On 05/15/2012 10:54 PM, Linus Torvalds wrote: > On Sun, May 13, 2012 at 5:42 PM, John David Anglin <dave.anglin@xxxxxxxx> wrote: >> >> I successfully booted 3.4-rc7 with this change on rp3440 (4 cpu smp). My >> build also >> included cache and other fixes that are being discussed on the parisc list. > > Can somebody send the final patches with proper subject lines etc, > instead of hiding them in unrelated threads? I hate picking up patches > that I don't personally know from the middle of some random thread. > Okay, here they are: This is for PA-RISC: --- From: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx> Subject: [PATCH] parisc/CPU hotplug: Add missing call to notify_cpu_starting() The scheduler depends on receiving the CPU_STARTING notification, without which we end up into a lot of trouble. So add the missing call to notify_cpu_starting() in the bringup code. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx> Acked-and-Tested-by: Mikulas Patocka <mpatocka@xxxxxxxxxx> Acked-and-Tested-by: Tobias Ulmer <tobiasu@xxxxxxxx> Tested-by: John David Anglin <dave.anglin@xxxxxxxx> --- arch/parisc/kernel/smp.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-) diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 0bb1d63..4dc7b79 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -31,6 +31,7 @@ #include <linux/delay.h> #include <linux/bitops.h> #include <linux/ftrace.h> +#include <linux/cpu.h> #include <linux/atomic.h> #include <asm/current.h> @@ -295,8 +296,13 @@ smp_cpu_init(int cpunum) printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum); machine_halt(); - } + } + + notify_cpu_starting(cpunum); + + ipi_call_lock(); set_cpu_online(cpunum, true); + ipi_call_unlock(); /* Initialise the idle task for this CPU */ atomic_inc(&init_mm.mm_count); -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
