On Fri, Feb 01, 2013 at 02:57:43PM -0800, Andy Lutomirski wrote: > Current kernels print this on my Dell server: > > ------------[ cut here ]------------ > WARNING: at drivers/iommu/intel_irq_remapping.c:542 > intel_enable_irq_remapping+0x7b/0x27e() > Hardware name: PowerEdge R620 > Your BIOS is broken and requested that x2apic be disabled > This will leave your machine vulnerable to irq-injection attacks > Use 'intremap=no_x2apic_optout' to override BIOS request > [...] > Enabled IRQ remapping in xapic mode > x2apic not enabled, IRQ remapping is in xapic mode > > This is inconsistent with itself -- interrupt remapping is *on*. > > Fix the mess by making the warnings say what they mean and my making > sure that compatibility format interrupts (the dangerous ones) are > disabled if x2apic is present regardless of BIOS settings.
Yeah, this fixes the problem on our end too. Thank Andy! Cheers, Don -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
