Application works in Debug mode but not in Release

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I am compiling an application using Visual Studio 2010 64 bit compiler. It compiles without errors. The Debug version of the application runs fine. However the Release version crashes on start-up with the following 2 errors:

Faulting application name: Router.exe, version: 1.0.0.1, time stamp: 0x536ba26e
Faulting module name: mfc100.dll, version: 10.0.40219.325, time stamp: 0x4df2cfda
Exception code: 0xc0000005

Faulting application name: Router.exe, version: 1.0.0.1, time stamp: 0x536ba26e
Faulting module name: ntdll.dll, version: 6.1.7601.18247, time stamp: 0x521eaf24
Exception code: 0xc0150010

I already checked the project properties and made sure they are the same for Debug and Release. Please, help.

Posted 9-May-14 4:40am

Nick R 336

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Sergey Alexandrovich Kryukov 9-May-14 10:45am

64 bit compiler? Which compiler? (And but, the way, there is more than one 64-bit architecture.) Anyway, not enough information. You could retest applications on Release on each essential step. Can you retrieve your steps (working without a Revision Control system would be a waste of time)? Is there threading (could be the bug only manifested through race condition)?
—SA

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CPallini · Answer 1 · 2014-05-09T05:19:00

Solution 1

Obligatory reference: Newcomer's "Surviving the Release Version" article[^].

Posted 9-May-14 5:19am

CPallini

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Nick R 336 12-May-14 9:16am

I tried running release under debug and got a break at mfc100.dll. I looked at the disassembly and it shows the problem at: 000000005920F6F6 lock xadd dword ptr [rdx+10h],eax