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Date: Mon, 26 Feb 2018 23:14:06 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: LKP <lkp@...org>, linux-pm@...r.kernel.org,
linux-efi@...r.kernel.org, kasan-dev@...glegroups.com,
linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...nel.org>,
wfg@...ux.intel.com
Subject: 91f606a8fa ("x86/mm: Replace compile-time checks for 5-level
.."): BUG: kernel reboot-without-warning in boot stage
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/mm
commit 91f606a8fa68264224cbc76888fa8649cdbe9990
Author: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
AuthorDate: Wed Feb 14 21:25:41 2018 +0300
Commit: Ingo Molnar <mingo@...nel.org>
CommitDate: Fri Feb 16 10:48:49 2018 +0100
x86/mm: Replace compile-time checks for 5-level paging with runtime-time checks
This patch converts the of CONFIG_X86_5LEVEL check to runtime checks for
p4d folding.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Arjan van de Ven <arjan@...ux.intel.com>
Cc: Borislav Petkov <bp@...e.de>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-mm@...ck.org
Link: http://lkml.kernel.org/r/20180214182542.69302-9-kirill.shutemov@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
98219dda2a x86/mm: Fold p4d page table layer at runtime
91f606a8fa x86/mm: Replace compile-time checks for 5-level paging with runtime-time checks
1ea4fe8497 Merge branch 'x86/boot' into x86/mm, to unify branches
94991480c2 Merge branch 'x86/pti'
f1753f6424 Add linux-next specific files for 20180226
+------------------------------------------------------------------+------------+------------+------------+------------+---------------+
| | 98219dda2a | 91f606a8fa | 1ea4fe8497 | 94991480c2 | next-20180226 |
+------------------------------------------------------------------+------------+------------+------------+------------+---------------+
| boot_successes | 7 | 0 | 0 | 0 | 0 |
| boot_failures | 5 | 13 | 17 | 13 | 25 |
| invoked_oom-killer:gfp_mask=0x | 4 | | | | |
| Mem-Info | 5 | | | | |
| Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 4 | | | | |
| BUG:kernel_reboot-without-warning_in_boot_stage | 0 | 13 | 17 | 13 | 25 |
+------------------------------------------------------------------+------------+------------+------------+------------+---------------+
output_len: 0x000000000566b910
kernel_total_size: 0x000000000670c000
Decompressing Linux... Parsing ELF... done.
Booting the kernel.
BUG: kernel reboot-without-warning in boot stage
Linux version 4.16.0-rc1-00031-g91f606a #1
Command line: root=/dev/ram0 hung_task_panic=1 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 link=/kbuild-tests/run-queue/yocto-kbuild/x86_64-randconfig-s3-02261607/linux-next:master:91f606a8fa68264224cbc76888fa8649cdbe9990:bisect-linux-22/.vmlinuz-91f606a8fa68264224cbc76888fa8649cdbe9990-20180226205630-1:yocto-kbuild-19 branch=linux-next/master BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s3-02261607/gcc-7/91f606a8fa68264224cbc76888fa8649cdbe9990/vmlinuz-4.16.0-rc1-00031-g91f606a drbd.minor_count=8 rcuperf.shutdown=0
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start f1753f6424875430d9f411c9a54c953e6465eb93 91ab883eb21325ad80f3473633f794c78ac87f51 --
git bisect good a6ceb636d19729dd1c1b15fbc12b04151c9b1c02 # 17:27 G 11 0 11 11 Merge remote-tracking branch 'nfs-anna/linux-next'
git bisect good cc6a7802eedbf39af3a04e6571050405c87d8171 # 17:49 G 11 0 8 8 Merge remote-tracking branch 'integrity/next-integrity'
git bisect bad b9ad93fa8cc49b00a91f858bc44bd4977733fa28 # 17:58 B 0 2 15 0 Merge remote-tracking branch 'phy-next/next'
git bisect bad 4a292cc22a47ced6fb77685dbb899d151e8b7e45 # 18:17 B 0 6 19 0 Merge remote-tracking branch 'edac-amd/for-next'
git bisect good 0f09e553fecff33502d87af0df252ff904883cbf # 18:36 G 10 0 7 7 Merge remote-tracking branch 'audit/next'
git bisect good 791aa391df0b31d4f5cf23be5d62e2359964fbb4 # 18:55 G 10 0 9 11 Merge remote-tracking branch 'spi/for-next'
git bisect bad 35ea8770bdbcf2b22a91a054f5eaed15ea2ad916 # 19:13 B 0 1 14 0 Merge remote-tracking branch 'tip/auto-latest'
git bisect good b73d26d3ff70dcfa7723c69b9ab9069952beb5ca # 19:38 G 11 0 10 12 Merge branch 'sched/core'
git bisect bad 230bd3e3d1dcc0f7c01cde1c4027e1eb32077514 # 19:46 B 0 2 15 0 Merge branch 'x86/mm'
git bisect bad 39b9552281abfcdfc54162897018890dafe7ffef # 20:03 B 0 1 14 0 x86/mm: Optimize boot-time paging mode switching cost
git bisect good 162434e7f58b21f0b6c9cc5fb02222cd7d9064cc # 20:27 G 10 0 6 6 x86/mm: Make MAX_PHYSADDR_BITS and MAX_PHYSMEM_BITS dynamic
git bisect good 9b46a051e43461a9afda2bdd50e0e0ae349341df # 20:47 G 11 0 5 7 x86/mm: Initialize vmemmap_base at boot-time
git bisect bad 91f606a8fa68264224cbc76888fa8649cdbe9990 # 20:57 B 0 4 17 0 x86/mm: Replace compile-time checks for 5-level paging with runtime-time checks
git bisect good 98219dda2ab56ce2a967fdebf81e838d676d9ddc # 21:20 G 10 0 9 11 x86/mm: Fold p4d page table layer at runtime
# first bad commit: [91f606a8fa68264224cbc76888fa8649cdbe9990] x86/mm: Replace compile-time checks for 5-level paging with runtime-time checks
git bisect good 98219dda2ab56ce2a967fdebf81e838d676d9ddc # 21:46 G 31 0 24 37 x86/mm: Fold p4d page table layer at runtime
# extra tests with debug options
git bisect bad 91f606a8fa68264224cbc76888fa8649cdbe9990 # 21:55 B 0 9 22 0 x86/mm: Replace compile-time checks for 5-level paging with runtime-time checks
# extra tests on HEAD of linux-next/master
git bisect bad f1753f6424875430d9f411c9a54c953e6465eb93 # 21:56 B 0 25 41 0 Add linux-next specific files for 20180226
# extra tests on tree/branch tip/x86/mm
git bisect bad 1ea4fe84973854a7302e4d1c479f10ae25a93e4a # 22:08 B 0 2 15 0 Merge branch 'x86/boot' into x86/mm, to unify branches
# extra tests with first bad commit reverted
git bisect good 9cb27f6ed298cb2fa24f814d8019781024abc06a # 22:53 G 11 0 6 6 Revert "x86/mm: Replace compile-time checks for 5-level paging with runtime-time checks"
# extra tests on tree/branch tip/master
git bisect bad 94991480c27894fbfc13c5d5867a6adec26022dc # 23:06 B 0 1 14 0 Merge branch 'x86/pti'
# extra tests on tree/branch linux-next/master
git bisect bad f1753f6424875430d9f411c9a54c953e6465eb93 # 23:12 B 0 25 41 0 Add linux-next specific files for 20180226
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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