linux-kernel - [x86/mm/64] f154f29085: BUG:kernel_reboot-without-warning_in_boot

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Message-ID: <20211209144141.GC25654@xsang-OptiPlex-9020>
Date:   Thu, 9 Dec 2021 22:41:41 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Joerg Roedel <jroedel@...e.de>
Cc:     Borislav Petkov <bp@...e.de>, LKML <linux-kernel@...r.kernel.org>,
        x86@...nel.org, lkp@...ts.01.org, lkp@...el.com
Subject: [x86/mm/64]  f154f29085:
 BUG:kernel_reboot-without-warning_in_boot_stage

Greeting,

FYI, we noticed the following commit (built with clang-14):

commit: f154f290855b070cc94dd44ad253c0ef8a9337bb ("x86/mm/64: Flush global TLB on boot and AP bringup")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git x86/mm

in testcase: boot

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

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

+-------------------------------------------------+------------+------------+
|                                                 | 9de4999050 | f154f29085 |
+-------------------------------------------------+------------+------------+
| BUG:kernel_reboot-without-warning_in_boot_stage | 0          | 13         |
+-------------------------------------------------+------------+------------+

If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>

Physical KASLR using RDTSC...
Virtual KASLR using RDTSC...

Decompressing Linux... Parsing ELF... Performing relocations... done.
Booting the kernel.
BUG: kernel reboot-without-warning in boot stage
Linux version 5.16.0-rc3-00003-gf154f290855b #1
Command line: ip=::::vm-snb-192::dhcp root=/dev/ram0 user=lkp job=/lkp/jobs/scheduled/vm-snb-192/boot-1-debian-10.4-x86_64-20200603.cgz-f154f290855b070cc94dd44ad253c0ef8a9337bb-20211208-23538-lnvkeg-5.yaml ARCH=x86_64 kconfig=x86_64-randconfig-a013-20211207 branch=tip/x86/mm commit=f154f290855b070cc94dd44ad253c0ef8a9337bb BOOT_IMAGE=/pkg/linux/x86_64-randconfig-a013-20211207/clang-14/f154f290855b070cc94dd44ad253c0ef8a9337bb/vmlinuz-5.16.0-rc3-00003-gf154f290855b vmalloc=128M initramfs_async=0 page_owner=on max_uptime=600 RESULT_ROOT=/result/boot/1/vm-snb/debian-10.4-x86_64-20200603.cgz/x86_64-randconfig-a013-20211207/clang-14/f154f290855b070cc94dd44ad253c0ef8a9337bb/3 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 watchdog_thresh=240

Kboot worker: lkp-worker30
Elapsed time: 60

To reproduce:

        # build kernel
	cd linux
	cp config-5.16.0-rc3-00003-gf154f290855b .config
	make HOSTCC=clang-14 CC=clang-14 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=clang-14 CC=clang-14 ARCH=x86_64 INSTALL_MOD_PATH=<mod-install-dir> modules_install
	cd <mod-install-dir>
	find lib/ | cpio -o -H newc --quiet | gzip > modules.cgz

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> -m modules.cgz job-script # job-script is attached in this email

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.

---
0DAY/LKP+ Test Infrastructure                   Open Source Technology Center
https://lists.01.org/hyperkitty/list/lkp@lists.01.org       Intel Corporation

Thanks,
Oliver Sang

View attachment "config-5.16.0-rc3-00003-gf154f290855b" of type "text/plain" (133066 bytes)

View attachment "job-script" of type "text/plain" (4940 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (1348 bytes)