Hi,
as in https://forums.asp.net/t/2135504.aspx?Possible+WebSocket+ntdll+Bug+Crashes+dotnet+exe I wanted to have some thoughts on an error I'm getting on a webapp on azure before posting an issue on the .NET core Git.
We are running an API on a VM on azure. The API is written in dotnet core 2.0.3
We are facing a problem that seems a bit random: our API restarts every now and then without any apparent reason.
We installed DebugDiag and got the second chance exception and this is the warning:
WARNING - DebugDiag was not able to locate debug symbols for \aspnetcore.dll, so the information below may be incomplete.
In w3wp__Racenet API__PID__5228__Date__06_03_2018__Time_01_37_03PM__139__Second_Chance_Exception_C0000005.dmp the assembly instruction ataspnetcore!RegisterModule+99e9 in C:\Windows\System32\inetsrv\aspnetcore.dll fromMicrosoft Corporation has caused an access violation exception (0xC0000005) when trying toread from memory location 0x246143c1 on thread 4
This is the stack trace of the thread 4.
| Entry point | w3tp!THREAD_MANAGER::ThreadManagerThread |
| Create time | 03/06/2018 04:30:00 |
| Time spent in user mode | 0 Days 00:00:08.531 |
| Time spent in kernel mode | 0 Days 00:00:07.015 |
This thread is not fully resolved and may or may not be a problem. Further analysis of these threads may be required.
| aspnetcore!RegisterModule+99e9 |
| iiscore!NOTIFICATION_CONTEXT::RequestDoWork+2da |
| iiscore!NOTIFICATION_CONTEXT::CallModulesInternal+19c |
| iiscore!NOTIFICATION_CONTEXT::CallModules+36 |
| iiscore!NOTIFICATION_MAIN::DoWork+3d8 |
| iiscore!W3_CONTEXT_BASE::ContinueNotificationLoop+a5 |
| iiscore!W3_MAIN_CONTEXT::OnIoCompletion+e2 |
| w3dt!WP_CONTEXT::OnCompletion+9fcc |
| w3tp!THREAD_POOL_DATA::ThreadPoolThread+73 |
| w3tp!THREAD_POOL_DATA::ThreadPoolThread+33 |
| w3tp!THREAD_MANAGER::ThreadManagerThread+49 |
| kernel32!BaseThreadInitThunk+14 |
ntdll!RtlUserThreadStart+21 |
Also... even by adding "srv*c:\websymbols2*https://msdl.microsoft.com/download/symbols" to the settings, it looks like DebugDiag can't retrieve PDBs for dotnet core (and I wasn't able to find them anywhere).
Any chance that somebody can help?
Thank you