Re: Backup issues with OpenBSD 4.5 machines

Subject:

From:

To:

"Dustin J. Mitchell" <dustin AT zmanda DOT com>

Date:

Wed, 2 Sep 2009 11:07:58 -0600

I modified sendbackup-dump.c to run ktrace, e.g.:
"/usr/bin/ktrace -id -t censw -f /tmp/sendbackup.trc /sbin/dump 0usf 1048576 - /dev/rsd0d"

Unfortunately, I don't get a backup, even with the patch applied. The trace output shows write errors because of a broken pipe with or without the patches, like this:
21835 dump CALL write(0x2,0x53fbec,0x8)
21835 dump RET write -1 errno 32 Broken pipe
So I suspect my approach is not correct. Any other ideas how I might get some useful trace output?

Thanks,
Michael

On Tue, Sep 1, 2009 at 1:25 PM, Dustin J. Mitchell <dustin AT zmanda DOT com> wrote:

On Tue, Sep 1, 2009 at 3:18 PM, Jean-Louis

Martineau<martineau AT zmanda DOT com> wrote:

> I have nothing else to try.
> The order of system call is a follow:

If it's not too hard, it would be nice to have a ktrace or equivalent
of this, first to look at here, and second to take to the OpenBSD
list. I know that's tricky since this is a daemon process..

Dustin

--
Open Source Storage Engineer
http://www.zmanda.com

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