ddb scripts now load by default
Alfred Perlstein
alfred at freebsd.org
Mon Apr 21 19:22:57 UTC 2008
* Brooks Davis <brooks at freebsd.org> [080421 12:20] wrote:
> On Mon, Apr 21, 2008 at 11:55:57AM -0700, Alfred Perlstein wrote:
> > I know this is a big step forward in a lot of ways, but it's also
> > a big step backwards for people used to how things just work.
> >
> > Can we somehow put a "press a key to abort reboot" option in that
> > script before acting on it?
>
> echo 'ddb_enable="NO" >> /etc/rc.conf
See, that's not really what I asked for. :)
but it's OK.
-Alfred
>
> -- Brooks
>
> > -Alfred (who thinks this is really cool, but wants to be able to
> > debug kernels without having to learn and disable something
> > new)
> >
> > * Brooks Davis <brooks at freebsd.org> [080421 11:24] wrote:
> > > I've changed the default value of ddb_enable to YES so we now load ddb
> > > scripts from ddb.conf by default. Developers expecting to perform
> > > active deugging should add ddb_enable=NO or change the script to not
> > > perform at textdump and reboot the machine.
> > >
> > > This is another step toward hopefully shipping 8.0 with DDB built
> > > in and generating useful crash dumps. The security implications of
> > > doing so need to be carefully considered and in particular the GENERIC
> > > kernel will probably want to be shipped with at least the options
> > > DDB_UNATTENDED and SC_DISABLE_KDBKEY.
> > >
> > > The fact that the watchdog driver changes it's behavior based on
> > > DDB_UNATTENDED is probably a bug that should be fixed.
> > >
> > > -- Brooks
> > >
> > > ----- Forwarded message from Brooks Davis <brooks at FreeBSD.ORG> -----
> > >
> > > From: Brooks Davis <brooks at FreeBSD.ORG>
> > > Date: Mon, 21 Apr 2008 18:18:00 +0000 (UTC)
> > > To: brooks at FreeBSD.ORG
> > > Subject: [src] cvs commit: src/etc/defaults rc.conf
> > >
> > > brooks 2008-04-21 18:17:48 UTC
> > >
> > > FreeBSD src repository
> > >
> > > Modified files:
> > > etc/defaults rc.conf
> > > Log:
> > > Change the default of ddb_enable to YES so we default to generating textdumps
> > > on panic. This means you get a potentially useful dump even if your system
> > > is running X when you panic.
> > >
> > > X-MFC after: never
> > >
> > > Revision Changes Path
> > > 1.332 +1 -1 src/etc/defaults/rc.conf
> > > _______________________________________________
> > > cvs-all at freebsd.org mailing list
> > > http://lists.freebsd.org/mailman/listinfo/cvs-all
> > > To unsubscribe, send any mail to "cvs-all-unsubscribe at freebsd.org"
> > >
> > >
> > > Index: src/etc/defaults/rc.conf
> > > diff -u src/etc/defaults/rc.conf:1.331 src/etc/defaults/rc.conf:1.332
> > > --- src/etc/defaults/rc.conf:1.331 Sun Apr 20 20:37:20 2008
> > > +++ src/etc/defaults/rc.conf Mon Apr 21 18:17:48 2008
> > > @@ -33,7 +33,7 @@
> > > apm_enable="NO" # Set to YES to enable APM BIOS functions (or NO).
> > > apmd_enable="NO" # Run apmd to handle APM event from userland.
> > > apmd_flags="" # Flags to apmd (if enabled).
> > > -ddb_enable="NO" # Set to YES to load ddb scripts at boot.
> > > +ddb_enable="YES" # Load ddb scripts at boot.
> > > ddb_config="/etc/ddb.conf" # ddb(8) config file.
> > > devd_enable="YES" # Run devd, to trigger programs on device tree changes.
> > > devd_flags="" # Additional flags for devd(8).
> > >
> > >
> > > ----- End forwarded message -----
> >
> >
> >
> > --
> > - Alfred Perlstein
> > _______________________________________________
> > freebsd-arch at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-arch
> > To unsubscribe, send any mail to "freebsd-arch-unsubscribe at freebsd.org"
> >
--
- Alfred Perlstein
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