CDV ❯ Deadlock occur on lock upgrade

• Type: Bug
• Status: Closed
• Priority: 2 Major
• Resolution: Won't Fix
• Component/s: DSO:L1
• Labels:

• Assignee: drb
• Reporter: asi
• Created: April 02, 2007
• Votes: 0
• Watchers: 0
• Updated:

  September 26, 2008
• Resolved:

  September 26, 2008

Description

The lock upgrade test, LockUpgrade1Reads1UpgradesTest, result in deadlock. Deadlock could occur if there is more than one threads within a single JVM, one doing a lockupgrade and another one acquiring a readlock as follows:

Thread 1 doing a thread upgrade as follows:

T1: DSO MonitorEnter with Read T2: JVM MonitorEnter T3: DSO MonitorEnter with Write T4: JVM MonitorEnter

Thread 2 doing a read only:

T1.5 (between T1 and T2): Dso MonitorEnter with Read T2.5 (between T2 and T3): JVM MonitorEnter

The test is currently disabled.

Comments

Antonio Si 2007-10-11

This is no longer an issue since lock upgrade is no longer supported.