- Adapted Takao Indoh of Fujitsu's patch for determining proper size
  of the ia64_init_stack; fixes empty ia64 "bt -a" output for cpu 8 and
  above for diskdumps generated via OS_INIT.
- Applied a patch from Vladimir Kuznetsov to address a "net -s" error
  "net: invalid structure member offset: inet_opt_daddr" error due to
  the inet_opt structure being dropped between 2.6.10 and 2.6.11.
- Made the initialization-time rule such that if "bt -O" is contained
  in any or all of the 3 possible initialization-time input files
  ($HOME/.crashrc, ./.crashrc, or "-i inputfile" files), the setting
  will remain idempotent.  Fixed the redundant running of $HOME/.crashrc
  and ./.crashrc files if they are the same file.
- Added a gdb work-around/hack for ia64 initialization-time warning
  "WARNING: cannot determine unw.tables offset" on rebuilt RHEL3 ia64
  kernels that would prevent "bt" from working.
- Backed out 4.0-2.11 x86_64 pseudo-backtrace patch to show in-kernel
  exception frame RIP and RSP values as a unique frame following the
  register dump; instead, the exception RIP address is translated
  and displayed prior to the register dump.