Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95D98C433EF for ; Wed, 29 Dec 2021 13:35:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236707AbhL2Nf0 (ORCPT ); Wed, 29 Dec 2021 08:35:26 -0500 Received: from ofcsgdbm.dwd.de ([141.38.3.245]:40387 "EHLO ofcsgdbm.dwd.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229554AbhL2NfZ (ORCPT ); Wed, 29 Dec 2021 08:35:25 -0500 X-Greylist: delayed 446 seconds by postgrey-1.27 at vger.kernel.org; Wed, 29 Dec 2021 08:35:25 EST Received: from localhost (localhost [127.0.0.1]) by ofcsg2dn4.dwd.de (Postfix) with ESMTP id 4JPBzf5pHjz3xgm for ; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=dwd.de; h= content-type:content-type:mime-version:message-id:subject :subject:from:from:date:date:received:received:received:received :received:received:received:received; s=dwd-csg20210107; t= 1640784478; x=1641994079; bh=3lQyP9gEuAL2BkggA1WaTo0iKwmbWDEBUd/ b6mww0Y4=; b=sAIvqIvunM01xMJsz6Vmxr7LICYiztxDyzRUUlCTUUNaAqmW44d kXcbRgKH9yNnC3/4Dm0Y730psVp712sfNdjfeYIEHgGVlEKX9ETC7Hbx4L046TOX 26xbparZNpsgNMPy7aqCRd+OhbZUX/Ettd7CHYxSiaDBOf0g1nVgKd86jMwrC9wI DyCIgshqPbrAB1NtZQNCsmMLxQc71mZtpOZcqhcXCVBXsH8KBR6A+0OoFwY9dwmi SrYm3JwqnKQqTQliN7tTqFA0/D8nZuJBJ79cJm9aXohSyAEAia2ExyQbj2Q7RZQx nteOC59m5ASghAmezBvDYaOJGiOs1KjzWBw== X-Virus-Scanned: by amavisd-new at csg.dwd.de Received: from ofcsg2cteh1.dwd.de ([172.30.232.65]) by localhost (ofcsg2dn4.dwd.de [172.30.232.27]) (amavisd-new, port 10024) with ESMTP id HXJeyvNEnXx9 for ; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) Received: from ofcsg2cteh1.dwd.de (unknown [127.0.0.1]) by DDEI (Postfix) with ESMTP id 8A344C9014AE for ; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) Received: from ofcsg2cteh1.dwd.de (unknown [127.0.0.1]) by DDEI (Postfix) with ESMTP id 7EFDDC9014A8 for ; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) X-DDEI-TLS-USAGE: Unused Received: from ofcsgdbm.dwd.de (unknown [172.30.232.27]) by ofcsg2cteh1.dwd.de (Postfix) with ESMTP for ; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) Received: from ofcsgdbm.dwd.de by localhost (Postfix XFORWARD proxy); Wed, 29 Dec 2021 13:27:58 -0000 Received: from ofcsg2dvf2.dwd.de (ofcsg2dvf2.dwd.de [172.30.232.11]) by ofcsg2dn4.dwd.de (Postfix) with ESMTPS id 4JPBzf3HvYz3xgm for ; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) Received: from ofmailhub.dwd.de (ofmailhub.dwd.de [141.38.39.196]) by ofcsg2dvf2.dwd.de with ESMTP id 1BTDRwa3003085-1BTDRwa4003085; Wed, 29 Dec 2021 13:27:58 GMT Received: from diagnostix.dwd.de (diagnostix.dwd.de [141.38.44.45]) by ofmailhub.dwd.de (Postfix) with ESMTP id 4EBE7E2BEB; Wed, 29 Dec 2021 13:27:58 +0000 (UTC) Date: Wed, 29 Dec 2021 13:27:58 +0000 (GMT) From: Holger Kiehl To: linux-kernel cc: Christoph Hellwig Subject: bpfilter: write fail messages with 5.15.x and centos 7.9.2009 Message-ID: <71e27b99-ef9c-4563-833d-e6eab5419cdb@diagnostix.dwd.de> MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset=US-ASCII X-FE-Policy-ID: 2:2:1:SYSTEM X-TMASE-Version: DDEI-5.1-8.6.1018-26620.007 X-TMASE-Result: 10--1.680000-10.000000 X-TMASE-MatchedRID: JIoVbvEI+CWCrAvdroZEJm1rAlJKwOBJ3WFaxVW7M2iO7zF9OdXqVTAI p5pTdcgudPVq34ohx1YjGJq9K65f6a4PSwdLs3CEngIgpj8eDcDYr6U3ZlQkdsRB0bsfrpPIcSq bxBgG0w5ARGa+8rI13GpVk2R+DxMYddCG7Yv8ov+256cnZoV+5YrbCj3qWi1ZOItzQfqqJ9aVbI BWGCvRsmDM9vAi/GQVS9KA1c/c0wEJ6EK9GiR53NHoD3/vk9U/2HWzpDxX3d0GwuNnqUs/PQ== X-TMASE-SNAP-Result: 1.821001.0001-0-1-22:0,33:0,34:0-0 X-TMASE-INERTIA: 0-0;;;; X-DDEI-PROCESSED-RESULT: Safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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