From nobody Mon Aug 08 12:40:20 2022 X-Original-To: bugs@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 4M1bQF0LZNz4XrQt for ; Mon, 8 Aug 2022 12:40:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4M1bQD49pXz3jvQ for ; Mon, 8 Aug 2022 12:40:20 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4M1bQD38ZTzrqs for ; Mon, 8 Aug 2022 12:40:20 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 278CeK2n040883 for ; Mon, 8 Aug 2022 12:40:20 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 278CeKAq040882 for bugs@FreeBSD.org; Mon, 8 Aug 2022 12:40:20 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 265714] igc(4) drops link under high traffic Date: Mon, 08 Aug 2022 12:40:20 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: mike@sentex.net X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1659962420; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=tjmQEqeH+9dqgfVY81tAjkl9iqflKYOfBeLZzFhAOXs=; b=Lsg625BoUzv0VOm64NJuG9XBmbu/NkuRP/QxyMEDvSeRBaGJ7XqrDJkjCWCEQfmafbiW/W mJLHfLl/WC/TspFXPhdtUr2ViGtuBdAt0tOZGrvX2kOMXgPWqJI5xKHZ1KKSkgVCCywukA ktngk+8rK0ZKgNxNmfvrVeKSQoUsXCD3zrcATbrb2M/YmF6ivEIU4pZoNSRW9jU5LaWsqv ZWCDwf6gAmq7zVuIN3qBlt8NsTCgmCkJIsgp6t4K29Nl7HS+qbwfl+sU30YTE+rB6C9GeS y2RQqxPE7Zq6Er/F4uYY//rHVMyPGA69cz479JZvPju4Pinmc4cPQB9W66P0nA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1659962420; a=rsa-sha256; cv=none; b=nMitF/34U4iMNRFzJ+zMMFPoWWElQFXx3O+5C97qLiQFw0hk5GgfbWYKWK5hht699HG5Wq +Ynq3ZJVWD/I6Ea+Dy3q5JryaloXPvQ8PfV7VGmMLQWjddpsBs28pSx6EAhzwbJmQ6laD6 INsr0oCHQ/t1TQg+njCSQNDCZEDrPsZF3v5ONghTa3/ERcGBM1p+O2JxpCCpKKu5d4Kty2 HEGpePHTqH9fbQGVGlykRxSxCK2+cOsaDNrrNcQM719kLmcJ79U6J2TZ/oCfCFTEV13P+4 nSrnUbUR+es75hSd1AiKs29V2msNSBpJ5zaXbEDDQj2ckXPwh8j7sX10tsQcDQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265714 Bug ID: 265714 Summary: igc(4) drops link under high traffic Product: Base System Version: 13.1-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: mike@sentex.net Created attachment 235773 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D235773&action= =3Dedit diff of output of sysctl dev.igc before and after link drop Using a combo of netperf3 on 2 back to back RELENG_13 machines, the link wi= ll drop both at 1G and 2.5G link speeds. Trying without FC does seem to reduce the instances of the drop, but it still happens. Running a simple shell script to do TARGET=3D10.1.255.168 I=3D/usr/local/bin/iperf3 REPDIR=3D/var/tmp/reports while true=20 do d=3D`date "+%s"` $I -t 60 -c $TARGET sleep 2 /sbin/sysctl -a dev.igc.1 > $REPDIR/${d}a $I -P4 -t 60 -c $TARGET /sbin/sysctl -a dev.igc.1 > $REPDIR/${d}b sleep 2 $I -R -t 60 -c $TARGET /sbin/sysctl -a dev.igc.1 > $REPDIR/${d}c sleep 2 $I -R -P4 -t 60 -c $TARGET /sbin/sysctl -a dev.igc.1 > $REPDIR/${d}d done will result in random drops of the link igc1: link state changed to DOWN igc1: link state changed to UP igc1: link state changed to DOWN igc1: link state changed to UP igc1: link state changed to DOWN igc1: link state changed to UP its not clear if its the receiver or sender thats dropping it as the 2 mach= ines are on xover cable. Discussion at=20 https://lists.freebsd.org/archives/freebsd-stable/2022-August/000835.html --=20 You are receiving this mail because: You are the assignee for the bug.=