linux-kernel - Re: [v2 6/6] mm: hugetlb: Skip initialization of struct pages freed later by HVO

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 31 Jul 2023 14:46:15 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Usama Arif <usama.arif@...edance.com>
CC:     <oe-lkp@...ts.linux.dev>, <lkp@...el.com>, <linux-mm@...ck.org>,
        <muchun.song@...ux.dev>, <mike.kravetz@...cle.com>,
        <rppt@...nel.org>, <linux-kernel@...r.kernel.org>,
        <fam.zheng@...edance.com>, <liangma@...ngbit.com>,
        <simon.evans@...edance.com>, <punit.agrawal@...edance.com>,
        Usama Arif <usama.arif@...edance.com>, <oliver.sang@...el.com>
Subject: Re: [v2 6/6] mm: hugetlb: Skip initialization of struct pages freed
 later by HVO

Hello,

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

commit: 336e2de6db9bad4d9a2d2f6bc8eb1d8beb8312f6 ("[v2 6/6] mm: hugetlb: Skip initialization of struct pages freed later by HVO")
url: https://github.com/intel-lab-lkp/linux/commits/Usama-Arif/mm-hugetlb-Skip-prep-of-tail-pages-when-HVO-is-enabled/20230730-231750
base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/all/20230730151606.2871391-7-usama.arif@bytedance.com/
patch subject: [v2 6/6] mm: hugetlb: Skip initialization of struct pages freed later by HVO

in testcase: boot

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

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

+--------------------------------------------------------------------------------------+------------+------------+
|                                                                                      | 83e1b781c0 | 336e2de6db |
+--------------------------------------------------------------------------------------+------------+------------+
| boot_successes                                                                       | 18         | 0          |
| BUG:kernel_failed_in_early-boot_stage,last_printk:Booting_the_kernel(entry_offset:#) | 0          | 18         |
+--------------------------------------------------------------------------------------+------------+------------+

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/202307311425.245f8e17-oliver.sang@intel.com

trampoline_32bit: 0x000000000009d000

Decompressing Linux... Parsing ELF... done.
Booting the kernel (entry_offset: 0x0000000000000000).
convert early boot stage from reboot-without-warning to failed
BUG: kernel failed in early-boot stage, last printk: Booting the kernel (entry_offset: 0x0000000000000000).
Linux version 6.5.0-rc3-00386-g336e2de6db9b #9
Command line: ip=::::vm-meta-191::dhcp root=/dev/ram0 RESULT_ROOT=/result/boot/1/vm-snb/yocto-x86_64-minimal-20190520.cgz/x86_64-randconfig-x014-20230730/clang-16/336e2de6db9bad4d9a2d2f6bc8eb1d8beb8312f6/5 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-x014-20230730/clang-16/336e2de6db9bad4d9a2d2f6bc8eb1d8beb8312f6/vmlinuz-6.5.0-rc3-00386-g336e2de6db9b branch=linux-review/Usama-Arif/mm-hugetlb-Skip-prep-of-tail-pages-when-HVO-is-enabled/20230730-231750 job=/lkp/jobs/scheduled/vm-meta-191/boot-1-yocto-x86_64-minimal-20190520.cgz-x86_64-randconfig-x014-20230730-336e2de6db9b-20230731-8942-51bxa7-4.yaml user=lkp ARCH=x86_64 kconfig=x86_64-randconfig-x014-20230730 commit=336e2de6db9bad4d9a2d2f6bc8eb1d8beb8312f6 nmi_watchdog=0 vmalloc=256M initramfs_async=0 page_owner=on 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 watchdog_thresh=240

Kboot worker: lkp-worker27
Elapsed time: 60

To reproduce:

        # build kernel
	cd linux
	cp config-6.5.0-rc3-00386-g336e2de6db9b .config
	make HOSTCC=clang-16 CC=clang-16 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage modules
	make HOSTCC=clang-16 CC=clang-16 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.

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

View attachment "config-6.5.0-rc3-00386-g336e2de6db9b" of type "text/plain" (168180 bytes)

View attachment "job-script" of type "text/plain" (4997 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (1424 bytes)