ucom panic

[Hans Petter Selasky]

On Tuesday 04 November 2008, Steve Franks wrote:
> On Thu, Oct 30, 2008 at 1:54 PM, Steve Franks <stevefranks at ieee.org> wrote:
> > On Wed, Oct 29, 2008 at 5:31 PM, M. Warner Losh <imp at bsdimp.com> wrote:
> >> In message:
> >> <539c60b90810291648l7567b974h8e0999a66971495b at mail.gmail.com>
> >>
> >>            "Steve Franks" <stevefranks at ieee.org> writes:
> >> : Perhaps someone can make sense of my backtrace, this is a ucom causes
> >> : a panic, but only when I open it from one specific program.  If I talk
> >> : to the ucom with minicom, no issues.  That aside, a panic when talking
> >> : to any serial port with any program would be considered a bug, right?
> >>
> >> Is there any way you could boot a -current kernel?  I think this is a
> >> bug I fixed in -current, but maybe didn't back merge to 7...
> >>
> >> Warner
> >
> > I have a rather older amd64 kernel that didn't do it until I rebuilt
> > the day before yesterday (now that's bad luck), and my internal umass
> > drive seems to panic both (amd64 & i386) pretty reliably...is there a
> > fresbie for current?  I suppose the regular snapshot CD would be
> > sufficient as well, right?
> >
> > How about the stability of the rest of current?  This is my work
> > desktop, and all my files are offsite, so I'm not too concerned about
> > weekly reliability, if I get better hw support day-to-day...do you run
> > current on any of your workstations?
> >
> > Alternatively, is there a patch for 7-stable?  My work is as an OEM,
> > and all our devices get programmed over a ucom bootloader.  I'm pretty
> > much stuck until this is fixed...
> >
> > Steve
>
> So, no real luck installing 8, I don't have an extra disk at the
> moment to put it on.  I'm really interested in this patch, however.
> Is this the same as the new USB4BSD, or USB2 that I've been hearing
> about?  Can I patch my 7.1 with it?  That would be easier for me to
> test out.
>
> Steve

Hi,

If you compile a FreeBSD 8 kernel with:

options         COMPAT_FREEBSD7

It should pretty much work if you then copy the resulting kernel and modules 
to your FreeBSD 7 /boot/kernel directory.

--HPS