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2279744 - Work process fails to start with shmat() error

Symptom

Work process trace contains errors with shmat() where the error is "Permission denied"

I  *** ERROR => shmat(12582970,0x(nil),SHM_RND) (13: Permission denied) [shmux.c      1591]
I  *** ERROR => shmctl(12582970,IPC_RMID,0) 0xfffffffffffe7b8) (1: Not owner) [shmux.c      1602]
I  *** ERROR => Shm Pool Create Error. PoolKey=10, Key=11. [shmux.c      2101]

At the same time, the dispatcher trace may contain entries such as:

*** ERROR => e=13 semop(14680279,(0,-1,4096),1) (13: Permission denied) [semux.c      567]
*** ERROR => CCMS: AlCreateAttachShm_Doublestack : lock semaphore returns 1 [alxxappl.c   1620]
*** ERROR => CCMS: sAlInit: could not create/attach shared memory key 73 (rtc = 253) [alxx.c       1216]


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Environment

  • SAP NetWeaver All versions
  • Unix and Linux systems running SAP

Product

SAP NetWeaver all versions

Keywords

KBA , BC-OP-AIX , IBM AIX , BC-OP-LNX , Linux , BC-OP-HPX , HP-UX , BC-OP-SUN , SUN Solaris , Problem

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