Message-ID: <202407091342.46d7dbb-oliver.sang@intel.com>
Date: Tue, 9 Jul 2024 14:43:29 +0800
From: kernel test robot <oliver.sang@...el.com>
To: Borislav Petkov <bp@...en8.de>
CC: <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-kernel@...r.kernel.org>,
	<x86@...nel.org>, Nikunj A Dadhania <nikunj@....com>, Ashish Kalra
	<ashish.kalra@....com>, <oliver.sang@...el.com>
Subject: [tip:x86/sev] [x86/sev]  06685975c2:
 BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#)



Hello,

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

commit: 06685975c2090e180851a0ff175c140188b6b54a ("x86/sev: Move SEV compilation units")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git x86/sev

[test failed on linux-next/master 0b58e108042b0ed28a71cd7edf5175999955b233]

in testcase: boot

compiler: gcc-13
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G

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


we don't have idea how this commit could cause early boot issue, so we rebuild
kernel for both this commit and its parent with the config in [1], then rerun
the tests, the issue is still persistent while keeping clean on parent.

3991b04d4870fd33 06685975c2090e180851a0ff175
---------------- ---------------------------
       fail:runs  %reproduction    fail:runs
           |             |             |
           :200         25%          50:50    dmesg.BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#)

since the config in [1] is a random config, we also try another x86_64 config
which we use for various functional tests, still can reproduce the issue.

we also try two i386 configs, but not reproduce the issue. FYI


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@...el.com>
| Closes: https://lore.kernel.org/oe-lkp/202407091342.46d7dbb-oliver.sang@intel.com



Decompressing Linux... No EFI environment detected.
Parsing ELF... done.
Booting the kernel (entry_offset: 0x0000000000000ffa).
convert early boot stage from reboot-without-warning to failed
BUG: kernel failed in early-boot stage, last printk: Booting the kernel (entry_offset: 0x0000000000000ffa).
Linux version 6.10.0-rc2-00015-g06685975c209 #1
Command line: ip=::::vm-meta-70::dhcp root=/dev/ram0 RESULT_ROOT=/result/boot/1/vm-snb/debian-12-x86_64-20240206.cgz/x86_64-randconfig-r016-20230701/gcc-13/06685975c2090e180851a0ff175c140188b6b54a/21 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-r016-20230701/gcc-13/06685975c2090e180851a0ff175c140188b6b54a/vmlinuz-6.10.0-rc2-00015-g06685975c209 branch=tip/x86/sev job=/lkp/jobs/scheduled/vm-meta-70/boot-1-debian-12-x86_64-20240206.cgz-x86_64-randconfig-r016-20230701-06685975c209-20240708-45480-br2l55-20.yaml user=lkp ARCH=x86_64 kconfig=x86_64-randconfig-r016-20230701 commit=06685975c2090e180851a0ff175c140188b6b54a nmi_watchdog=0 intremap=posted_msi vmalloc=256M initramfs_async=0 page_owner=on carrier_timeout=60 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-worker32
Elapsed time: 60


[1]
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240709/202407091342.46d7dbb-oliver.sang@intel.com



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

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