On 10/29/2010 11:04 AM, Belisko Marek wrote: > On Fri, Oct 29, 2010 at 10:50 AM, Marc Kleine-Budde wrote: >> On 10/29/2010 10:45 AM, Belisko Marek wrote: >>> HI Baruch, >>> >>> On Fri, Oct 29, 2010 at 10:34 AM, Baruch Siach 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 >>>> 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@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@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 >> >> do you have a "MEM=32" on your command line? > Well I add it but same result: BTW: It must be "mem=", in lowercase, but you did this. What I was meant to ask was, if you forget to add the "M" to "32". Because with mem=32 you tell Linux just to use 32 bytes of memory. Maybe your ATAGs are broken, Linux might not see the whole RAM or any if it. Cheers, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |