Re: [PATCH v4] x86/boot: Don't return encryption mask from __startup_64()

[kernel test robot <oliver.sang@intel.com>]

Hello,

kernel test robot noticed "BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#)" on:

commit: ceefc6a6846712aaeee61b8dfa97d5c33313d063 ("[PATCH v4] x86/boot: Don't return encryption mask from __startup_64()")
url: https://github.com/intel-lab-lkp/linux/commits/Khalid-Ali/x86-boot-Don-t-return-encryption-mask-from-__startup_64/20250619-153838
base: https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git 6a7c3c2606105a41dde81002c0037420bc1ddf00
patch link: https://lore.kernel.org/all/20250619073652.719-1-khaliidcaliy@gmail.com/
patch subject: [PATCH v4] x86/boot: Don't return encryption mask from __startup_64()

in testcase: boot

config: x86_64-kexec
compiler: clang-20
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

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


+--------------------------------------------------------------------------------------+------------+------------+
|                                                                                      | 6a7c3c2606 | ceefc6a684 |
+--------------------------------------------------------------------------------------+------------+------------+
| boot_successes                                                                       | 6          | 0          |
| boot_failures                                                                        | 0          | 6          |
| BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#) | 0          | 6          |
+--------------------------------------------------------------------------------------+------------+------------+


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/202506251439.913b4c32-lkp@intel.com


trampoline_32bit: 0x0000000000000000

Decompressing Linux... Parsing ELF... done.
Booting the kernel (entry_offset: 0x0000000001161e30).
convert early boot stage from reboot-without-warning to failed
BUG: kernel failed in early-boot stage, last printk: Booting the kernel (entry_offset: 0x0000000001161e30).
Linux version 6.15.0-rc7-00359-gceefc6a68467 #1
Command line: ip=::::vm-meta-270::dhcp root=/dev/ram0 RESULT_ROOT=/result/boot/1/vm-snb/debian-11.1-i386-20220923.cgz/x86_64-kexec/clang-20/ceefc6a6846712aaeee61b8dfa97d5c33313d063/0 BOOT_IMAGE=/pkg/linux/x86_64-kexec/clang-20/ceefc6a6846712aaeee61b8dfa97d5c33313d063/vmlinuz-6.15.0-rc7-00359-gceefc6a68467 branch=linux-devel/devel-hourly-20250619-233935 job=/lkp/jobs/scheduled/vm-meta-270/boot-1-debian-11.1-i386-20220923.cgz-ceefc6a68467-20250621-121357-1bgjd25-0.yaml user=lkp ARCH=x86_64 kconfig=x86_64-kexec commit=ceefc6a6846712aaeee61b8dfa97d5c33313d063 intremap=posted_msi vmalloc=256M initramfs_async=0 page_owner=on carrier_timeout=60 rcupdate.rcu_self_test=0 max_uptime=600 LKP_SERVER=internal-lkp-server selinux=0 debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 net.ifnames=0 printk.devkmsg=on panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 drbd.minor_count=8 systemd.log_level=err ignore_loglevel console=tty0 earlyprintk=ttyS0,115200 console=ttyS0,115200 vga=normal rw rcuperf.shutdown=0 rcuscale.shutdown=0 refscale.shutdown=0 watchdog_thresh=240 audit=0 kunit.enable=0 ia32_emulation=on riscv_isa_fallback=1

Kboot worker: lkp-worker51
Elapsed time: 60


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20250625/202506251439.913b4c32-lkp@intel.com



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