Hi Charles,

> adfs: module not supported by Novell, setting U taint flag.
> ADFS-fs error (device loop0): adfs_checkmap: crosscheck != 0xff
> Unable to handle kernel NULL pointer dereference at virtual address 00000000
> ...
> Call Trace:
>  [<c01d2c5d>] vsprintf+0xd/0x10
>  [<d0c3ba33>] __adfs_error+0x23/0x90 [adfs]
>  [<c01089a5>] do_IRQ+0xe5/0x120
>  [<c0106cf8>] common_interrupt+0x18/0x20
>  [<c03d007b>] md_setup_drive+0x16b/0x5c0
>  [<c015007b>] sys_fchdir+0x5b/0x80
>  [<d0c3bb2d>] adfs_calczonecheck+0x2d/0xe0 [adfs]
>  [<d0c3bc10>] adfs_checkmap+0x30/0xc0 [adfs]
>  [<d0c3c12a>] adfs_read_map+0x1ca/0x200 [adfs]

Well, the good news is you've found a bug in the kernel.

    adfs_error(sb, NULL, "map corrupted");

That `NULL' shouldn't be there.  The bad news is the bug triggered
because the kernel's adfs thinks your ADFS disc map is corrupted.

If you've access to the original machine, you could try a `*CheckMap' on
it.  That would show if the ripping went OK.  And if there's problems
then Druck's DiscKnight may be able to sort them out.  Whether this is
also possible under arcem on a disc image, I don't know.  Druck may also
be able to provide a private copy of DiscReader that would work on the
image under Linux.

    http://www.armclub.org.uk/products/discknight/
    
http://groups.google.co.uk/group/comp.sys.acorn.programmer/browse_thread/thread/c14e10aed4b14498

Cheers,


Ralph.



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