[OE-core] [PATCH] qemux86: disable paravirt guest, causes test failures

[Darren Hart]

On 05/07/2013 09:04 AM, Bruce Ashfield wrote:
> On Tue, May 7, 2013 at 11:49 AM, Ross Burton <ross.burton at intel.com> wrote:
>> The shutdown sanity test that we previously saw on qemux86-64 in 2.6.37 have
>> started to re-appear reproducably on qemux86 in 3.4 in the Danny series.  Until
>> this can be root-caused and fixed in the kernel, disable paravirtualisation
>> across all kernels and all qemu machines.
> 
> Make sure to cc me on linux-yocto patches, I noticed this by chance.
> 
>>
>> [ YOCTO #4196 ]
>>
>> Signed-off-by: Ross Burton <ross.burton at intel.com>
>> ---
>>  meta/recipes-kernel/linux/linux-yocto-dev.bb    |    1 -
>>  meta/recipes-kernel/linux/linux-yocto-rt_3.8.bb |    2 +-
>>  meta/recipes-kernel/linux/linux-yocto_3.4.bb    |    1 -
>>  meta/recipes-kernel/linux/linux-yocto_3.8.bb    |    2 +-
>>  4 files changed, 2 insertions(+), 4 deletions(-)
>>
>> diff --git a/meta/recipes-kernel/linux/linux-yocto-dev.bb b/meta/recipes-kernel/linux/linux-yocto-dev.bb
>> index fdea085..fcf37cc 100644
>> --- a/meta/recipes-kernel/linux/linux-yocto-dev.bb
>> +++ b/meta/recipes-kernel/linux/linux-yocto-dev.bb
>> @@ -44,5 +44,4 @@ COMPATIBLE_MACHINE = "(qemuarm|qemux86|qemuppc|qemumips|qemux86-64)"
>>  KERNEL_FEATURES_append = " features/netfilter/netfilter.scc"
>>  KERNEL_FEATURES_append_qemux86=" cfg/sound.scc"
>>  KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc"
>> -KERNEL_FEATURES_append_qemux86=" cfg/paravirt_kvm.scc"
> 
> I'd rather keep this on for the -dev kernel, it is development for a reason and
> we should leave this on as a leading edge feature.

Agreed

> 
> Bruce
> 
>>  KERNEL_FEATURES_append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "" ,d)}"
>> diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_3.8.bb b/meta/recipes-kernel/linux/linux-yocto-rt_3.8.bb
>> index 980229c..38e35db 100644
>> --- a/meta/recipes-kernel/linux/linux-yocto-rt_3.8.bb
>> +++ b/meta/recipes-kernel/linux/linux-yocto-rt_3.8.bb
>> @@ -25,6 +25,6 @@ COMPATIBLE_MACHINE = "(qemux86|qemux86-64|qemuarm)"
>>  # Functionality flags
>>  KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc features/taskstats/taskstats.scc"
>>  KERNEL_FEATURES_append = " ${KERNEL_EXTRA_FEATURES}"
>> -KERNEL_FEATURES_append_qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
>> +KERNEL_FEATURES_append_qemux86=" cfg/sound.scc"
>>  KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc"
>>  KERNEL_FEATURES_append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "" ,d)}"
>> diff --git a/meta/recipes-kernel/linux/linux-yocto_3.4.bb b/meta/recipes-kernel/linux/linux-yocto_3.4.bb
>> index b81b9ac..18d665a 100644
>> --- a/meta/recipes-kernel/linux/linux-yocto_3.4.bb
>> +++ b/meta/recipes-kernel/linux/linux-yocto_3.4.bb
>> @@ -26,5 +26,4 @@ COMPATIBLE_MACHINE = "qemuarm|qemux86|qemuppc|qemumips|qemux86-64"
>>  KERNEL_FEATURES_append = " features/netfilter/netfilter.scc"
>>  KERNEL_FEATURES_append_qemux86=" cfg/sound.scc"
>>  KERNEL_FEATURES_append_qemux86-64=" cfg/sound.scc"
>> -KERNEL_FEATURES_append_qemux86=" cfg/paravirt_kvm.scc"
>>  KERNEL_FEATURES_append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "" ,d)}"
>> diff --git a/meta/recipes-kernel/linux/linux-yocto_3.8.bb b/meta/recipes-kernel/linux/linux-yocto_3.8.bb
>> index 4bf6bf4..75e2dbb 100644
>> --- a/meta/recipes-kernel/linux/linux-yocto_3.8.bb
>> +++ b/meta/recipes-kernel/linux/linux-yocto_3.8.bb
>> @@ -25,6 +25,6 @@ COMPATIBLE_MACHINE = "qemuarm|qemux86|qemuppc|qemumips|qemux86-64"
>>  # Functionality flags
>>  KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc"
>>  KERNEL_FEATURES_append = " ${KERNEL_EXTRA_FEATURES}"
>> -KERNEL_FEATURES_append_qemux86=" cfg/sound.scc cfg/paravirt_kvm.scc"
>> +KERNEL_FEATURES_append_qemux86=" cfg/sound.scc"


Have we seen the failure on 3.8? Or only on 3.4?


-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Technical Lead - Linux Kernel