Offical Declaration

• Kernel options

If you want to edit kernel options, note that the following are currently broken with Kerrighed:

    * General setup -> IPC Namespaces
    * Processor type and features -> Preemption Model -> Voluntary Kernel Preemption
    * Processor type and features -> Preemption Model -> Preemptible Kernel
    * Networking -> IrDA (infrared) subsystem support
    * Security options -> Enable access key retention support
    * Networking -> Networking options -> The Ipv6 protocol 

Note: don't forget to add NIC driver and, if you plan to use NFSROOT, include it in the kernel, not as module.

We meet…

• Kernel options

      * Cluster support -> Active Fork Delay  (Can't compiler, maybe this function doesn't release)
  

• Enable SMP (Kerrighed default .config don't enable it, you must choose CONFIG_SMP)

     * Processor type and features -> Symmetric multi-processing support
     * Processor type and features -> ( ) Maximum number of CPUs (2-255)
  

• If CONFIG_HIGHMEM64G is set

  kererighed: error: unknow symbol __support_pte_mask
  

• ipcs, can't see anything

  $ ipcs
  krg01:~# ipcs
  ------ Shared Memory Segments --------
  key        shmid      owner      perms      bytes      nattch     status      
  
  ------ Semaphore Arrays --------
  key        semid      owner      perms      nsems     
  
  ------ Message Queues --------
  key        msqid      owner      perms      used-bytes   messages
  

  rock@krg:~$ ipcs
  ------ Shared Memory Segments --------
  key        shmid      owner      perms      bytes      nattch     status      
  0x00000000 163842     rock      600        393216     2          dest         
  0x00000000 196611     rock      600        393216     2          dest         
  0x00000000 229380     rock      600        393216     2          dest         
  0x00000000 262149     rock      600        393216     2          dest         
  0x00000000 294918     rock      600        393216     2          dest         
  0x00000000 327687     rock      600        393216     2          dest         
  0x00000000 360456     rock      600        393216     2          dest         
  0x00000000 393225     rock      600        393216     2          dest         
  0x00000000 425994     rock      600        393216     2          dest         
  0x00000000 491532     rock      600        393216     2          dest         
  0x00000000 524301     rock      600        393216     2          dest         
  0x00000000 557070     rock      600        393216     2          dest         
  0x00000000 589839     rock      600        393216     2          dest         
  0x00000000 622608     rock      600        393216     2          dest         
  
  ------ Semaphore Arrays --------
  key        semid      owner      perms      nsems     
  
  ------ Message Queues --------
  key        msqid      owner      perms      used-bytes   messages