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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Status of "dma, x86, xen: reduce SWIOTLB usage in Xen guests" series
On 23/01/16 22:12, Sarah Newman wrote: > Greetings, > > We are having problems related to mptsas and "swiotlb buffer is full" with > the Xen4CentOS kernel (3.18). It looks like the last related work was > the series > http://lists.xenproject.org/archives/html/xen-devel/2014-12/msg00770.html > back at the end of 2014 and I'm wondering if there are any plans > to revive the series. I should try and revive it... > The error with swiotlb has caused us a massive amount of problems. We set > swiotlb=32768 on one server and are still seeing this error message on > occasion. If there's anything I can do to help please let me know. As a workaround, you can give dom0 more than 4 GiB and then the driver will set a 64-bit DMA mask. I don't think the memory needs to populated so something like dom0_mem=2GiB,max:4GiB might work. David _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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