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SubjectRe: OOPS in 2.4.21-pre5, ide-scsi
On Thu, Mar 13 2003, James Stevenson wrote:
> > > strange looks alot like the ones i have seen though the whole 2.4.x
> tree.
> > >
> > > this was discussed before somebody said they would send a patch myself
> > > and sombody else were going to test it but the patch never happens.
> > > >From what i can work out an error occurs on the cd drive and the
> request
> > > queue is then empty and the ide-scsi driver then attempts to access the
> > > reuest queue that doesnt exist i never did manage to find out
> > > where the request get removed from the queue though.
> >
> > Your explanation doesn't quite make sense, but I can take a look at the
> > problem :-)
> >
> > What kernel is the below oops from? What compiler?
>
> i can trigger this on any 2.4.x series kernel.
> -> Insert dmaged / lightly scratched cd into drive
> dd /dev/scd0 bs=8192k of=file
> wait for opps.
> opps also cd tries to re read several times
> short hang then the following output
>
> gcc versions.
> Whatever shits with redhat 7.1 + 7.2 + 7.3 and the
> updates between them in each of the redhat versions.
> but normally
> Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
> gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98)
>
> or
> Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
> gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113)

weee ok not my choice for compilers, but probably alright. do me a favor
then:

# cd /to/kernel/source
# rm drivers/scsi/ide-scsi.o
# EXTRA_CFLAGS=-g make drivers/scsi/ide-scsi.o
# objdump -S drivers/scsi/ide-scsi.o > /tmp/some_file

and then mail me some_file (privately), thanks.

--
Jens Axboe

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