Re: [Xenomai-help] Almost running - kernel BUG in add_preempt_count at kernel/sched.c:2819!

[Philippe Gerum <rpm@xenomai.org>]

Gary Wallace wrote:
>   Thanks for the Makefile patch.  The kernel successfully compiles
> with the tracer enabled after applying this.  Unfortunately I am now
> getting a different error at boot time.
> 
>   The image file downloads and starts executing but fails with:
> 
> Uncompressing Linux...inflate returned FFFFFFFB
> exit

Try lowering CONFIG_IPIPE_TRACE_SHIFT to 12.

> 
> Gary
> 
> ------------------------------------
> 
> 
>>Date: Tue, 23 May 2006 16:51:14 +0200
>>From: Philippe Gerum <rpm@xenomai.org>
>>
>>Gary Wallace wrote:
>>
>>>  I've attached first the config file used without the motorola
>>>patches, and then the config file used with a motorola patched
>>>kernel.
>>
>>Try this:
>>
>>--- arch/ppc/boot/Makefile~	2006-01-31 07:52:07.000000000 +0100
>>+++ arch/ppc/boot/Makefile	2006-05-23 16:49:46.000000000 +0200
>>@@ -13,6 +13,14 @@
>> CFLAGS	 	+= -fno-builtin -D__BOOTER__ -Iarch/$(ARCH)/boot/include
>> HOSTCFLAGS	+= -Iarch/$(ARCH)/boot/include
>>
>>+ifdef CONFIG_IPIPE_TRACE
>>+# do not trace the boot loader
>>+nullstring :=
>>+space      := $(nullstring) # end of the line
>>+pg_flag     = $(nullstring) -pg # end of the line
>>+CFLAGS     := $(subst ${pg_flag},${space},${CFLAGS})
>>+endif
>>+
>> BOOT_TARGETS	= zImage zImage.initrd znetboot znetboot.initrd
>>
>> bootdir-y			:= simple
>>
>>-- 
>>
>>Philippe.
>>
> 
> 


-- 

Philippe.