Subject: Re: kern/25388: After reboot dmesg shows old data from previous run
To: Manuel Bouyer <firstname.lastname@example.org>
From: Andrew Brown <email@example.com>
Date: 04/30/2004 00:35:37
On Thu, Apr 29, 2004 at 07:00:42PM +0200, Manuel Bouyer wrote:
>On Thu, Apr 29, 2004 at 01:56:06PM +0000, firstname.lastname@example.org wrote:
>> >Number: 25388
>> >Category: kern
>> >Synopsis: After reboot dmesg shows old data from previous run
>And what's the problem ? SunOS4 on sparc always behaved this way, and I suspect
>other Unix boxes too. It's quite usefull to see if the box rebooted after
>a panic for example.
>This usually doesn't happen on PCs because the BIOS clobbers the
>RAM and the message buffer is zeroed out. But it's not a bug to keep
>the message buffer intact on the few well-behaved PCs, it's a feature :)
actually, it usually *does* happen on pcs...at least in my experience.
what doesn't usually happen, though, is finding boot messages from
other operating systems there. that happened to me once. it was
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