possible bug in linux 0.98.4

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From: Andreas Mengel
Date: Wednesday, November 25, 1992 - 9:53 am

Hi there!
I think that I have just found two bugs (or one) in linux-0.98.4 !

The first one seems to be a null-pointer trap.
I got the following output after running on
a (probably) damadged floppy:
        falcon@krikkit.tty2 (text/KWEA): tar tvf /dev/fd0
*       floppy 0: data CRC error: track 0, head 1, sector 1
*       Reset-floppy called
        floppy 0: data CRC error: track 0, head 1, sector 1
        floppy I/O error
        dev 0200, sector 18
        Unable to handle kernel paging request at address c0000013
        Oops: 0000
        EIP:    0008:00017D3D
        EFLAGS: 00010202
        fs: 0017
        base: 00000000, limit: C0000000
        Pid: 67, process nr: 8
        80 78 12 00 74 09 50 e8 2b e4
        Segmentation fault
        falcon@krikkit.tty2 (text/KWEA):

(The lines marked with '*' repeated some times)
And the second one came just 2 minutes after it so perhaps
it was caused by the first.
I tried to format the floppy (same as before) with fdformat
the output was something like:
*       fdformat: sector not found              (don't know thew number)
and then
*       floppy 0: data CRC error: track 0, head 1, sector 1
        floppy I/O error
        dev 0200, sector 18
        Kernel panic: Trying to free free buffer.
and then the system was useless. That means I was able to
switch consoles via <ALT><F?> but I was not able
to do anything else.

My setup is:
        386-33 with 64KB Cache
        AMI BIOS
        Adaptec 1542B SCSI-Controller
        Quantum PD210S Harddisc
        8MB RAM
        Hercules Monochrom Adapter (the prize for the disc :-()
        LILO 0.6
        linux-0.98.4 with new scsi-code from tsx-11
          (fscsi-a06-pl1)
        rest of the system is a wild collection done by myself
          (using linux since 0.95c)
        and if it matters I am using the extended filesystem only


ObThanx to all the contributors to this fine system
(By the way: Is anybody working on X for hercules ??? ;-))) )

-- 
Bye,
        Falcon
===============================================================================
                           Real Name: Andreas Mengel
              Bitnet: 169371@DOLUNI1  |  UUCP:  mengel@uniol.UUCP
           Internet: Andreas.Mengel@arbi.informatik.uni-oldenburg.de
                        Inhouse: falcon@theoretica
              +-------------------------------------------------+
              |Some say I'm lazy, but others say that's just me.|
              |Some say I'm crazy, I guess I'll always be! (GnR)|
              +-------------------------------------------------+
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possible bug in linux 0.98.4, Andreas Mengel, (Wed Nov 25, 9:53 am)