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Altera_Forum's avatar
Altera_Forum
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15 years ago

The problem with custom board. (Exception access user space)

Hello everyone, I have trying to run Linux on my custom board. But, Exception occurs when you access the user space. start_kernel () is passed. kernel_init () will call the initializat...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi mschnell,

I really appreciate your advice and explanation.That is very helpful.

The reason why we tried to use Futiex is just it is installed in the Menu Config by default.

Do you mind if I change the topics?

I proceeded the debug after I remove the Futex.

And then, An exception occurred at a user-space access(__clear_user() called).

I've already replaced custom_fpga.h.

Do you think there are anything of what I have to do ?

I appreciate if you reply me.