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Re: sudo oops on mips64 linux_2_4

To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Subject: Re: sudo oops on mips64 linux_2_4
From: Ladislav Michl <ladis@linux-mips.org>
Date: Wed, 16 Jul 2003 20:45:15 +0200
Cc: Florian Lohoff <flo@rfc822.org>, linux-mips@linux-mips.org
In-reply-to: <Pine.GSO.3.96.1030716165657.25959C-100000@delta.ds2.pg.gda.pl>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <20030716142136.GA13810@paradigm.rfc822.org> <Pine.GSO.3.96.1030716165657.25959C-100000@delta.ds2.pg.gda.pl>
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On Wed, Jul 16, 2003 at 05:21:20PM +0200, Maciej W. Rozycki wrote:
> On Wed, 16 Jul 2003, Florian Lohoff wrote:
> 
> > >  Please pass it through ksymoops for more details.  Version 2.4.9 should
> > > work just fine for mips64.
> > 
> > This looks still broken - Giving the vmlinux file to ksymoops makes it
> > even worse - tons or errors.
> > 
> > ksymoops 2.4.8 on mips 2.4.19-r5k-ip22.  Options used
> >      -v /dev/null (specified)
> >      -k /dev/null (specified)
> >      -l /dev/null (specified)
> >      -o /dev/null (specified)
> >      -m /home/flo/System.map (specified)
> 
>  Hmm, I would use "-V -K -L -O -m /home/flo/System.map" instead. ;-)  And
> also "-t elf64-tradbigmips -a mips:5000" as you really want 64-bit
> addresses and opcodes beyond R3k (and your ksymoops isn't configured to
> use a 64-bit target by default).  Using vmlinux might give additional
> information beyond what System.map can provide and it should work just
> fine once right options are passed to ksymoops -- I used to get correct
> output with no warnings at all. 
> 
>  At least we know the error is in drivers/video/fbmem.c:fbmem_read_proc() 

and at least we know there is something wrong. why is fbmem compiled in
at all?

> because of buf being null.  But please retry with the above options to get
> some addresses decoded.

        ladis

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