[U-Boot-Users] LinuxPostMortemAnalysis only smells like DEADBEEF

[Clemens Koller]

robert lazarski schrieb:
 > Hi Clemens, maybe I can help you this time ;-) . I just so happen to
 > be running 85xx / 2.6.23 /  latest u-boot also have serial port
 > problems - though in my case its intermittent. I've been able to get
 > output once every 20 times or so. However, I can always get the
 > messages from "__log_buf" . In my case, my log buf is 2a0f24 . So I
 > execute:
 >
 > => md 2a0f24 700
 > deadbeef is the magic value from u-boot that is used to init memory,
 > and 003b2ea8 doesn't seem right considering I'm using the same kernel.

I'm using 2.6.23.1 and would expect the __log_buf address to
change with varying kernel configuration.

Can you please send me your kernel .config to verify some stuff.
(off-list, I think) I am currently building the latest paulus.git
to check my mileage with that tree...

The next step is to kick u-boot's memory wipe out of the way.
(AFAIK it sets up a DMA channel to wipe the available RAM...)
...and to setup the PRAM command (Protect RAM) which might be
useful here.

 > As for my problems, I'm waiting for my hardware guys to give me a
 > second serial port to try out kgdb. I've been using just printk's for
 > now, but I just got my bdi back so I might know more soon. Maybe we
 > could help each other.

I would be interested in the kgdb stuff as well... once it's working 8-)

Well, talk to you tomorrow.
Regards,

Clemens Koller
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