linux-kernel - Re: [lkp-developer] [ACPICA] 174cc7187e: kmsg.ACPI_Error:Mutex[ACPI_MTX_Tables]already_acquired_by_this

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Date:   Thu, 12 Jan 2017 14:00:24 +0800
From:   Ye Xiaolong <xiaolong.ye@...el.com>
To:     "Zheng, Lv" <lv.zheng@...el.com>
Cc:     "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
        "Moore, Robert" <robert.moore@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "lkp@...org" <lkp@...org>
Subject: Re: [lkp-developer] [ACPICA]  174cc7187e:
 kmsg.ACPI_Error:Mutex[ACPI_MTX_Tables]already_acquired_by_this_thread[#](#/utmutex-#)

Hi, Lv

On 01/12, Zheng, Lv wrote:
>Hi, Xiaolong
>
>I noticed the tested version in your the test dmesg: Linux version 4.9.0-rc5
>While the commit bisected should be in v4.10-rc1.
>Does that mean your test tree doesn't contain some basic lock fixes?

The reported kernel version is Linux version 4.9.0-rc5-00017-g174cc71 which means
commit 174cc7187e is the head commit to be built.

Thanks,
Xiaolong

>
>Thanks and best regards
>Lv
>
>> From: lkp-developer-request@...ists.intel.com [mailto:lkp-developer-request@...ists.intel.com] On
>> Behalf Of Ye, Xiaolong
>> Subject: [lkp-developer] [ACPICA] 174cc7187e:
>> kmsg.ACPI_Error:Mutex[ACPI_MTX_Tables]already_acquired_by_this_thread[#](#/utmutex-#)
>> 
>> 
>> FYI, we noticed the following commit:
>> 
>> commit: 174cc7187e6f088942c8e74daa7baff7b44b33c9 ("ACPICA: Tables: Back port acpi_get_table_with_size()
>> and early_acpi_os_unmap_memory() from Linux kernel")
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> 
>> in testcase: phoronix-test-suite
>> with following parameters:
>> 
>> 	need_x: true
>> 	test: jxrendermark-1.2.0
>> 	cpufreq_governor: performance
>> 
>> test-description: The Phoronix Test Suite is the most comprehensive testing and benchmarking platform
>> available that provides an extensible framework for which new tests can be easily added.
>> test-url: http://www.phoronix-test-suite.com/
>> 
>> 
>> on test machine: 16 threads Nehalem-EP with 16G memory
>> 
>> caused below changes:
>> 
>> 
>> [    2.043693] ACPI Error: Mutex [ACPI_MTX_Tables] already acquired by this thread [497483776]
>> (20160930/utmutex-254)
>> [    2.054084] ACPI Error: Mutex [0x2] is not acquired, cannot release (20160930/utmutex-326)
>> 
>> To reproduce:
>> 
>>         git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/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