2493578 - Error while launching SUM in browser " Error: sock 27; error 13 (Permission denied)"

Not able to launch SUM in browser.

Further checking in sapstartsrv.log (under<HOSTAGENT>/work/ directory), error as below:

• ABAP System

[Thr 12] File runnings.commands/9C8E993625A81EE795E05F974807D804_0_8678_ is locked by process 8571 and has write lock
[Thr 12] SLPProxyHandlerFactory::BuildArguments->add(key=SID; value=<SID>)
[Thr 12] Connecting to SAPHostChannel '_lmsl_sumabap_<SID>'
[Thr 12] *** ERROR => Error: sock 27; error 13 (Permission denied)
(13: Permission denied) [sixx.cpp 125]

• DUAL stack system

[Thr 140022183728896] File runnings.commands/005056A10CEE1ED6A88B4FD2BF689359_0_31896_ is locked by process 30869 and has write lock
[Thr 140022183728896] SLPProxyHandlerFactory::BuildArguments->add(key=SID; value=<SID>)
[Thr 140022183728896] Connecting to SAPHostChannel '_lmsl_dualabap_<SID>'
[Thr 140022183728896] *** ERROR => Error: sock 23; error 13 (Permission denied)
(13: Permission denied) [sixx.cpp 127]

• Similar error can be seen for JAVA system as well.

• Software Update Manager (SUM)
• UNIX based systems
• SAP Netweaver AS ABAP/JAVA/Dual Stack

SUM, upgrade, sock, error 13, Permission, denied, _lmsl, locked, write lock, URL, browser, SAPHostChannel, Software Update Manager, /tmp/.saphostagent, Internal Server ErrorOperation, Upgrade,SUM URL, soap_check_permission, authentication,sapstartsrv,hostagent,Webmethod,OperationCom 620, Internal Server Error, Status 500, SUM, SL Common UI, Softwarre Update Manager, SAP host agent, HTTP 404, Webpage cannot be opened, Not Found, Unable to locate the requested resource, 127 (null), Status 500, WshShell.RegRead, pam_authenticate, sapuxuserchk, sapstartsrv, lmsl, sumabap, sumjava, sapstartsrv.log, dev_saphostexec, logon type, ConnectContext, SAPUp, ExecuteNextCommand, SendError, localhost, 127.0.0.1, loopback
, KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-UPG-TLS-TLJ , Upgrade tools for Java , BC-UPG-PRP , Upgrade Preparation , Problem