2014-02-20 14:39:34

by Otto Meier

[permalink] [raw]
Subject: [3.14-rc3] possible regression Haswell runs only at 770Mhz with powersave governor

Hello,

My System which runs with older kernels up to 3.13.3
fine on my i3-4330 with 3.5 Ghz and governor powersave.
and pstate driver.

With kernel 3.14-rc3 and Governor powersave it runs
only at 770Mhz and never switches to higher Freq. on load.
Even compiling a kernel with make -j4 does not change freq.

With governor performance it switches to 3.5 Ghz and stays
there.

Any Idea how to fix this?

Best regards


2014-02-20 15:01:09

by Borislav Petkov

[permalink] [raw]
Subject: Re: [3.14-rc3] possible regression Haswell runs only at 770Mhz with powersave governor

Add lists to CC.

On Thu, Feb 20, 2014 at 03:32:36PM +0100, Otto Meier wrote:
> Hello,
>
> My System which runs with older kernels up to 3.13.3
> fine on my i3-4330 with 3.5 Ghz and governor powersave.
> and pstate driver.
>
> With kernel 3.14-rc3 and Governor powersave it runs
> only at 770Mhz and never switches to higher Freq. on load.
> Even compiling a kernel with make -j4 does not change freq.
>
> With governor performance it switches to 3.5 Ghz and stays
> there.
>
> Any Idea how to fix this?
>
> Best regards

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
--

2014-02-20 16:48:44

by Dirk Brandewie

[permalink] [raw]
Subject: Re: [3.14-rc3] possible regression Haswell runs only at 770Mhz with powersave governor

On 02/20/2014 07:01 AM, Borislav Petkov wrote:
> Add lists to CC.
>
> On Thu, Feb 20, 2014 at 03:32:36PM +0100, Otto Meier wrote:
>> Hello,
>>
>> My System which runs with older kernels up to 3.13.3
>> fine on my i3-4330 with 3.5 Ghz and governor powersave.
>> and pstate driver.
>>
>> With kernel 3.14-rc3 and Governor powersave it runs
>> only at 770Mhz and never switches to higher Freq. on load.
>> Even compiling a kernel with make -j4 does not change freq.
>>

commit fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 seems to be the culprit

>> With governor performance it switches to 3.5 Ghz and stays
>> there.
>>
>> Any Idea how to fix this?
>>

Greg KH is seeing the same thing on his Haswell system. I am trying
to figure what went south.

https://lkml.org/lkml/2014/2/19/626


Can you send me the .config for the broken kernel also the output of gcc -v



>> Best regards
>

2014-02-20 19:06:52

by Otto Meier

[permalink] [raw]
Subject: Re: [3.14-rc3] possible regression Haswell runs only at 770Mhz with powersave governor

Am 20.02.2014 17:48, schrieb Dirk Brandewie:
> On 02/20/2014 07:01 AM, Borislav Petkov wrote:
>> Add lists to CC.
>>
>> On Thu, Feb 20, 2014 at 03:32:36PM +0100, Otto Meier wrote:
>>> Hello,
>>>
>>> My System which runs with older kernels up to 3.13.3
>>> fine on my i3-4330 with 3.5 Ghz and governor powersave.
>>> and pstate driver.
>>>
>>> With kernel 3.14-rc3 and Governor powersave it runs
>>> only at 770Mhz and never switches to higher Freq. on load.
>>> Even compiling a kernel with make -j4 does not change freq.
>>>
>
> commit fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 seems to be the culprit
>
>>> With governor performance it switches to 3.5 Ghz and stays
>>> there.
>>>
>>> Any Idea how to fix this?
>>>
>
> Greg KH is seeing the same thing on his Haswell system. I am trying
> to figure what went south.
>
> https://lkml.org/lkml/2014/2/19/626
>
>
> Can you send me the .config for the broken kernel also the output of
> gcc -v
>
>
>
>>> Best regards
>>
>
>
>

Hello

I reverted the mentioned commit.

it now seams to work. But total idle power comsumption is aprox. 5 Watts
higher as
running kernel 3.13.3. Measured with a true rms powermeter on primery side.


gcc -v:

