Is there anyone working in the area of linux/fs/buffer.c where the I/O buffer
for disk ( ide/scsi ) is not locked ? My system is history when this happens,
albeit no panik happens!
gat
Any hints as to how to backtrace to error to the broken scsi/ide drivers ?
buffer.c:
/* This is a temporary buffer used for page I/O. */
page = mem_map + MAP_NR(bh->b_data);
if (!PageLocked(page))
goto not_locked;
Uncle George wrote:
> This also happens with stock 2.2.14 .
>
> Uncle George wrote:
>
> > >
> >
> > I got 2.2.13 on an smp/i386 system. there is also an onboard adaptec 2940
> > (type) scsi & onboard eide.
> > When I tar cf - mozilla | ( cd /mnt; tar xf - ) ( from drive = scsi , to
> > drive = ide )
> > i will usually get a panik of the type
> >
> > Whoops: end_buffer_io_async: async i/o complete on
> > unlocked page
> > or
> > Unable to handle NULL pointer dereference at virtual
> > address 00000040
> > ( with a whole lot of displayed info not logged )
> >
> > Any one into this particular kernel feature ?
> >
> > gat
> >
> > -
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