linux-kernel - [lkp-robot] [x86/boot/e820] 640e1b38b0: kmsg.Unknown_type(Reserved)while_parsing/sys/firmware/memmap/type.Please_report_this_as_bug.Using_RANGE_RESERVED

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Date:   Fri, 24 Mar 2017 10:14:43 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Alex Thorlton <athorlton@....com>,
        Andy Lutomirski <luto@...nel.org>,
        Borislav Petkov <bp@...en8.de>,
        Brian Gerst <brgerst@...il.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Denys Vlasenko <dvlasenk@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, Huang@...l-desktop,
        Ying <ying.huang@...el.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Juergen Gross <jgross@...e.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Paul Jackson <pj@....com>,
        Peter Zijlstra <peterz@...radead.org>,
        "Rafael J. Wysocki" <rjw@...k.pl>, Tejun Heo <tj@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Wei Yang <richard.weiyang@...il.com>,
        Yinghai Lu <yinghai@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>, tipbuild@...or.com, lkp@...org
Subject: [lkp-robot] [x86/boot/e820]  640e1b38b0:
 kmsg.Unknown_type(Reserved)while_parsing/sys/firmware/memmap/type.Please_report_this_as_bug.Using_RANGE_RESERVED_now

FYI, we noticed the following commit:

commit: 640e1b38b00550990cecd809021cd37716e45922 ("x86/boot/e820: Basic cleanup of e820.c")
https://git.kernel.org/cgit/linux/kernel/git/tip/tip.git WIP.x86/boot

with following parameters:

	nr_task: 100%
	samples: 100000ss
	iterations: 18x
	cpufreq_governor: performance

on test machine: 8 threads Intel(R) Atom(TM) CPU  C2750  @ 2.40GHz with 16G memory

caused below changes during kexec stage

[  187.525542] LKP: kexec loading...
[  187.525547] 
[  187.542515] kexec --noefi -l /tmp/cache/pkg/linux/x86_64-rhel-7.2/gcc-6/f0b8a7bcfcf0cd6a4aa9871b08e4f36c46ea7d2f/vmlinuz-4.11.0-rc3-01207-gf0b8a7b --initrd=/tmp/cache/initrd-concatenated
[  187.542520] 
[  189.726981] Unknown type (Reserved) while parsing /sys/firmware/memmap/7/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.726987] 
[  189.753306] Unknown type (Reserved) while parsing /sys/firmware/memmap/15/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.753312] 
[  189.779219] Unknown type (Reserved) while parsing /sys/firmware/memmap/13/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.779224] 
[  189.805327] Unknown type (Reserved) while parsing /sys/firmware/memmap/11/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.805333] 
[  189.831222] Unknown type (Reserved) while parsing /sys/firmware/memmap/1/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.831227] 
[  189.857037] Unknown type (Reserved) while parsing /sys/firmware/memmap/14/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.857042] 
[  189.882788] Unknown type (Reserved) while parsing /sys/firmware/memmap/4/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.882793] 
[  189.908418] Unknown type (Reserved) while parsing /sys/firmware/memmap/12/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.908423] 
[  189.934027] Unknown type (Reserved) while parsing /sys/firmware/memmap/2/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.934032] 
[  189.959487] Unknown type (Reserved) while parsing /sys/firmware/memmap/10/type. Please report this as bug. Using RANGE_RESERVED now.
[  189.959492] 
[  189.984880] Unknown type (Reserved) while parsing /sys/firmware/memmap/9/type. Please report this as bug. Using RANGE_RESERVED now.

To reproduce:

        git clone https://github.com/01org/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml

Thanks,
Xiaolong

View attachment "config-4.10.0-rc5-00391-g640e1b38" of type "text/plain" (156181 bytes)

View attachment "job-script" of type "text/plain" (4134 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (13100 bytes)

View attachment "fwq" of type "text/plain" (633 bytes)

View attachment "job.yaml" of type "text/plain" (3379 bytes)

View attachment "reproduce" of type "text/plain" (132 bytes)