Re: dd bug

[Paul Eggert]

address@hidden writes:

> dd if=/dev/zero of=obj/kern/bochs.img~ count=10000 2>/dev/null
> /bin/sh: line 1:  5952 Segmentation Fault dd if=/dev/zero 
> of=obj/kern/bochs.img~ count=10000 2>/dev/null

I don't observe this bug.  Perhaps it's a bug in your operating system,
outside of 'dd'?  I'm afraid you'll have to dig into it more.

You might try running
"strace -o tr dd if=/dev/zero of=obj/kern/bochs.img~ count=10000"
and seeing which system call is executed just before the failure.
Or you can use a debugger on your 'dd' executable.

Here's what happens for me:

$ dd if=/dev/zero of=obj/kern/bochs.img~ count=10000 2>/dev/null
$ ls -l obj/kern/bochs.img~
-rw-r--r-- 1 eggert eggert 5120000 Aug 22 13:20 obj/kern/bochs.img~
$ dd --version
dd (coreutils) 6.1
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software.  You may redistribute copies of it under the terms of
the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.

Written by Paul Rubin, David MacKenzie, and Stuart Kemp.