On Tuesday 29 August 2006 19:35, Jon Escombe wrote:
> Rafael J. Wysocki wrote:
> 
> > Thanks.
> > 
> >> http://www.dresco.co.uk/debug/resume_from_disk.jpg
> > 
> > This one indicates that page tables are corrupted in the restore loop, just
> > like it used to happen on x86_64 some time ago.
> > 
> > Can you confirm that it doesn't happen if HIGHMEM64 is not set?
> 
> Confirmed, only happens with HIGHMEM64G.
> 
> > 
> >> http://www.dresco.co.uk/debug/suspend_e820_patch.jpg
> > 
> > This one is really strange, like a miscompilation or something.
> > 
> > Could you identify which line of code corresponds to count_data_pages+0x38
> > (using gdb)?
> 
> Would be happy to, may need a pointer in the right direction though?

If you have compiled the kernel with debug info (CONFIG_DEBUG_INFO=y), go to
the directory where your kernel sources are and run

$ gdb vmlinux

and then

(gdb) l *count_data_pages+0x38

[If your kernel is not compiled with debug info, you'll need to recompile it
and retest to verify if the address where it crashes is still the same.]

> Btw, I also raised the question on lkml, however I had to post from 
> gmane so couldn't copy in this list. Someone else has confirmed the same 
> issue on an X60s - 
> http://marc.theaimsgroup.com/?l=linux-kernel&m=115683494518851&w=2

Yup, thanks.

Greetings,
Rafael


-- 
You never change things by fighting the existing reality.
                R. Buckminster Fuller

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