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2992775 - SAP System becomes Standstill with DpILogonCntTabChange in C-STACK of work process trace

Symptom

SAP System becomes standstill.

In work process trace, you will see the error like:

M *** WARNING => DpILogonCntTabDeleteEntry: FiRemove failed (4) [dpLogonCntTa 1461]
M {root-id=000D3ACDB6341EEB85849025C3B0A30A}_{conn-id=00000000000000000000000000000000}_0
M DpLogonCntTabWatchDog: deleted 3202 entries
M *** WARNING => ThSncGetMyName: SncGetMyNameU failed [thxxsnc.c 4195]
M {root-id=F53605DB784B4DE39EFC5BC320596489}_{conn-id=000D3ACDB6341EEB8584908E0B51830A}_2
M *** WARNING => ThMyUserKeySnc: ThSncGetMyName failed [thxxuk.c 596]


M ------------------ C-STACK ----------------------
*---->(FAULT) Stack Back Trace <----*
00000073467F31C0 00007FF785830C2C 000000000000002A disp+work!FiInsert [fixx.c (1068)]
00000073467F3720 00007FF785831EE2 0020002000200020 disp+work!DpILogonCntTabChange [dplogoncnttab.c (525)]
00000073467F3770 00007FF785831FBE 0000000000000000 disp+work!DpLogonCntTabLogon [dplogoncnttab.c (371)]
00000073467F37C0 00007FF78577869D 0000000000000000 disp+work!ThResourcesOfCurrentUserExceeded [thsessioninfo.c (632)]
00000073467F3850 00007FF785F0C770 0000000000000001 disp+work!DyISigni [sign.c (1713)]
00000073467F70C0 00007FF7861DA8BB 00007FF7878BFD70 disp+work!logon [sign.c (12191)]
00000073467F71F0 00007FF7856E1F5A 000007DD7707AD40 disp+work!syssigni [sign.c (875)]
......
M ------------------ c-stack end ------------------

......
I *** WARNING => MtxLock 8613000 LOGON_CN owner=ABAP_WP_28 deadlock ? [mtxxx.c 658]
I {root-id=000D3ACDB6341EEB88819CFF222DE30A}_{conn-id=000D3ACDB6341EEB88819CFF222E030A}_1
......


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Product

SAP NetWeaver all versions ; SAP S/4HANA all versions

Keywords

 DpLogonCntTabWatchDog; FtRemove; DpILogonCntTabDeleteEntry: FiRemove failed; DpILogonCntTabChange; LOGON_CN; LOGON_CN owner; MtxLock; deadlock. , KBA , BC-CST-DP , Dispatcher, Task Handler , Problem

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