Auto doadump()
John Baldwin
jhb at freebsd.org
Fri Jun 4 12:27:45 UTC 2010
On Thursday 03 June 2010 9:45:56 pm Garrett Cooper wrote:
> On Thu, Jun 3, 2010 at 2:30 PM, David Rhodus <sdrhodus at gmail.com> wrote:
> > Is there a rc.conf variable to automatically save core on a panic and
reboot ?
> > Setting dumpdev="AUTO" doesn't seem to do the trick.
> >
> > # uname -a
> > FreeBSD 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Thu Jun 3 20:00:22 UTC
> > 2010 root@:/usr/obj/usr/src/sys/GE amd64
>
> dumpdev=AUTO in rc.conf has been broken for a while from what I've
> seen, despite what rc.conf(5) suggests:
>
> dumpdev (str) Indicates the device (usually a swap partition) to
> which a crash dump should be written in the event of a system
> crash. If the value of this variable is ``AUTO'', the first
> suitable swap device listed in /etc/fstab will be used as
> dump device. Otherwise, the value of this variable is passed
> as the argument to dumpon(8). To disable crash dumps, set
> this variable to ``NO''.
>
> You have to explicitly note the dump device in /boot/loader.conf and
> have to reboot the box (otherwise it won't pick up the appropriate
> value via kenv). Kind of lame if you ask me...
Err, how is it broken? It just worked for me just now on a box running HEAD.
--
John Baldwin
More information about the freebsd-current
mailing list