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SubjectRE: [patch] bugfix for fs/proc/array.c FIXME tasklist_lock
Apologies - it is me who needs man dd, so it seems.
(I thought "b" - bytes, not 512b blocks!).

Yes, reading 1bytes-at-atime is also a problem.

Regards,
Tigran.

On Mon, 15 Mar 1999, Tigran Aivazian wrote:

> short answer - man dd.
> long answer - dd if=/proc/sys/kernel/modprobe of=/tmp/out bs=1b count=20
>
> Regards,
> Tigran.
>
> On Mon, 15 Mar 1999, Tim Waugh wrote:
>
> > On Mon, 15 Mar 1999, Tigran Aivazian wrote:
> >
> > > There are many regular files in /proc. Many of them contain data that
> > > can be treated as "record oriented". But they are not, because it was
> > > easy enough to implement them as proper regular files (i.e. a stream
> > > of bytes, NO records).
> >
> > Try reading/writing them a byte at a time some day. For instance:
> >
> > dd if=/proc/sys/kernel/modprobe of=/tmp/out bs=1 count=20
> > cat /proc/sys/kernel/modprobe
> >
> > These give different results for me. This is a more serious problem than
> > the one you are complaining about.
> >
> > > For /proc/<pid>/maps it is not easy to do that. And now you tell me
> > > that it is "intentional"? No, its just an excuse, although a valid and
> > > good one. Good, but not perfect. Yet Linux is.
> >
> > If your program can't cope with read() returning less data than you asked
> > for even though more exists, your program needs fixing. man 2 read.
> >
> > Tim.
> > */
> >
>
>
>


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