149050 2015-09-10 16:36:19 -0700 Fix JSC_objectsAreImmortal to work with JSC_useZombieMode 2015-09-14 13:28:31 -0700 1 1 1 Unclassified WebKit JavaScriptCore WebKit Local Build Unspecified Unspecified ASSIGNED P2 Normal --- 1 mark.lam mark.lam benjamin fpizlo ggaren keith_miller msaboff saam oldest_to_newest 1125072 0 mark.lam 2015-09-10 16:36:19 -0700 Previously, JSC_objectsAreImmortal works by marking all dead objects. If we also have JSC_useZombieMode enabled, the marking of dead objects may end up walking over zombified objects and crash the VM. To be compatible with JSC_useZombieMode, We can make JSC_objectsAreImmortal work by sweeping dead objects but never freeing them instead. 1125715 1 261127 mark.lam 2015-09-14 13:28:31 -0700 Created attachment 261127 work in progress AFAIK, this patch works. The only issue is that the test case is not able to reproduce the original issue (which I previously observed why debugging some real world bug). Archiving this patch for now and moving on until I see this issue again or think of how to reproduce it. 261127 2015-09-14 13:28:31 -0700 2015-09-14 13:28:31 -0700 work in progress bug-149050.patch text/plain 16261 mark.lam SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMTg5NzQ0KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDM0IEBA CisyMDE1LTA5LTE0ICBNYXJrIExhbSAgPG1hcmsubGFtQGFwcGxlLmNvbT4KKworICAgICAgICBG aXggSlNDX29iamVjdHNBcmVJbW1vcnRhbCB0byB3b3JrIHdpdGggSlNDX3VzZVpvbWJpZU1vZGUu CisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xNDkwNTAK KworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBQcmV2aW91 c2x5LCBKU0Nfb2JqZWN0c0FyZUltbW9ydGFsIHdvcmtzIGJ5IG1hcmtpbmcgYWxsIGRlYWQgb2Jq ZWN0cy4gIElmIHdlIGFsc28gaGF2ZQorICAgICAgICBKU0NfdXNlWm9tYmllTW9kZSBlbmFibGVk 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