C# windows application crashing suddenly without any error message
c#, winforms
Solution
`Exception Code: c0000005` is a ACCESS_VIOLATION, that is your program is trying to access region of memory outside it's own. `Fault Module Name: StackHash_6bac` means that no module was loaded on fault address:
The answer is that the Windows executive couldn’t identify the module we were in when the application crashed (it uses the instruction pointer to determine what code was executing). In this case, the kernel simply takes a hash of the stack so at least we might be able to identify if we’ve seen this exact crash before. Here’s the answer summarized by an engineer from Microsoft:
In the OS when I try to get a faulting module name it is possible that there is no module laoded (sic) at that address. For example in this case the EIP was zero. So in those cases where a module is not loaded and it is not also in the unloaded module list, I take a stack hash of the stack so that we can identify this crash from other crashes where also the module is not known.
Given all that, most probably you are experiencing some resource leak, which eventually leads to this access violation error.
Problem
My application started crashing suddenly without any proper message. The application was built in ANY CPU and was running on 64 bit machine. At the time of crash, it was using around `1.5GB` of memory. The project is storing it all operational process in `SQLCe4.0` as back-end database and the project size was almost around `2.8 GB`. When I checked Windows event viewer the message was like this : ``` Problem signature: Problem Event Name: APPCRASH Application Name: MyApp.exe Application Version: 2.7.710.1137 Application Timestamp: 51dcf6b1 **Fault Module Name: StackHash_6bac** Fault Module Version: 0.0.0.0 Fault Module Timestamp: 00000000 Exception Code: c0000005 Exception Offset: 000000007782000a OS Version: 6.1.7601.2.1.0.256.1 Locale ID: 1033 Additional Information 1: 6bac Additional Information 2: 6bac59273bcf6f09b20009b5873b0c76 Additional Information 3: 2600 Additional Information 4: 2600c3cc88a8c9bf041ae82fe9962258 ``` Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409 If the online privacy statement is not available, please read our privacy statement offline: ``` C:\Windows\system32\en-US\erofflps.txt ``` I am unable to figure out what is the exact cause of failure. Any help will be appreciated.