kernel boot failure on with s32440/mini2440 with git head (dd59f6c76b2)

[ben@simtec.co.uk (Ben Dooks)]

Uri Yosef wrote:
> On Mon, Jan 4, 2010 at 6:31 PM, Ben Dooks <ben@simtec.co.uk> wrote:
>> Gaye Abdoulaye Walsimou wrote:
>>> M P wrote:
>>>> On Mon, Dec 21, 2009 at 1:10 PM, Juergen Beisert <jbe@pengutronix.de> wrote:
>>>>
>>>>> On Sonntag, 20. Dezember 2009, Gaye Abdoulaye Walsimou wrote:
>>>>>
>>>>>> Hello list,
>>>>>> I have here a boot Oops (see below) with the latest git revision of
>>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git,
>>>>>> which does not happen with 2.6.32.
>>>>>> Thanks in advance for comments.
>>>>>> Regards
>>>>>>
>>>> I have a patch in my git that related to that :
>>>> http://repo.or.cz/w/linux-2.6/mini2440.git/commit/db47bd31f00a06370795a9d94ed973f78060841a
>>>>
>>>> I need to push that to the list as soon as I rebase on 2.6.33.
>>>>
>>>> Michael
>>>>
>>> Dear all,
>>> It is this[1] commit which breaks mini2440 board, reverting its changes
>>> in mini2440 code make things working again.
>>> By the way Michel, as you're mini2440 maintainer, why there is no pull
>>> requests for changes in your repository [2]
>>> (for example
>>> http://repo.or.cz/w/linux-2.6/mini2440.git/commit/db47bd31f00a06370795a9d94ed973f78060841a)
>>> ?
>>>
>>> Best reagrads,
>>> AWG
>>>
>>> [1]  ARM: S3C: Add NAND device platform data set call:
>>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=2a3a18045b136487b22733d57410e6dccd34ac84
>>> [2] http://repo.or.cz/w/linux-2.6/mini2440.git
>> fix already sent for this. see for-linus/samsung tree on git.fluff.org
> 
> Dear all,
> 
> I still get the same issue with kernel 2.6.33-rc4 (see log).
> Any idea?
> 
> Regards,
> Uri Yosef
> 
> Uncompressing Linux... done, booting the kernel.
> Linux version 2.6.33-rc4 (uri at mylinux) (gcc version 4.4.1 (Sourcery
> G++ Lite 2009q3-67) ) #1 Wed Jan 13 16:00:38 IST 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
> CPU S3C2440A (id 0x32440001)
> S3C24XX Clocks, Copyright 2004 Simtec Electronics
> S3C244X: core 405.000 MHz, memory 101.250 MHz, peripheral 50.625 MHz
> CLOCK: Slow mode (1.500 MHz), fast, MPLL on, UPLL on
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
> Kernel command line: root=/dev/mtdblock3 console=ttySAC0,115200 mini2440=1tb
> PID hash table entries: 256 (order: -2, 1024 bytes)
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Memory: 64MB = 64MB total
> Memory: 61048KB available (3260K code, 351K data, 120K init, 0K highmem)
> SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> Hierarchical RCU implementation.
> NR_IRQS:85
> irq: clearing subpending status 00000002
> Console: colour dummy device 80x30
> console [ttySAC0] enabled
> Calibrating delay loop... 201.93 BogoMIPS (lpj=504832)
> Mount-cache hash table entries: 512
> CPU: Testing write buffer coherency: ok
> devtmpfs: initialized
> NET: Registered protocol family 16
> MINI2440: Option string mini2440=1tb
> MINI2440: 't' ignored, touchscreen not compiled in
> MINI2440: LCD 0:240x320 [1:800x480] 2:1024x768
> Unable to handle kernel NULL pointer dereference at virtual address 00000000
> pgd = c0004000
> [00000000] *pgd=00000000
> Internal error: Oops: 5 [#1]
> last sysfs file:
> Modules linked in:
> CPU: 0    Not tainted  (2.6.33-rc4 #1)
> PC is at memcpy+0x64/0x29c
> LR is at kmemdup+0x2c/0x34

This looks like a new issue to me, please compile your kernel
with sufficient debug information so that a full backtrace can
be generated and we can find out where this is happening.

-- 
Ben