Sending again. I have not received ACK/NAK after 1 week. Please cherry-pick this commit for v4.7 stable: commit 564471d2f2f1ddaf02119b8759813666db93abba Author: Chuck Lever <chuck.lever@xxxxxxxxxx> AuthorDate: Wed Jun 29 13:52:21 2016 -0400 Commit: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> CommitDate: Mon Jul 11 15:50:43 2016 -0400 xprtrdma: Create common scatterlist fields in rpcrdma_mw It addresses a bug in: commit d7a21c1bed54adcf96e1713019a6ad87e90fbbc3 Author: Chuck Lever <chuck.lever@xxxxxxxxxx> AuthorDate: Mon May 2 14:42:12 2016 -0400 Commit: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> CommitDate: Tue May 17 15:48:02 2016 -0400 xprtrdma: Reset MRs in frwr_op_unmap_sync() Which causes DMAR errors and an oops when using NFS/RDMA on x86_64 systems where the iommu is enabled. This was reported via IRC, I don't have the reporter's e-mail address. I was able to reproduce the issue, and confirm that 564471d2f2f1 fixes the problem on v4.7.2. (The actual fix is just two lines in that commit). -- Chuck Lever -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html