Bug #4702 was the first try to fix this issue. The identified main cause was fixed but it also raised a lot more problems with SeamlessRDP on Windows Server 2012. Due to time constraints for the 4.3.0 release bug #4702 is closed and this bugs is the continuation. There seems to be two problems left to solve, first a spawn of subprocess is timed out, secondly the window hooks doesn't seem to work as expected.
Upstream bug created https://github.com/rdesktop/seamlessrdp/issues/1
Seamlessrdp tries to open same channel using WTSVirtualChannelOpen() which is not supported. It did "just" work through versions up to 2008 but 2012 introduced changes that prevents opening the same channel several times. It's not even supported from different processes. Possible solution is to create a shared memory IPC from the hooks to seamlessrdpshell for read/write data over a single virtual channel. See Kevin's second answer on this thread: https://social.technet.microsoft.com/Forums/en-US/7ce64172-fa7a-4a70-8635-4b83a0d88a79/wtsvirtualchannelopen-fails-on-windows-server-2012-identical-code-works-fine-on-windows-server-2008
The impl. for this bug affect all platforms and tests should be performed at least on oldest supported platform and 2012. The scope of the change is fundamental and all aspects of the function needs to be tested. Here follows a few takes on tests; - reconnect - killed seamlessrdpshell - 32bit programs on 64 bit arch - error handling - seamless persistent mode
(In reply to comment #4) > The impl. for this bug affect all platforms and tests should be performed at > least on oldest supported platform and 2012. After discussions with Henrik, we agreed that we should test 2012R2 rather than 2012.
32-bit applications aren't working properly. They just hang with 100% CPU usage.
(In reply to comment #6) > 32-bit applications aren't working properly. They just hang with 100% CPU > usage. I was able to reproduce this issue. However if i run a 32bit seamlessrdpshell.exe there was no problem at all running the 32bit application...
Commit 31013, changes the write buffer size to something more decent for proper feedback to user.
A crashes seamlessrdpshell works fine but there is some issue with a hung seamlessrdpshell. This is tested by doing "suspend" in process explorer. With a single application then the application correctly times out and starts ignoring seamlessrdpshell. However seamlessrdpshell itself is permanently locked up after doing resume on it. With two applications then the applications lock up permanently as well.
Everything works just fine on 2008R2 now. I've tested both 64-bit and 32-bit applications, and both suspending and killing seamlessrdpshell. I can't find any regressions.
Seamless 32-bit applications from Windows 2012 R2 never shows up on the Linux desktop. Task manager on Windows shows the process as "Not responding". Verified with both Notepad and Calculator. > tl-run-winapp-seamless "C:\Windows\SysWOW64\notepad.exe" > tl-run-winapp-seamless "C:\Windows\SysWOW64\calc.exe"
(In reply to comment #13) > Seamless 32-bit applications from Windows 2012 R2 never shows up on the Linux > desktop. Task manager on Windows shows the process as "Not responding". > > Verified with both Notepad and Calculator. > > > tl-run-winapp-seamless "C:\Windows\SysWOW64\notepad.exe" > > tl-run-winapp-seamless "C:\Windows\SysWOW64\calc.exe" I just installed nightly build of windows tools on my 2012R2 test environment, and I'm not able to reproduce your errors. Everything works fine...
(In reply to comment #13) > Seamless 32-bit applications from Windows 2012 R2 never shows up on the Linux > desktop. Task manager on Windows shows the process as "Not responding". > > Verified with both Notepad and Calculator. > > > tl-run-winapp-seamless "C:\Windows\SysWOW64\notepad.exe" > > tl-run-winapp-seamless "C:\Windows\SysWOW64\calc.exe" Can't reproduce after updating to the latest nightly build.
(In reply to comment #15) > (In reply to comment #13) > > Seamless 32-bit applications from Windows 2012 R2 never shows up on the Linux > > desktop. Task manager on Windows shows the process as "Not responding". > > > > Verified with both Notepad and Calculator. > > > > > tl-run-winapp-seamless "C:\Windows\SysWOW64\notepad.exe" > > > tl-run-winapp-seamless "C:\Windows\SysWOW64\calc.exe" > > Can't reproduce after updating to the latest nightly build. And with that, everything seems to work fine.
