We now also know that this only happens on Windows 2003 x86 machines which 
have a Pentium 3 processor. My first attempt to provide an executable with 
optimization and SSE2 support disabled have been unsuccessful. At this 
point I don't think it's something that's related to Protocol Buffers, it 
just seems to generate code that's not fully compatible with that processor 
architecture.

On Tuesday, October 4, 2016 at 12:37:24 PM UTC-5, Adam Cozzette wrote:
>
> It sounds like the static descriptor data is somehow getting corrupted. On 
> the affected systems does it happen reproducibly every time the application 
> starts up?
>
> On Mon, Oct 3, 2016 at 10:54 AM, Ingmar Koecher <ingmar....@gmail.com 
> <javascript:>> wrote:
>
>> I can now also confirm that this problem only occurs on Windows Server 
>> 2003 x86 hosts.
>>
>>
>> On Monday, October 3, 2016 at 8:48:48 AM UTC-5, Ingmar Koecher wrote:
>>>
>>> We've been using protocol buffers for a couple of months (version 2, 
>>> exclusively on Windows) and while it works on 99.9% of systems, on a few 
>>> systems an application won't start with the following errors:
>>>
>>> [libprotobuf ERROR google\protobuf\descriptor_database.cc:315]
>>> Invalid file descriptor data passed to EncodedDescriptorDatabase::Add().
>>>
>>> [libprotobuf FATAL 
>>> google\protocol_buffers\src\google\protobuf\descriptor.cc:1018] 
>>> CHECK failed:
>>> generated_database_->Add(encoded_file_descriptor, size):
>>>
>>> Unfortunately I don't have access to those systems, so I can't debug it. 
>>> I've tried to send special instrumented versions to capture the output, but 
>>> I haven't been able to figure out what the issue is.
>>>
>>> I have a suspicion that it only affects Windows 2003 Servers, but I'm 
>>> not sure. The protocol buffers are statically linked from Visual Studio 
>>> 2010.
>>>
>>> Do these error messages ring a bell with anyone?
>>>
>>>
>>> Thanks!
>>>
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