Date: Mon, 15 Aug 2016 09:58:11 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 211864] Compiler is using AVX instructions for CPUTYPE=btver1 Message-ID: <bug-211864-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211864 Bug ID: 211864 Summary: Compiler is using AVX instructions for CPUTYPE=btver1 Product: Base System Version: 11.0-RC1 Hardware: amd64 OS: Any Status: New Keywords: regression Severity: Affects Some People Priority: --- Component: misc Assignee: freebsd-bugs@FreeBSD.org Reporter: demik+freebsd@lostwave.net CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org Hello, While rebuilding some ports after upgrading to 11.0-RC1 (with freebsd-update), almost every binary is crashing with SIGILL The system hardware is bobcat based : CPU: AMD C-70 APU with Radeon(tm) HD Graphics (1000.02-MHz K8-class CPU) Bobcat CPUs have only MMX, SSE, SSE2, SSE3, SSSE3, SSE4A instructions. Compiling without CPUTYPE results in working binaries. With CPUTYPE=btver1, the binaries does not work, as the CPU does not have any AVX instructions : root@square:~ # lldb /usr/local/bin/sudo (lldb) target create "/usr/local/bin/sudo" Current executable set to '/usr/local/bin/sudo' (x86_64). (lldb) run test Process 71447 launching Process 71447 launched: '/usr/local/bin/sudo' (x86_64) Process 71447 stopped * thread #1: tid = 101195, 0x0000000800a5421e libsudo_util.so.0`??? + 286, stop reason = signal SIGILL: privileged instruction frame #0: 0x0000000800a5421e libsudo_util.so.0`??? + 286 libsudo_util.so.0`???: -> 0x800a5421e <+286>: vzeroupper 0x800a54221 <+289>: callq 0x800a511e4 ; symbol stub for: sudo_debug_exit_int_v1 0x800a54226 <+294>: movq 0x20ad93(%rip), %rax ; libsudo_util.so.0..got + 72 0x800a5422d <+301>: movq (%rax), %rax Some information : root@square:~ # uname -a FreeBSD square 11.0-RC1 FreeBSD 11.0-RC1 #0 r303979: Fri Aug 12 02:28:24 UTC 2016 root@releng2.nyi.freebsd.org:/usr/obj/usr/src/sys/GENERIC amd64 root@square:~ # cc -v FreeBSD clang version 3.8.0 (tags/RELEASE_380/final 262564) (based on LLVM 3.8.0) Target: x86_64-unknown-freebsd11.0 Thread model: posix InstalledDir: /usr/bin Everything was working fine while running 10.3-RELEASE this bug might be related to this one : https://reviews.llvm.org/D17682 Regards -- You are receiving this mail because: You are the assignee for the bug.
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