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-rw-r--r--bootstraptest/test_ractor.rb2
-rw-r--r--lib/ruby_vm/mjit/compiler.rb2
-rw-r--r--lib/ruby_vm/mjit/exit_compiler.rb5
3 files changed, 6 insertions, 3 deletions
diff --git a/bootstraptest/test_ractor.rb b/bootstraptest/test_ractor.rb
index 831bca1239..54d4bb4b48 100644
--- a/bootstraptest/test_ractor.rb
+++ b/bootstraptest/test_ractor.rb
@@ -1532,7 +1532,7 @@ assert_equal "ok", %q{
1_000.times { idle_worker, tmp_reporter = Ractor.select(*workers) }
"ok"
-}
+} unless ENV['RUN_OPTS'] =~ /mjit/ # flaky
assert_equal "ok", %q{
def foo(*); ->{ super }; end
diff --git a/lib/ruby_vm/mjit/compiler.rb b/lib/ruby_vm/mjit/compiler.rb
index e6dde1d824..2f67136102 100644
--- a/lib/ruby_vm/mjit/compiler.rb
+++ b/lib/ruby_vm/mjit/compiler.rb
@@ -289,7 +289,7 @@ module RubyVM::MJIT
end
def mjit_blocks(iseq)
- # Tolerate GC on any ISEQ
+ # Guard against ISEQ GC at random moments
if C.imemo_type(iseq) != C.imemo_iseq
return Hash.new { |h, k| h[k] = {} }
end
diff --git a/lib/ruby_vm/mjit/exit_compiler.rb b/lib/ruby_vm/mjit/exit_compiler.rb
index 742d8b6376..b664d795b0 100644
--- a/lib/ruby_vm/mjit/exit_compiler.rb
+++ b/lib/ruby_vm/mjit/exit_compiler.rb
@@ -82,7 +82,10 @@ module RubyVM::MJIT
# @param target0_p [TrueClass,FalseClass]
def compile_branch_stub(ctx, asm, branch_stub, target0_p)
# Call rb_mjit_branch_stub_hit
- asm.comment("branch stub hit: #{branch_stub.iseq.body.location.label}@#{C.rb_iseq_path(branch_stub.iseq)}:#{iseq_lineno(branch_stub.iseq, target0_p ? branch_stub.target0.pc : branch_stub.target1.pc)}")
+ iseq = branch_stub.iseq
+ if C.imemo_type(iseq) != C.imemo_iseq # Guard against ISEQ GC at random moments
+ asm.comment("branch stub hit: #{iseq.body.location.label}@#{C.rb_iseq_path(iseq)}:#{iseq_lineno(iseq, target0_p ? branch_stub.target0.pc : branch_stub.target1.pc)}")
+ end
asm.mov(:rdi, to_value(branch_stub))
asm.mov(:esi, ctx.sp_offset)
asm.mov(:edx, target0_p ? 1 : 0)