Hi- I’ve been experimenting with adding bi-directional RPC/RDMA support on both the client and server side. The problem is that both modules need to be loaded before the backchannel transports are registered and can be used by the upper layers. If I add a couple of request_module() call sites I get this: > WARNING: Module /lib/modules/4.1.0-rc2-00011-g1460752/kernel/net/sunrpc/xprtrdma/xprtrdma.ko ignored, due to loop > WARNING: Loop detected: /lib/modules/4.1.0-rc2-00011-g1460752/kernel/net/sunrpc/xprtrdma/svcrdma.ko needs xprtrdma.ko which needs svcrdma.ko again! > WARNING: Module /lib/modules/4.1.0-rc2-00011-g1460752/kernel/net/sunrpc/xprtrdma/svcrdma.ko ignored, due to loop > Installing kernel boot image ... > Constructing initramdisk ... > ERROR: modinfo: could not find module svcrdma This isn’t a problem for TCP because both client and server side TCP socket support are built into the sunrpc.ko module. The client and server RDMA transport support are in separate modules. A straightforward way to address this would be to combine xprtrdma.ko with svcrdma.ko. Any thoughts on this approach? -- Chuck Lever chuck[dot]lever[at]oracle[dot]com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
