* [bugreport] stability issue with many altname
@ 2022-03-04 15:44 George Shuklin
0 siblings, 0 replies; only message in thread
From: George Shuklin @ 2022-03-04 15:44 UTC (permalink / raw)
To: netdev
Recently there was a feature in kernel allowing alternative names for
network interfaces
(https://lwn.net/Articles/794289/)
I decided to give it a try:
while true; do ip link property add altname `uuidgen` dev lo; done
Within 50 seconds I got my machine completely unavailable, and ip start
to show strange errors on any input:
!!!Deficit 564, rta_len=25954
!!!Deficit 1324, rta_len=0
!!!Deficit 16216, rta_len=25911
!!!Deficit 12288, rta_len=25144
!!!Deficit 2044, rta_len=24884
Moreover, many processes in the system got to 100% cpu use: sudo,
cups-browser, ovs-vswitchd.
I thing there should be some kind of limit on number of altnames...
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2022-03-04 15:44 [bugreport] stability issue with many altname George Shuklin
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