Re: 2.5.63 accesses below %esp (was: Re: ntfs OOPS (2.5.63))
Hugh Dickins (firstname.lastname@example.org)
Tue, 18 Mar 2003 07:13:18 +0000 (GMT)
On Tue, 18 Mar 2003, Keith Owens wrote:
> I can change ksymoops to add a special case for architectures with
> variable length instructions - i386, s390 and their 64 bit equivalents,
> are there any others? For variable length instructions, ksymoops will
> extract the bytes up to but not including eip, decode and print them
> with a warning
> This architecture has variable length instructions, decoding before eip is
> unreliable, take these instructions with a pinch of salt.
> Then the code from eip onwards will be decoded as normal, with the
> heading 'This code should be reliable'.
If you go ahead with this (I'm indifferent), please remember that to
get reliable code from eip onwards, you need to handle the way both
2.4 and 2.5 nowadays pack short __LINE__ number and long __FILE__
pointer after BUG()'s ud2a (on i386).
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