From owner-freebsd-current@freebsd.org Thu Jul 23 10:06:04 2015 Return-Path: Delivered-To: freebsd-current@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 61F0B9A847D for ; Thu, 23 Jul 2015 10:06:04 +0000 (UTC) (envelope-from venkatkumar.duvvuru@avagotech.com) Received: from mail-ig0-x22c.google.com (mail-ig0-x22c.google.com [IPv6:2607:f8b0:4001:c05::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1AA9614C9 for ; Thu, 23 Jul 2015 10:06:04 +0000 (UTC) (envelope-from venkatkumar.duvvuru@avagotech.com) Received: by igbpg9 with SMTP id pg9so9923529igb.0 for ; Thu, 23 Jul 2015 03:06:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=avagotech.com; s=google; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=G0FmO5xZiDRYwH1FAiYnZboGwQ/feu7Izr4tUjV/Ss4=; b=nIRsqmHK8/oVtB5OktgaIcsAts7JA929utHfMqU+3nmqGQeCZjLnHxPHEOW2F2yP5Y 1OMmknILR2LfO4zOKwKoBboxVksii1QBhDqSpjqLirk3O2BxzFuGH7hczJ0oLxMmPtyJ wm2nxvno9chDytuG71B7HhmsArBNdtnvYAusY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=G0FmO5xZiDRYwH1FAiYnZboGwQ/feu7Izr4tUjV/Ss4=; b=aRdvfQgsVRUidcr8m7tTPT9Wkh2BpbUCfhQgZKKseAsrpVniWu31LS+6oYvizZiQXg TmP07E/+DYLB2F4d8K24Py+CtOvMzeyHQkfpQSbJijsrGAmFfeC9aBU+aBH1EtuYXbwx psgxLfiCCUXzI0kzXjZHihkPWy8+rbPVK5Bhx0Pi4HFvMRPC7+84VzG7CwjXzQkQ62fU aU28Vq0TcttaaUqswqWRVbLvXI5Y2aBCF9TeNsVUiTIXL5ZOw2YG0QQYXXiLi7DCHDgj BQcPrKuIgzqonC1n49/GawhT00XJLW2dgq3OI+JQVJU9HJBUp1i5Y8EvLQ5yBVeo5BDS cRZA== X-Gm-Message-State: ALoCoQkmX2asp+7UWDHOwGrZMDSGrObl3U+fmRDxUD6FRINGdkfn4c2tFPQfc4dY96ITt9ptitAI MIME-Version: 1.0 X-Received: by 10.50.43.227 with SMTP id z3mr42684131igl.22.1437645963277; Thu, 23 Jul 2015 03:06:03 -0700 (PDT) Received: by 10.79.21.131 with HTTP; Thu, 23 Jul 2015 03:06:03 -0700 (PDT) In-Reply-To: <55AFB0B7.4040605@freebsd.org> References: <55A9157A.8050208@freebsd.org> <55A91837.50805@freebsd.org> <55AE5810.6080205@freebsd.org> <55AFB0B7.4040605@freebsd.org> Date: Thu, 23 Jul 2015 15:36:03 +0530 Message-ID: Subject: Re: Kernel Application Binary Interface (kABI) support in FreeBSD From: Venkat Duvvuru To: Julian Elischer Cc: Allan Jude , freebsd-current@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 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: Thu, 23 Jul 2015 10:06:04 -0000 I will debug this crash. At this point, my concern is not about debugging this particular issue but whether to commit to our customers or not about the binary compatibility of FreeBSD X.0 drivers with all FreeBSD X.Y OS versions. I would like to stay safe and tell the customers to build the drivers on their respective revisions unless you folks think that the binary compatibility is maintained very strictly and this is one of those rare bugs. Please let me know. Thanks, Venkat. On Wed, Jul 22, 2015 at 8:33 PM, Julian Elischer wrote: > On 7/22/15 2:56 PM, Venkat Duvvuru wrote: > > I have this setup where FreeBSD 9.0 OCE driver is loaded on FreeBSD 9.3. > The OCE module loads just fine but when the interface is brought up, the > system crashes. This happens everytime I bring the interface up. > The backtraces are attached with this email. > However, if I build the same driver on 9.3, everything works just fine. > > then that is a bug. > Unfortunately I'm not your man for helping you find it at the moment. > Do you now how to run a kernel under GDB? > (either in a VM or with serial console (or firewire if you have it)) > There is a handbook section on doing this. > You might look at trying to see what actually goes wrong with the help of > GDB. > > > > _______________________________________________ >>> freebsd-current@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-current >>> To unsubscribe, send any mail to " >>> >>> freebsd-current-unsubscribe@freebsd.org" >>> >>> >> > >