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Re: 2.4.18 XFS 1.1 : Gave up on XFS - too many Oops

To: "Ken D'Ambrosio" <kend@xxxxxxxxxxxx>
Subject: Re: 2.4.18 XFS 1.1 : Gave up on XFS - too many Oops
From: Eric Sandeen <sandeen@xxxxxxx>
Date: 24 Jul 2002 10:53:47 -0500
Cc: mdomo@xxxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxx
In-reply-to: <35367.10.20.1.45.1027524018.squirrel@kend-linux.xanoptix.com>
References: <20020724072629.B13199@extra.netlink.se> <35367.10.20.1.45.1027524018.squirrel@kend-linux.xanoptix.com>
Sender: owner-linux-xfs@xxxxxxxxxxx
hi Ken - 

Hm, I don't think -any- .config file is supplied via CVS, although KDB
is set to be on in linux/arch/i386/defconfig.

KDB is generally a good thing to have on in a CVS kernel, I think,
because CVS is not expected to be super-stable, and may offer many
debugging opportunities.

The latest -released- XFS version (1.1) did not have kdb enabled,
however.

Frankly, if you're taking a CVS kernel & running it in a production
environment, without understanding the implications of the options that
are enabled, you are bound to have problems.  :)

FWIW, you can also control kdb via /proc/sys/kernel/kdb

-Eric

On Wed, 2002-07-24 at 10:20, Ken D'Ambrosio wrote:

> One thing I've noticed -- and feel free, guys, to correct me if I'm wrong,
> since I'm *not* a kernel hacker -- is that "Built-in Kernel Debugger
> support" is enabled by default, at least for the CVS copy I have.  The
> problem here, I believe, is that if the system has an OOPS, instead of
> logging it to syslog and going on its way, it dumps you into the debugger.
> While this doesn't crash your system, per-se, it *does* make it unavailable
> until someone manually types "go" at the debug prompt.  This can create big
> problems in a production environment (alas, I proved this myself last week).
>  I've since re-compiled all my kernels to -not- have the debugger included,
> and all proceeds smoothly.  Perhaps the debugger should _NOT_ be enabled by
> default in the .config file included with XFS' Linux kernel tree?
> 
> $.02,
> 
> -Ken
-- 
Eric Sandeen      XFS for Linux     http://oss.sgi.com/projects/xfs
sandeen@xxxxxxx   SGI, Inc.         651-683-3102


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