linux-kernel - [lkp-robot] [platform/x86] bff589be59: kmsg.dell_wmi:Cannot_read_Dell_descriptor

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Date:   Thu, 20 Jul 2017 09:02:20 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     Darren Hart <dvhart@...radead.org>,
        Andy Lutomirski <luto@...capital.net>,
        Mario Limonciello <mario_limonciello@...l.com>,
        Pali Rohár <pali.rohar@...il.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>, lkp@...org
Subject: [lkp-robot] [platform/x86]  bff589be59:
 kmsg.dell_wmi:Cannot_read_Dell_descriptor_buffer


FYI, we noticed the following commit:

commit: bff589be59c50924a9715951160578e570cba5c6 ("platform/x86: dell-wmi: Convert to the WMI bus infrastructure")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: boot

on test machine: qemu-system-x86_64 -enable-kvm -m 420M

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


[    7.102869] usbhid: USB HID core driver
[    7.104086] dell_wmi: Cannot read Dell descriptor buffer - 1
[    7.104088] acer_wmi: Acer Laptop ACPI-WMI Extras
[    7.104097] acer_wmi: No or unsupported WMI interface, unable to load



To reproduce:

        git clone https://github.com/01org/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong

View attachment "job-script" of type "text/plain" (3954 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (13700 bytes)