[Crash-utility] Heads up: crash command errors with 2.6.24 kernels

[Dave Anderson]

It should be noted that while version 4.0-4.11 will at least allow
a crash session to initialize, there are several other 2.6.24 related
kernel changes that have broken several key commands.  Among them, at
least on x86_64 kernels:

  1. "kmem -[sS]" fails due to changes in the CONFIG_SLUB code between
     2.6.22 and 2.6.24.
  2. "kmem <address>" doesn't work at all.
  3. "kmem -n" fails to show any pgdat-node related information.
  4. "kmem -f" doesn't work at all.
  5. "kmem -i" doesn't work at all.
  6. "runq" for the CFS scheduler no longer shows any queued tasks,
     but only the relevant structure addresses.
  7. The kernel's use of a virtual mem_map array on x86_64 is not
     handled, and this may lead to other page struct related errors.

Dave