Re: strange Bug

Björn Döbel <[email protected]>
Newsgroups gmane.comp.micro-kernel.l4.devel
Message-ID <[email protected]>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi,

>>> And at 15c7a8 there is e12fff37 <=> blx r7 , which i've
>>> already found in MOE. But that's not what i'm looking for, is
>>> it?
>> 
>> This has nothing to do with MOE. When you objdump the myClient
>> binary, can you find the address in there? Does the binary
>> contain blx r7 as well?
> 
> No, this instruction or PC is not in myClient nor in myServer. But
> i can find the instruction in a shared lib which myServer uses.

No. We are definitely looking at myClient as this is where the page
fault happens. Please objdump myClient and find the page fault PC again.

>>> Goto f118a000, gives me the PC=15c7a8 again, where the Error 
>>> happens.
>> 
>> Yep, the UTCB contains the exception message informing the
>> exception handler about the page fault. This is the effect of
>> your page fault, not the cause.
> 
> Well then, where do i find the cause for the page error? Do i need
> a deeper unterstanding of the stack, or shall i just look at the
> instructions around PC=15c7a8 ?

Actually I still think we are looking for the instruction exactly at
this location. How does the objdump around this area look like?


Bjoern
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iEYEARECAAYFAlRwVFQACgkQP5ijxgQLUNmDIACeL3nIJPZwZg0d4Dg3KvWS9+If
3HEAoJO6VELf21MImLsm9SuF4sBkNhUQ
=2Ss9
-----END PGP SIGNATURE-----
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.