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/4.8/lto-wrapper
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada
--enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.8
--enable-ssp --disable-libssp --disable-plugin
--with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
--disable-libgcj --disable-libmudflap --with-slibdir=/lib64
--with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--enable-version-specific-runtime-libs --enable-linker-build-id
--program-suffix=-4.8 --enable-linux-futex --without-system-libunwind
--with-arch-32=i586 --with-tune=generic --build=x86_64-suse-linux
Thread model: posix
gcc version 4.8.1 20130909 [gcc-4_8-branch revision 202388] (SUSE Linux)

.config:

#
# Power management and ACPI options
#
CONFIG_ARCH_HIBERNATION_HEADER=y
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
CONFIG_HIBERNATE_CALLBACKS=y
CONFIG_HIBERNATION=y
CONFIG_PM_STD_PARTITION=""
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
CONFIG_PM_AUTOSLEEP=y
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_WAKELOCKS_LIMIT=100
CONFIG_PM_WAKELOCKS_GC=y
CONFIG_PM_RUNTIME=y
CONFIG_PM=y
CONFIG_PM_DEBUG=y
CONFIG_PM_ADVANCED_DEBUG=y
# CONFIG_PM_TEST_SUSPEND is not set
CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_DPM_WATCHDOG is not set
CONFIG_PM_TRACE=y
CONFIG_PM_TRACE_RTC=y
CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
CONFIG_ACPI=y
CONFIG_ACPI_SLEEP=y
CONFIG_ACPI_PROCFS=y
# CONFIG_ACPI_EC_DEBUGFS is not set
CONFIG_ACPI_AC=m
CONFIG_ACPI_BATTERY=m
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_VIDEO=m
CONFIG_ACPI_FAN=y
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=m
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
CONFIG_ACPI_THERMAL=m
CONFIG_ACPI_NUMA=y
CONFIG_ACPI_CUSTOM_DSDT_FILE=""
# CONFIG_ACPI_CUSTOM_DSDT is not set
CONFIG_ACPI_INITRD_TABLE_OVERRIDE=y
CONFIG_ACPI_DEBUG=y
CONFIG_ACPI_PCI_SLOT=y
CONFIG_X86_PM_TIMER=y
CONFIG_ACPI_CONTAINER=y
# CONFIG_ACPI_SBS is not set
# CONFIG_ACPI_HED is not set
# CONFIG_ACPI_CUSTOM_METHOD is not set
CONFIG_ACPI_BGRT=y
CONFIG_ACPI_APEI=y
# CONFIG_ACPI_APEI_GHES is not set
CONFIG_ACPI_APEI_PCIEAER=y
# CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
# CONFIG_ACPI_APEI_EINJ is not set
# CONFIG_ACPI_APEI_ERST_DEBUG is not set
# CONFIG_ACPI_EXTLOG is not set
CONFIG_SFI=y

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_COMMON=y
CONFIG_CPU_FREQ_STAT=m
CONFIG_CPU_FREQ_STAT_DETAILS=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=m
CONFIG_CPU_FREQ_GOV_USERSPACE=m
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m

bye

2014-02-20 21:36:33

by Dirk Brandewie

[permalink] [raw]
Subject: Re: [3.14-rc3] possible regression Haswell runs only at 770Mhz with powersave governor

On 02/20/2014 11:06 AM, Otto Meier wrote:
> Am 20.02.2014 17:48, schrieb Dirk Brandewie:
>> On 02/20/2014 07:01 AM, Borislav Petkov wrote:
>>> Add lists to CC.
>>>
>>> On Thu, Feb 20, 2014 at 03:32:36PM +0100, Otto Meier wrote:
>>>> Hello,
>>>>
>>>> My System which runs with older kernels up to 3.13.3
>>>> fine on my i3-4330 with 3.5 Ghz and governor powersave.
>>>> and pstate driver.
>>>>
>>>> With kernel 3.14-rc3 and Governor powersave it runs
>>>> only at 770Mhz and never switches to higher Freq. on load.
>>>> Even compiling a kernel with make -j4 does not change freq.
>>>>
>>
>> commit fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 seems to be the culprit
>>
>>>> With governor performance it switches to 3.5 Ghz and stays
>>>> there.
>>>>
>>>> Any Idea how to fix this?
>>>>
>>
>> Greg KH is seeing the same thing on his Haswell system. I am trying
>> to figure what went south.
>>
>> https://lkml.org/lkml/2014/2/19/626
>>
>>
>> Can you send me the .config for the broken kernel also the output of
>> gcc -v
>>
>>
>>
>>>> Best regards
>>>
>>
>>
>>
>
> Hello
>
> I reverted the mentioned commit.
>
> it now seams to work. But total idle power comsumption is aprox. 5 Watts
> higher as
> running kernel 3.13.3. Measured with a true rms powermeter on primery side.
>

