Commit 3b1bdf4e authored Dec 08, 2006 by Shaohua Li Committed by Linus Torvalds Dec 08, 2006

[PATCH] CPU hotplug broken with 2GB VMSPLIT



In VMSPLIT mode, kernel PGD might have more entries than user space.

Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent c642f9e0

arch/i386/kernel/smpboot.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1118,7 +1118,7 @@ static int __cpuinit __smp_prepare_cpu(int cpu)

		/* init low mem mapping */
		clone_pgd_range(swapper_pg_dir, swapper_pg_dir + USER_PGD_PTRS,
		KERNEL_PGD_PTRS);
		min_t(unsigned long, KERNEL_PGD_PTRS, USER_PGD_PTRS));
		flush_tlb_all();
		schedule_work(&info.task);
		wait_for_completion(&done);