grsecurity forums

I'm sorry in advace, but I can't speak very well in English.
So I practise working with grsecurity. At first I set it LOW mode. It worked very well, I didn't work with chpax. Then I set it MEDIUM mode. In this case some programs didn't start (because of mprotect), but I corrected it with chpax. Then I set grsecurity High mode and the linux stop at the boot with "Kernel panic". But I don't know what I should correct this problem.
What should I do?

>Then I set grsecurity High mode and the linux stop at the boot with "Kernel
>panic". But I don't know what I should correct this problem.
>What should I do?

Tell us the exact error message you're getting :^P.

[<c88257d0>]
.
.
.
Code: c0 0f 44 etc.
<0>Kernel panic - not syncing: Fatal exception in interrupt

johnni21 wrote:[<c88257d0>]
.
.
.
Code: c0 0f 44 etc.
<0>Kernel panic - not syncing: Fatal exception in interrupt

well, that's not a lot of info . we need your exact kernel/grsec versions and the full crash log, if it's a 2.4 kernel, then you'll have to run the crash info through ksymoops as well to map addresses to symbolic names. having your kernel's .config would also be helpful.