Epyc VM to VM networking slow
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@dinhngtu What is the exact kernel patch that is required for the
xen-platform-pci-bar-uc=falsefix to work on a Linux guest? We're looking at potentially compiling our own kernel with thexen-netfront.cpatch, and we would like to see about adding the other part of the Kernel code needed for the Grant table fix. -
Ping @TeddyAstie
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@Maelstrom96 said in Epyc VM to VM networking slow:
What is the exact kernel patch that is required for the
xen-platform-pci-bar-uc=falsefix to work on a Linux guest? We're looking at potentially compiling our own kernel with thexen-netfront.cpatch, and we would like to see about adding the other part of the Kernel code needed for the Grant table fix.Patch is in Linux since 5.19-rc. You also find it in some stable branches like 5.15.
Otherwise, you can check this patch https://lore.kernel.org/xen-devel/ea4945df138527ed63e711cb77e3b333f7b3a4c9.1751633056.git.teddy.astie@vates.tech/
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