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merge revision(s) a4d5ee4f31: [Backport #18264]

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[Bug #18264] Fix memory leak in TracePoint

	TracePoint leaks memory because it allocates a `rb_tp_t` struct
	without ever freeing it (it is created with `RUBY_TYPED_NEVER_FREE`).
	---
	 test/ruby/test_settracefunc.rb | 10 ++++++++++
	 vm_trace.c                     |  2 +-
	 2 files changed, 11 insertions(+), 1 deletion(-)
This commit is contained in:
nagachika 2021-11-06 16:47:07 +09:00
parent b1696c87d3
commit 75e7499391
3 changed files with 14 additions and 4 deletions
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10
test/ruby/test_settracefunc.rb
View file

@ -564,6 +564,16 @@ class TestSetTraceFunc < Test::Unit::TestCase
}
end
# Bug #18264
def test_tracpoint_memory_leak
assert_no_memory_leak([], <<-PREP, <<-CODE, rss: true)
code = proc { TracePoint.new(:line) { } }
1_000.times(&code)
PREP
1_000_000.times(&code)
CODE
end
def trace_by_set_trace_func
events = []
trace = nil

6
version.h
View file

@ -12,11 +12,11 @@
# define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
#define RUBY_VERSION_TEENY 3
#define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
#define RUBY_PATCHLEVEL 148
#define RUBY_PATCHLEVEL 149
#define RUBY_RELEASE_YEAR 2021
#define RUBY_RELEASE_MONTH 10
#define RUBY_RELEASE_DAY 31
#define RUBY_RELEASE_MONTH 11
#define RUBY_RELEASE_DAY 6
#include "ruby/version.h"

2
vm_trace.c
View file

@ -730,7 +730,7 @@ tp_memsize(const void *ptr)
static const rb_data_type_t tp_data_type = {
"tracepoint",
{tp_mark, RUBY_TYPED_NEVER_FREE, tp_memsize,},
{tp_mark, RUBY_TYPED_DEFAULT_FREE, tp_memsize,},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY
};