LO70049: DOMINO SERVER IS HANGING WITH "WAITING FOR WRITE LOCK ON RWSEM 0X082A SERVER BLOCK SEMAPHORE"

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You can track all active APARs for this component.

APAR status

  • Closed as fixed if next.

Error description

  • Error Description￘
    I found in the semdebug the following semaphores for
    different task and threads.
    
    WAITING FOR WRITE LOCK ON RWSEM 0x082A Server block semaphore
    
    
    In checking the NSD, I found lockspin for different task.
    
    nserver
    nHTTP
    nAMgr
    
    
    I found the following stacks for this issue in the NSD
    
    06/04/2012 11:48:15 AM CDT sq="0052864F" THREAD [0A0C:11EA-17A8]
    WAITING FOR WRITE LOCK ON RWSEM 0x082A Server block semaphore
    (@140B8FA0) (R=1,W=2,WRITER=1750:0950,OWNER=1750:0950) FOR
    30000 ms
    
    ############################################################
    ### thread 1/3: [nSMDreal: 1750: 0950]
    ### FP=0x0012f878, PC=0x76f3135a, SP=0x0012f878
    ### stkbase=0x00130000, total stksize=81920, used stksize=1928
    ############################################################
     [ 1] 0x76f3135a ntdll.ZwWaitForSingleObject+10
    (4d50758,9908,8000,4d50748)
     [ 2] 0x7FEFD3F10DC KERNELBASE.WaitForSingleObjectEx+156
    (23d,40604b4,0,18)
    @[ 3] 0x1005d5ae nnotes.WaitOnNativeSemaphore+374
    (3d5b4c0,3b540a0,d,8000)
    @[ 4] 0x1005e0f6 nnotes.OSLockSem+242 (0,1,2,0)
    @[ 5] 0x10fa27d8 nnotes.ClientTerm+44
    (6fde5ea8,12f859,F66206C00000000,1582070c)
    @[ 6] 0x10023a0c nnotes.OSTerm+988 (14005D528,0,140000000,1)
    @[ 7] 0x101325c5 nnotes.NotesTerm+9 (14005D4F8,46,12ff18,0)
     [ 8] 0x1400010B6 nSMDreal+4278 (0,0,6,1db1)
     [ 9] 0x1400176F5 nSMDreal+95989 (0,0,0,0)
     [10] 0x7696652d kernel32.BaseThreadInitThunk+13 (0,0,0,0)
     [11] 0x76f0c521 ntdll.RtlUserThreadStart+33 (0,0,0,0)
    
    Which is waiting for:
    06/04/2012 11:49:26 AM CDT sq="005287DE" THREAD [1750:0002-0950]
    WAITING FOR SEM 0x0814 Client initialization semaphore
    (@0F7E061C)
    (OWNER=1138:0D48) FOR 30000 ms
    
    ############################################################
    ### thread 1/3: [ nUpdate: 1138: 0d48]
    ### FP=0x0012f6e8, PC=0x76f3135a, SP=0x0012f6e8
    ### stkbase=0x00130000, total stksize=126976, used stksize=2328
    ############################################################
     [ 1] 0x76f3135a ntdll.ZwWaitForSingleObject+10
    (1,f01028ef,4b73558,1003a7e6)
     [ 2] 0x7FEFD3F10DC KERNELBASE.WaitForSingleObjectEx+156
    (731,0,0,1914)
    @[ 3] 0x1005d5ae nnotes.WaitOnNativeSemaphore+374
    (4b740a0,1003a7e6,0,1003a7e6)
    @[ 4] 0x1005e0f6 nnotes.OSLockSem+242 (0,1005ec8d,690,0)
    @[ 5] 0x1005ebd0 nnotes.OSLockWriteSem+68 (0,8dc00001,0,0)
    @[ 6] 0x10fa2872 nnotes.ClientTerm+198
    (6fd83928,12f709,0,13300000003)
    @[ 7] 0x10023a0c nnotes.OSTerm+988 (0,0,0,0)
    @[ 8] 0x101325c5 nnotes.NotesTerm+9 (0,0,2179c0,1c0000)
    @[ 9] 0x00416847 nUpdate.main+287 (0,0,0,0)
    @[10] 0x00417331 nUpdate.mainCRTStartup+369 (0,0,0,0)
     [11] 0x7696652d kernel32.BaseThreadInitThunk+13 (0,0,0,0)
     [12] 0x76f0c521 ntdll.RtlUserThreadStart+33 (0,0,0,0)
    
    
    The above stack is waiting on four other threads which are all
    "Server
    block semaphore"
    

Local fix

  • Local Fix￘
    No workarond at this time.
    

Problem summary

  • This APAR is closed as FIN. We have deferred the fix to a
     future release.
    

Problem conclusion

Temporary fix

Comments

  • This APAR is associated with SPR# RMUY8VFRMY.
    This APAR is closed as FIN. We have deferred the fix to a
     future release.
    

APAR Information

  • APAR number

    LO70049

  • Reported component name

    DOMINO SERVER

  • Reported component ID

    5724E6200

  • Reported release

    852

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-18

  • Closed date

    2013-01-14

  • Last modified date

    2013-01-14

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

  • R852 PSN

       UP



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Document information


More support for:

IBM Domino

Software version:

8.5.2

Reference #:

LO70049

Modified date:

2013-01-14

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