From nobody Thu Oct 17 19:16:02 2024 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4XTyHH1BfGz5ZMyW; Thu, 17 Oct 2024 19:16:11 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4XTyHG04S6z4YDF; Thu, 17 Oct 2024 19:16:09 +0000 (UTC) (envelope-from kostikbel@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=none; spf=softfail (mx1.freebsd.org: 2001:470:d5e7:1::1 is neither permitted nor denied by domain of kostikbel@gmail.com) smtp.mailfrom=kostikbel@gmail.com; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=gmail.com (policy=none) Received: from tom.home (kib@localhost [127.0.0.1] (may be forged)) by kib.kiev.ua (8.18.1/8.18.1) with ESMTP id 49HJG2oD073765; Thu, 17 Oct 2024 22:16:05 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua 49HJG2oD073765 Received: (from kostik@localhost) by tom.home (8.18.1/8.18.1/Submit) id 49HJG2LR073764; Thu, 17 Oct 2024 22:16:02 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 17 Oct 2024 22:16:02 +0300 From: Konstantin Belousov To: Warner Losh Cc: src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: cafc839393db - main - ciss: Ignore data over/under run on RECEIVE_DIAGNOSTIC Message-ID: References: <202410140540.49E5ep2I089300@gitrepo.freebsd.org> List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202410140540.49E5ep2I089300@gitrepo.freebsd.org> X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FREEMAIL_FROM, NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on tom.home X-Spamd-Result: default: False [-3.00 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-0.999]; DMARC_POLICY_SOFTFAIL(0.10)[gmail.com : No valid SPF, No valid DKIM,none]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; ASN(0.00)[asn:6939, ipnet:2001:470::/32, country:US]; MIME_TRACE(0.00)[0:+]; MISSING_XM_UA(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_SOME(0.00)[]; HAS_XAW(0.00)[]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[dev-commits-src-all@freebsd.org,dev-commits-src-main@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_SOFTFAIL(0.00)[~all]; RCVD_TLS_LAST(0.00)[]; RCPT_COUNT_THREE(0.00)[4] X-Rspamd-Queue-Id: 4XTyHG04S6z4YDF X-Spamd-Bar: -- On Mon, Oct 14, 2024 at 05:40:51AM +0000, Warner Losh wrote: > The branch main has been updated by imp: > > URL: https://cgit.FreeBSD.org/src/commit/?id=cafc839393db5c5d8000fd086118b3c7b47e95c2 > > commit cafc839393db5c5d8000fd086118b3c7b47e95c2 > Author: Peter Eriksson > AuthorDate: 2024-10-14 04:01:33 +0000 > Commit: Warner Losh > CommitDate: 2024-10-14 05:22:19 +0000 > > ciss: Ignore data over/under run on RECEIVE_DIAGNOSTIC > > This appears to be harmless, so ignore data over/under run on > diagnostics. > > PR: 246279 > Reviewed by: imp > Tested by: Marek Zarychta > Differential Revision: https://reviews.freebsd.org/D25155 I am not sure what does the data overrun or underrun means in this context. But ciss(4) is very unhappy with an IOMMU turned on. It is so broken with it handling of DMA that controller even does not attach, causing faults and timing out. I did not tried to read the ciss code to see where the faults come from.