Re: cannot run savecore

[Andrew Doran <ad%netbsd.org@localhost>]

On Fri, Feb 01, 2008 at 04:29:50PM +0000, Steven M. Bellovin wrote:

> On amd64, recent kernels, I get:
> 
>       # savecore -z /var/crash
>       savecore: /netbsd: kvm_openfiles: /dev/wd0b: Device busy
> 
> I even tried booting an install CD, mounting wd0a, and
> running /mnt/rescure/savecore, but it complained that it couldn't find
> device 33/950318.  (Aside: shouldn't savecore have an option to point
> to the dump device that was used?)
> 
> I'm running now without swap, in the hope that I can somehow save that
> file -- I have 3GB, so I should be able to last for a while...

Multiple concurrent opens of a block device are now prevented. If you update
your libkvm and savecore, you'll get a savecore that reads from the raw
device (making this error go away).

Andrew