111441 2013-03-05 07:50:09 -0800 Cache flush problem on ARMv7 JSC 2013-03-08 01:29:52 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Linux RESOLVED FIXED P2 Normal --- 108645 1 rgabor webkit-unassigned barraclough benjamin cmarcelo fpizlo hausmann laszlo.gombos ojan.autocc oliver ossy psychon webkit.review.bot zherczeg oldest_to_newest 847678 0 rgabor 2013-03-05 07:50:09 -0800 The ARMv7 random crash problem is caused by cache flushing. https://bugs.webkit.org/show_bug.cgi?id=108632 just hide the real bug. The problem is similar to this bug: https://bugs.webkit.org/show_bug.cgi?id=77712 After changing the cache flush mechanism in ARMv7 to ARM traditional the problem has gone. 847683 1 ossy 2013-03-05 07:58:00 -0800 *** Bug 108632 has been marked as a duplicate of this bug. *** 847685 2 ossy 2013-03-05 07:59:32 -0800 Could you revert Simon's workaround ( http://trac.webkit.org/changeset/144170 ) after or with this patch? 848784 3 191737 rgabor 2013-03-06 06:07:16 -0800 Created attachment 191737 proposed fix In another patch we should make it more sophisticated but for now it solves the problem. I'm also reverting Simon's patch with this. 848968 4 ossy 2013-03-06 09:43:20 -0800 Yay, with this patch there are only 171 remaining inspector crashes on Thumb2, but they are unrelated to this bug - http://build.webkit.sed.hu/builders/ARMv7%20Linux%20Qt5%20Release%20%28Test%29/builds/7987 850949 5 191737 zherczeg 2013-03-08 00:27:34 -0800 Comment on attachment 191737 proposed fix r=me. But I think the current flush mechanism invalidates a large amount of unnecessary, so we should improve with it. 850984 6 191737 webkit.review.bot 2013-03-08 01:29:48 -0800 Comment on attachment 191737 proposed fix Clearing flags on attachment: 191737 Committed r145194: <http://trac.webkit.org/changeset/145194> 850985 7 webkit.review.bot 2013-03-08 01:29:52 -0800 All reviewed patches have been landed. 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