This is the bug the commit was trying to fix :-) It works well on the test
systems I have, I am building up a Haswell test system to add to my stable.

Could you send me your whole .config file?

--Dirk
>
> gcc -v:
>
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/4.8/lto-wrapper
> Target: x86_64-suse-linux
> Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
> --mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
> --enable-languages=c,c++,objc,fortran,obj-c++,java,ada
> --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.8
> --enable-ssp --disable-libssp --disable-plugin
> --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
> --disable-libgcj --disable-libmudflap --with-slibdir=/lib64
> --with-system-zlib --enable-__cxa_atexit
> --enable-libstdcxx-allocator=new --disable-libstdcxx-pch
> --enable-version-specific-runtime-libs --enable-linker-build-id
> --program-suffix=-4.8 --enable-linux-futex --without-system-libunwind
> --with-arch-32=i586 --with-tune=generic --build=x86_64-suse-linux
> Thread model: posix
> gcc version 4.8.1 20130909 [gcc-4_8-branch revision 202388] (SUSE Linux)
>
> .config:
>
> #
> # Power management and ACPI options
> #
> CONFIG_ARCH_HIBERNATION_HEADER=y
> CONFIG_SUSPEND=y
> CONFIG_SUSPEND_FREEZER=y
> CONFIG_HIBERNATE_CALLBACKS=y
> CONFIG_HIBERNATION=y
> CONFIG_PM_STD_PARTITION=""
> CONFIG_PM_SLEEP=y
> CONFIG_PM_SLEEP_SMP=y
> CONFIG_PM_AUTOSLEEP=y
> CONFIG_PM_WAKELOCKS=y
> CONFIG_PM_WAKELOCKS_LIMIT=100
> CONFIG_PM_WAKELOCKS_GC=y
> CONFIG_PM_RUNTIME=y
> CONFIG_PM=y
> CONFIG_PM_DEBUG=y
> CONFIG_PM_ADVANCED_DEBUG=y
> # CONFIG_PM_TEST_SUSPEND is not set
> CONFIG_PM_SLEEP_DEBUG=y
> # CONFIG_DPM_WATCHDOG is not set
> CONFIG_PM_TRACE=y
> CONFIG_PM_TRACE_RTC=y
> CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
> CONFIG_ACPI=y
> CONFIG_ACPI_SLEEP=y
> CONFIG_ACPI_PROCFS=y
> # CONFIG_ACPI_EC_DEBUGFS is not set
> CONFIG_ACPI_AC=m
> CONFIG_ACPI_BATTERY=m
> CONFIG_ACPI_BUTTON=m
> CONFIG_ACPI_VIDEO=m
> CONFIG_ACPI_FAN=y
> CONFIG_ACPI_DOCK=y
> CONFIG_ACPI_PROCESSOR=m
> CONFIG_ACPI_HOTPLUG_CPU=y
> CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
> CONFIG_ACPI_THERMAL=m
> CONFIG_ACPI_NUMA=y
> CONFIG_ACPI_CUSTOM_DSDT_FILE=""
> # CONFIG_ACPI_CUSTOM_DSDT is not set
> CONFIG_ACPI_INITRD_TABLE_OVERRIDE=y
> CONFIG_ACPI_DEBUG=y
> CONFIG_ACPI_PCI_SLOT=y
> CONFIG_X86_PM_TIMER=y
> CONFIG_ACPI_CONTAINER=y
> # CONFIG_ACPI_SBS is not set
> # CONFIG_ACPI_HED is not set
> # CONFIG_ACPI_CUSTOM_METHOD is not set
> CONFIG_ACPI_BGRT=y
> CONFIG_ACPI_APEI=y
> # CONFIG_ACPI_APEI_GHES is not set
> CONFIG_ACPI_APEI_PCIEAER=y
> # CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
> # CONFIG_ACPI_APEI_EINJ is not set
> # CONFIG_ACPI_APEI_ERST_DEBUG is not set
> # CONFIG_ACPI_EXTLOG is not set
> CONFIG_SFI=y
>
> #
> # CPU Frequency scaling
> #
> CONFIG_CPU_FREQ=y
> CONFIG_CPU_FREQ_GOV_COMMON=y
> CONFIG_CPU_FREQ_STAT=m
> CONFIG_CPU_FREQ_STAT_DETAILS=y
> # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
> # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
> CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
> # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
> CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> CONFIG_CPU_FREQ_GOV_POWERSAVE=m
> CONFIG_CPU_FREQ_GOV_USERSPACE=m
> CONFIG_CPU_FREQ_GOV_ONDEMAND=y
> CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
>
> bye
>
>

