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Type: Bug
Resolution: Fixed
Priority: P3
Fix Version/s: 27
Affects Version/s: 11, 17, 21, 25, 26, 27
Component/s: hotspot
Labels:

Subcomponent:
runtime
Resolved In Build:
b06
CPU:

ppc

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8376184	26.0.1	David Briemann	P3	Resolved	Fixed	b03
JDK-8376204	25.0.3	David Briemann	P3	Resolved	Fixed	b01
JDK-8376202	21.0.11	David Briemann	P3	Resolved	Fixed	b01
JDK-8376203	17.0.19	David Briemann	P3	Resolved	Fixed	b01

The mdp verification code in the PPC64 interpreter always calls InterpreterRuntime::verify_mdp in debug builds. This causes a considerable slowdown in some tests on PPC. We can reduce test time significantly by fixing the quick check.

Workaround: -XX:-VerifyDataPointer

backported by

JDK-8376184 PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build

Resolved

JDK-8376202 PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build

Resolved

JDK-8376203 PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build

Resolved

JDK-8376204 PPC64: incorrect quick verify_method_data_pointer check causes poor performance in debug build

Resolved

links to

Commit(master) openjdk/jdk17u-dev/80ef28b8

Commit(master) openjdk/jdk21u-dev/1fd01725

Commit(master) openjdk/jdk25u-dev/38a616fd

Commit(master) openjdk/jdk26u/e2bc8d6a

Commit(master) openjdk/jdk/30f39d88

Review(master) openjdk/jdk17u-dev/4235

Review(master) openjdk/jdk21u-dev/2556

Review(master) openjdk/jdk25u-dev/153

Review(master) openjdk/jdk26u/17

Review(master) openjdk/jdk/29279

(9 links to)

Assignee:: David Briemann
Reporter:: David Briemann
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: 2026-01-16 03:49
Updated:: 2026-01-28 13:01
Resolved:: 2026-01-19 00:58

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