[SerialICE] Reset troubles with Coreboot image
Myles Watson
mylesgw at gmail.com
Thu Jul 1 00:52:52 CEST 2010
> From: Joseph Smith [mailto:joe at settoplinux.org]
> On 06/30/2010 05:57 PM, Myles Watson wrote:
> > On Wed, Jun 30, 2010 at 3:47 PM, Arne Georg Gleditsch
> > <arne.gleditsch at numascale.com> wrote:
> >> On 30. juni 2010 00:55, Myles Watson wrote:
> >>>
> >>> My s2895 doesn't do a soft reset correctly with the coreboot image,
> >>> but it does with the factory image. Have you seen that problem? It
> >>> seems strange, because the "Reset triggered" message still shows up,
> >>> along with "Rebooting the emulated CPU", but then I get Readback
> >>> errors. I patched SerialICE to redo the handshake on reset, but that
> >>> doesn't help.
> >>>
> >>> I think I'm getting closer, but if someone has already seen something
> >>> similar or has suggestions...
> >>
> >> I saw something similar with the HP board I ported, turned out to be
> the
> >> IPMI BMC hijacking the serial port at soft reset. Not sure exactly
> what
> >> conditions triggered it, but I got it sorted by disabling the IPMI
> serial
> >> port CLI using ipmitool or something similar. Let me know if this
> sounds at
> >> all likely with your setup, and I'll dig some more.
> >
> > I don't think my board has IPMI. It seems to be triggered by changing
> > the HyperTransport widths. If I leave it in 8-bit mode it doesn't
> > quit. Unfortunately that's not OK, so I'm still trying to narrow it
> > down.
> >
> Myles,
> What do you mean by quit?
When it gets to a soft reset, the serial link starts having read back
errors.
> My 830M boards just quit/stop/halt at certian
> points (seems to always at same places) also with the recent versions of
> serialice.
Does the factory BIOS have the same behavior?
> They used to work great with the first publicly released
> versions of serialice. If I cycle the power real quickly it continues
> on. I am not sure what changed but if this sounds like your problem too,
> try a earlier version. I am curious to hear your results.
That sounds like it could be a different problem. The factory BIOS works
fine for me with the latest version of SerialICE. I tried earlier versions
and had some problems.
I wonder if the filters that have gotten added are taking away some I/O that
you need. Have you tried removing the parts of serialice.lua that don't
apply to your board?
Thanks,
Myles
More information about the SerialICE
mailing list