Hello Keqin,
it looks like the PS/2 driver is getting user input (filling the ring
buffer) but the input client (which is nitpicker in the demo scenario)
is not requesting the input from the driver in a timely manner. There
could be several causes for this:
* The nitpicker GUI server could not be started correctly. To see
whether the problem lies within nitpicker, you might try instrumenting
the code (located at os/src/server/nitpicker/'). For example,
add a PDBG message at the 'Nitpicker::Main::Main' constructor.
You might also instrument the 'Nitpicker::Main::handle_input'
function to see a message each time, the GUI server gets an input
event from the driver.
* There is a problem in Qemu's PS/2 device model. Depending on the
emulated hardware platform, some versions of Qemu have problems
with emulating certain peripherals. We have repeatedly experienced
such problems. Could you give a different Qemu version a try?
I recommend to build Qemu from source:
http://git.qemu.org/git/qemu.git
Btw, currently, I am using version 1.6.2, which works fine for me.
* The timer driver might not work correctly and thereby prevent
nitpicker from fetching input events. To see if the timer works,
please give 'make run/timer' a try. The corresponding run script
is located at 'os/run/timer.run'.
* The framebuffer driver might not work correctly, causing nitpicker
to get stuch. To see if the framebuffer driver is working on your
platform, please give 'make run/framebuffer' a try. The corresponding
run script is located at 'os/run/framebuffer.run'.
For further investigation, please provide us with the information about
which version of Genode and which base platform you are using. Also, the
complete log output would be helpful.
Cheers
Norman
On 03/23/2014 04:31 PM, Sun Keqin wrote:
> Hi all,
>
> I met a problem when I ran "demo" on Ubuntu which installed on
> MACBOOK PRO with VMWare Fusion. The mouse didn't show up and the log
> printed below. I have tried to change the size of Ring_buffer but it
> didn't work. What should I do to fix that?
>
> Thanks
>
>
> Keqin
>
>
> [init -> launchpad] --- entering main loop ---
> [init -> ps2_drv] C++ runtime: Ring_buffer<unsigned char, 1024>::Overflow
> [init -> ps2_drv] void* abort(): abort called
--
Dr.-Ing. Norman Feske
Genode Labs
http://www.genode-labs.com · http://genode.org
Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden
Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth
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