From owner-freebsd-stable@freebsd.org Mon Mar 15 09:06:40 2021 Return-Path: Delivered-To: freebsd-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A1CA657586F for ; Mon, 15 Mar 2021 09:06:40 +0000 (UTC) (envelope-from mr.xanto@gmail.com) Received: from mail-lf1-x135.google.com (mail-lf1-x135.google.com [IPv6:2a00:1450:4864:20::135]) (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 4DzVsX09Hpz4XxY for ; Mon, 15 Mar 2021 09:06:39 +0000 (UTC) (envelope-from mr.xanto@gmail.com) Received: by mail-lf1-x135.google.com with SMTP id p21so55550324lfu.11 for ; Mon, 15 Mar 2021 02:06:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:message-id:to:cc:subject:in-reply-to:references :mime-version:content-transfer-encoding; bh=XRzGcMbLnFsQaX+qxhoRdvU3UI0Ipw1jLOWR6daABPA=; b=orcTj9iA8fbVvHVWvqyOMvRn9pChxM/hw5tSVxniGR9fLx5lulwUuaG0DeT1ToJnM7 q+dejwQtZLU30tUDK3b/rz7jvQ2Z99vnHk9XFNWkNFifUyQof8giEljEGWBxBmAtjWqy VogSPHn9mqjiNwbJnJSGBYlxqTNjAdPVfbSf9HTjlJEgOtxOhDueg5dvY+fJdP+f2Pky kWbM3BqT7wv2SU1eDmizRvX6jKb39xQrwLA8jz+5rRGoP40YSLxK9tFJSAVoee66nmJ5 EgyQ4GdF9M4cDv8R5kUd8qdYOdUpY5Bx03TRV1wyrk/iiZKvac6zEYl8rX3ICcDCCt7k 1lWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:message-id:to:cc:subject:in-reply-to :references:mime-version:content-transfer-encoding; bh=XRzGcMbLnFsQaX+qxhoRdvU3UI0Ipw1jLOWR6daABPA=; b=UIUPQds95lnaK4hFB2O0kU3NHTW8irMfQ/Zc9I6LPQNWN5mog+BB3HaqePlKKCTFPp nSUdd7e/9J9OSz11joHR1uQzJJodHDB7TladLaiHiqXcTI/NZVSoVV+V8jOoZ7XkukLF HnogPQWKCiun40rN7y94hL1kh1oT4nsHA7H+FnP27rmH5REa/FTSTehUw6Ya2GchLwS9 9qNVV4GSKxy/0so+emmLevM7rsM8/jidU4EOnMIVRBye9MflPXgWhxLk9z9vQHeDHqbQ 5qXt7LyV+Cwmo4em57/WXx4VSYXYuvNbNlkshrtE/vw88G/boDhr0aSGykmmydAs7kyQ CcEA== X-Gm-Message-State: AOAM530j5BhvhztTOGHC8lzbD9XsFfreBlH45TRFze1gCPFtNyPLFy9u FEvejte139p+e99mph0XWUkJJn+K37o= X-Google-Smtp-Source: ABdhPJyDXoCu/zY/rKI8nKDVnXJFKW6R9YwYY9bDnY7e1I98pCXzoEIOvJUtBImWgM+wxWVid1uvTA== X-Received: by 2002:a19:4147:: with SMTP id o68mr7925190lfa.295.1615799198246; Mon, 15 Mar 2021 02:06:38 -0700 (PDT) Received: from [192.168.70.66] ([37.235.174.147]) by smtp.gmail.com with ESMTPSA id i185sm2580320lfd.279.2021.03.15.02.06.37 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Mar 2021 02:06:37 -0700 (PDT) Date: Mon, 15 Mar 2021 12:06:37 +0300 From: Mamontov Roman Message-ID: <184858182.20210315120637@gmail.com> To: "Alexander V. Chernikov" CC: FreeBSD-STABLE Mailing List Subject: Re: Troubles with netdump(4) In-Reply-To: <44FCBDFB-8962-4F5D-BFCE-682662524245@ipfw.ru> References: <1903978782.20210310130715@gmail.com> <44FCBDFB-8962-4F5D-BFCE-682662524245@ipfw.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1250 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 4DzVsX09Hpz4XxY X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=orcTj9iA; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of mrxanto@gmail.com designates 2a00:1450:4864:20::135 as permitted sender) smtp.mailfrom=mrxanto@gmail.com X-Spamd-Result: default: False [-2.02 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RECEIVED_SPAMHAUS_PBL(0.00)[37.235.174.147:received]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MID_RHS_MATCH_FROM(0.00)[]; TAGGED_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; ARC_NA(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2a00:1450:4864:20::135:from]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; NEURAL_SPAM_SHORT(0.98)[0.982]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-stable@freebsd.org]; SPAMHAUS_ZRD(0.00)[2a00:1450:4864:20::135:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::135:from]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-stable] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Mar 2021 09:06:40 -0000 =0D=0A>> Next =A0I =A0try =A0netdumping =A0to =A0another =A0FreeBSD-host = =A0(virtual machine on VMWare=20 >> hypervisor): >> root@host-3:~ # uname -mv >> FreeBSD 12.2-STABLE r369412 GENERIC =A0amd64 >> root@host-3:~ # ifconfig em0 >> em0: flags=3D8843 metric 0 mtu 1= 500 >> =A0 =A0 =A0 =A0options=3D81009b >> =A0 =A0 =A0 =A0inet 192.168.7.18 netmask 0xffffff00 broadcast 192.168.7.= 255 >> =A0 =A0 =A0 =A0media: Ethernet autoselect (1000baseT ) >> =A0 =A0 =A0 =A0status: active >> =A0 =A0 =A0 =A0nd6 options=3D29 >> root@host-3:~ # >>=20 >> And netdumping to this host are still slow (~the same 5KB/s).=20 >>=20 >> Next step another FreeBSD-host (virtual machine on VirtualBox hypevisor): >> root@host-4:~ # uname -mv >> FreeBSD 12.2-STABLE r369412 GENERIC =A0amd64 >> root@host-4:~ # ifconfig em0 >> em0: flags=3D8843 metric 0 mtu 1= 500 >> =A0 =A0 =A0 =A0options=3D81009b >> =A0 =A0 =A0 =A0inet 192.168.7.19 netmask 0xffffff00 broadcast 192.168.7.= 255 >> =A0 =A0 =A0 =A0media: Ethernet autoselect (1000baseT ) >> =A0 =A0 =A0 =A0status: active >> =A0 =A0 =A0 =A0nd6 options=3D29 >> root@host-4:~ # >>=20 >> Both (host-3 and host-4) are installed from FreeBSD-12.2-STABLE-amd64-20= 210304-r369412-bootonly.iso >> When =A0I =A0caused =A0a =A0kernel panic by sysctl debug.kdb.panic on ho= st-4, netdumping to=20 >> host-3 show the same 5 KB/s. > netdump requires explicit acks from the other side. > Could you try dumping the exchange between the dumping host and the serve= r to > verify that acks are sent immediately after receiving the next chunk? Sure. There is a dump: https://disk.yandex.ru/d/i27n1m-I80DaEg What should be tuned: netdumpd, netdumpd-host or something else? Now I can't completely done netdump: there frequenly error: ** DUMP FAILED (ERROR 60) ** Cannot dump: unknown error (error=3D60). and panic inside iflib: https://pastebin.com/1BTTjGLJ