2014-02-21 10:52:09

by Otto Meier

[permalink] [raw]
Subject: Re: [3.14-rc3] possible regression Haswell runs only at 770Mhz with powersave governor

Please find attached the complete .config file.

Am 20.02.2014 22:36, schrieb Dirk Brandewie:
> On 02/20/2014 11:06 AM, Otto Meier wrote:
>> Am 20.02.2014 17:48, schrieb Dirk Brandewie:
>>> On 02/20/2014 07:01 AM, Borislav Petkov wrote:
>>>> Add lists to CC.
>>>>
>>>> On Thu, Feb 20, 2014 at 03:32:36PM +0100, Otto Meier wrote:
>>>>> Hello,
>>>>>
>>>>> My System which runs with older kernels up to 3.13.3
>>>>> fine on my i3-4330 with 3.5 Ghz and governor powersave.
>>>>> and pstate driver.
>>>>>
>>>>> With kernel 3.14-rc3 and Governor powersave it runs
>>>>> only at 770Mhz and never switches to higher Freq. on load.
>>>>> Even compiling a kernel with make -j4 does not change freq.
>>>>>
>>> commit fcb6a15c2e7e76d493e6f91ea889ab40e1c643a4 seems to be the culprit
>>>
>>>>> With governor performance it switches to 3.5 Ghz and stays
>>>>> there.
>>>>>
>>>>> Any Idea how to fix this?
>>>>>
>>> Greg KH is seeing the same thing on his Haswell system. I am trying
>>> to figure what went south.
>>>
>>> https://lkml.org/lkml/2014/2/19/626
>>>
>>>
>>> Can you send me the .config for the broken kernel also the output of
>>> gcc -v
>>>
>>>
>>>
>>>>> Best regards
>>>
>>>
>> Hello
>>
>> I reverted the mentioned commit.
>>
>> it now seams to work. But total idle power comsumption is aprox. 5 Watts
>> higher as
>> running kernel 3.13.3. Measured with a true rms powermeter on primery side.
>>
> This is the bug the commit was trying to fix :-) It works well on the test
> systems I have, I am building up a Haswell test system to add to my stable.
>
> Could you send me your whole .config file?

Please find attached.

