--- arch/x86/kernel/reboot.c

+++ arch/x86/kernel/reboot.c

@@ -461,6 +461,14 @@ static struct dmi_system_id __initdata p

DMI_MATCH(DMI_PRODUCT_NAME, "Macmini3,1"),

},

},

+ { /* Handle problems with rebooting on the iMac9,1. */

+ .callback = set_pci_reboot,

+ .ident = "Apple iMac9,1",

+ .matches = {

+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),

+ DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"),

+ },

+ },

{ }

};