f-lkp@xxxxxxxxx



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