5.2.1-RC2 debug kernel PANIC "Memory modified after free"

[Jesse Guardiani]

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.

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Jesse Guardiani, Systems Administrator
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