Patchwork [PULL,3.8,0/1] ppc patch queue 2013-01-18 for 3.8

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Submitter Alexander Graf
Date Jan. 17, 2013, 11:48 p.m.
Message ID <1358466506-6587-1-git-send-email-agraf@suse.de>
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Permalink /patch/213411/
State New
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Pull-request

git://github.com/agraf/linux-2.6.git kvm-ppc-3.8

Comments

Alexander Graf - Jan. 17, 2013, 11:48 p.m.
Hi Marcelo / Gleb,

This is my current patch queue for ppc against 3.8.  Please pull.

It contains a bug fix for an issue that Ben Collins ran into, where
a guest would just abort because it traps during an unknown instruction.

Alex


The following changes since commit dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8:
  Linus Torvalds (1):
        Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs

are available in the git repository at:

  git://github.com/agraf/linux-2.6.git kvm-ppc-3.8

Alexander Graf (1):
      KVM: PPC: Emulate dcbf

 arch/powerpc/kvm/emulate.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
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Gleb Natapov - Jan. 18, 2013, 10:55 a.m.
On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
> Hi Marcelo / Gleb,
> 
> This is my current patch queue for ppc against 3.8.  Please pull.
> 
> It contains a bug fix for an issue that Ben Collins ran into, where
> a guest would just abort because it traps during an unknown instruction.
> 
Is this regression from 3.7? If it is not it should wait for 3.9.

> Alex
> 
> 
> The following changes since commit dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8:
>   Linus Torvalds (1):
>         Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs
> 
> are available in the git repository at:
> 
>   git://github.com/agraf/linux-2.6.git kvm-ppc-3.8
> 
> Alexander Graf (1):
>       KVM: PPC: Emulate dcbf
> 
>  arch/powerpc/kvm/emulate.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> --
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Alexander Graf - Jan. 18, 2013, 12:14 p.m.
On 18.01.2013, at 11:55, Gleb Natapov wrote:

> On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
>> Hi Marcelo / Gleb,
>> 
>> This is my current patch queue for ppc against 3.8.  Please pull.
>> 
>> It contains a bug fix for an issue that Ben Collins ran into, where
>> a guest would just abort because it traps during an unknown instruction.
>> 
> Is this regression from 3.7? If it is not it should wait for 3.9.

The first time I heard of this was with a 3.8 guest. But we can also wait for 3.9 and push it through stable afterwards.


Alex

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Benjamin Collins - Jan. 18, 2013, 12:23 p.m.
On Jan 18, 2013, at 7:14 AM, Alexander Graf <agraf@suse.de> wrote:

> 
> On 18.01.2013, at 11:55, Gleb Natapov wrote:
> 
>> On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
>>> Hi Marcelo / Gleb,
>>> 
>>> This is my current patch queue for ppc against 3.8.  Please pull.
>>> 
>>> It contains a bug fix for an issue that Ben Collins ran into, where
>>> a guest would just abort because it traps during an unknown instruction.
>>> 
>> Is this regression from 3.7? If it is not it should wait for 3.9.
> 
> The first time I heard of this was with a 3.8 guest. But we can also wait for 3.9 and push it through stable afterwards.

It's such a simple change, what is the issue with including it? If the bug is hit, qemu/kvm exits anyway, so adding the patch can't do any damage.

--
Ben Collins - Principal Architect
Servergy, Inc. - www.servergy.com

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Gleb Natapov - Jan. 21, 2013, 10:40 a.m.
On Fri, Jan 18, 2013 at 07:23:53AM -0500, Ben Collins wrote:
> On Jan 18, 2013, at 7:14 AM, Alexander Graf <agraf@suse.de> wrote:
> 
> > 
> > On 18.01.2013, at 11:55, Gleb Natapov wrote:
> > 
> >> On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
> >>> Hi Marcelo / Gleb,
> >>> 
> >>> This is my current patch queue for ppc against 3.8.  Please pull.
> >>> 
> >>> It contains a bug fix for an issue that Ben Collins ran into, where
> >>> a guest would just abort because it traps during an unknown instruction.
> >>> 
> >> Is this regression from 3.7? If it is not it should wait for 3.9.
> > 
> > The first time I heard of this was with a 3.8 guest. But we can also wait for 3.9 and push it through stable afterwards.
> 
> It's such a simple change, what is the issue with including it? If the bug is hit, qemu/kvm exits anyway, so adding the patch can't do any damage.
> 
If we continue pushing simple changes that can't do any damage to
late -rc trees 3.8 will never be ready to released. The patch can go to
stable after 3.8 is released. Again if this is indeed regression this
another matter.

