JDK-8237512 : AArch64: aarch64TestHook leaks a BufferBlob
  • Type: Bug
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 8-aarch64,11,14,15
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: linux
  • CPU: aarch64
  • Submitted: 2020-01-20
  • Updated: 2021-02-01
  • Resolved: 2020-01-22
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JDK 11 JDK 15 Other
11.0.10-oracleFixed 15 b07Fixed openjdk8u292Fixed
Related Reports
Relates :  
JDK-8257192 - Integrate AArch64 JIT port into 8u
Description
aarch64TestHook() is called from ICache::initialize() and allocates a 500k BufferBlob that it passes to entry() in assembler_aarch64.cpp which performs a self-test of the assembler. The BufferBlob needs to be explicitly freed or else it will hang around forever. Also we can just skip the allocation if ASSERT is not defined as the test is not performed in this case.
Comments
Fix Request (11u) This improves memory footprint (considerably for low-footprint devices). Patch applies cleanly to 11u, tier1 x {fastdebug,release} passes on Linux aarch64.
09-09-2020
URL: https://hg.openjdk.java.net/jdk/jdk/rev/ec9dead6ae87 User: adinn Date: 2020-01-22 09:14:40 +0000
22-01-2020
Review thread: https://mail.openjdk.java.net/pipermail/hotspot-dev/2020-January/040554.html
20-01-2020