From owner-freebsd-bugs@freebsd.org Tue Aug 29 20:06:31 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3629FDE4738 for ; Tue, 29 Aug 2017 20:06:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 24A5D6F591 for ; Tue, 29 Aug 2017 20:06:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v7TK6UZB047976 for ; Tue, 29 Aug 2017 20:06:31 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 221919] ixl: TX queue hang when using TSO and having a high and mixed network load Date: Tue, 29 Aug 2017 20:06:31 +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: 11.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: nikita@elyzion.net X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-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 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 MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Aug 2017 20:06:31 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221919 Bug ID: 221919 Summary: ixl: TX queue hang when using TSO and having a high and mixed network load Product: Base System Version: 11.1-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: nikita@elyzion.net In my scenario, when having an hundred of iscsi sessions that are doing a l= oad of around 10Gib (but it happen with a smaller load less often too) of mixed RX/TX, my XL710-DA2 cards start to flap with the following output in dmesg: ``` ... kernel: ixl0: WARNING: queue 4 appears to be hung! kernel: ixl0: WARNING: Resetting! kernel: ixl0: Malicious Driver Detection event 2 on TX queue 0, pf=20 number 0 kernel: ixl0: MDD TX event is for this function!=20 ... kernel: ixl0: Interface stopped DISTRIBUTING, possible flapping ... ``` (and then a lot iscsi session drop due to the flap) It happens, during the network load, something like every 5min. It seems to me to be related to TSO because when I have disabled it, the bug was gone and I was unable to reproduce it anymore. Reenabling TSO make the = bug appearing again. My FW : dev.ixl.0.fw_version: fw 5.0.40043 api 1.5 nvm 5.05 etid 800028a6 o= em 1.262.0 But I also reproduced it with fw 4.33.31377 api 1.2 nvm 4.42 --=20 You are receiving this mail because: You are the assignee for the bug.=