current kernel say "Unaligned kernel access on behalf"

current kernel say "Unaligned kernel access on behalf"

[Kuninori Morimoto]

Hi all

I tried current Paul's git
and it say a lot of error/warning after network working.
following is log

----- log -----------------------
(snip)
RPC: Registered tcp transport module.
/opt/usr/src/WORK/morimoto/gitlinux/sh-2.6/drivers/rtc/hctosys.c: unable to ope)
net eth0: attached phy 31 to driver SMSC LAN8700
Sending DHCP requests .
PHY: 0:1f - Link is Up - 100/Full
.
Unaligned kernel access on behalf of "swapper" pid=0 pc=0x882dcfc8 ins=0x882c
Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcfc8 ins=0x6362
Unaligned kernel access on behalf of "swapper" pid=0 pc=0x882dd012 ins=0x882a
Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dd012 ins=0x6176
Unaligned kernel access on behalf of "swapper" pid=0 pc=0x882dd014 ins=0x882a
...
----------------------------------

If I use after 7436cde6b2ca71049051620c68c26522bb3403bf
all say above

If I use 9a4af027a03e10e97f56081cd7dd1fda5282bd9c
It say
-------------------------------------------------
Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcf54 ins=0x6362   
Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcf9e ins=0x6176   
Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcfa0 ins=0x6276   
-------------------------------------------------

If I use c3144fc46f987413df10e83659f0bf1aad76f79e
It works well for me

what's happen ??

Re: current kernel say "Unaligned kernel access on behalf"

[Paul Mundt]

On Thu, Aug 27, 2009 at 10:36:58AM +0900, Kuninori Morimoto wrote:
> -------------------------------------------------
> Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcf54 ins=0x6362   
> Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcf9e ins=0x6176   
> Fixing up unaligned kernel access in "swapper" pid=0 pc=0x882dcfa0 ins=0x6276   
> -------------------------------------------------
> 
> If I use c3144fc46f987413df10e83659f0bf1aad76f79e
> It works well for me
> 
> what's happen ??

What happened is that I added a change that starts to report these fixups
for the kernel as well. Previously these were being just silently fixed
up. There is no change in functionality, they've just been added as a
debugging aid. Though in retrospect, KERN_NOTICE is probably the wrong
thing for kernel fixups, so I'll switch them over to KERN_DEBUG.

Re: current kernel say "Unaligned kernel access on behalf"

[Kuninori Morimoto]

Dear Paul

> What happened is that I added a change that starts to report these fixups
> for the kernel as well. Previously these were being just silently fixed
> up. There is no change in functionality, they've just been added as a
> debugging aid. Though in retrospect, KERN_NOTICE is probably the wrong
> thing for kernel fixups, so I'll switch them over to KERN_DEBUG.

OK. I understand.
Thank you

Best regards
--
Kuninori Morimoto