From nobody Mon Aug 14 03:47:03 2023 X-Original-To: current@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 4RPL1l4svpz4Tw6l for ; Mon, 14 Aug 2023 03:47:07 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Received: from www121.sakura.ne.jp (www121.sakura.ne.jp [153.125.133.21]) (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 4RPL1l1gVyz3GcL; Mon, 14 Aug 2023 03:47:07 +0000 (UTC) (envelope-from junchoon@dec.sakura.ne.jp) Authentication-Results: mx1.freebsd.org; none Received: from kalamity.joker.local (123-1-88-210.area1b.commufa.jp [123.1.88.210]) (authenticated bits=0) by www121.sakura.ne.jp (8.16.1/8.16.1/[SAKURA-WEB]/20201212) with ESMTPA id 37E3l4a6012299; Mon, 14 Aug 2023 12:47:04 +0900 (JST) (envelope-from junchoon@dec.sakura.ne.jp) Date: Mon, 14 Aug 2023 12:47:03 +0900 From: Tomoaki AOKI To: "Greg 'groggy' Lehey" Cc: current@FreeBSD.org, Kevin Bowling Subject: Re: Potential show-stopper in em driver? Message-Id: <20230814124703.3875a7ba266cdf079525eb82@dec.sakura.ne.jp> In-Reply-To: <20230814015504.GB87066@eureka.lemis.com> References: <20230814015504.GB87066@eureka.lemis.com> Organization: Junchoon corps X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; amd64-portbld-freebsd13.2) List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4RPL1l1gVyz3GcL X-Spamd-Bar: ---- X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:7684, ipnet:153.125.128.0/18, country:JP] On Mon, 14 Aug 2023 11:55:04 +1000 "Greg 'groggy' Lehey" wrote: > I've spent the last couple of days chasing random hangs on my -CURRENT > box. It seems to be related to the Ethernet driver (em). I've been > trying without much success to chase it down, and I'd be grateful. > The box is headless, and all communication is via the net, which > doesn't make it any easier. I've tried a verbose boot, but nothing of > interest shows up. Typically it happens during the nightly backups, > which are over NFS: > > Aug 13 21:06:46 dereel kernel: <<<66>n>nffs server s6>neurekfs server aeureka:/dum:p: /ndoump: tnot responding > Aug 13 21:06:46 dereel kernel: > Aug 13 21:06:46 dereel kernel: responding > Aug 13 21:06:46 dereel kernel: > Aug 13 21:06:46 dereel kernel: server eureka:/dump:n not responding > > And if you haven't seen those garbled messages before, admire. > They've been there for a long time, and they have nothing to do with > the problem. More to the point, there are no other error messages. > > I've run three kernels on this box over the last few weeks: > > 1. FreeBSD dereel 14.0-CURRENT FreeBSD 14.0-CURRENT amd64 1400093 #10 main-n264292-7f9318a022ef: Mon Jul 24 17:13:32 AEST 2023 grog@dereel:/usr/obj/eureka/home/src/FreeBSD/git/main/amd64.amd64/sys/GENERIC amd64 > > This works with no problems. > > 2. FreeBSD 14.0-CURRENT amd64 1400094 #11 main-n264653-517e0978db1f: Thu Aug 10 14:17:13 AEST 2023 grog@dereel:/usr/obj/eureka/home/src/FreeBSD/git/main/amd64.amd64/sys/GENERIC > > 3. FreeBSD dereel 14.0-ALPHA1 FreeBSD 14.0-ALPHA1 amd64 1400094 #12 main-n264693-b231322dbe95: Sat Aug 12 14:31:44 AEST 2023 grog@dereel:/usr/obj/eureka/home/src/FreeBSD/git/main/amd64.amd64/sys/GENERIC amd64 > > Both of these exhibit the problem. > > Note that we're now ALPHA1, so it's a good idea to get to the bottom > of it. The box is an ThinkCentre M93p. I'm attaching a verbose boot > log, though I don't expect anybody to find something of use there. > I'm also currently building a new world in case something has happened > since Saturday. > > Greg > -- > Sent from my desktop computer. > See complete headers for address and phone numbers. > This message is digitally signed. If your Microsoft mail program > reports problems, please read http://lemis.com/broken-MUA.php Does commit f1b5488f7bba7f25a57750f87cbcbccbd5b9d16b [1] related? How does it go if disabling TSO as documeted on the commit message? CC'ing kbowling@, who committed all (I could find on cgit) e1000/em-related bits between the timeframe of 1. and 2. [1] https://cgit.freebsd.org/src/commit/?id=f1b5488f7bba7f25a57750f87cbcbccbd5b9d16b -- Tomoaki AOKI