Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-02 Thread Chris Patterson 
On Fri, Feb 2, 2018 at 12:56 AM, Juergen Gross  wrote:
> On 02/02/18 01:36, Chris Patterson wrote:
>> Works great, tested it and it fixes booting Linux v4.15 kernel for me :)
>
> Can I add your "Tested-by:" to the patch when committing it?
>
>

Sure thing, have a great day.

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-02 Thread Chris Patterson 
On Fri, Feb 2, 2018 at 12:56 AM, Juergen Gross  wrote:
> On 02/02/18 01:36, Chris Patterson wrote:
>> Works great, tested it and it fixes booting Linux v4.15 kernel for me :)
>
> Can I add your "Tested-by:" to the patch when committing it?
>
>

Sure thing, have a great day.

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-02 Thread Juergen Gross 
On 02/02/18 01:36, Chris Patterson wrote:
> Works great, tested it and it fixes booting Linux v4.15 kernel for me :)

Can I add your "Tested-by:" to the patch when committing it?


Juergen

> 
> Cheers!
> 
> On Thu, Feb 1, 2018 at 3:17 PM, Boris Ostrovsky
>  wrote:
>> On 02/01/2018 07:40 AM, Juergen Gross wrote:
>>> When running as Xen pv guest %gs is initialized some time after
>>> C code is started. Depending on stack protector usage this might be
>>> too late, resulting in page faults.
>>>
>>> So setup %gs and MSR_GS_BASE in assembly code already.
>>>
>>> Cc: sta...@vger.kernel.org
>>> Signed-off-by: Juergen Gross 
>>
>> Reviewed-by: Boris Ostrovsky 
>>
>>
>>
>> ___
>> Xen-devel mailing list
>> xen-de...@lists.xenproject.org
>> https://lists.xenproject.org/mailman/listinfo/xen-devel
>

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-02 Thread Juergen Gross 
On 02/02/18 01:36, Chris Patterson wrote:
> Works great, tested it and it fixes booting Linux v4.15 kernel for me :)

Can I add your "Tested-by:" to the patch when committing it?


Juergen

> 
> Cheers!
> 
> On Thu, Feb 1, 2018 at 3:17 PM, Boris Ostrovsky
>  wrote:
>> On 02/01/2018 07:40 AM, Juergen Gross wrote:
>>> When running as Xen pv guest %gs is initialized some time after
>>> C code is started. Depending on stack protector usage this might be
>>> too late, resulting in page faults.
>>>
>>> So setup %gs and MSR_GS_BASE in assembly code already.
>>>
>>> Cc: sta...@vger.kernel.org
>>> Signed-off-by: Juergen Gross 
>>
>> Reviewed-by: Boris Ostrovsky 
>>
>>
>>
>> ___
>> Xen-devel mailing list
>> xen-de...@lists.xenproject.org
>> https://lists.xenproject.org/mailman/listinfo/xen-devel
>

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-01 Thread Chris Patterson 
Works great, tested it and it fixes booting Linux v4.15 kernel for me :)

Cheers!

On Thu, Feb 1, 2018 at 3:17 PM, Boris Ostrovsky
 wrote:
> On 02/01/2018 07:40 AM, Juergen Gross wrote:
>> When running as Xen pv guest %gs is initialized some time after
>> C code is started. Depending on stack protector usage this might be
>> too late, resulting in page faults.
>>
>> So setup %gs and MSR_GS_BASE in assembly code already.
>>
>> Cc: sta...@vger.kernel.org
>> Signed-off-by: Juergen Gross 
>
> Reviewed-by: Boris Ostrovsky 
>
>
>
> ___
> Xen-devel mailing list
> xen-de...@lists.xenproject.org
> https://lists.xenproject.org/mailman/listinfo/xen-devel

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-01 Thread Chris Patterson 
Works great, tested it and it fixes booting Linux v4.15 kernel for me :)

Cheers!

On Thu, Feb 1, 2018 at 3:17 PM, Boris Ostrovsky
 wrote:
> On 02/01/2018 07:40 AM, Juergen Gross wrote:
>> When running as Xen pv guest %gs is initialized some time after
>> C code is started. Depending on stack protector usage this might be
>> too late, resulting in page faults.
>>
>> So setup %gs and MSR_GS_BASE in assembly code already.
>>
>> Cc: sta...@vger.kernel.org
>> Signed-off-by: Juergen Gross 
>
> Reviewed-by: Boris Ostrovsky 
>
>
>
> ___
> Xen-devel mailing list
> xen-de...@lists.xenproject.org
> https://lists.xenproject.org/mailman/listinfo/xen-devel

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-01 Thread Boris Ostrovsky 
On 02/01/2018 07:40 AM, Juergen Gross wrote:
> When running as Xen pv guest %gs is initialized some time after
> C code is started. Depending on stack protector usage this might be
> too late, resulting in page faults.
>
> So setup %gs and MSR_GS_BASE in assembly code already.
>
> Cc: sta...@vger.kernel.org
> Signed-off-by: Juergen Gross 

Reviewed-by: Boris Ostrovsky

Re: [Xen-devel] [PATCH v2] x86/xen: init %gs very early to avoid page faults with stack protector

2018-02-01 Thread Boris Ostrovsky 
On 02/01/2018 07:40 AM, Juergen Gross wrote:
> When running as Xen pv guest %gs is initialized some time after
> C code is started. Depending on stack protector usage this might be
> too late, resulting in page faults.
>
> So setup %gs and MSR_GS_BASE in assembly code already.
>
> Cc: sta...@vger.kernel.org
> Signed-off-by: Juergen Gross 

Reviewed-by: Boris Ostrovsky