i am trying to develop a kernel utility to perform RDMA read/write operations<br>i am facing a problem with memory regiatration in it.<br><br>my code looks like.........<br><br>u64 *addr_array;<br><br>addr_array = kmalloc(sizeof(u64),GFP_KERNEL); <br>                        //i am using only one page buffer<br><br>test->mem = kmalloc(4096,GFP_KERNEL);<br>         // buffer on which RDMA_READ is to be performed<br><br>test->fmr = ib_alloc_fmr(test->pd,IB_ACCESS_LOCAL_WRITE |<br>                                        IB_ACCESS_REMOTE_READ
 |<br>                                        IB_ACCESS_REMOTE_WRITE,<br>                                fmr_attr); //fmr_attr is intialised properly<br><br>addr_array[0] =  virt_to_phys(test->mem) ;<br>ret = ib_map_phys_fmr(test->fmr,addr_array[0],1,(u64)test->mem);<br><br><br>All these operations are not generating any errors<br>But when i pass this address (addr_array[0]) as the remote address, the RDMA_READ operation on this address is generating IB_WC_REM_ACCESS_ERROR completion.<br><br>am i missing anything in the process of registering the memory?????<br><br><br>Thanks n regards<br>K.Mahesh<br><p> Send
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