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Date:      Wed, 19 Mar 1997 12:42:37 +1030 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        scrappy@hub.org (The Hermit Hacker)
Cc:        msmith@atrad.adelaide.edu.au, bde@zeta.org.au, imp@village.org, current@FreeBSD.ORG
Subject:   Re: 2.2 Kernel Unstable
Message-ID:  <199703190212.MAA20865@genesis.atrad.adelaide.edu.au>
In-Reply-To: <Pine.BSF.3.95.970318220112.215m-100000@thelab.hub.org> from The Hermit Hacker at "Mar 18, 97 10:06:23 pm"

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The Hermit Hacker stands accused of saying:
> > 
> > It all depends on where the fault occurs; if it's in memory used by a
> > program, the program gets killed.  If it's in memory used by the
> > kernel, the kernel gets killed.
> >
> 	I hate to beat a dead horse here, but so far as I'm able to tell,
> if I were to plug in the March 18th kernel I created and do a 'make cleandir'
> on /usr/src, it will cause a panic/reboot.  Same thing with the Feb 7th
> kernel just causes a SegFault...annoying, but liveable.

So the kernels have different memory usage patterns.  You still have
bad memory, and if your hardware is faulty, all bets are off.

> 	It seems kind of suspicious to me that with the Feb 7th kernel,
> it consistently *doesn't* reboot where the March 18th one does...I don't 
> know if there is anything in the bug reports I submitted for the
> March 18th kernel that will help, but they are there, and I still have
> the appropriate core files...

If the faults are 100% reproducible, with identical stack backtraces each
time, then it might be possible to either locate the memory address
that's faulty or locate the bug (if it's a bug).

-- 
]] Mike Smith, Software Engineer        msmith@gsoft.com.au             [[
]] Genesis Software                     genesis@gsoft.com.au            [[
]] High-speed data acquisition and      (GSM mobile)     0411-222-496   [[
]] realtime instrument control.         (ph)          +61-8-8267-3493   [[
]] Unix hardware collector.             "Where are your PEZ?" The Tick  [[



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