]> err.no Git - linux-2.6/commit
[PATCH] alpha: SMP IRQ routing fix
authorIvan Kokshaysky <ink@jurassic.park.msu.ru>
Sun, 4 Jun 2006 09:51:34 +0000 (02:51 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Mon, 5 Jun 2006 19:29:16 +0000 (12:29 -0700)
commitc7d2d28b9851d0ffc9924b0e36bac806d18ebf25
treef48fadad9a5cce62f7016cb48bc258928cb49114
parentba0c19ed6a61a96d4b42b81cb19d4bc81b5f728c
[PATCH] alpha: SMP IRQ routing fix

From: Ivan Kokshaysky <ink@jurassic.park.msu.ru>

After removal of fixup_cpu_present_map() function Alpha ended up with an empty
cpu_present_map, so secondary CPUs on SMP systems are not being started.

Worse, on some platforms we route interrupts to secondary CPUs using
cpu_possible_map which is still populated properly.  As a result, these
interrupts go nowhere so the machines like DP264 aren't able to boot even with
a primary CPU.

Fixed basically by s/cpu_present_mask/cpu_present_map/.

Thanks to Ernst Herzberg for reporting the bug and testing the fix.

Cc: Ernst Herzberg <list-lkml@net4u.de>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/alpha/kernel/alpha_ksyms.c
arch/alpha/kernel/process.c
arch/alpha/kernel/smp.c
arch/alpha/kernel/sys_titan.c
include/asm-alpha/smp.h