Date: Thu, 14 Feb 2002 11:20:48 -0800 From: vijay <vijay@IPRG.nokia.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Kernel after halt issued Message-ID: <3C6C0E10.58B51052@iprg.nokia.com> References: <5.0.2.1.0.20020214143320.0665a0c0@213.161.0.10> <3C6BD11A.B8FF58F2@mindspring.com>
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Hi, I am not an expert on the FreeBSD kernel, but for the past few days I have been dealing with this very issue. From my experiments I have concluded that the kernel IS loaded, and it has the processor stuck in an infinite loop. The only way to go from there is to a reboot. I have a system with two cards running FreeBSD based kernels, and connected with an ARCnet lan (COM20020 chip from SMSC), and while halted, the driver does not reset the hardware for the other card to take over (it is an isa device). I am still working on a possible solution for this. vijay "PSI, Mike Smith" wrote: > > I just heard someone say that they believed that the kernel was still > running after a halt is issued, but just cannot (won't?) create any > processes. So while I realize this person may not know what they are > talking about (and am showing my own ignorance for even listening), the > question is... > > Is the kernel still running after a halt? > > If it is, then there are very interesting possibilities for building in > very specific capabilities in the kernel, then under "halt" condition > have those capabilities available. AND NOTHING ELSE! Interesting from a > security standpoint. Plus it would not require to to strip your system > down to bare bones to eliminate holes. You could bring it up to a fully > capable system at any time it was necessary. > > So Is the kernel still running after a halt? If so, has anyone found a > way to take advantage of this? > > (Not THE) Mike Smith > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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