Kumar Gala wrote: > On May 21, 2008, at 4:24 PM, Rune Torgersen wrote: > >> Kumar Gala wrote: >>> On May 21, 2008, at 3:55 PM, Rune Torgersen wrote: >>>> Argh... Found it. Had to set CONFIG_TASK_SIZE to 0x80000000. Now it >>>> works in both vaniulla an d RT kernel. >>> >>> We should really add some sanity check on CONFIG_TASK_SIZE vs >>> KERNEL_START. >> >> Something like this? >> Wording sould probablyy be a bit different/cleare. >> >> diff --git a/include/asm-powerpc/processor.h >> b/include/asm-powerpc/processor.h >> index fd98ca9..72e0e3f 100644 >> --- a/include/asm-powerpc/processor.h >> +++ b/include/asm-powerpc/processor.h >> @@ -81,6 +81,10 @@ extern struct task_struct *last_task_used_altivec; >> extern struct task_struct *last_task_used_spe; >> >> #ifdef CONFIG_PPC32 >> + >> +#if CONFIG_TASK_SIZE > CONFIG_KERNEL_START >> +#error User TASK_SIZE overlaps with KERNEL_START address >> +#endif >> #define TASK_SIZE (CONFIG_TASK_SIZE) >> >> /* This decides where the kernel will search for a free chunk of vm >> > > something like that would be good. is there really anything PPC32 > specific about it? > Probably not. Could this be done in the Kconfig file instead?. Don't know if Kconfig supports doing a comparison.
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