wubo, > In iscsi_if_rx func, after receiving one request through > iscsi_if_recv_msg func, iscsi_if_send_reply will be called to try to > reply the request in do-loop. If the return of iscsi_if_send_reply > func return -EAGAIN all the time, one deadlock will occur. > > For example, a client only send msg without calling recvmsg func, then > it will result in the watchdog soft lockup. The details are given as > follows, > Signed-off-by: Bo Wu <wubo40@xxxxxxxxxx> > Reviewed-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx> > Reviewed-by: Lee Duncan <LDuncan@xxxxxxxx> I haven't seen a Reviewed-by: from Lee on this patch. -- Martin K. Petersen Oracle Linux Engineering