Integrated: 8339648: ZGC: Division by zero in rule_major_allocation_rate

[Matthias Baesken]

On Fri, 6 Sep 2024 10:26:19 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> The HS jtreg test gc/stringdedup/TestStringDeduplicationAgeThreshold_ZGenerational
> shows this error when running with ubsan enabled 
> 
> src/hotspot/share/gc/z/zDirector.cpp:491:74: runtime error: division by zero
>     #0 0x7f09886401d4 in rule_major_allocation_rate src/hotspot/share/gc/z/zDirector.cpp:491
>     #1 0x7f09886401d4 in start_gc src/hotspot/share/gc/z/zDirector.cpp:822
>     #2 0x7f09886401d4 in ZDirector::run_thread() src/hotspot/share/gc/z/zDirector.cpp:912
>     #3 0x7f098c1404e8 in ZThread::run_service() src/hotspot/share/gc/z/zThread.cpp:29
>     #4 0x7f09897cac19 in ConcurrentGCThread::run() src/hotspot/share/gc/shared/concurrentGCThread.cpp:48
>     #5 0x7f098bb46b0a in Thread::call_run() src/hotspot/share/runtime/thread.cpp:225
>     #6 0x7f098b1a9881 in thread_native_entry src/hotspot/os/linux/os_linux.cpp:858

This pull request has now been integrated.

Changeset: 80db6e71
Author:    Matthias Baesken <mbaesken at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/80db6e71b092867212147bd369a9fda65dbd4b70
Stats:     2 lines in 1 file changed: 1 ins; 0 del; 1 mod

8339648: ZGC: Division by zero in rule_major_allocation_rate

Reviewed-by: aboldtch, lucy, tschatzl

-------------

PR: https://git.openjdk.org/jdk/pull/20888