Messages in this thread Patch in this message | | | Date | Tue, 15 Apr 2008 23:28:33 +0200 | From | Ingo Molnar <> | Subject | Re: [bug] SLUB + mm/slab.c boot crash in -rc9 |
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* Christoph Lameter <clameter@sgi.com> wrote:
> On Tue, 15 Apr 2008, Ingo Molnar wrote: > > > > static DEFINE_PER_CPU(char, dummy)[10000]; > > > > what's the guarantee that it's at the end of the section? I'd like > > to pad the per cpu areas at their end. (doubling their size is a > > good way to achieve that) > > No guarantee. Its up to the linker. Sorry. We could add a new > percpu.last section but that requires a number of changes to linking.
ah. Then the patch below should do the trick, right?
Ingo
-------------> Subject: larger: percpu From: Ingo Molnar <mingo@elte.hu> Date: Tue Apr 15 23:13:18 CEST 2008
Signed-off-by: Ingo Molnar <mingo@elte.hu> --- arch/x86/kernel/vmlinux_32.lds.S | 1 + 1 file changed, 1 insertion(+)
Index: linux/arch/x86/kernel/vmlinux_32.lds.S =================================================================== --- linux.orig/arch/x86/kernel/vmlinux_32.lds.S +++ linux/arch/x86/kernel/vmlinux_32.lds.S @@ -186,6 +186,7 @@ SECTIONS __per_cpu_start = .; *(.data.percpu) *(.data.percpu.shared_aligned) + . = . + 65536; __per_cpu_end = .; } . = ALIGN(PAGE_SIZE);
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