[jdk21u-dev] RFR: 8348562: ZGC: segmentation fault due to missing node type check in barrier elision analysis
Martin Doerr
mdoerr at openjdk.org
Mon Jan 27 11:07:17 UTC 2025
Clean backport of [JDK-8348562](https://bugs.openjdk.org/browse/JDK-8348562). The crashes can be reproduced in 21u by `make run-test TEST="jdk/jfr/api/consumer/streaming/TestFilledChunks.java" JTREG="VM_OPTIONS=-XX:+UseZGC -XX:+ZGenerational"` on linux PPC64le. The fix only adds a null check + bailout where the current implementation crashes with SIGSEGV.
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Commit messages:
- Backport afcc2b03afc77f730300e1d92471466d56ed75fb
Changes: https://git.openjdk.org/jdk21u-dev/pull/1361/files
Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1361&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8348562
Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod
Patch: https://git.openjdk.org/jdk21u-dev/pull/1361.diff
Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1361/head:pull/1361
PR: https://git.openjdk.org/jdk21u-dev/pull/1361
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