On 5/18/2012 2:05 AM, Bob Ciotti wrote: > > > I'm seeing lots of these messages in SM log: > > May 17 22:36:04 947774 [DA234710] 0x01 -> log_trap_info: Received > Generic Notice type:1 num:131 (Flow Control Update watchdog timer > expired) Producer:2 (Switch) from LID:444 Port 5 TID:0x0000000000000025 > > the referenced port is a switch to HCA link. > > I've seen this in cases where there was bad hardware. Spec says failure > in flow control machine on other end. But lets assume hardware was good. > When could this occur?
Do OperationalVLs match on both sides of the link ? Are you using/configuring QoS ? > Only in the case of FW bug? I don't think flow control is performed by FW. > Any tunable's that might impact this? No IBA standard ones AFAIK. Who's the HCA vendor ? -- Hal > bob > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
