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Type: Bug
Resolution: Fixed
Priority: P4
Fix Version/s: 21
Affects Version/s: None
Component/s: core-svc
Labels:

Subcomponent:
java.lang.management
Introduced In Version:

20
Resolved In Build:
b07
CPU:

x86
OS:

linux

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8304240	17.0.8-oracle	Ivan Bereziuk	P4	Resolved	Fixed	b01
JDK-8300859	17.0.7	Severin Gehwolf	P4	Resolved	Fixed	b01
JDK-8304241	11.0.20-oracle	Ivan Bereziuk	P4	Resolved	Fixed	b01
JDK-8301062	11.0.19	Severin Gehwolf	P4	Resolved	Fixed	b01
JDK-8300662	openjdk8u372	Jonathan Dowland	P4	Resolved	Fixed	b01
JDK-8304236	8u381	Ivan Bereziuk	P4	Resolved	Fixed	b01

~~JDK-8292541~~ introduced JNI method Java_jdk_internal_platform_CgroupMetrics_getTotalMemorySize0. During the effort to backport it to jdk8u-dev, We have discovered that it can return an invalid value on x86 (32 bit) systems.

On a system with 7281311744 bytes of total memory the function would return: -1308622848 suggesting some overflow occurring.

This was caught with the tier1 test:
TestMemoryAwareness.testContainerMemExceedsPhysical.

See this discussion on GitHub for further details
https://github.com/openjdk/jdk8u-dev/pull/220#pullrequestreview-1247595245

backported by

JDK-8300662 CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Resolved

JDK-8300859 CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Resolved

JDK-8301062 CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Resolved

JDK-8304236 CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Resolved

JDK-8304240 CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Resolved

JDK-8304241 CgroupMetrics.getTotalMemorySize0() can report invalid results on 32 bit systems

Resolved

relates to

JDK-8292541 [Metrics] Reported memory limit may exceed physical machine memory

Resolved

links to

Commit openjdk/jdk8u-dev/8d2f7e0c

Commit openjdk/jdk11u-dev/684a870e

Commit openjdk/jdk17u-dev/571f5f5a

Commit openjdk/jdk/dea58efb

Review openjdk/jdk8u-dev/220

Review openjdk/jdk11u-dev/1672

Review openjdk/jdk17u-dev/1086

Review openjdk/jdk/12069

(1 backported by, 1 relates to, 8 links to)

Assignee:: Jonathan Dowland

Reporter:: Jonathan Dowland

Votes:: 0 Vote for this issue

Watchers:: 5 Start watching this issue

Created:: 2023-01-13 06:57

Updated:: 2023-06-29 00:24

Resolved:: 2023-01-19 05:28

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