Re: local lockword in ASCB
When SRB suspend due to unavailable LOCAL lock When task suspend due to unavailable CML lock When SRB suspend due to unavailable CML lock In the above cases, are they all queued to ASCBLSWQ? Then what's the other 3 queue used for? (ASCBLLWQ, ASCBLTCB, ASCBLTCS) -- Regards, Michael Tai -- Original -- From: "Jim Mulder"<d10j...@us.ibm.com>; Date: Sun, Apr 15, 2018 01:13 AM To: "IBM-MAIN"<IBM-MAIN@LISTSERV.UA.EDU>; Subject: local lockword in ASCB Unless you are looking at a standalone dump, you should not expect these things to be consistent. Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. Poughkeepsie NY I have a question about the local lockword ST WORKSHEET NAMEOFFSET | CPU 0028 PSA TOLD CURR TCB21C | AOLD CURR ASCB 224 | 00F48E80 LOCAL LOCAL LOCK 2EC | 00F60E80 CLHS LOCKS HELD 2F8 | 0001 The low order bit of CLHS is '1' which indicate the local lock is held by the logical processor 0028 PSALOCAL is equal to an ASCB 00F60E80, which means it's a CML lock in ASCB 00F60E80. I try to locate the lockword for this CML lock in ASCB 00F60E80 CBF 00F60E80 STR(ASCB) ASCB: 00F60E80 +0078 LLWQ. RCTP. 008FD520 LOCK. Shouldn't the lockword for local suspend lock be 004n , n=logical processor number holding the lock. Why ASCBLOCK is all zeros? All zeros means the local lock for that address space is still available. -- Regards, Michael Tai -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
local lockword in ASCB
Unless you are looking at a standalone dump, you should not expect these things to be consistent. Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. Poughkeepsie NY I have a question about the local lockword ST WORKSHEET NAMEOFFSET | CPU 0028 PSA TOLD CURR TCB21C | AOLD CURR ASCB 224 | 00F48E80 LOCAL LOCAL LOCK 2EC | 00F60E80 CLHS LOCKS HELD 2F8 | 0001 The low order bit of CLHS is '1' which indicate the local lock is held by the logical processor 0028 PSALOCAL is equal to an ASCB 00F60E80, which means it's a CML lock in ASCB 00F60E80. I try to locate the lockword for this CML lock in ASCB 00F60E80 CBF 00F60E80 STR(ASCB) ASCB: 00F60E80 +0078 LLWQ. RCTP. 008FD520 LOCK. Shouldn't the lockword for local suspend lock be 004n , n=logical processor number holding the lock. Why ASCBLOCK is all zeros? All zeros means the local lock for that address space is still available. -- Regards, Michael Tai -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
local lockword in ASCB
Hi, I have a question about the local lockword ST WORKSHEET NAMEOFFSET | CPU 0028 PSA TOLD CURR TCB21C | AOLD CURR ASCB 224 | 00F48E80 LOCAL LOCAL LOCK 2EC | 00F60E80 CLHS LOCKS HELD 2F8 | 0001 The low order bit of CLHS is '1' which indicate the local lock is held by the logical processor 0028 PSALOCAL is equal to an ASCB 00F60E80, which means it's a CML lock in ASCB 00F60E80. I try to locate the lockword for this CML lock in ASCB 00F60E80 CBF 00F60E80 STR(ASCB) ASCB: 00F60E80 +0078 LLWQ. RCTP. 008FD520 LOCK. Shouldn't the lockword for local suspend lock be 004n , n=logical processor number holding the lock. Why ASCBLOCK is all zeros? All zeros means the local lock for that address space is still available. -- Regards, Michael Tai -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
