193504 2019-01-16 12:21:49 -0800 Memory leak with IDB openCursor() 2022-07-01 18:49:06 -0700 1 1 1 Unclassified WebKit WebCore JavaScript Safari 12 Unspecified Unspecified RESOLVED CONFIGURATION CHANGED P2 Normal --- 1 zac.spitzer webkit-unassigned beidson ddkilzer sihui_liu timothy oldest_to_newest 1495159 0 359291 zac.spitzer 2019-01-16 12:21:49 -0800 Created attachment 359291 leak demonstration Safari seems to leaks memory with indexedDB and openCursor(), Chrome is fine, Firefox also has problems Run the attached test case with the web inspector open, 85 MB will be leaked from one record 1495430 1 zac.spitzer 2019-01-17 03:31:16 -0800 This is still a problem in Tech Preview 73 1499653 2 zac.spitzer 2019-01-29 12:40:47 -0800 This was previously discovered and reported via the Apple bug reporter https://qiita.com/smith/items/16d48083fe7a7e4b70ee 1880310 3 sihui_liu 2022-07-01 18:49:06 -0700 I am not able to reproduce the memory increase when reloading test page in Safari; I think the leak might be fixed by some previous changes like https://bugs.webkit.org/show_bug.cgi?id=193167. If you still see memory increase, please provide a new test case and we will look into it again. 359291 2019-01-16 12:21:49 -0800 2019-01-16 12:21:49 -0800 leak demonstration Leak Demo with openCursor().html text/html 1838 zac.spitzer DQo8IURPQ1RZUEUgaHRtbD4NCjx0aXRsZT5MZWFrIERlbW8gd2l0aCBvcGVuQ3Vyc29yKCk8L3Rp dGxlPg0Kb3BlbiB0aGUgd2ViIGluc3BlY3RvciBhbmQgcmVsb2FkLCB0aGVuIGNoZWNrb3V0IHRo ZSB0aW1lbGluZXMgdGFiLCB0aGVyZSdzIGFuIDg1IE1CIGxlYWsNCjxzY3JpcHQ+DQp2YXIgREJO QU1FID0gJ2N1cnNvcl9sZWFrJzsNCnZhciBWRVJTSU9OID0gJzEnOw0KdmFyIFNUT1JFID0gImR1 bW15IjsNCnZhciBkYjsNCnZhciBzdHIgPSAiaSBhbSBhIHRlc3Qgc3RyaW5nIjsNCg0Kc2VsZi5v bmxvYWQgPSBmdW5jdGlvbiAoKSB7DQogIAlpbmRleGVkREIuZGVsZXRlRGF0YWJhc2UoREJOQU1F KTsNCiAgCXZhciByZXF1ZXN0ID0gaW5kZXhlZERCLm9wZW4oREJOQU1FLCBWRVJTSU9OKTsNCg0K ICAJcmVxdWVzdC5vbnVwZ3JhZGVuZWVkZWQgPSBmdW5jdGlvbihldmVudCkgew0KCQlkYiA9IGV2 ZW50LnRhcmdldC5yZXN1bHQ7DQogIAkvLyBDcmVhdGUgYSBuZXcgb2JqZWN0IHN0b3JlIGlmIHRo aXMgaXMgdGhlIGZpcnN0IHRpbWUgd2UncmUgdXNpbmcNCiAgCS8vIHRoaXMgREJfTkFNRS9EQl9W RVJTSU9OIGNvbWJvLg0KICAJCWRiLmNyZWF0ZU9iamVjdFN0b3JlKFNUT1JFLCB7YXV0b0luY3Jl bWVudDogdHJ1ZX0pOw0KCX07DQoJcmVxdWVzdC5vbmVycm9yID0gZnVuY3Rpb24oZXJyKXsNCgkJ Y29uc29sZS5lcnJvcihlcnIpOw0KCX07DQoNCglyZXF1ZXN0Lm9uc3VjY2VzcyA9IGZ1bmN0aW9u IChldmVudCkgew0KCQlkYiA9IHJlcXVlc3QucmVzdWx0Ow0KCQlwcmVwVGVzdChkYik7DQoJfTsN Cn07DQpmdW5jdGlvbiBwcmVwVGVzdChkYil7DQoJdmFyIHRyYW5zID0gZGIudHJhbnNhY3Rpb24o U1RPUkUsICJyZWFkd3JpdGUiKTsNCgl2YXIgc3RvcmUgPSB0cmFucy5vYmplY3RTdG9yZShTVE9S RSk7DQoJLy8gbGV0cyBpbnNlcnQgYSBsYXJnZSBvYmplY3QNCglzdG9yZS5wdXQoew0KCQlhOiBz dHIucmVwZWF0KDUwMDAwMDApLA0KCQliOiBzdHIucmVwZWF0KDUwMDAwMDApDQoJfSk7DQoNCgl0 cmFucy5vbmNvbXBsZXRlID0gZnVuY3Rpb24oKXsNCgkJcnVudGVzdChkYik7DQoJfTsNCn0NCg0K ZnVuY3Rpb24gY2IocmVzdWx0KXsNCglpZiAoY29uc29sZS50YWtlSGVhcFNuYXBzaG90KQ0KICAg ICAgICBjb25zb2xlLnRha2VIZWFwU25hcHNob3QoInJlc3VsdCIpOw0KCWNvbnNvbGUubG9nKHJl c3VsdCk7DQp9DQoNCmZ1bmN0aW9uIHJ1bnRlc3QoZGIpIHsNCgl2YXIgb2JqZWN0U3RvcmUgPSBk Yi50cmFuc2FjdGlvbihTVE9SRSkub2JqZWN0U3RvcmUoU1RPUkUpOw0KCXZhciB0b1JldHVybiA9 IFtdOw0KCW9iamVjdFN0b3JlLm9wZW5DdXJzb3IoKS5vbnN1Y2Nlc3MgPSBmdW5jdGlvbihldmVu dCkgew0KCQkvL3ZhciBjdXJzb3IgPSBldmVudC50YXJnZXQucmVzdWx0Ow0KCQlpZiAoZXZlbnQu dGFyZ2V0LnJlc3VsdCkgew0KCQkJdG9SZXR1cm4ucHVzaChldmVudC50YXJnZXQucmVzdWx0LnZh bHVlKTsNCgkJCWV2ZW50LnRhcmdldC5yZXN1bHRbJ2NvbnRpbnVlJ10oKTsNCgkJfSBlbHNlIHsN CgkJCWlmIChjYikNCgkJCQljYih0b1JldHVybik7DQoJCX0NCgl9Ow0KDQoJaWYgKHNlbGYuZ2Mp IHsNCgkJc2VsZi5nYygpOw0KCQljb25zb2xlLmluZm8oImdjIik7DQoJfQ0KICBkb25lKCk7DQp9 DQoNCmZ1bmN0aW9uIGRvbmUoKSB7DQogIHNldFRpbWVvdXQoDQogICAgZnVuY3Rpb24oKSB7DQog ICAgICBpZiAoc2VsZi5nYykgew0KICAgICAgICBjb25zb2xlLmVycm9yKCJmb3JjaW5nIEdDIik7 DQogICAgICAgIHNlbGYuZ2MoKTsNCiAgICAgIH0NCiAgICB9LA0KICAgIDIwMDANCiAgKTsNCn0N Cg0KPC9zY3JpcHQ+DQo=