xen/pvh: increase early stack size
commit 7deecbda3026f5e2a8cc095d7ef7261a920efcf2 upstream. While booting on an AMD EPYC box the stack canary would detect stack overflows when using the current PVH early stack size (256). Switch to using the value defined by BOOT_STACK_SIZE, which prevents the stack overflow. Cc: <stable@vger.kernel.org> # 4.11 Signed-off-by: NRoger Pau Monné <roger.pau@citrix.com> Reviewed-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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