mikhail wrote: > On Sat, 2017-12-09 at 23:14 +0900, Tetsuo Handa wrote: > > Under OOM lockup situation, kernel messages can unlikely be saved to syslog > > files, for writing to files involves memory allocation. Can you set up > > netconsole or serial console explained at > > http://events.linuxfoundation.org/sites/events/files/slides/LCJ2014-en_0.pdf ? > > If neither console is possible, it would become difficult to debug. > > netconsole works only within local network? destination ip may be from > another network? netconsole can work with another network. (step 1) Verify that UDP packets are reachable. You can test with # echo test > /dev/udp/213.136.82.171/6666 if you are using bash. (step 2) Verify that you specified gateway's MAC address rather than target host's MAC address. "ff:ff:ff:ff:ff:ff" suggests that netconsole is unable to resolve correct MAC address. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
