Re: 2.6.0-test2-bk3 phantom I/O errors

[Sander van Malssen <svm@kozmix.org>]

On Wednesday, 30 July 2003 at 21:11:15 +0200, Sander van Malssen wrote:

> On Wednesday, 30 July 2003 at 12:00:02 -0700, Andrew Morton wrote:
> 
> > OK, looks like the new readahead stuff confused the error reporting.
> > 
> > Does this make the error messages go away?
> > 
> > 
> > diff -puN mm/readahead.c~a mm/readahead.c
> > --- 25/mm/readahead.c~a	2003-07-30 11:58:07.000000000 -0700
> > +++ 25-akpm/mm/readahead.c	2003-07-30 11:58:20.000000000 -0700
> > @@ -96,7 +96,7 @@ static int read_pages(struct address_spa
> >  	struct pagevec lru_pvec;
> >  	int ret = 0;
> >  
> > -	current->flags |= PF_READAHEAD;
> > +//	current->flags |= PF_READAHEAD;
> >  
> >  	if (mapping->a_ops->readpages) {
> >  		ret = mapping->a_ops->readpages(filp, mapping, pages, nr_pages);
> 
> That seems to have fixed it!


Well, that's funny. If I run a pristine test2-mm3-1 kernel I don't get
those "Buffer I/O error on device ..." kernel messages anymore, but I do
get the actual I/O error itself.

Putting that dump_stack() call back into buffer_io_error() doesn't
trigger a stack dump either. Different bug perhaps?


Cheers,
Sander

-- 
     Sander van Malssen -- svm@kozmix.org -- http://www.kozmix.org/
      http://www.peteandtommysdayout.com/ -- http://www.1-2-5.net/