[article] Language Design Deal Breakers

[Walter Bright]

On 5/28/2013 7:48 AM, deadalnix wrote:
> On Tuesday, 28 May 2013 at 13:35:01 UTC, David Nadlinger wrote:
>> On Tuesday, 28 May 2013 at 08:02:46 UTC, Walter Bright wrote:
>>> On 5/28/2013 12:06 AM, Don wrote:
>>>> On Sunday, 26 May 2013 at 18:43:30 UTC, Walter Bright wrote:
>>>>> Fibers should be implemented by mapping a 4K page with no access rights at the
>>>>> end of each stack.
>>>>
>>>> We do that in our code. Fibers are virtually unusable without it, it is
>>>> incredibly easy to get a stack overflow, and they are horrible to debug.
>>>
>>> Dang, that needs to get folded into D2!
>>
>> I'm 100% sure we already do this for Windows, as I've had my share of fun with
>> the Fiber implementation there. Might not be the case for the various Posixen,
>> though.
>>
>> David
>
> Not tested on windows, but can repro on OSX and linux.

So if the guard page is implemented, why are you having problems debugging stack 
overflows?