From owner-freebsd-current@freebsd.org Fri Aug 28 13:30:09 2020 Return-Path: Delivered-To: freebsd-current@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 9B63B3B1474 for ; Fri, 28 Aug 2020 13:30:09 +0000 (UTC) (envelope-from allanjude@freebsd.org) Received: from tor1-11.mx.scaleengine.net (tor1-11.mx.scaleengine.net [209.51.186.6]) (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 4BdL7P1zTLz4Yy7 for ; Fri, 28 Aug 2020 13:30:09 +0000 (UTC) (envelope-from allanjude@freebsd.org) Received: from [10.1.1.2] (Seawolf.HML3.ScaleEngine.net [209.51.186.28]) (Authenticated sender: allanjude.freebsd@scaleengine.com) by tor1-11.mx.scaleengine.net (Postfix) with ESMTPSA id BA0D48EA8 for ; Fri, 28 Aug 2020 13:30:07 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.10.3 tor1-11.mx.scaleengine.net BA0D48EA8 To: freebsd-current@freebsd.org References: <4C267E15E99E4003964861B4B7ADC9E3@SERJHOME> From: Allan Jude Autocrypt: addr=allanjude@freebsd.org; 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WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <4C267E15E99E4003964861B4B7ADC9E3@SERJHOME> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="HQP6yPJ8tadF8y1N0PkUM5Tb5uGLSRtqw" X-Rspamd-Queue-Id: 4BdL7P1zTLz4Yy7 X-Spamd-Bar: / X-Spamd-Result: default: False [0.00 / 15.00]; local_wl_from(0.00)[freebsd.org]; ASN(0.00)[asn:6939, ipnet:209.51.160.0/19, country:US] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Aug 2020 13:30:09 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --HQP6yPJ8tadF8y1N0PkUM5Tb5uGLSRtqw Content-Type: multipart/mixed; boundary="GblUmL0ac6FiZBxcMYO5OlyTI4fwJNR6z"; protected-headers="v1" From: Allan Jude To: freebsd-current@freebsd.org Message-ID: <34221ede-fa69-f3f1-5f26-744cb35c2ffb@freebsd.org> Subject: Re: speedtest.net in multi connections mode causes the FreeBSD 13-CURRENT router to crash References: <4C267E15E99E4003964861B4B7ADC9E3@SERJHOME> In-Reply-To: <4C267E15E99E4003964861B4B7ADC9E3@SERJHOME> --GblUmL0ac6FiZBxcMYO5OlyTI4fwJNR6z Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 2020-08-28 08:02, S.N. Trigub wrote: > Hi! >=20 > I run FreeBSD 13.0-CURRENT #0 r363772 as router in small office with tw= o > network interface: sk0 and sk1. > sk0 connected to 2 providers (main and backup) via VLAN and natd, sk1 > connected to office network via VLAN. > I had to use VLAN due to cabling issues. >=20 > As soon as the user runs the speedtest.net in browser on any client > computer in network > FreeBSD router goes into panic mode and automatically reboot during > multi connection upload test. > In single connections mode of speedtest.net all is fine. >=20 > Error is : Fatal trap 12: page fault while in kernel mode. >=20 > In my opinion the error is caused by multiple openings of outgoing > connections on router in a short period of time. > This is not a hardware error. I tested it on three different > motherboards with different kernel versions and diffenent amount of RAM= > (8GB DDR2 and 16, 24, 32GB DDR3). > Maybe this is somehow due to the use of VLAN, or network card driver > problem... > I noticed this problem about six months ago when I switched from FreeBS= D > 12-Current to FreeBSD 13-Current. > Since then I have been updating the kernel about once a week, but the > error still present. >=20 > I read on the some artictes in Internet that this can happen when tcp > extensions are enabled. I disabled tcp_extensons in rc.conf, and > set some sysctls params as described in Internet-articles, but it didn'= t > affect anything. > The same error sometimes occurs when clients are talking on Skype. >=20 > Could you help me? Any idea is appreciated! >=20 > Thank you. > Sergei. >=20 Usually, just under the message 'Fatal trap 12: page fault while in kernel mode.' there will be some other debugging information, specifically, the 'stack backtrace', which shows where in the code the crash happened. If you can manage to capture that, it will be much easier to investigate your issue. Here is a random example I managed to find on the internet: https://preview.redd.it/cch19ymrucy21.png?width=3D644&format=3Dpng&auto=3D= webp&s=3Dbd483ca83d80fb0cdccb9b835d71b6d9812c592e --=20 Allan Jude --GblUmL0ac6FiZBxcMYO5OlyTI4fwJNR6z-- --HQP6yPJ8tadF8y1N0PkUM5Tb5uGLSRtqw Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (MingW32) iQIcBAEBAgAGBQJfSQbfAAoJEBmVNT4SmAt+a/oQALtVxt2Wx9QMf3GmasbyVwuo gaGaM5J30tHwvC86BX+rldHbDJ8uZXjXRKWL1yBXOPeoA5szZVloKUjCZCDOmPE+ 3IU7M79/qHxPG78OaN7KnxZs8vwpk3PwFl/ecrBNuWSRJXv45Zg28UB9yyTEzGCs Ld9EEOtBxBa1PE54l3W8ndPQAZViZg77oCrpWzzcUkbzfXBrnkDHF4kXP6xS5kcC DvppEq+AfNsRa5Id29VGWRTC2zVYUSrkD+3Oe47xR8YLDTE+4VOfNl/cr38sbf/l qvj+iMESoJZyHRUcLlYnD8TVtu+5HZj0pd4FidLHG0cNUTBAcnXdypVYEbk+9xxI mxgfGskzeFAL2ZvonrOzO4HlzksQR5k88S1blu3ax9XKAWK+Au2bTA/XUP/JEMKN abxOu4R+ffIex4xan3g+XAOl+NhZU4fa2KtebGYhPWJe0aHyuNTY5ttunXs8hftn ZyRlkixf7mrjP+rJa0tC61CvOA0fcVpzpMfCRUMJk9B4qv5ok3FqbutVv3DfYnL+ Fh+u0vLYEdWU+ylKRdj3KOqpCAV/uMhSno5jWzdkAdz6ExN4KxUTd3nCudznOGah UqXpCuLYzVk0pNNxLN8blc42WnsE4emUWku7BPhEXnomyOFvAunCabLaAYQ2dyIq z4O9DHTKcjfx5uU9oFGF =XTBJ -----END PGP SIGNATURE----- --HQP6yPJ8tadF8y1N0PkUM5Tb5uGLSRtqw--