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Subject: Re: Kernel Application Binary Interface (kABI) support in FreeBSD
To: Venkat Duvvuru <venkatkumar.duvvuru@avagotech.com>
References: <e99bd6bc6ecf65c35f442e4065533c71@mail.gmail.com>
 <55A9157A.8050208@freebsd.org> <55A91837.50805@freebsd.org>
 <CADFzAK_wzBbhGsF3G1C32TY5afY5Yu0P6TCJmcFuJvkmRn3ZOg@mail.gmail.com>
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 <CADFzAK_9kkyRKO0ATAbz94YWVHcFyPu2fS6tWi0gYV=ogy6v3w@mail.gmail.com>
Cc: Allan Jude <allanjude@freebsd.org>, freebsd-current@freebsd.org
From: Julian Elischer <julian@freebsd.org>
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Date: Wed, 22 Jul 2015 23:03:19 +0800
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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.


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