Re: Crash issue when loading vmcore

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----- "Paul-Kenji Cahier Furuya" <pkc@xxxxxxxxxxxx> wrote:

> I tried with the system map, but it did not help, still got the same error.
> 
> I am pretty sure I didn't recompile after installing the kernel, see:
> $ ll /boot/vmlinuz-2.6.35.3-saber /usr/src/linux-2.6.35.3/arch/x86 /boot/bzImage vmcore.201008232109
> -rw-r--r-- 1 root root 3982336 Aug 23 21:03 /boot/vmlinuz-2.6.35.3-saber
> -rw-r--r-- 1 root root 3982336 Aug 23 21:02 /usr/src/linux-2.6.35.3/arch/x86/boot/bzImage
> -r-------- 1 root root 995686196 Aug 23 21:10 vmcore.201008232109
> 
> I also tried many times with many crashdumps and it never seemed to 
> work. Could the stripping or bzImage'ing change something?
> I would try directly the vmlinux kernel, but it's over 120MB and my boot 
> partition is smaller than that.
> Maybe there's some kernel options that change something in the bzImaged 
> vmlinux?
 
The vmlinuz file is a compressed, stripped-down, and otherwise-manipulated
file that is created from the /usr/src/linux-2.6.35.3/vmlinux file -- which
is the file that crash requires. 

And the vmlinux-to-bzImage process would not change the compiled-in
kernel virtual addresses that you see if you do this:

 # nm -Bn /usr/src/linux-2.6.35.3/vmlinux

If it does, then that's news to me...

Dave





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