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			Gleb.
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Benjamin Collins - Jan. 21, 2013, 12:15 p.m.
On Jan 21, 2013, at 5:40 AM, Gleb Natapov <gleb@redhat.com> wrote:

> On Fri, Jan 18, 2013 at 07:23:53AM -0500, Ben Collins wrote:
>> On Jan 18, 2013, at 7:14 AM, Alexander Graf <agraf@suse.de> wrote:
>> 
>>> 
>>> On 18.01.2013, at 11:55, Gleb Natapov wrote:
>>> 
>>>> On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
>>>>> Hi Marcelo / Gleb,
>>>>> 
>>>>> This is my current patch queue for ppc against 3.8.  Please pull.
>>>>> 
>>>>> It contains a bug fix for an issue that Ben Collins ran into, where
>>>>> a guest would just abort because it traps during an unknown instruction.
>>>>> 
>>>> Is this regression from 3.7? If it is not it should wait for 3.9.
>>> 
>>> The first time I heard of this was with a 3.8 guest. But we can also wait for 3.9 and push it through stable afterwards.
>> 
>> It's such a simple change, what is the issue with including it? If the bug is hit, qemu/kvm exits anyway, so adding the patch can't do any damage.
>> 
> If we continue pushing simple changes that can't do any damage to
> late -rc trees 3.8 will never be ready to released. The patch can go to
> stable after 3.8 is released. Again if this is indeed regression this
> another matter.


It's indeed a regression for me. Where as QEmu used to work, now it doesn't. The regression appears to only occur when running 3.8 kernel in guest, which means the only way to run a 3.8 kernel in guest is with this patch.

--
Servergy  : http://www.servergy.com/
SwissDisk : http://www.swissdisk.com/
Ubuntu    : http://www.ubuntu.com/
My Blog   : http://ben-collins.blogspot.com/

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Marcelo Tosatti - Jan. 21, 2013, 11:36 p.m.
On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
> Hi Marcelo / Gleb,
> 
> This is my current patch queue for ppc against 3.8.  Please pull.
> 
> It contains a bug fix for an issue that Ben Collins ran into, where
> a guest would just abort because it traps during an unknown instruction.
> 
> Alex
> 
> 
> The following changes since commit dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8:
>   Linus Torvalds (1):
>         Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs
> 
> are available in the git repository at:
> 
>   git://github.com/agraf/linux-2.6.git kvm-ppc-3.8
> 
> Alexander Graf (1):
>       KVM: PPC: Emulate dcbf
> 
>  arch/powerpc/kvm/emulate.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)

Pulled, thanks.

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Alexander Graf - Jan. 24, 2013, 6:23 p.m.
On 22.01.2013, at 00:36, Marcelo Tosatti wrote:

> On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
>> Hi Marcelo / Gleb,
>> 
>> This is my current patch queue for ppc against 3.8.  Please pull.
>> 
>> It contains a bug fix for an issue that Ben Collins ran into, where
>> a guest would just abort because it traps during an unknown instruction.
>> 
>> Alex
>> 
>> 
>> The following changes since commit dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8:
>>  Linus Torvalds (1):
>>        Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs
>> 
>> are available in the git repository at:
>> 
>>  git://github.com/agraf/linux-2.6.git kvm-ppc-3.8
>> 
>> Alexander Graf (1):
>>      KVM: PPC: Emulate dcbf
>> 
>> arch/powerpc/kvm/emulate.c |    2 ++
>> 1 files changed, 2 insertions(+), 0 deletions(-)
> 
> Pulled, thanks.

Into which queue? kvm.git doesn't contain it anywhere.


Alex

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Gleb Natapov - Jan. 24, 2013, 9:18 p.m.
On Thu, Jan 24, 2013 at 07:23:10PM +0100, Alexander Graf wrote:
> 
> On 22.01.2013, at 00:36, Marcelo Tosatti wrote:
> 
> > On Fri, Jan 18, 2013 at 12:48:25AM +0100, Alexander Graf wrote:
> >> Hi Marcelo / Gleb,
> >> 
> >> This is my current patch queue for ppc against 3.8.  Please pull.
> >> 
> >> It contains a bug fix for an issue that Ben Collins ran into, where
> >> a guest would just abort because it traps during an unknown instruction.
> >> 
> >> Alex
> >> 
> >> 
> >> The following changes since commit dfdebc24837ed0a1d6ad73b108a10d3c88d1b6e8:
> >>  Linus Torvalds (1):
> >>        Merge tag 'for-linus-v3.8-rc4' of git://oss.sgi.com/xfs/xfs
> >> 
> >> are available in the git repository at:
> >> 
> >>  git://github.com/agraf/linux-2.6.git kvm-ppc-3.8
> >> 
> >> Alexander Graf (1):
> >>      KVM: PPC: Emulate dcbf
> >> 
> >> arch/powerpc/kvm/emulate.c |    2 ++
> >> 1 files changed, 2 insertions(+), 0 deletions(-)
> > 
> > Pulled, thanks.
> 
> Into which queue? kvm.git doesn't contain it anywhere.
> 
master.

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