This message can be ignored. This bogus "testing the buffer" message is something that inadvertently got into upstream code via commit:
13d0f7b814d9 net/bpfilter: fix dprintf usage for /dev/kmsg
This message is fixed by the following commit:
41c55ea6c2a7 net/bpfilter: remove superfluous testing message
The fix will be in the Ubuntu kernel version: Ubuntu-azure-5.3-5.3.0-1023.24
This message can be ignored. This bogus "testing the buffer" message is something that inadvertently got into upstream code via commit:
13d0f7b814d9 net/bpfilter: fix dprintf usage for /dev/kmsg
This message is fixed by the following commit:
41c55ea6c2a7 net/bpfilter: remove superfluous testing message
The fix will be in the Ubuntu kernel version: Ubuntu- azure-5. 3-5.3.0- 1023.24