On Fri, Sep 5, 2014 at 7:54 AM, John Baldwin <j...@freebsd.org> wrote:
> Probably at least 50% of the time when I work with a user on a bug report,
> I ask them to go into kgdb and run specific commands to extract more detailed
> info (print some struct, etc.).

Sure, I understand, but you are not working with every user who
encounters a kernel panic in FreeBSD.  For the average or casual
FreeBSD user, such as desktop
users of FreeBSD or PC-BSD, wouldn't it be better
to have ddb_enable="YES" be the default in FreeBSD?  The ddb script
there does a fairly reasonable
job of gathering some useful info which can be analyzed later, and
then rebooting the box.

For more expert users, or people developing products, they can set
and do more advanced debugging.  Or hook into /etc/rc.d/ddb and define
a different
ddb script which doesn't do textdumps on kernel panic.

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