58229 2011-04-11 06:15:33 -0700 Assertion failure in CanvasRenderingContext2D::State::fontsNeedUpdate when invalidating the font cache after opening canvas/philip/tests/initial.reset.2dstate.html (occurs on Qt debug test bot) 2011-04-11 10:46:19 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) PC All RESOLVED FIXED P1 Critical --- 1 ossy webkit-unassigned bdakin mitz oldest_to_newest 383131 0 88998 ossy 2011-04-11 06:15:33 -0700 Created attachment 88998 $ cat crash.log | c++filt It doesn't crash in itself, but we can easily reproduce the crash: $ Tools/Scripts/run-webkit-tests --debug canvas/philip/tests/initial.reset.2dstate.html canvas/philip/tests/initial.reset.clip.html 383132 1 ossy 2011-04-11 06:16:32 -0700 This crash caused or revealed by http://trac.webkit.org/changeset/83396 383139 2 ossy 2011-04-11 06:24:20 -0700 I cc-ed Beth and Dan, the author and the reviewer of r83396. Could you check it please if it is a regression caused by r83396, or a Qt specific/platform independent bug revealed by r83396? 383155 3 mitz 2011-04-11 07:19:56 -0700 This is an assertion failure in code added in r83396. 383160 4 mitz 2011-04-11 07:37:43 -0700 I can reproduce this on Mac OS X by opening canvas/philip/tests/initial.reset.2dstate.html in Safari, and then using Font Book to disable or enable a font (which invalidates the font cache). 383236 5 mitz 2011-04-11 10:02:37 -0700 r83396 is wrong in that it uses pointers to State instances, but State is copyable. 383248 6 89023 mitz 2011-04-11 10:32:09 -0700 Created attachment 89023 Patch 383262 7 89023 ap 2011-04-11 10:43:04 -0700 Comment on attachment 89023 Patch Is m_font.fontSelector() never null here? 383265 8 mitz 2011-04-11 10:44:21 -0700 (In reply to comment #7) > (From update of attachment 89023 [details]) > Is m_font.fontSelector() never null here? If m_realizedFont is true, then m_font.fontSelector() should never be null. 383267 9 mitz 2011-04-11 10:46:19 -0700 Fixed in r83451. <http://trac.webkit.org/changeset/83451> 88998 2011-04-11 06:15:33 -0700 2011-04-11 06:15:33 -0700 $ cat crash.log | c++filt 1.txt text/plain 3734 ossy JCBjYXQgL3RtcC9sYXlvdXQtdGVzdC1yZXN1bHRzL2NhbnZhcy9waGlsaXAvdGVzdHMvaW5pdGlh bC5yZXNldC5jbGlwLXN0ZGVyci50eHQgfCBjKytmaWx0DQpBUkdVTUVOVCBCQUQ6IGZvbnRTZWxl Y3RvciwgZm9udFNlbGVjdG9yID09IG1fZm9udC5mb250U2VsZWN0b3IoKQ0KLi4vLi4vLi4vU291 cmNlL1dlYkNvcmUvaHRtbC9jYW52YXMvQ2FudmFzUmVuZGVyaW5nQ29udGV4dDJELmNwcCgyMjQp IDogdmlydHVhbCB2b2lkIFdlYkNvcmU6OkNhbnZhc1JlbmRlcmluZ0NvbnRleHQyRDo6U3RhdGU6 OmZvbnRzTmVlZFVwZGF0ZShXZWJDb3JlOjpGb250U2VsZWN0b3IqKQ0KU2VnbWVudGF0aW9uIGZh dWx0DQowOiAvaG9tZS9vc3ppL1dlYktpdC9XZWJLaXRCdWlsZC9EZWJ1Zy9iaW4vRHVtcFJlbmRl clRyZWUgWzB4ODA3MzBiOF0NCjE6IC9ob21lL29zemkvV2ViS2l0L1dlYktpdEJ1aWxkL0RlYnVn L2Jpbi9EdW1wUmVuZGVyVHJlZSBbMHg4MDczMzVlXQ0KMjogWzB4Zjc2ZjM0MDBdDQozOiAvaG9t 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