[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] I cannot get any message from domU by console / pv_ops domU kernel crashes with xen_create_contiguous_region failed
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx wrote on 12/22/2009 09:32:03 AM: > > > (early) [ 0.000000] Kernel panic - not syncing: > > > <3>xen_create_contiguous_region failed > > This implies you did not have enough DMA32 memory in the hypervisor > for the guest. > Meaning at least 64MB. When you launch your guest, run 'xm info' and > see what you have. The latest > from xen-unstable tries to have _at least_ that amount of memory available > for the guest. Here is what I see: > > free_memory : 3938 > node_to_cpu : node0:0-1 > node_to_memory : node0:3938 > node_to_dma32_mem : node0:3514 > > The node_to_dma32_mem needs to have at least 64. I'm using Xen 3.4.2. xm info doesn't have a 'node_to_dma32_mem' entry at all. I wasn't setting dom0 memory constraints via grub before, so I tried adding dom0_mem=512M. That makes free_memory=3533 on my system. Still get the same panic. > Or you can add 'iommu=off' to your boot arguments that should > disable the SWIOTLB. Is iommu=off for dom0 or domU boot args. If it's dom0, is it for the hypervisor or the kernel? I've tried adding it to all 3 places, but I still get the same panic message. -Mike _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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