Messages in this thread | | | Date | Wed, 29 Dec 2021 13:27:58 +0000 (GMT) | From | Holger Kiehl <> | Subject | bpfilter: write fail messages with 5.15.x and centos 7.9.2009 |
| |
Hello,
I just upgraded the kernel from 5.10.x to 5.15.12 on an old Centos 7.9.2009 server. The kernel is build on a new fedora 35 system via 'make binrpm-pkg'. With this I see the following errors:
[ 232.140766] bpfilter: Loaded bpfilter_umh pid 6327 [ 232.152144] bpfilter: write fail -32 [ 232.187175] bpfilter: Loaded bpfilter_umh pid 6330 [ 232.198540] bpfilter: write fail -32 [ 232.234604] bpfilter: Loaded bpfilter_umh pid 6332 [ 232.245916] bpfilter: write fail -32 [ 232.281883] bpfilter: Loaded bpfilter_umh pid 6337 [ 232.293222] bpfilter: write fail -32 [ 232.335798] bpfilter: Loaded bpfilter_umh pid 6380 [ 232.347157] bpfilter: write fail -32 [ 244.411821] bpfilter: Loaded bpfilter_umh pid 6712 [ 244.423216] bpfilter: write fail -32
These appear as soon as something is done via iptables (setting something or just viewing). Is this something I need to worry about? Under 5.10.81 I did not see these messages.
In Jul 2020 I see a similar report 'bpfilter logging write errors in dmesg', but could not find a solution.
Any hint what I can do to fix this?
Thanks, Holger
| |