[SERVER-42595] Refactor locks in curop to make currentop_waiting_for_latch.js test work Created: 01/Aug/19  Updated: 29/Oct/23  Resolved: 17/Sep/19

Status: Closed
Project: Core Server
Component/s: None
Affects Version/s: None
Fix Version/s: 4.3.1

Type: Bug Priority: Major - P3
Reporter: Rahul Sundararaman (Inactive) Assignee: Benjamin Caimano (Inactive)
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Depends
Backwards Compatibility: Fully Compatible
Operating System: ALL
Sprint: Service Arch 2019-08-12, Service Arch 2019-08-26, Service Arch 2019-09-09, Service Arch 2019-09-23
Participants:
Linked BF Score: 20

 Description   

Refactor gHangLock in CurOp::reportCurrentOpForClient so it doesn't deadlock when called concurrently fix BF-14245. Remember to undo SERVER-42591



 Comments   
Comment by Githook User [ 31/Oct/19 ]

Author:

{'username': 'bcaimano', 'email': 'ben.caimano@mongodb.com', 'name': 'Ben Caimano'}

Message: SERVER-41357 SERVER-41360 SERVER-43324 Add Mutex, BasicLockableAdaptor, and DiagnosticInfo

This commit backports Mutex, BasicLockableAdaptor, and DiagnosticInfo to
v4.2. These pieces came in completely in various interleaved commits.
The constituent commits partially included in this backport are listed
below. The majority of these commits are part of the "Improved
Diagnostics for Latches" epic.

Mutex:

BasicLockableAdaptor:

DiagnosticInfo:

Note that while this commit adds these pieces and integrates them into
the mongo-server codebase, it does not convert existing stdx::mutex
construction. It also does not include the updates to Interruptible that
were done as part of "Improved Diagnostics for Latches".
Branch: v4.2
https://github.com/mongodb/mongo/commit/3a05e4ce75cd03b09b52ec5943e1801c6d91279b

Comment by Githook User [ 17/Sep/19 ]

Author:

{'username': 'bcaimano', 'email': 'ben.caimano@mongodb.com', 'name': 'Ben Caimano'}

Message: SERVER-42595 Refactor failpoint in curop to fix jstest
Branch: master
https://github.com/mongodb/mongo/commit/149c8f62af00f9dead5d4046368b8a2c3974cfbe

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