Re: Genode + panda es (rev-b2),

2012-11-30 Thread Martin Stein
Hey i'm sorry that this answer comes a little delayed.

On 11/18/2012 06:01 PM, Ali Nehzat wrote:

 2. If I close any of the children applications using the 'x' button in
 launchpad I get the error below and everything hangs. I had a little
 look at the code and the forums and while I understand the current
 state of affairs I was wondering if there is a way around this problem
 such that way things wouldn't hang so abruptly?
 
 unmapping of managed dataspaces not yet supported
 no RM attachment (READ pf_addr=400fe990 pf_ip=80018bb8 from 24)Assertion 
 failed:
  c
   File: /home/ali/tools/genode/base-hw/src/core/kernel.cc:1991
   Function: void Kernel::do_submit_signal(Kernel::Thread*)

I just wanted to add a reference:
https://github.com/genodelabs/genode/issues/396

This issue exactly targets your problem.


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Re: Genode + panda es (rev-b2),

2012-11-19 Thread Norman Feske
Hi Ali,

thanks for giving Genode a try and for your encouraging words!

 1. I had to add REPOSITORIES += $(GENODE_DIR)/dde_linux to
 etc/build.conf in order to get everything to build properly, otherwise
 make would throw an error at devices/usb. Is this correct?

This is correct. Thanks for pointing this out. This detail is certainly
missing in our documenation.

 2. If I close any of the children applications using the 'x' button in
 launchpad I get the error below and everything hangs. I had a little
 look at the code and the forums and while I understand the current
 state of affairs I was wondering if there is a way around this problem
 such that way things wouldn't hang so abruptly?
 
 unmapping of managed dataspaces not yet supported
 no RM attachment (READ pf_addr=400fe990 pf_ip=80018bb8 from 24)Assertion 
 failed:
  c
   File: /home/ali/tools/genode/base-hw/src/core/kernel.cc:1991
   Function: void Kernel::do_submit_signal(Kernel::Thread*)

You are using the 'base-hw', platform, which is still in an experimental
stage and pretty much work in progress. For the Pandaboard, I would
currently recommend to use 'foc_panda' because it is more mature. You
will have to issue 'make prepare' in the 'base-foc' repository to use
it. All the other steps should be the same.

 3. Nitpicker gets noticeably unresponsive when a new process is being
 launched. What's the reason behind this in layman's terms? My hunch is
 that this is due to nitpicker and not related to the core but I just
 wanted a bit more detail if possible please.

At the start time of launchpad, the program will generate a bunch of
textures for GUI (i.e., for the window background). This takes a bit of
time. Because in the current version of base-hw on the Pandaboard,
caches are not enabled, this procedure takes much longer than normally.
However, this will change soon: ;-)

  https://github.com/genodelabs/genode/issues/468
  https://github.com/genodelabs/genode/issues/466

Those patches are not yet merged into mainline. We could observe that
they remedy the issue. Until the patches are merged, you may give
'base-foc' a try to see how well the interactive demo can perform on the
Pandaboard.

 4. While probably not related to genode, does anyone know how I can
 get the reset button on the pandaboard to work properly? Right now it
 looks like it resets the board, but U-boot does not come back up
 again. I'm currently using the precompiled version from your
 repository.

This is new to me (maybe because I mainly used 'panda_foc' for the
Pandaboard).

Have fun with further exploring Genode and thanks for the feedback!

Cheers
Norman

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Re: Genode + panda es (rev-b2),

2012-11-19 Thread Сергей Грехов

 4. While probably not related to genode, does anyone know how I can
 get the reset button on the pandaboard to work properly? Right now it
 looks like it resets the board, but U-boot does not come back up
 again. I'm currently using the precompiled version from your
 repository.

For some (yet, unknown) reasons, reset on Pandaboard ES is working properly 
only for some models of SD cards. Try to use some other SD cards: we found that 
with Kingmax 4Gb SDHC reset button works properly and, for example, with 
Transcend 4Gb SDHC does not work (U-boot does not come back up again).


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Re: Genode + panda es (rev-b2),

2012-11-19 Thread Martin Stein
Hi Ali,

 4. While probably not related to genode, does anyone know how I can
 get the reset button on the pandaboard to work properly? Right now it
 looks like it resets the board, but U-boot does not come back up
 again. I'm currently using the precompiled version from your
 repository.

On my PandaBoard A2 the reset doesn't work fine too. I always have to
trigger the reset button twice to get U-Boot restarted. The first
attempt might restart the board but i get no feedback from U-Boot at the
UART.

Greets,
Martin


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