On Wed, Mar 22, 2017 at 11:41:57PM -0400, Bruce Momjian,,, wrote:
> > OK, I am running this after setting flow control on/default on the
> > switch and Debian, and rebooting:
> >
> > daemon -- sh -c "while :; do date;ethtool -S eth0| grep flow_control;
> > sleep 1;done > /root/ethtool"
> >
> > I will report back with the relevant logging lines once it hangs again.
>
> OK, I have results of a hang after 24 hours of uptime. The hangs are
> listed here via dmesg -T:
>
> http://momjian.us/expire/eth0/dmesg.txt
>
> showing the watchdog warning/hang/reset at 23:01 and port hang/reset at
> 23:10.
>
> I have also produced the ethtool -S output every second for the entire
> 24-hour period, gziped, at:
>
> http://momjian.us/expire/eth0/ethtool.gz
>
> You will see reception of a large number of rx_flow_control_xoff
> messages about 50 minutes before the hangs, and just before the hangs.
I had four more 14 hours later so I created new files that also include
the earlier ones:
http://momjian.us/expire/eth0/dmesg2.txt
http://momjian.us/expire/eth0/ethtool2.gz
The last two dmesg lines at 13:29 are me turning of flow control on the
switch so they are not problems.
--
Bruce Momjian <br...@momjian.us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ As you are, so once was I. As I am, so you will be. +
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