More logging to console.
Mark Roddy
On Thu, Jun 7, 2018 at 2:50 PM xxxxx@outlook.com
wrote:
> I’ve tried all these, but it did not yield any red flags.
>
> Any other ideas?
>
> Burrr
>
> On 6/5/2018 5:57 PM, xxxxx@gmail.com wrote:
>
> And debug console logging, even if it slows down reproduction to have the
> debugger attached, would at least give you clues about what your driver was
> doing around the time of the failure.
>
> I’d dedicate a test system just to running with the debugger attached and
> your driver logging its operations. Meanwhile pursue other paths.
>
> Mark Roddy
>
>
> On Tue, Jun 5, 2018 at 2:23 PM xxxxx@osr.com
> wrote:
>
>> >The problem is hard to create and takes anywhere from 2 hrs to 18 hrs
>>
>> Ugh. My condolences.
>>
>> >I don’t have a kernel debugger attached
>>
>> Regardless, I would recommend you test your driver with Driver Verifier
>> DMA verification enabled. IF you have a problem with the DMA APIs, this
>> will usually catch it quickly.
>>
>> >Also I’ve noticed that the problem occurs sometimes
>> >when no DMA operation is going on.
>>
>> Yes, but that doesn’t rule out the DMA. As Mr. Ammerman suggested, this
>> could be a corrupted DMA operation resulting in an overwrite.
>>
>> Peter
>> OSR
>> @OSRDrivers
>>
>>
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