SW: rtlinux-2.0-prepatched.tgz
HW: 486DX4 single board PC. (Previous versions of RT-Linux ran
well on this machine)
Test1:
I have two windows on the target host.
Window1 is the serial console. Window2 is an xterm with ssh.
I start 'frank' demo in window1 with 'make test'. It runs and finishes well.
I get back the shell prompt but the system seems to be frozen.
No echo, no input accepted.
Meanwhile I can issue commands in window2 but something went wrong.
Every input character echoed one keypress later. <CR> is affected too,
so I have to press some extra character after closing a command if
I want it to be executed. Xterm cut&paste counts 1 keypress.
While frank demo was running window2 worked perfectly.
The problems arised when frank_app stopped.
Then I start to remove modules pushed by frank demo.
At the moment I remove 'rtl_sched', the strange behavior ends. Both
windows accept input normally. Window1 echoes and reacts all buttons
what pressed during its frozen state.
Test2:
Now I start frank demo in window2. During its run window1 (the serial
console) is perfect. After frank_app stops, the window1 is frozen,
the tty input in window2 is delayed by one keypress.
After removing rtl_sched, everything is restored to ints normal state.
Test3:
I log in by ssh in window3. Frank demo starts in window3.
Window1 and window2 works well. Frank demo stops. The console is
frozen, the other windows delay tty input.
More precisely: When I removing modules, I can see, that every button I
press echoed at the next keypress. However when I press the CR after
'remove rtl_sched' it is echoed immediately with the final 'd' and
the command is executed without any delay.
Further investigation is in progress.
Gabor
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