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Date: Sat, 10 Aug 2002 09:08:04 +0100
From: Russell King <rmk@arm.linux.org.uk>
To: Keith Owens <kaos@ocs.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kernel BUG at /usr/src/linux-2.5.30/include/linux/dcache.h:261!
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On Sat, Aug 10, 2002 at 11:09:42AM +1000, Keith Owens wrote:
> On Fri, 09 Aug 2002 14:00:37 -0700, 
> Andrew Morton <akpm@zip.com.au> wrote:
> >It would be much more useful if the oops code were to dump the
> >text preceding the exception EIP rather than after it, actually.
> >I think Keith said that ksymoops supports that.
> 
> Not only does ksymoops support it but some architectures already do
> this.  Mind you, they are not consistent :(
> 
> Alpha:  Code: 44220001  f4200003  46520400 <a77d9c38> 6b9b4a40  a44803a8  42425401  42c10403  40603401
> Arm:    Code: e7973108 e1a02423 (e5c42001) e5c43000 e1a02823
> 
> If any instruction in the code line is enclosed in <> or () then
> ksymoops assumes that the first byte is EIP.

In 2.5, I changed ARM to indicate the last word as the EIP (so we get more
context as Andrew Morton suggests.)  However, ksymoops now seems to ignore
the '()' !

At some point I plan to check what happens if its the second to last.  I
suspect ksymoops is looking for the strings ' (' and ') ', the second of
which obviously doesn't exist.

-- 
Russell King (rmk@arm.linux.org.uk)                The developer of ARM Linux
             http://www.arm.linux.org.uk/personal/aboutme.html

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