Date: Thu, 4 May 2000 11:40:13 +0930 From: Greg Lehey <grog@lemis.com> To: Jan Koum <jkb@ethereal.net> Cc: freebsd-stable@FreeBSD.ORG, freebsd-hackers@FreeBSD.ORG Subject: Re: Debugging Kernel/System Crashes, can anyone help?? Message-ID: <20000504114013.E22025@freebie.lemis.com> In-Reply-To: <20000503185936.E72341@ethereal.net> References: <20000504095941.B18453@freebie.lemis.com> <200005040124.VAA55655@account.abs.net> <20000504111136.B22025@freebie.lemis.com> <20000503185936.E72341@ethereal.net>
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On Wednesday, 3 May 2000 at 18:59:36 -0700, Jan Koum wrote:
> On Thu, May 04, 2000 at 11:11:36AM +0930, Greg Lehey <grog@lemis.com> wrote:
>>
>> Ah, then you're in better shape. I assume you installed the stripped
>> version of the kernel (it's default, despite my protests)
>
> what are some pro's and con's in this case?
I assume you had intended to copy the others, so I've put them back.
Pro having only one (debug) kernel:
1. If space is tight, you can save overall space. You need to keep
the kernel.debug somewhere. If you make it the boot kernel, you
use a total of 10 MB. Otherwise, even if you make clean, you end
up having a 10 MB kernel.debug somewhere and a 2.5 MB kernel in
the root file system.
2. savecore always saves the correct kernel. If you have to move it
manually from wherever you keep it, there's a big chance for
making mistakes. I've done it often enough.
Con:
1. If you're short of space on the root file system, the additional
7.5 MB can hurt. You can plan against this, of course, by
installing larger root file systems.
There's a separate issue about whether to build kernels with debug
symbols by default. That takes a lot more space (30 MB as compared to
about 8). But if you have a debug kernel, I don't see any reason to
install a stripped version.
Greg
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