, September 16, 2016 12:24 PM
>> ...
>>> Subject: Re: [PATCH] ndctl: move test/dax-errors buffer to global to
>>> avoid gcc optimization
>>>
>>> On 09/15/2016 06:18 PM, Elliott, Robert (Persistent Memory) wrote:
>>>>
>>
>>>>&g
On 09/18/2016 09:42 AM, Elliott, Robert (Persistent Memory) wrote:
>
>
>> -Original Message-
>> From: Dave Jiang [mailto:dave.ji...@intel.com]
>> Sent: Friday, September 16, 2016 12:24 PM
> ...
>> Subject: Re: [PATCH] ndctl: move test/dax-errors
> -Original Message-
> From: Dave Jiang [mailto:dave.ji...@intel.com]
> Sent: Friday, September 16, 2016 12:24 PM
...
> Subject: Re: [PATCH] ndctl: move test/dax-errors buffer to global to
> avoid gcc optimization
>
> On 09/15/2016 06:18 PM, Elliott, Robert (Per
On 09/15/2016 06:18 PM, Elliott, Robert (Persistent Memory) wrote:
>
>
>> -Original Message-
>> From: Linux-nvdimm [mailto:linux-nvdimm-boun...@lists.01.org] On
>> Behalf Of Dave Jiang
>> Sent: Thursday, September 15, 2016 5:28 PM
>> To: vishal.l.ve...@intel.com
>> Cc:
On 09/15/2016 06:18 PM, Elliott, Robert (Persistent Memory) wrote:
>
>
>> -Original Message-
>> From: Linux-nvdimm [mailto:linux-nvdimm-boun...@lists.01.org] On
>> Behalf Of Dave Jiang
>> Sent: Thursday, September 15, 2016 5:28 PM
>> To: vishal.l.ve...@intel.com
>> Cc:
> -Original Message-
> From: Linux-nvdimm [mailto:linux-nvdimm-boun...@lists.01.org] On
> Behalf Of Dave Jiang
> Sent: Thursday, September 15, 2016 5:28 PM
> To: vishal.l.ve...@intel.com
> Cc: linux-nvdimm@lists.01.org
> Subject: [PATCH] ndctl: move test/dax-errors buffer to global to
>
On 09/15, Dave Jiang wrote:
> Some gcc toolchain are optimizing out the memcpy and this causes dax-errors
> to not trigger the SIG_BUS when doing memcpy on an mmap'd buffer. By moving
> the buffer to a global variable this bypasses the optimization and allow
> the test to work as intended.
>
>
