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Created attachment 1720 [details]
Code snippet that fails.
During a debug session in MonoDevelop 22.214.171.124 (and 126.96.36.199) a "The Request timed out" WebException is thrown. This does not happen if:
1. The debug executable is run from the command line.
2. The .NET runtimes are switched to Microsoft .NET
Mono version: 2.10.8.
Platform: Windows 7 64-bit
A little more info:
Still present using:
- MonoDevelop 2.9.4 (alpha).
- Mono 2.11 runtimes.
It looks like (in mono 2.10.4) the eventual timeout occurs because a WaitHandle times out, however, internally this is reported by WaitOne_internal, WaitHandle.cs:376, which can only return false if the wait failed or timed out. The timeout the default timeout is 10 seconds and WaitOne_internal returns immediately. (See https://github.com/mono/mono/blob/ee240bb13a20510bd4398251046324a8a44e3c3c/mono/metadata/threads.c#L1669)
Seems like the wait is failing.
This bug does not present on Ubuntu 10.04, Monodevelop 2.8.6, Mono 2.10.8.
Sounds like this bug has been fixed in newer versions of Mono then
I probably wasn't being clear. It seems it's ONLY a windows bug, it didn't show up in the Linux versions I mentioned above. I still saw it using Windows Monodevelop 2.9.4/Mono 2.11.
Or maybe you're talking about something else.
Per my Comment 1, it does appear that the WaitOne_internal call (used in WaitHandle) does fall through with a WAIT_IO_COMPLETE, though the APC it launches (WebConnection.cs - InitConnection) doesn't complete.
I'm looking a little further into it. I'd kick this to a Mono bug but it only seems to appear during MonoDevelop debug session.
Sounds like the soft debugger interrupt code and the io-layer aren't getting on well on Windows.
Ya, I was thinking something like that. Any hints as to where to start digging around on that one?
The io-layer and abort code were rewritten since this bug was reported.
Please reopen it if it still happens with a recent version of mono