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Type: Bug
Resolution: Fixed
Priority: P4
Fix Version/s: 24
Affects Version/s: 24, repo-shenandoah
Component/s: hotspot
Labels:

Subcomponent:
gc
Resolved In Build:
b19

Issue	Fix Version	Assignee	Priority	Status	Resolution	Resolved In Build
JDK-8342025	23.0.2	William Kemper	P4	Resolved	Fixed	b03

I believe this is caused by a naming collision with the `tail_mask` function recently introduced to shenandoahSimpleBitmap.cpp in the global scope.

Stack traces in incremental build show shenandoahSimpleBitMap calling a function with the same name defined in bitMap.cpp:

    #8 0x7f5e08a2c4d4 in tail_mask(unsigned long) src/hotspot/share/utilities/bitMap.cpp:431
    #9 0x7f5e0a951144 in ShenandoahSimpleBitMap::count_trailing_ones(long) const src/hotspot/share/gc/shenandoah/shenandoahSimpleBitMap.cpp:75
    #10 0x7f5e0a951b42 in ShenandoahSimpleBitMap::find_first_consecutive_set_bits(long, long, unsigned long) const src/hotspot/share/gc/shenandoah/shenandoahSimpleBitMap.cpp:215

backported by

JDK-8342025 Shenandoah: assert(tail_bits < (idx_t)BitsPerWord) failed: precondition

Resolved

relates to

JDK-8332697 ubsan: shenandoahSimpleBitMap.inline.hpp:68:23: runtime error: signed integer overflow: -9223372036854775808 - 1 cannot be represented in type 'long int'

Resolved

links to

Commit(master) openjdk/jdk23u/9fdcee9d

Commit(master) openjdk/jdk/45a63595

Commit(master) openjdk/shenandoah-jdk21u/ae9173c0

Review(master) openjdk/jdk23u/135

Review(master) openjdk/jdk/21395

Review(master) openjdk/shenandoah-jdk21u/122

(3 links to)

Assignee:: William Kemper

Reporter:: William Kemper

Votes:: 0 Vote for this issue

Watchers:: 4 Start watching this issue

Created:: 2024-10-07 10:21

Updated:: 2024-10-14 00:26

Resolved:: 2024-10-07 19:13

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