From owner-freebsd-net@freebsd.org Thu Oct 13 08:37:55 2016 Return-Path: Delivered-To: freebsd-net@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 7DA71C0FD2D for ; Thu, 13 Oct 2016 08:37:55 +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 521A1FDE for ; Thu, 13 Oct 2016 08:37:55 +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 u9D8brjb044082 for ; Thu, 13 Oct 2016 08:37:55 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 148807] [panic] "panic: sbdrop" and "panic: sbsndptr: sockbuf _ and mbuf _ clashing" (8.1-RELEASE/10.1-STABLE/11-CURRENT) Date: Thu, 13 Oct 2016 08:37:54 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.1-STABLE X-Bugzilla-Keywords: crash, needs-qa, patch X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: ddb@neosystem.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: freebsd-net@FreeBSD.org X-Bugzilla-Flags: mfc-stable9? mfc-stable10? mfc-stable11? X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: 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-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 13 Oct 2016 08:37:55 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D148807 Daniel Bilik changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ddb@neosystem.org --- Comment #32 from Daniel Bilik --- (In reply to Robert Watson from comment #29) > On the whole, my intuition is towards a device-driver bug based > on past experience. We've been also struggling this in past weeks, and I can confirm Robert's intuition. In our case, the bug affects two hosts running recent 10-STABLE, connected = to each other via igb(4) using a dedicated 100Mb switch. When trying to transf= er directory structure holding several gigabytes of data with rsync protocol, either sender or receiver panics in less then a minute with: Panic String: sbsndptr: sockbuf 0xfffff8000ccc76f8 and mbuf 0xfffff802a0145= 800 clashing Interestingly, scp(1)ing data between the hosts doesn't seem to trigger this panic such easily, but sometimes it does, mostly when copying larger (>1GB) files. We've fixed this just yesterday by limiting number of igb(4) txrx queues, i= e. adding this into loader.conf: hw.igb.num_queues=3D1 Now the hosts run stable, periodically rsyncing data in both directions. --=20 You are receiving this mail because: You are the assignee for the bug.=