On Sat, Feb 20, 2021 at 12:08:25AM +0530, Krishnamraju Eraparaju wrote: > On Friday, February 02/19/21, 2021 at 11:39:04 +0100, Greg KH wrote: > > On Fri, Feb 19, 2021 at 03:25:12PM +0530, Krishnamraju Eraparaju wrote: > > > Hi All, > > > > > > Below commits needs to be backported to 5.10.y kernels to avoid NULL > > > pointer deref panic(while trying to access 'numa_node' from NULL > > > 'dma_device'), @ Line: > > > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/drivers/nvme/host/rdma.c?h=v5.10.17#n863) > > > > > > commit:22dd4c707673129ed17e803b4bf68a567b2731db > > > commit:8ecfca68dc4cbee1272a0161e3f2fb9387dc6930 > > > > So just these 2 commits? In which order? > > > > > The panic is observed at nvme host(provider/transport being SoftiWARP), > > > while perfroming "nvme discover". > > > > > > Hence, please backport the below patch series to '5.10.y' kernel. > > > "https://lore.kernel.org/linux-iommu/20201106181941.1878556-1-hch@xxxxxx/"; > > > > What are the git commit ids of these patches in Linus's tree and have > > you tested them to ensure that they work? Why this 10 patch series and > > not the 2 above? Or is this a different request? > > > > confused, > Hi Greg, > > Sorry for the confusion, I didn't know that I can request for the > backport of selected patches in a patch series. > As I don't have much background & testing feasability of other patches, > I request you to backport only below two patches(same order as below): > > commit#1:8ecfca68dc4cbee1272a0161e3f2fb9387dc6930 > RDMA: Lift ibdev_to_node from rds to common code > author: Christoph Hellwig <hch@xxxxxx> > > commit#2:22dd4c707673129ed17e803b4bf68a567b2731db > nvme-rdma: Use ibdev_to_node instead of dereferencing ->dma_device > author: Christoph Hellwig <hch@xxxxxx> > > And I belive these two patches has no dependency with other patches in > the series. I've tested, it's working fine. Now queued up, thanks. greg k-h
