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8258058: improve description of OutOfMemoryError relevant flags

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OutOfMemoryError thrown out of JVM doesn't notify hotspot, so debug.cpp::report_java_out_out_memory does not handle it. ie. Some options don't respect OOMEs from Java libraries.  We need to make the description more clear to users.

Reviewed-by: dholmes, jiefu
This commit is contained in:
Xin Liu 2020-12-16 09:01:27 +00:00 committed by Jie Fu
parent cdb53422e8
commit 0c8cc2cde4
1 changed files with 7 additions and 4 deletions

11
src/hotspot/share/runtime/globals.hpp

@ -541,7 +541,8 @@ const intx ObjectAlignmentInBytes = 8;
"for examples") \
\
product(ccstrlist, OnOutOfMemoryError, "", \
"Run user-defined commands on first java.lang.OutOfMemoryError") \
"Run user-defined commands on first java.lang.OutOfMemoryError " \
"thrown from JVM") \
\
product(bool, HeapDumpBeforeFullGC, false, MANAGEABLE, \
"Dump heap to file before any major stop-the-world GC") \
@ -550,7 +551,8 @@ const intx ObjectAlignmentInBytes = 8;
"Dump heap to file after any major stop-the-world GC") \
\
product(bool, HeapDumpOnOutOfMemoryError, false, MANAGEABLE, \
"Dump heap to file when java.lang.OutOfMemoryError is thrown") \
"Dump heap to file when java.lang.OutOfMemoryError is thrown " \
"from JVM") \
\
product(ccstr, HeapDumpPath, NULL, MANAGEABLE, \
"When HeapDumpOnOutOfMemoryError is on, the path (filename or " \
@ -867,11 +869,12 @@ const intx ObjectAlignmentInBytes = 8;
range(0, 2) \
\
product(bool, ExitOnOutOfMemoryError, false, \
"JVM exits on the first occurrence of an out-of-memory error") \
"JVM exits on the first occurrence of an out-of-memory error " \
"thrown from JVM") \
\
product(bool, CrashOnOutOfMemoryError, false, \
"JVM aborts, producing an error log and core/mini dump, on the " \
"first occurrence of an out-of-memory error") \
"first occurrence of an out-of-memory error thrown from JVM") \
\
/* tracing */ \
\