Subject: Re: Problems with latest arm32 kernel
To: Eric Haszlakiewicz <firstname.lastname@example.org>
From: Richard Earnshaw <email@example.com>
Date: 02/27/2001 22:34:59
> On Tue, Feb 27, 2001 at 09:15:29PM +0000, Richard Earnshaw wrote:
> > > - The file system is failing to correctly fill small holes left in files
> > > on a seek() with zero.
> > Following up on this idea, I've written the following test program. I
> > believe the output of this should be a file consiting purely of 0's. On
> > my machine this is not the case and I get:
> ah! Perhaps this is the source of the gzip problems I've been
> having. Your script fails for me:
> NetBSD 1.5R (DIANA) #3: Wed Feb 14 23:13:01 CST 2001
> However, you can simplify the test program: anything which seeks
> beyond the end of the file will cause this behavior. I am
> quite reliably getting fragments of other files by writing
> one byte and seeking 4k beyond it.
I started off by always seeking to a 4k boundary and couldn't reproduce
the problem. Maybe it only occurs if the seek remains in the same block,
or if the seek is to a non-block boundary.