Date: Fri, 05 Jan 2018 20:55:07 +0000 From: bugzilla-noreply@freebsd.org To: gecko@FreeBSD.org Subject: [Bug 224917] www/firefox: bus error on stable/10 with 57.0.3,1 Message-ID: <bug-224917-21738-UapR9TmKwE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-224917-21738@https.bugs.freebsd.org/bugzilla/> References: <bug-224917-21738@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224917 --- Comment #2 from Jilles Tjoelker <jilles@FreeBSD.org> --- I rebuilt firefox-57.0.3,1 from a (slightly more recent) ports tree with SVN r457360 reverted. This seems to run stably for 20 minutes and the disassembly of the corresponding part of libxul.so shows that clang 4.0 has used two regular mov instructions instead of SSE: ceac73: 75 9b jne ceac10 <_ZN7mozilla3ipc14MessageChannel5ClearEv+0x90> ceac75: 49 8b b6 10 01 00 00 mov 0x110(%r14),%rsi ceac7c: 48 8b 7d c8 mov -0x38(%rbp),%rdi ceac80: e8 9b bf 00 00 callq cf6c20 <_ZNSt3__16__treeINS_12__value_typeImN7mozilla3ipc14MessageChannel13PromiseHolderEEENS_19__map_value_compareImS6_NS_4lessImEELb1EEENS_9allocatorIS6_EEE7destroyEPNS_11__tree_nodeIS6_PvEE> ceac85: 49 c7 86 18 01 00 00 movq $0x0,0x118(%r14) ceac8c: 00 00 00 00 ceac90: 4d 89 be 08 01 00 00 mov %r15,0x108(%r14) ceac97: 49 c7 86 10 01 00 00 movq $0x0,0x110(%r14) ceac9e: 00 00 00 00 ceaca2: 49 c7 46 38 00 00 00 movq $0x0,0x38(%r14) ceaca9: 00 ceacaa: 49 8b 7e 30 mov 0x30(%r14),%rdi ceacae: 48 85 ff test %rdi,%rdi ceacb1: 74 06 je ceacb9 <_ZN7mozilla3ipc14MessageChannel5ClearEv+0x139> -- You are receiving this mail because: You are the assignee for the bug.
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