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On 20.08.2017 08:17, Neil Bothwick wrote: |
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> I'd try again with a clean kernel tree but using make oldconfig. It's |
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> possible the automagic stuff answered n somewhere where you need a y. |
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As https://wiki.gentoo.org/wiki/Kernel/Upgrade/en#make_silentoldconfig |
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describes, "make silentoldconfig" (which I used) asks for a decision for |
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all newly introduced kernel options. |
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Most default to "no" anyway, but I have painstakingly read each of the |
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new descriptions to figure out if I might need the options. I've done it |
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several times, and I still cannot figure out if I missed anything. Here |
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is a subset of the options I have configured, perhaps you can spot if |
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something is amiss? Of course, grep VIRT is not exactly the most precise |
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approach... |
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### Server 1 (high volume traffic) |
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$ grep VIRT .config | sort |
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CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y |
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CONFIG_BLK_MQ_VIRTIO=y |
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# CONFIG_DEBUG_VIRTUAL is not set |
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# CONFIG_DMA_VIRT_OPS is not set |
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CONFIG_DMA_VIRTUAL_CHANNELS=y |
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# CONFIG_DRM_VIRTIO_GPU is not set |
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# CONFIG_FB_VIRTUAL is not set |
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CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y |
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CONFIG_HW_RANDOM_VIRTIO=y |
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CONFIG_PARAVIRT_CLOCK=y |
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# CONFIG_PARAVIRT_DEBUG is not set |
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CONFIG_PARAVIRT_SPINLOCKS=y |
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# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set |
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CONFIG_PARAVIRT=y |
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CONFIG_SCSI_VIRTIO=y |
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# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set |
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# CONFIG_VIRT_DRIVERS is not set |
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CONFIG_VIRTIO_BALLOON=m |
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# CONFIG_VIRTIO_BLK_SCSI is not set |
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CONFIG_VIRTIO_BLK=y |
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CONFIG_VIRTIO_CONSOLE=y |
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# CONFIG_VIRTIO_INPUT is not set |
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# CONFIG_VIRTIO_MMIO is not set |
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CONFIG_VIRTIO_NET=y |
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CONFIG_VIRTIO_PCI_LEGACY=y |
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CONFIG_VIRTIO_PCI=y |
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CONFIG_VIRTIO=y |
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CONFIG_VIRT_TO_BUS=y |
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# CONFIG_VIRTUALIZATION is not set |
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I have since updated a second virtual Gentoo server to Kernel 4.12. This |
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server sees a lot less network traffic, but after a couple of hours it |
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runs into the same timeouts when attempting to contact resolvers. Kernel |
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settings include: |
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|
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### Server 2 (low volume traffic) |
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$ grep VIRT .config | sort |
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CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y |
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CONFIG_BLK_MQ_VIRTIO=y |
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# CONFIG_DEBUG_VIRTUAL is not set |
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# CONFIG_DMA_VIRT_OPS is not set |
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CONFIG_DMA_VIRTUAL_CHANNELS=y |
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# CONFIG_DRM_VIRTIO_GPU is not set |
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# CONFIG_FB_VIRTUAL is not set |
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CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y |
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CONFIG_HW_RANDOM_VIRTIO=y |
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CONFIG_PARAVIRT_CLOCK=y |
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# CONFIG_PARAVIRT_DEBUG is not set |
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CONFIG_PARAVIRT_SPINLOCKS=y |
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# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set |
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CONFIG_PARAVIRT=y |
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CONFIG_SCSI_VIRTIO=y |
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# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set |
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# CONFIG_VIRT_DRIVERS is not set |
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CONFIG_VIRTIO_BALLOON=m |
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# CONFIG_VIRTIO_BLK_SCSI is not set |
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CONFIG_VIRTIO_BLK=y |
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CONFIG_VIRTIO_CONSOLE=y |
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# CONFIG_VIRTIO_INPUT is not set |
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# CONFIG_VIRTIO_MMIO is not set |
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CONFIG_VIRTIO_NET=y |
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CONFIG_VIRTIO_PCI_LEGACY=y |
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CONFIG_VIRTIO_PCI=y |
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CONFIG_VIRTIO=y |
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CONFIG_VIRT_TO_BUS=y |
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CONFIG_VIRTUALIZATION=y |
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As you can see, I used CONFIG_VIRTUALIZATION=y in this case, even though |
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I believe this only affects running as a VM host. I carried this option |
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over from the previous 4.9 kernel. |
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-Ralph |
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