Rune Torgersen wrote: > [EMAIL PROTECTED] wrote: >> Hi >> >> I am trying to enable 1 GB of lowmem on a Freescale 8280. >> In arch/ppc this was easilly done by: >> CONFIG_ADVANCED_OPTIONS=y >> CONFIG_HIGHMEM_START=0xfe000000 >> CONFIG_LOWMEM_SIZE_BOOL=y >> CONFIG_LOWMEM_SIZE=0x40000000 >> CONFIG_KERNEL_START_BOOL=y >> CONFIG_KERNEL_START=0xa0000000 >> >> This does not work in arch/powerpc. CPU hangs as soon as init starts. >> Any ideas what to look at, what to change? >> >> The reason I want to do this is because I cannot get highmem support >> to work when using CONFIG_PREEMPT_RT. >> (hitting a bug_on in kmap_atomic) > > Scratch that. 1 GB lowmem works with vanilla 2.6.25.4, but > not at all with 2.6.25.4-rt[13]
Argh... Found it. Had to set CONFIG_TASK_SIZE to 0x80000000. Now it works in both vaniulla an d RT kernel. Highmem still doesn't work. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
