From nobody Wed Jun 16 01:06:18 2021 X-Original-To: freebsd-ppc@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 BA61A11CCE1F for ; Wed, 16 Jun 2021 01:06:31 +0000 (UTC) (envelope-from kevin.bowling@kev009.com) Received: from mail-yb1-xb2f.google.com (mail-yb1-xb2f.google.com [IPv6:2607:f8b0:4864:20::b2f]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4G4RpZ6h72z4Qvq for ; Wed, 16 Jun 2021 01:06:30 +0000 (UTC) (envelope-from kevin.bowling@kev009.com) Received: by mail-yb1-xb2f.google.com with SMTP id m9so545576ybo.5 for ; Tue, 15 Jun 2021 18:06:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kev009.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=t5xCfAEFmefp5qNRYOuY6EW1Sl47xH8/sH5dUZ5MV1c=; b=CxuxABzETuM3QFxi/1nXC3qtPzItRllF5YxPfu8IpJKl96wzSC2NySQZ2a05R9iIrm EhKY3FILqumL/ZB/Jh4/BdgK9KS1riYajnKzf9nMPDbYsk3cyBj/HGg76E4poONCJKwJ k1IdOkM768BJFaDhWGF8/cQDiRHYb2hHdAiJA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=t5xCfAEFmefp5qNRYOuY6EW1Sl47xH8/sH5dUZ5MV1c=; b=h4TgSfygi2pYbqtxatV37A2Sdbmk20LZOTAqrEm3kwo5DVX4BLJs6gO08PIaTSWKTa nPXHKKNFjvqNNHqfPQyG4s5p096hTtjOuA+h7SDzAc8OxUPppagVHtGvw3oRmbjW3qKt iruGITVLnOOU9novfT5K8Zc5FZGtjq6pXfdOlH5E7H29PzWBvrFl5r7gRHI6RWcRaIyQ 5ArdWcGR0ydWaAEV3tYMXVtD0+8sF321gFYVKz7AN5BLzzvINR3eGdjCWMa+Ag7pwl9w pwLhOh5z1+gEeToFVU8ItzbBNty1ENhiwxGi/1l7M+9yOWtC4fe6DatuMk4JrLOvMDz/ qk9Q== X-Gm-Message-State: AOAM530RN2OjlHQUtP88scNinSMbqNICjN7jVBnd1BRhal/ZrwIDpD70 SZ4mRtkY66DT2luq6EjYs5U4iesIuZPhXI/tm4ieEg== X-Google-Smtp-Source: ABdhPJySGR7X9IFSpOfITJ7eaVpM9UtgA9Eo/wRCdNe9NJx/RcfDrNyAEF3tp4nrNlOPuqf2PmJd1JS0Nopf0noRGZI= X-Received: by 2002:a25:d1d3:: with SMTP id i202mr2694064ybg.495.1623805589593; Tue, 15 Jun 2021 18:06:29 -0700 (PDT) List-Id: Porting FreeBSD to the PowerPC List-Archive: https://lists.freebsd.org/archives/freebsd-ppc List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-ppc@freebsd.org X-BeenThere: freebsd-ppc@freebsd.org MIME-Version: 1.0 References: In-Reply-To: From: Kevin Bowling Date: Tue, 15 Jun 2021 18:06:18 -0700 Message-ID: Subject: Re: Network instability with jumbo frames on a G5 To: Julio Merino Cc: FreeBSD PowerPC ML Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 4G4RpZ6h72z4Qvq X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none (invalid DKIM record) header.d=kev009.com header.s=google header.b=CxuxABzE; dmarc=none; spf=pass (mx1.freebsd.org: domain of kevin.bowling@kev009.com designates 2607:f8b0:4864:20::b2f as permitted sender) smtp.mailfrom=kevin.bowling@kev009.com X-Spamd-Result: default: False [-3.28 / 15.00]; RCVD_TLS_ALL(0.00)[]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.98)[-0.983]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-ppc@freebsd.org]; DMARC_NA(0.00)[kev009.com]; SPAMHAUS_ZRD(0.00)[2607:f8b0:4864:20::b2f:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[kev009.com:~]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::b2f:from]; NEURAL_HAM_SHORT(-1.00)[-1.000]; R_DKIM_PERMFAIL(0.00)[kev009.com:s=google]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[2607:f8b0:4864:20::b2f:from]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-ppc] X-ThisMailContainsUnwantedMimeParts: N You are combining two things that I am skeptical of on FreeBSD on their own, jumbo frames and bge(4) :) If you just want the machine to work I'd say don't do that, but there are some bugs to be fixed if you are up for it. On Tue, May 18, 2021 at 9:22 PM Julio Merino wrote: > > Hi all, > > I'm trying to enable jumbo frames on my PowerMac G5 but I'm running into > trouble. As soon as I type "ifconfig bge0 mtu 9000", the kernel prints this: > > [zone: mbuf_jumbo_9k] kern.ipc.nmbjumbo9 limit reached > > and the ifconfig command gets stuck. This obviously shouldn't be happening > on a default configuration (right?). > > If I then bump kern.ipc.nmbjumbo9 (to ~40k, which is a bit bigger than the > default ~32k), then the ifconfig command gets unstuck and the network > becomes responsive again... to some extent. But whichever connection > triggers a jumbo frame gets stuck: for example, managing the machine over > SSH is impossible as any command that prints a lot of output quickly will > cause the connection to stall and die. > > I've also tried with a smaller jumbo frame (4072) and observed the same > issues. > > This is on a machine with 10GB of RAM and this adapter: > > bge0: mem > 0xfa530000-0xfa53ffff,0xfa520000-0xfa52ffff irq 66 at device 4.0 > numa-domain 0 on pci3 > bge0: CHIP ID 0x00008003; ASIC REV 0x08; CHIP REV 0x80; PCI-X 33 MHz > > I'm now wondering if this could be related to the problems I was observing > with USB drives as reported here: > https://docs.freebsd.org/cgi/getmsg.cgi?fetch=0+0+archive/2021/freebsd-ppc/20210404.freebsd-ppc. > That said, the machine has been very stable otherwise... > > Any ideas? > > Thanks > > -- > jmmv.dev > _______________________________________________ > freebsd-ppc@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-ppc > To unsubscribe, send any mail to "freebsd-ppc-unsubscribe@freebsd.org"