command bootu to start kernel

[Belisko Marek]

HI Baruch,

On Fri, Oct 29, 2010 at 10:34 AM, Baruch Siach <baruch at tkos.co.il> wrote:
> Hi Belisko,
>
> On Fri, Oct 29, 2010 at 10:20:46AM +0200, Belisko Marek wrote:
>> I have 2.6.32 kernel but early_printk isn't available and I enable
>> lowlevel debugging but
>> don't get nothing else on console. Anyway thanks.
>
> Try this patch to see the low level console output:
>
> commit 5c31454464ed655401c31c68c895b16eafd2bde5
> Author: Baruch Siach <baruch at tkos.co.il>
> Date:   Mon Jan 19 10:41:47 2009 +0200
>
>    arm, printk: the famous printascii() hack
>
> diff --git a/kernel/printk.c b/kernel/printk.c
> index 5052b54..d685f8a 100644
> --- a/kernel/printk.c
> +++ b/kernel/printk.c
> @@ -685,6 +685,10 @@ asmlinkage int vprintk(const char *fmt, va_list args)
>        /* Emit the output into the temporary buffer */
>        printed_len += vscnprintf(printk_buf + printed_len,
>                                  sizeof(printk_buf) - printed_len, fmt, args);
> +       {
> +               extern void printascii(const char *);
> +               printascii(printk_buf);
> +       }
>
>
>        /*
>
> --
>                                                     ~. .~   Tk Open Systems
> =}------------------------------------------------ooO--U--Ooo------------{=
>   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
>
Patch works like charm. Output from my kernel startup:

<5>Linux version 2.6.32-rc8 (open-nandra at linux) (gcc version 4.3.5
(Buildroot 2010.08-rc1) ) #14 Fri Oct 29 10:40:20 CEST 2010
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: MINI2440
Memory policy: ECC disabled, Data cache writeback
<7>On node 0 totalpages: 0
<1>bootmem alloc of 32768 bytes failed!
<0>Kernel panic - not syncing: Out of memory


thanks,

marek
-- 
as simple and primitive as possible
-------------------------------------------------
Marek Belisko - OPEN-NANDRA
Freelance Developer

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