[Crash-utility] crash fails to load compressed RHEL5 vmcore

[Dave Anderson]

----- "marc pascual" <marc.m.pascual at gmail.com> wrote:

> Dave,
> 
> Thank you for your reply. However I'm slightly confused. the kernel
> version where I got the vmcore file is 2.6.18-92.1.10.el5 (x86_64).
> From my previous understanding, I should download and install
> kernel-debug-debuginfo-2.6.18-92.1.10.el5.x86_64.rpm. This package
> gives me 2.6.18-92.1.10.el5debug. However you mentioned that:
> 
> "They 2.6.18-92.1.10.el5 and 2.6.18-92.1.10.el5debug kernels are
> completely different kernels."
> 
> If this is the case, which package can I get
> 2.6.18-92.1.10.el5/vmlinux from? Assuming this is not the same kernel
> under /boot?

The short answer is: kernel-debuginfo-2.6.18-92.1.10.el5.x86_64.rpm

That RHEL5 kernel version offers 3 different x86_64 kernel packages: 

  kernel-2.6.18-92.1.10.el5.x86_64.rpm
  kernel-xen-2.6.18-92.1.10.el5.x86_64.rpm
  kernel-debug-2.6.18-92.1.10.el5.x86_64.rpm

Each of the above has its own associated debuginfo package, 
which contains the relevant vmlinux file for that kernel
type:

  kernel-debuginfo-2.6.18-92.1.10.el5.x86_64.rpm
  kernel-xen-debuginfo-2.6.18-92.1.10.el5.x86_64.rpm
  kernel-debug-debuginfo-2.6.18-92.1.10.el5.x86_64.rpm

And when installing any of the -debuginfo packages above,
rpm requires that the kernel-debuginfo-common package be 
installed along with it:

  kernel-debuginfo-common-2.6.18-92.1.10.el5.x86_64.rpm

Like the name says, the "common" package has debuginfo
data that is the same for all 3 kernel types.

Dave