kernel hangs at my_console_write

Navin Boppuri navin.boppuri at
Tue Aug 7 02:48:41 EST 2001

I dont think I use embed_config since I use the binary kernel
(vmlinux.gz). I dont use zImage. PPCBoot passes all this info to the

But I guess, there are still places in the kernel where it expects Mhz.
By some parts in the kernel, due you mean somewhere in the uart.c init

Thank you,

-----Original Message-----
From: Elan Feingold [mailto:elan at]
Sent: Monday, August 06, 2001 11:37 AM
To: Linuxppc-Embedded (E-mail)
Subject: RE: kernel hangs at my_console_write

> I am using the Hardhat 1.2 kernel from MVista on my custom board with
> MPC855T. The kernel executes and hangs at my_console_write routine.

We were using a slightly different kernel (2.4.5 + patches), but we saw
hang in console_write when we didn't have our Baud Rate Generator clock
frequency correct.  In the version we were using, the numbers in
embed_config() seemed to indicate that Hz were desired, but after
around, we saw that some parts of the kernel wanted Mhz.  Once we fixed
that, we got console output and things worked.

Hope this helps,


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