On 04/02/12 12:51, Or Gerlitz wrote: > On 4/2/2012 2:48 PM, Bart Van Assche wrote: >> The two ports are connected back-to-back to another mlx4 HCA. I >> noticed this behavior change since opensm stopped working after >> rebooting into 3.4-rc1. > > can you add these prints and send me the output after attempting to cat > the rate file?
Some additional info: - This issue only occurs if the back-to-back connected system is down, not if it is running. - The output I get with the other system down is: # cat /sys/class/infiniband/mlx4_0/ports/1/link_layer InfiniBand # dmesg -c >/dev/null # cat /sys/class/infiniband/mlx4_0/ports/1/rate cat: /sys/class/infiniband/mlx4_0/ports/1/rate: Invalid argument # dmesg -c ib_link_query_port active_speed 7 rate_show ret 0 for ib_query_port dev mlx4_0 port 1 link 1 Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
