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Date: Sat, 29 Mar 2014 15:29:28 -0400
From: Christopher Faylor <cgf-use-the-mailinglist-please@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: Public key authorization problem with latest snapshot
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References: <5329B9D0.6070703@cornell.edu> <20140319160914.GD2715@calimero.vinschen.de> <5329C9EF.1000305@cornell.edu> <20140319170508.GF2715@calimero.vinschen.de> <885290127.20140320015843@yandex.ru> <20140320150258.GD3729@calimero.vinschen.de> <5336F3E3.5000402@cornell.edu>
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User-Agent: Mutt/1.5.20 (2009-06-14)

On Sat, Mar 29, 2014 at 12:25:07PM -0400, Ken Brown wrote:
>On 3/20/2014 11:02 AM, Corinna Vinschen wrote:
>> On Mar 20 01:58, Andrey Repin wrote:
>>> Greetings, Corinna Vinschen!
>>>
>>>> The code is now practically equivalent to what is in 1.7.28.  Only the
>>>> VectoredContinueHandler, which was the reason Cygwin's exception handler
>>>> could be called twice, is not called anymore.  Instead there's a vectored
>>>> exception handler which is only called during debugging.
>>>
>>>> Before:
>>>
>>>>    if (!handler_installed)
>>>>      {
>>>>        handler_installed = true;
>>>>        SetUnhandledExceptionFilter (handle);
>>>>        AddVectoredContinueHandler (1, handle);
>>>>      }
>>>
>>>> After:
>>>
>>>>    if (!handler_installed)
>>>>      {
>>>>        handler_installed = true;
>>>>        SetUnhandledExceptionFilter (handle);
>>>>        AddVectoredExceptionHandler (1, handle_while_being_debugged);
>>>>      }
>>>
>>>> If anybody can explain this weird behaviour, please educate me.
>>>
>>> I can't explain the behavior, but I could say, that setting
>>> "handler_installed = true;" before the handler is actually installed is not
>>> quite right.
>>> Unless that variable is used inside either of two functions called afterward,
>>> I would move it down to the end of `if' block.
>>
>> BTDT.  This isn't the problem.  I *may* have found the culprit today,
>> but I ripped apart a lot of the code so I'm not really sure yet.  Stay
>> tuned.
>
>The problems I've reported seem to all be fixed in the latest snapshot 
>(2014-03-29 15:21:43 UTC).  Thanks!

I'm sure Corinna will be happy to hear that.  She put in LONG hours
getting that issue sorted out.

I helped too, of course, by offering important "I don't like that
implementation" style feedback.  It was one of those 50/50 collaborations
where one person does all the work and the other person mentions it on
a mailing list.

cgf

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