Messages in this thread | | | Date | Thu, 7 Mar 2013 23:27:12 -0800 | Subject | Re: 3.9-rc1: crash kernel panic - not syncing: Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer | From | Yinghai Lu <> |
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On Thu, Mar 7, 2013 at 11:20 PM, WANG Chao <chaowang@redhat.com> wrote: >> >> looks like your system DO have DMAR table, please enable dmar >> remapping in your kernel config. > > I've already got following config: > CONFIG_DMAR_TABLE=y > CONFIG_INTEL_IOMMU=y > CONFIG_IRQ_REMAP=y > > but I don't have intel_iommu=on in kernel cmdline. IIRC, iommu will prevent > 2nd kernel from booting ...
Did you put intel_iommu=on on first and second cpu both?
Thanks
Yinghai
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