* Heiko Schumann | 2013-05-14 13:04:34 [+0200]: >Hello, Hi, >i´ve a ppc32 processor with 2 GB Ram. I use a 3.8.4 Kernel with vendor >and 3.8.4rt2 patch. To support 2 GB of RAM i´ve to set the kernel >option HIGHMEM. But this option is not available when PREEMPT_RT_FULL >is selected. >Is there a workaround or additional patch to use more than 1GB RAM on >a ppc32 with the option PREEMPT_RT_FULL? No, we have only arm and x86 so far. Either try to do the same thing on Power that has been on ARM & x86. A workaround would be to adjust lowmem, virtual base and user stack. That means your userland wouldn't have 3GiB virtual address space but the kernel could access 2GiB. Something like CONFIG_PAGE_OFFSET=0x40000000 CONFIG_KERNEL_START=0x40000000 CONFIG_TASK_SIZE=0x40000000 should work. > >Thanks Sebatian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
