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Subject: RE: [cygcheck] produces repeated output - 6 times!
Date: Mon, 4 May 2009 12:29:32 -0500
Message-ID: <297343D29C14AA4D822142893ABEAEF306570B63@srv1163ex1.flightsafety.com>
In-Reply-To: <20090504171859.GB16424@ednor.casa.cgf.cx>
References: <af075b00904280347s32e89d76ve23b61db6a1c6a8e@mail.gmail.com> <20090504082512.GA21324@calimero.vinschen.de> <297343D29C14AA4D822142893ABEAEF306570A42@srv1163ex1.flightsafety.com> <49FF0586.3010006@sbcglobal.net> <20090504151802.GA4286@ednor.casa.cgf.cx> <297343D29C14AA4D822142893ABEAEF306570A98@srv1163ex1.flightsafety.com> <20090504154342.GB4286@ednor.casa.cgf.cx> <297343D29C14AA4D822142893ABEAEF306570ABB@srv1163ex1.flightsafety.com> <20090504171859.GB16424@ednor.casa.cgf.cx>
From: "Thrall, Bryan" <bryan.thrall@flightsafety.com>
To: <cygwin@cygwin.com>
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Christopher Faylor wrote on Monday, May 04, 2009 12:19 PM:

> On Mon, May 04, 2009 at 10:54:55AM -0500, Thrall, Bryan wrote:
>> Christopher Faylor wrote on Monday, May 04, 2009 10:44 AM:
>>> On Mon, May 04, 2009 at 10:35:46AM -0500, Thrall, Bryan wrote:
>>>> Christopher Faylor wrote on Monday, May 04, 2009 10:18 AM:
>>>>=20
>>>>> On Mon, May 04, 2009 at 03:11:02PM +0000, Greg Chicares wrote:
>>>>>> On 2009-05-04 14:44Z, Thrall, Bryan wrote:
>>>>>>> Corinna Vinschen wrote on Monday, May 04, 2009 3:25 AM:
>>>>>>>> On Apr 28 11:47, Julio Costa wrote:
>>>>>>>>> Bug in cygcheck? Or bug in user? :)
>>>>>>>>=20
>>>>>>>> Bug in user as far as the position of the -v option is
concerned.
>>>>>>>=20
>>>>>>> I can reproduce it; some more details:
>>>>>>>=20
>>>>>>> - 'cygcheck /bin/ash.exe -v' returns 127
>>>>>>> - it doesn't happen if run from cmd.exe
>>>>>>> - '/bin/ash.exe -v' from inside bash works just fine
>>>>>>>=20
>>>>>>> Isn't there a feature of Cygwin where it tries 5 or 6 times to
restart
>>>>>>> Windows apps (such as cygcheck) if they fail in a certain way?
That
>>>>>>> could explain the repeated output (i.e. cygcheck is trying to do
the
>>>>>>> documented 'cygcheck [PROGRAM] -v' thing but there's a bug), but
my
>>>>>>> search fu wasn't able to bring up any results.
>>>>>>=20
>>>>>> Search for 'proc_retry' in the User's Guide.
>>>>>>=20
>>>>>> Try setting
>>>>>>  CYGWIN=3Dproc_retry:1
>>>>>> to see whether that's what's happening in this case.
>>>>=20
>>>> Thanks, Greg, for the pointer!
>>>>=20
>>>>> If it is, then cygcheck would be exiting with a bad status and
bash
>>>>> would be causing cygcheck to restart.  You wouldn't see the
problem
>>>>> from the windows command line.
>>>>=20
>>>> Aren't those the exact symptoms I described?
>>>=20
>>> The "exact symptoms"?  No, in fact it was not.  I was clarifying
what to
>>> look for but I guess I should have said "Please try this from the
>>> windows command line".
>>=20
>> Sorry, I did say:
>>>>>>> - 'cygcheck /bin/ash.exe -v' returns 127
>>>>>>> - it doesn't happen if run from cmd.exe
>=20
> Sorry I missed that.
>=20
>> But I can be more exact:
>=20
>> If I run 'cygcheck /bin/ash.exe -v' from inside cmd.exe, I only get
one copy
>> of the output. I didn't think to check this before, but %ERRORLEVEL%
after
>> running that is -1073741819 (I think that's the normal way to check
return
>> values in cmd.exe?).
>=20
> The windows error code is what I was looking for but again I wasn't
> being very clear.
>=20
> That is a STATUS_ACCESS_VIOLATION, which would be a cygcheck bug.
Wish
> I could duplicate it.

Me too :)

I'll see if I can figure it out, but since this is no longer documented
cygcheck behavior (RE: Corinna's message), I guess it's not a high
priority so it may be a while.
--=20
Bryan Thrall
FlightSafety International
bryan.thrall@flightsafety.com

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