155784 2016-03-22 23:59:44 -0700 REGRESSION(r198554): It made many regexp tests crash on ARMv7 Thumb2 platforms 2016-04-05 09:32:56 -0700 1 1 1 Unclassified WebKit JavaScriptCore Other Unspecified Unspecified RESOLVED DUPLICATE 155790 P1 Critical --- 108645 155711 1 ossy webkit-unassigned cgarcia clopez fpizlo gyuyoung.kim jh718.park msaboff ossy oldest_to_newest 1177292 0 ossy 2016-03-22 23:59:44 -0700 JSCOnly Linux ARMv7 Thumb2 Release - before: 139 fails - https://build.webkit.org/builders/JSCOnly%20Linux%20ARMv7%20Thumb2%20Release/builds/3 - after: 279 fails - https://build.webkit.org/builders/JSCOnly%20Linux%20ARMv7%20Thumb2%20Release/builds/4 GTK Linux ARM Release - before: 119 fails - https://build.webkit.org/builders/GTK%20Linux%20ARM%20Release/builds/10635 - after: 191 fails - https://build.webkit.org/builders/GTK%20Linux%20ARM%20Release/builds/10636 ARMv7 Traditional (ARMAssembler with ARM instruction set) and AArch64 platforms aren't affected. (note: I just reported this bug, but I don't have any time to investigate, debug, help fixing, create backtraces, etc.) 1177367 1 msaboff 2016-03-23 09:30:59 -0700 We are not seeing any of these crashes on iOS ARMv7 bots. When you can, please provide a stack trace for one of these failures. 1177396 2 ossy 2016-03-23 11:19:57 -0700 managed to get backtrace: $ ./jsc regexp-match.js --useLLInt=false ASSERTION FAILED: !(reinterpret_cast<intptr_t>(to) & 1) ../../Source/JavaScriptCore/assembler/ARMv7Assembler.h(2206) : static void JSC::ARMv7Assembler::relinkJump(void*, void*) 1 0xb64bc334 WTFCrash 2 0xb5f9d108 JSC::ARMv7Assembler::relinkJump(void*, void*) 3 0xb61c94bc JSC::AbstractMacroAssembler<JSC::ARMv7Assembler, JSC::MacroAssemblerARMv7>::repatchNearCall(JSC::CodeLocationNearCall, JSC::CodeLocationLabel) 4 0xb61c650a JSC::linkFor(JSC::ExecState*, JSC::CallLinkInfo&, JSC::CodeBlock*, JSC::JSFunction*, JSC::MacroAssemblerCodePtr) 5 0xb61a61f6 Segmentation fault (core dumped) 1177397 3 ossy 2016-03-23 11:21:10 -0700 Maybe it is a dup of bug154857 or bug154857 simply hides this bug. 1180834 4 ossy 2016-04-05 09:32:56 -0700 It seesm it is a dup of It seesm it is a dup of bug155790 *** This bug has been marked as a duplicate of bug 155790 ***