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8246442: nmethod::can_convert_to_zombie() asserts when not called by the sweeper

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Reviewed-by: dholmes, dcubed, kvn
This commit is contained in:
Erik Österlund 2020-06-08 12:15:30 +00:00
parent 9149f10fa4
commit 086c5f1750
1 changed files with 3 additions and 1 deletions
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4
src/hotspot/share/code/nmethod.cpp
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@ -1116,7 +1116,9 @@ bool nmethod::can_convert_to_zombie() {
// not_entrant. However, with concurrent code cache unloading, the state // not_entrant. However, with concurrent code cache unloading, the state
// might have moved on to unloaded if it is_unloading(), due to racing // might have moved on to unloaded if it is_unloading(), due to racing
// concurrent GC threads. // concurrent GC threads.
assert(is_not_entrant() || is_unloading(), "must be a non-entrant method"); assert(is_not_entrant() || is_unloading() ||
!Thread::current()->is_Code_cache_sweeper_thread(),
"must be a non-entrant method if called from sweeper");
// Since the nmethod sweeper only does partial sweep the sweeper's traversal // Since the nmethod sweeper only does partial sweep the sweeper's traversal
// count can be greater than the stack traversal count before it hits the // count can be greater than the stack traversal count before it hits the