Fix to prevent a possible invocation-time error on Linux 3.7 and
later kernels configured with CONFIG_SLAB, running against vmcore
files filtered with the makedumpfile(8) facility.  Without the
patch, the message "crash: page excluded: kernel virtual address:
<address>  type: kmem_cache buffer" is immediately followed by
the message "crash: unable to initialize kmem slab cache subsystem".
Because of a kernel data structure name change from "cache_cache" to
"kmem_cache_boot", the crash utility failed to properly downsize
the stored size of the kernel's kmem_cache data structure from the
size indicated by the vmlinux debuginfo data.  This in turn could
lead to reading beyond the end of a kmem_cache data structure into
a page of memory that had been excluded from the vmcore.  The fix
was also applied to kernels configured with CONFIG_SLUB.
(anderson@redhat.com)