Re: kernel crash - howto debug

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On Friday, June 11, 2010 04:54:15 pm rohit vashist wrote:
> Hi,
> 
> Are you sure that your TFTP and NFS client have been configured.Are you
> getting these following messages when you boot your board :-
> 

Yes i get these messages :

RD-DX107-48F4G-C>> run kerneltftp_flash
SK98#0: network connection up using port A
    speed:           100
    autonegotiation: yes
    duplex mode:     full
    flowctrl:        local send
    irq moderation:  disabled
Using SK98#0 device
TFTP from server 160.75.x.x; our IP address is 160.75.x.x
Filename 'uImage'.
Load address: 0x400000
Loading: *\0x08T 
#################################################################
\0x09 #################################################################
\0x09 #################################################################
\0x09 #################################################################
\0x09 #################################################################
\0x09 ##############################
done
Bytes transferred = 1816036 (1bb5e4 hex)
## Booting image at 00400000 ...
   Image Name:   Linux-2.6.12-arm1
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1815972 Bytes =  1.7 MB
   Load Address: 00008000
   Entry Point:  00008000
   Verifying Checksum ... OK
OK


> Bytes transferred = 1421464 (15b098
> hex)
> 
> ## Booting image at 82000000
> ...
> 
>    Image Name:   Linux-2.6.12
> 
> 
>    Image Type:   ARM Linux Kernel Image
> (uncompressed)
> 
>    Data Size:    1421400 Bytes
> =1.4MB
> 
>    Load Address:
> 80008000
> 
>    Entry Point:
> 80008000
> 
>    Verifying Checksum ... OK
> 
> This will confirm that your uimage has been loaded properly.Can you confirm
> this?
> 
> On Thu, Jun 10, 2010 at 7:39 PM, makkalot <makkalot@xxxxxxxxx> wrote:
> > On Thursday, June 10, 2010 05:20:32 pm Vaughn Clinton wrote:
> > > what's the kernel cmdline look like .. that would be helpful ...
> > 
> > Hi ,
> > 
> > bootargs=console=ttyS0,115200 init=/linuxrc root=/dev/mtdblock0
> > rootfstype=jffs2 ip=160.75.x.x:160.75.x.x$(bootargs_end);
> > bootargs_end=:::DB88FXX81:egiga0:none
> > 
> > > > From: makkalot@xxxxxxxxx
> > > > To: kernelnewbies@xxxxxxxxxxxx
> > > > Subject: kernel crash - howto debug
> > > > Date: Thu, 10 Jun 2010 16:53:26 +0300
> > > > 
> > > > Hi,
> > > > 
> > > > i'm triyng to power up an ARM based embedded board. I applied the
> > 
> > patches
> > 
> > > > manifacturer supplied to me (to kernel), cross compiled the kernel
> > > > with toolchain that they gave. And when i boot the machine i get
> > > > just :
> > > > 
> > > > Starting kernel ...
> > > > 
> > > > Uncompressing
> > 
> > Linux....................................................................
> > 
> > > > .................................................... done, booting
> > > > the kernel.
> > > > 
> > > > And kernel freezes, no other message is displayed after that. I'm
> > > > using kernel 2.6.12, any ideas how can i see what is going on? Is
> > > > there a way to get some debugging info to see what the problem is?
> > > > Thanks in
> > 
> > advance
> > 
> > > > ....
> > > > 
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