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Freeze of Kde applications


does at anyone the current cygwin64 Kde5 programs especially okular and konsole reliable work?

In my case konsole often freezes if I start something which needs 100% CPU resources, i.e. a build with make -j 20.

Okular does sometimes work a long time, sometimes nearly direct after opening a document it freezes.

Freezes means in my case, that the application didn't respond to anything (except kill), visual everything is fine. 

Starting okular with strace doesn't work, also attaching the process after program is started to strace doesn't work. If I start okular through gdb and I interrupt the process most of the time gdb shows this

	Python Exception <type 'exceptions.KeyboardInterrupt'> <type 'exceptions.KeyboardInterrupt'>:
	Program received signal SIGINT, Interrupt.
	g_wakeup_signal (wakeup=0xffffbeb0)
	    at /usr/src/debug/glib2.0-2.52.3-1/glib/gwakeup.c:250
	250           while (G_UNLIKELY (res == -1 && errno == EINTR));

But I don't think that this is the issue.

If I make a fresh installation of Cygwin I get the same issues.

If at someone these programs reliable work maybe he can send me the output of 
	# cygcheck.exe --check-setup


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