[Crash-utility] Re: Cannot open dump when using 2G/2G memory split with 2.6.27.21 SMP x86 kernel
Hi
On Thu, May 28, 2009 at 11:06 AM, Tero Pirkkanen <tp(a)pirkkanen.net> wrote:
Hi again
Something was not right in my last post.
> <readmem: 8053f700, KVADDR, "kernel_config_data", 32768, (ROE),
97ab7f8>
..
> <readmem: 807348c0, KVADDR, "cpu_possible_map", 4, (ROE), 8430680>
..
Now after sending this mail, I noticed that the values from running
system that I
copy-pasted do not actually match to symbols from image.
# cat /proc/kallsyms |grep kernel_config_data
> 8053e700 r kernel_config_data
> # cat /proc/kallsyms |grep cpu_possible_map
....
> 807328c0 B cpu_possible_map
This was a problem in the kernel build process I use after all. I just
rebuilt the smp and smp-syms kernels form the same sources (only
difference is CONFIG_DEBUG_INFO) and objdump shows that the addresses
in the symbol table differs. (8053f700 vs. 8053e700 for
kernel_config_data).
For some reason the other configuration combinations produced a correct result.
There is nothing wrong in crash, so I must apologize again for these
unnecessary posts.
Well, at least I learnt something new...
Errare humanum est,
Tero