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This repository was archived by the owner on Mar 19, 2019. It is now read-only.
GetContextAsync Exceptions on ARM #126
Description
When running on Win 10 IoT with ARM CoreCLR we often get the following error:
error : [Microsoft.Net.Http.Server.WebListener] GetContextAsync
Microsoft.Net.Http.Server.WebListenerException: Invalid access to memory location
at Microsoft.Net.Http.Server.WebListener.GetContextAsync()
error : [Microsoft.AspNet.Server.WebListener.MessagePump] ListenForNextRequestAsync
Microsoft.Net.Http.Server.WebListenerException: Invalid access to memory location
at Microsoft.Net.Http.Server.WebListener.GetContextAsync()
at Microsoft.AspNet.Server.WebListener.MessagePump.<ProcessRequestsWorker>d__18.MoveNext()
This looks similar to: http://blogs.msdn.com/b/cie/archive/2013/10/31/compute-emulator-invalid-access-to-memory-location.aspx
Activity
Tratcher commentedon Jun 15, 2015
Possibly related: aspnet/dnx#2063
munyirik commentedon Apr 26, 2016
Any update on this? I'm trying to use WebListener on my Raspberry Pi 2 and hit this issue.
moozzyk commentedon Apr 26, 2016
@muratg - this may need to be retriaged.
muratg commentedon Apr 26, 2016
Let's reconsider this in 1.0.0 since UWP apps can now use http.sys to server web requests.
munyirik commentedon Apr 26, 2016
Thanks. What's the timeline for 1.0.0?
moozzyk commentedon Jun 8, 2016
The issue here is that HttpReceiveHttpRequest expects the buffer to be 8-byte aligned but on ARM the buffer is 4-byte aligned and when falls on the 4 byte boundary HttpReceiveHttpRequest returns
ERROR_NOACCESSwhich is then converted to the "Invalid access to memory location" exception.Force 8-byte alignment on HTTP_REQUEST buffer
Force 8-byte alignment on HTTP_REQUEST buffer
Force 8-byte alignment on HTTP_REQUEST buffer
Force 8-byte alignment on HTTP_REQUEST buffer
moozzyk commentedon Jun 22, 2016
Fixed in f63e53b