Hi Grant, On Thu, Jun 04, 2015 at 09:35:04AM -0700, Grant Zhang wrote: > Hi Neal, > > Unfortunately with the patch we still see the same stack trace. > Attached is the TcpExtTCPSACKReneging with the patch, captured with > 60 seconds interval. Its value is incremented at an similar speed as > before, about 30/minute. > > If you want to collect any other data, please feel free to let me know. >
We are also seeing similar WARN_ON stack in our kernel 4.0 testing. What is your net.ipv4.tcp_mtu_probing setting? I am currently testing some code changes and waiting for some more data. If it is 1 or 2, can you help to check whether turning it off (by setting it to 0) will stop the WARN_ON or not in your environment? Note that after setting it to 0, you may need to wait for a while (like a few mins) for the existing probing activities to quiet down before observing the WARN_ON output. Thanks, --Martin -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
