On Wed, May 19, 2021 at 08:01:29AM +0000, Anatoli N.Chechelnickiy wrote: > Hi > > I'm sorry to report about regression in 5.10.37 > > with > > CONFIG_IOMMU_IOVA=y > CONFIG_IOMMU_API=y > CONFIG_IOMMU_SUPPORT=y > CONFIG_OF_IOMMU=y > CONFIG_INTEL_IOMMU=y > CONFIG_INTEL_IOMMU_SVM=y > CONFIG_INTEL_IOMMU_DEFAULT_ON=y > CONFIG_INTEL_IOMMU_FLOPPY_WA=y > > and iommu=on in grub.cfg > > > All my dell r340 and all lenovo servers won't boot any more. Just black > screen at once. > > > with intel_iommu=on iommu=pt DELL R240 and Lenovo SR350 cat boot > > Older Lenovo cannot boot even with "intel_iommu=on iommu=pt" only with > iommu=off in grub > > With iommu=off in grub all servers are booting well > > With 5.4.36 do not have this problem > > > tested last 4 days with 10+ different servers( Should be fixed with 5.10.38. If not, please let us know. thanks, greg k-h
