ifconfig on re0 panics Toshiba Satellite M115-S3094 with RealTek 8101E chipset

Sepherosa Ziehau sepherosa at gmail.com
Fri Dec 15 04:29:22 PST 2006

On 12/15/06, Joe Talbott <josepht at cstone.net> wrote:
On Thu, Dec 14, 2006 at 08:22:06PM +0800, Sepherosa Ziehau wrote:
> On 12/14/06, Joe Talbott <josepht at cstone.net> wrote:
> >Okay.  I've learned a little more about this.  If I power down the
> >laptop and leave it off for a few minutes then power it up, login and
> >ifconfig re0 ... it panics.  I got a core dump with 'call dumpsys',
> >'panic' didn't work.  Next I entered 'reset' at the db> prompt.  I
> >logged in again and ifconfig re0 ... and it panics again.  Same db>
> >stuff as before and reset.  This time everything hangs after ifconfig
> >re0 ....  Power cycle and then I can ifconfig re0 ... and pass
> >traffic.  I did this all again (i.e. 2 panics, a hang, then open
> >sesame) to verify the process.  I have uploaded the kernel and vmcore
> >files for the panics onto leaf.dragonflybsd.org:/home/josepht/crash/.
> Two panics are in the same place (outl), so I suspect this may be the
> effect of writing to some reserved hardware registers.  Please test
> following patch:
> http://leaf.dragonflybsd.org/~sephe/re2.diff
Same as before... Cold Boot -> Panic -> Panic -> freeze -> Network UP.
kernel.[78] and vmcore.[78] are here:
Kernel paniced when it wrote a valid hardware register with a valid
value :-(, so I suspect something is wrong before this "valid"
writing.  Please test this patch:
Best Regards,
Live Free or Die

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