On Sun, Feb 10, 2013 at 09:51:37PM +0400, Phileas Fogg wrote:
quoted hunk ↗ jump to hunk
quoted
Phileas Fogg < phileas-fogg@mail.ru > writes:
Patch:
--- arch/powerpc/kernel/setup_64.c.old 2013-02-10 19:34:53.787366191 +0100
+++ arch/powerpc/kernel/setup_64.c 2013-02-10 19:35:38.834035478 +0100
initialise_paca(&boot_paca, 0);
setup_paca(&boot_paca);
+ /* Allow percpu accesses to "work" until we setup percpu data */
+ boot_paca.data_offset = 0;
+
This is correct.
quoted hunk ↗ jump to hunk
/* Initialize lockdep early or else spinlocks will blow */
lockdep_init();
/* Fix up paca fields required for the boot cpu */
get_paca()->cpu_start = 1;
- /* Allow percpu accesses to "work" until we setup percpu data */
- get_paca()->data_offset = 0;
But this is not.
As you said, they are different pacas, so we need to make sure both
boot_paca, and "the paca of the boot cpu" are initialised with
data_offset = 0.
I'll send a patch to sort it.
cheers