[Crash-utility] [PATCH] add a new command: ipcs

[Dave Anderson]

----- Original Message -----
> At 2012-4-19 3:33, Dave Anderson wrote:
> >    Usage: ipcs [-smMq] [id | address]
> >
> > And you could also allow multiple id and/or address values to be entered,
> > as is done by most of the other crash commands.
> 
> Hello Dave,
> 
> I am not so sure about the output style, so I need to confirm it.
> 
> With multiple id/address, the output below is OK?
> 
> crash> ipcs 0 1
> VALUE 0:
> SHMID_KERNEL     KEY      SHMID      UID   PERMS BYTES      NATTCH  STATUS
> ffff880473b54990 00000000 0          0     666   90000      1
> 
> SEM_ARRAY        KEY      SEMID      UID   PERMS NSEMS
> ffff880472037990 00000000 0          0     600   1
> 
> VALUE 1: (not found)

I would do something similar to all of the commands that can accept
multiple pid/task-address arguments:

 crash> ps 1 500 ffff88003ef20040
 ps: invalid task or pid value: 500

    PID    PPID  CPU       TASK        ST  %MEM     VSZ    RSS  COMM
       1      0   3  ffff88003ef214c0  IN   0.1   23640   1092  init
       3      2   0  ffff88003ef20040  IN   0.0       0      0  [migration/0]
 crash> 

So in your example, it would look like:

 crash> ipcs 0 1
 ipcs: invalid id or address: 1

 SHMID_KERNEL     KEY      SHMID      UID   PERMS BYTES      NATTCH  STATUS
 ffff880473b54990 00000000 0          0     666   90000      1
 
 SEM_ARRAY        KEY      SEMID      UID   PERMS NSEMS
 ffff880472037990 00000000 0          0     600   1

 crash>

Thanks,
  Dave