Re: dd hangs when attempting to access a tape drive

[Curt Blank]

Just curious, are you going to follow up and try to make it work again 
or let it go?

I see what you mean, the perl script does this:

read(3, "bbbbbb 2005-10-21T21:35:06-0500 "..., 4096) = 512

Then this:

write(1, "bbbbbb 2005-10-21T21:35:06-0500 ", 32) = 32


Jim Meyering wrote:
> Curt Blank <address@hidden> wrote:
>
> > Ok, it appears to definitely be a blocking factor issue.
>
> ...
>
> > So I'm starting to think it might not be dd problem in and of itself. My
>
> ...
>
> Thanks for the follow-up.
> I agree that this is almost certainly not a problem with dd itself.
>
> If you want to see why some other program (like tar or your perl
> script works), run it via strace and compare the actual read/write
> buffer sizes.