David,

I tried 'dump -0f - /dev/wd0e > /mnt/dump.fs' and it worked well. When I
split the dump and restore operations yesterday, the dump was OK but the
restore failed.

I am planning to upgrade the system to 1.4.2 soon. I may try this today
and report back here.

Thanks.

On Thu, 27 Apr 2000, David Brownlee wrote:
> 	Don't know if I can be any help here, but just a couple of random
> 	ideas:
> 	   - do you get the panic from 'dump -0f - /dev/wd0e > /mnt/dump.fs'
> 	   - have you tried ti with a 1.4.2 kernel (should not need to
> 	     change anything else for the test)
> 
> 		David/absolute
> 
> On Thu, 27 Apr 2000, Marinier, M. Claude, G. wrote:
> > Hi, I am running NetBSD 1.4.1 on i386 (Intel PD440FX, Pentium II).
> > 
> > Problem:
> > 
> > I was copying a file system with a dump/restore pipe as follows.
> > 
> > 	newfs /dev/wd1e
> > 	mount /dev/wd1e /mnt
> > 	cd /mnt
> > 	dump -0f - /dev/wd0e | restore -rf
> > 
> > When the system hung, I went to the console and found that fsck had failed
> > on reboot after a panic.
> > 
> > 	Apr 27 12:56:14 behemoth savecore:
> > 		reboot after panic: lockmgr: locking against myself
> > 
> > I assumed that I had messed-up the file system before copying. I tried
> > again and got a different panic.
> > 
> > 	Apr 27 13:08:41 behemoth savecore:
> > 		reboot after panic: ffs_alloccg: map corrupted
> > 
> > This may be because I was copying from a live system. I then did a dump to
> > disk followed by a restore from disk. I got the same panic again.
> > 
> > 	Apr 27 14:09:14 behemoth savecore:
> > 		reboot after panic: ffs_alloccg: map corrupted
> > 
> > The last time the system died, there was an error message about an
> > interrupt but I cannot find it in the log files.
> > 
> > Question:
> > 
> > I have done this sort of operation many times. I moved the same system to
> > a new disk earlier this week without a problem. I do not know what is
> > going on here.
> > 
> > At this point, I could speculate wildly but it would not be very useful.
> > One of you can probably help me.

-- 
Claude Marinier, Information Technology Group    claude.marinier@dreo.dnd.ca 
Defence Research Establishment Ottawa (DREO)    (613) 998-4901  FAX 998-2675
3701 Carling Avenue, Ottawa, Ontario  K1A 0Z4         http://www.dreo.dnd.ca