From owner-svn-src-all@FreeBSD.ORG Sat Feb 21 01:06:36 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 681E1A0E; Sat, 21 Feb 2015 01:06:36 +0000 (UTC) Received: from cell.glebius.int.ru (glebius.int.ru [81.19.69.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "cell.glebius.int.ru", Issuer "cell.glebius.int.ru" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id E35087CA; Sat, 21 Feb 2015 01:06:35 +0000 (UTC) Received: from cell.glebius.int.ru (localhost [127.0.0.1]) by cell.glebius.int.ru (8.14.9/8.14.9) with ESMTP id t1L16XA7091312 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sat, 21 Feb 2015 04:06:33 +0300 (MSK) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.glebius.int.ru (8.14.9/8.14.9/Submit) id t1L16X9e091311; Sat, 21 Feb 2015 04:06:33 +0300 (MSK) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.glebius.int.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Sat, 21 Feb 2015 04:06:33 +0300 From: Gleb Smirnoff To: Roger Pau =?iso-8859-1?Q?Monn=E9?= Subject: Re: svn commit: r278977 - in head/sys: dev/cxgb dev/cxgb/sys dev/cxgb/ulp/tom dev/xen/netfront sys Message-ID: <20150221010633.GU15484@FreeBSD.org> References: <201502190119.t1J1JhSI025601@svn.freebsd.org> <54E62FB6.6050800@FreeBSD.org> <20150219200257.GK15484@FreeBSD.org> <54E6F17A.4020702@FreeBSD.org> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <54E6F17A.4020702@FreeBSD.org> User-Agent: Mutt/1.5.23 (2014-03-12) Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Feb 2015 01:06:36 -0000 On Fri, Feb 20, 2015 at 09:34:02AM +0100, Roger Pau Monné wrote: R> I've tried the attached patch and now I get a different panic: R> R> [...] R> xn0: at device/vif/0 on xenbusb_front0 R> xn0: Ethernet address: 00:16:3e:0a:80:c2 R> xenbusb_back0: on xenstore0 R> xbd0: Back-end specified ring-pages of 15 is not a power of 2. Limited to 8. R> xn0: backend features: feature-sg feature-gso-tcp4 R> xbd0: R> R> Fatal trap 9: general protection fault while in kernel mode R> cpuid = 0; apic id = 00 R> instruction pointer = 0x20:0xffffffff80b0c60b R> stack pointer = 0x28:0xfffffe0096c18960 R> frame pointer = 0x28:0xfffffe0096c18a30 R> code segment = base 0x0, limit 0xfffff, type 0x1b R> = DPL 0, pres 1, long 1, def32 0, gran 1 R> processor eflags = interrupt enabled, resume, IOPL = 0 R> current process = 12 (irq778: xn0) R> [ thread pid 12 tid 100052 ] R> Stopped at tcp_lro_rx+0x1b: movw 0xc(%rbx),%r15w R> db> bt R> Tracing pid 12 tid 100052 td 0xfffff80002da2940 R> tcp_lro_rx() at tcp_lro_rx+0x1b/frame 0xfffffe0096c18a30 R> xn_intr() at xn_intr+0xa12/frame 0xfffffe0096c18b30 R> intr_event_execute_handlers() at intr_event_execute_handlers+0xe1/frame 0xfffffe0096c18b70 R> ithread_loop() at ithread_loop+0xac/frame 0xfffffe0096c18bb0 R> fork_exit() at fork_exit+0x84/frame 0xfffffe0096c18bf0 R> fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0096c18bf0 R> --- trap 0, rip = 0, rsp = 0xfffffe0096c18cb0, rbp = 0 --- R> db> R> R> addr2line however seems to be unable to resolve the IP address R> to a line number: R> R> # addr2line -e /boot/kernel/kernel ffffffff80b0c60b R> ??:0 Do you have coredump? If yes, can you please show within frame of xn_intr(): p rxq p *m -- Totus tuus, Glebius.