From: David Ahern <[email protected]> Date: Thu, 30 Apr 2015 20:58:07 -0400
> From: shamir rabinovitch <[email protected]> > > rdma_conn_param private data is copied using memcpy after headers such > as cma_hdr (see cma_resolve_ib_udp as example). so the start of the > private data is aligned to the end of the structure that come before. if > this structure end with u32 the meaning is that the start of the private > data will be 4 bytes aligned. structures that use u8/u16/u32/u64 are > naturally aligned but in case the structure start is not 8 bytes aligned, > all u64 members of this structure will not be aligned. to solve this issue > we must use special macros that allow unaligned access to those > unaligned members. > > Addresses the following kernel log seen when attempting to use RDMA: > > Kernel unaligned access at TPC[10507a88] > rds_ib_cm_connect_complete+0x1bc/0x1e0 [rds_rdma] > > Acked-by: Chien Yen <[email protected]> > Signed-off-by: shamir rabinovitch <[email protected]> > [Minor tweaks for top of tree by:] > Signed-off-by: David Ahern <[email protected]> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
