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[Bug 1851664] Re: qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we
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From: |
IndrasenaReddy Gali |
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Subject: |
[Bug 1851664] Re: qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's to guest machine |
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Date: |
Fri, 08 Nov 2019 15:48:37 -0000 |
After increasing dma_entry_limit limit no issue observed.
But ideal senario device is getting hung and recovery happening only
with host hard rebooting.
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https://bugs.launchpad.net/bugs/1851664
Title:
qemu-system-x86_64: "VFIO_MAP_DMA : -28" error when we attache 6 VF's
to guest machine
Status in QEMU:
Incomplete
Bug description:
We are trying to attach 6 VF's to the guest machine on 4.1.1 qemu emulator.
We are observing "VFIO_MAP_DMA : -28" error.
We are using w-bits=48 bits while lunching VM.
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