On the 15-07-2009 at 17:58pm, Vikas Gorur wrote: > Do you still have the core file? Can you give us the value of > op_ret in frame 0? ("frame 0; print op_ret"). Sure do, here's the output: #0 client_readv_cbk (frame=0x2aaaac00bb10, hdr=0x9629d40, hdrlen=<value optimized out>, iobuf=0x0) at client-protocol.c:4319 4319 vector.iov_base = iobuf->ptr; (gdb) frame 0 #0 client_readv_cbk (frame=0x2aaaac00bb10, hdr=0x9629d40, hdrlen=<value optimized out>, iobuf=0x0) at client-protocol.c:4319 4319 vector.iov_base = iobuf->ptr; (gdb) print op_ret $1 = 4096 Thanks, Jeff.