C# Application crash cause

EDN Admin · Jan 17, 2012

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<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px I am investigating a crash happening in one of my applications, I have found out that the it is because I am subscribing to
the EventLogEntryWritten to monitor the event log for entry written events. I have been looking at the EventLog class in Reflector and following the call stack in WinDBG to see where my application is failing.Fist of all here is the output of !eestack in WinDBG
around where my application is failing:


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e620 74c9e900 mscorwks!StrongNameErrorInfo+0x103e4, calling mscorwks!GetMetaDataInternalInterface+0x7f70
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e694 74c9e855 mscorwks!StrongNameErrorInfo+0x10339, calling mscorwks+0x31c0
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e6a0 74215058 (MethodDesc 0x7402b7c4 +0x18 System.Security.CodeAccessPermission.RevertAssert()), calling
(MethodDesc 0x740c84fc +0 System.Security.SecurityRuntime.RevertAssert(System.Threading.StackCrawlMark ByRef))
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e6ac 73df4598 (MethodDesc 0x738bc65c +0xa0 System.Diagnostics.SharedUtils.CreateSafeWin32Exception(Int32)),
calling (MethodDesc 0x7402b7c4 +0 System.Security.CodeAccessPermission.RevertAssert())
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e6e4 73ee6fa0 (MethodDesc 0x738e064c System.Diagnostics.EventLog.get_OldestEntryNumber()), calling mscorwks!StrongNameErrorInfo+0x1031b
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e6f4 73df24ed (MethodDesc 0x738e06e8 +0x1bd System.Diagnostics.EventLog.CompletionCallback(System.Object)),
calling (MethodDesc 0x738e064c +0 System.Diagnostics.EventLog.get_OldestEntryNumber())
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e728 74bb8cef mscorwks!CoUninitializeEE+0x5687, calling mscorwks!CoUninitializeEE+0x5613
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 0632e73c 73df0fe4 (MethodDesc 0x738e096c +0x94 System.Diagnostics.EventLog.StaticCompletionCallback(System.Object,
Boolean)), calling 739443d4


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px Roughly following that from what I see in Reflector here is a part of the Get accessor for OldestEntryNumber:


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px if (!UnsafeNativeMethods.GetOldestEventLogRecord(this.readHandle, number))
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px {
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px throw SharedUtils.CreateSafeWin32Exception();
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif 

<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px This Win32 exception is what is causing my application to crash. Looking at the UnsafeNativeMethods.GetOldestEventLogRecord
method:


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px [DllImport("advapi32.dll", CharSet=CharSet.Unicode, SetLastError=true)]
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px public static extern bool GetOldestEventLogRecord(SafeHandle hEventLog, int[] number);


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px So I am guessing my problem is either one of 2 things?:


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 1 - the GetOldestEventLogRecord method is failing for some reason
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px OR
<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px 2 - The system is unable to access/load the advapi32.dll, could this be why I see StrongNameErrorInfo+0x1031b around where
it could be calling this method in the output of !eestack?


<p style=" <span style="font-family:Arial,Liberation Sans,DejaVu Sans,sans-serif <span style="font-size:14px; line-height:18px Any ideas or help on this would be really helpful and appreciated!
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C# Application crash cause

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