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Date:      Thu, 19 Feb 2004 10:28:31 -0500
From:      Jesse Guardiani <jesse@wingnet.net>
To:        freebsd-current@freebsd.org
Subject:   Re: 5.2.1-RC2 debug kernel PANIC "Memory modified after free"
Message-ID:  <c12kmv$t5s$1@sea.gmane.org>
References:  <c0vsqa$su0$1@sea.gmane.org> <20040218220443.GA76951@troutmask.apl.washington.edu> <200402181818.43959.jesse@wingnet.net> <20040218234109.GA77908@troutmask.apl.washington.edu>

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Steve Kargl wrote:

[...]

>> > or setting it in
>> > the loader.  The other workaround was proposed by Maxim.  You
>> > need to change line 570 in dev/ata/ata-all.c from
>> >    request->retries = -1;
>> > to
>> >    request->retries = 3;
>> 
>> Since I'm not using ACPI, are you sure about that?
>> 
> 
> Works for me.  Although SOren committed a revision to ata-all.c yesterday,
> which I haven't hade time to test.
> 
> http://lists.freebsd.org/pipermail/freebsd-current/2004-February/020580.html
> http://lists.freebsd.org/pipermail/freebsd-current/2004-February/021323.html
> http://lists.freebsd.org/pipermail/freebsd-current/2004-February/021500.html

Interesting. Well, I can confirm that the panic is definately NOT ACPI related.
It happens in my debug kernel regardless of whether or not I have the acpi.ko
module loaded and/or hint.acpi.0.disabled=1 set.

I don't have atapicam in the kernel in question either.

I'm going to try that patch from Maxim today. I'll report my findings.

-- 
Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v)  423-559-5145 (f)
http://www.wingnet.net




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