Thomas Stuefe

Very rare. In some environments, the automatic limit heuristic seems to fail and we get ``` [0.154s][warning][vitals] Vitals HiMemReport: limit could not be established; will disable high memory reports (specify...

JDK-8292351: tty should always live

6

The default stream object tty is used in many places but its lifetime is limited. It gets born not-quite at the beginning of VM initialization and dies in DestroyVM. This...

JDK-8293711: Factor out size parsing functions from arguments.cpp

22

Arguments.cpp has several size parsing functions which would be useful in other areas of the hotspot, e.g. in NMT. It would be nice to have them factored out into utilities,...

JDK-8327971: Multiple ASAN errors reported for metaspace

8

When adding ASAN support for metaspace, we decided to track poisoning not at the OS border (map) but at the border between metaspace and outer JVM code (or, more precisely,...

Prepare for smaller-than-22-bit class pointers

6

This PR prepares using arbitrary klass pointer sizes (e.g. 16). It cleans up a few places and corrects comments. The changes in detail: - exposes a new function `CompressedKlassPointers::max_encoding_range_size()` that...

8332042: Move MEMFLAGS to its own include file

5

MEMFLAGS, as well as its enum constants, should live in its own include. The constants are used throughout the code base, often without needing the allocation APIs exposed through allocation.hpp....

8331953: ubsan: metaspaceShared.cpp:1305:57: runtime error: applying non-zero offset 12849152 to null pointer

6

Reported by @MBaesken at SAP. ubsan complains about this line: ``` const size_t ccs_begin_offset = align_up(base_address + archive_space_size, class_space_alignment) - base_address; ``` `base_address` here is the wish address, with NULL...

8322475: Extend printing for System.map

10

This is an expansion on the new `System.map` command introduced with JDK-8318636. We now print valuable information per memory region, such as: - the actual resident set size - the...

8330174: Establish no-access zone at the start of Klass encoding range

3

--------- ### Progress - [ ] Change must be properly reviewed (1 review required, with at least 1 [Reviewer](https://openjdk.org/bylaws#reviewer)) - [x] Change must not contain extraneous whitespace - [x] Commit...

8332287: When printing arguments in error logs, quote arguments with whitespaces

9

Trivial fix to a simple issue. In hs-err files, when printing the arguments of the crashed JVM process, print arguments with whitespaces in them with quotes. Makes it easier to...