Messages in this thread | | | Date | Mon, 18 May 2020 15:32:09 +0200 | From | Joerg Roedel <> | Subject | Re: [Regression] "iommu/amd: Relax locking in dma_ops path" makes tg3 ethernet transmit queue timeout |
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On Mon, May 18, 2020 at 05:06:45PM +0800, Kai-Heng Feng wrote: > Particularly, as soon as the spinlock is removed, the issue can be reproduced. > Function domain_flush_complete() doesn't seem to affect the status. > > However, the .map_page callback was removed by be62dbf554c5 > ("iommu/amd: Convert AMD iommu driver to the dma-iommu api"), so > there's no easy revert for this issue. > > This is still reproducible as of today's mainline kernel, v5.7-rc6.
Is there any error message from the IOMMU driver?
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