Integrated: 8267042: bug in monitor locking/unlocking on ARM32 C1 due to uninitialized BasicObjectLock::_displaced_header

[Boris Ulasevich]

On Thu, 27 May 2021 08:25:42 GMT, Boris Ulasevich <bulasevich at openjdk.org> wrote:

> Hi,
> 
> Could we have a review of this change?
> 
> The bug was discovered in ARM32 C1 monitor locking/unlocking: the 
> displaced header is not initialized to the non-zero value which results in deadlock.
> 
> Thanks,
> Boris

This pull request has now been integrated.

Changeset: 8f2456e5
Author:    Boris Ulasevich <bulasevich at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/8f2456e5b058a88730ec383d88634737849afdfb
Stats:     176 lines in 3 files changed: 172 ins; 0 del; 4 mod

8267042: bug in monitor locking/unlocking on ARM32 C1 due to uninitialized BasicObjectLock::_displaced_header

Co-authored-by: Chris Cole <chris at sageembedded.com>
Reviewed-by: dsamersoff

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PR: https://git.openjdk.java.net/jdk/pull/4218