--Otto
>
> --Dirk
>> gcc -v:
>>
>> Using built-in specs.
>> COLLECT_GCC=gcc
>> COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/4.8/lto-wrapper
>> Target: x86_64-suse-linux
>> Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
>> --mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
>> --enable-languages=c,c++,objc,fortran,obj-c++,java,ada
>> --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.8
>> --enable-ssp --disable-libssp --disable-plugin
>> --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
>> --disable-libgcj --disable-libmudflap --with-slibdir=/lib64
>> --with-system-zlib --enable-__cxa_atexit
>> --enable-libstdcxx-allocator=new --disable-libstdcxx-pch
>> --enable-version-specific-runtime-libs --enable-linker-build-id
>> --program-suffix=-4.8 --enable-linux-futex --without-system-libunwind
>> --with-arch-32=i586 --with-tune=generic --build=x86_64-suse-linux
>> Thread model: posix
>> gcc version 4.8.1 20130909 [gcc-4_8-branch revision 202388] (SUSE Linux)
>>
>> .config:
>>
>> #
>> # Power management and ACPI options
>> #
>> CONFIG_ARCH_HIBERNATION_HEADER=y
>> CONFIG_SUSPEND=y
>> CONFIG_SUSPEND_FREEZER=y
>> CONFIG_HIBERNATE_CALLBACKS=y
>> CONFIG_HIBERNATION=y
>> CONFIG_PM_STD_PARTITION=""
>> CONFIG_PM_SLEEP=y
>> CONFIG_PM_SLEEP_SMP=y
>> CONFIG_PM_AUTOSLEEP=y
>> CONFIG_PM_WAKELOCKS=y
>> CONFIG_PM_WAKELOCKS_LIMIT=100
>> CONFIG_PM_WAKELOCKS_GC=y
>> CONFIG_PM_RUNTIME=y
>> CONFIG_PM=y
>> CONFIG_PM_DEBUG=y
>> CONFIG_PM_ADVANCED_DEBUG=y
>> # CONFIG_PM_TEST_SUSPEND is not set
>> CONFIG_PM_SLEEP_DEBUG=y
>> # CONFIG_DPM_WATCHDOG is not set
>> CONFIG_PM_TRACE=y
>> CONFIG_PM_TRACE_RTC=y
>> CONFIG_WQ_POWER_EFFICIENT_DEFAULT=y
>> CONFIG_ACPI=y
>> CONFIG_ACPI_SLEEP=y
>> CONFIG_ACPI_PROCFS=y
>> # CONFIG_ACPI_EC_DEBUGFS is not set
>> CONFIG_ACPI_AC=m
>> CONFIG_ACPI_BATTERY=m
>> CONFIG_ACPI_BUTTON=m
>> CONFIG_ACPI_VIDEO=m
>> CONFIG_ACPI_FAN=y
>> CONFIG_ACPI_DOCK=y
>> CONFIG_ACPI_PROCESSOR=m
>> CONFIG_ACPI_HOTPLUG_CPU=y
>> CONFIG_ACPI_PROCESSOR_AGGREGATOR=m
>> CONFIG_ACPI_THERMAL=m
>> CONFIG_ACPI_NUMA=y
>> CONFIG_ACPI_CUSTOM_DSDT_FILE=""
>> # CONFIG_ACPI_CUSTOM_DSDT is not set
>> CONFIG_ACPI_INITRD_TABLE_OVERRIDE=y
>> CONFIG_ACPI_DEBUG=y
>> CONFIG_ACPI_PCI_SLOT=y
>> CONFIG_X86_PM_TIMER=y
>> CONFIG_ACPI_CONTAINER=y
>> # CONFIG_ACPI_SBS is not set
>> # CONFIG_ACPI_HED is not set
>> # CONFIG_ACPI_CUSTOM_METHOD is not set
>> CONFIG_ACPI_BGRT=y
>> CONFIG_ACPI_APEI=y
>> # CONFIG_ACPI_APEI_GHES is not set
>> CONFIG_ACPI_APEI_PCIEAER=y
>> # CONFIG_ACPI_APEI_MEMORY_FAILURE is not set
>> # CONFIG_ACPI_APEI_EINJ is not set
>> # CONFIG_ACPI_APEI_ERST_DEBUG is not set
>> # CONFIG_ACPI_EXTLOG is not set
>> CONFIG_SFI=y
>>
>> #
>> # CPU Frequency scaling
>> #
>> CONFIG_CPU_FREQ=y
>> CONFIG_CPU_FREQ_GOV_COMMON=y
>> CONFIG_CPU_FREQ_STAT=m
>> CONFIG_CPU_FREQ_STAT_DETAILS=y
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>> CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
>> CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
>> CONFIG_CPU_FREQ_GOV_POWERSAVE=m
>> CONFIG_CPU_FREQ_GOV_USERSPACE=m
>> CONFIG_CPU_FREQ_GOV_ONDEMAND=y
>> CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
>>
>> bye
>>
>>
>
>


Attachments:
conf-3.14-rc3 (106.63 kB)