Version: 3.7 SVN (using KDE 4.7.4) OS: Linux build of 3.8.0svn crashes when starting application Maya with vex amd64->IR: unhandled instruction bytes: 0xC2 0x0 0x0 0x66 0x66 0x66 0x90 0x6 6 ==29784== valgrind: Unrecognised instruction at address 0x12291c95. ==29784== at 0x12291C95: __intel_get_new_mem_ops_cpuid (in /home/mayadev/bran ch/main/build/optim/runTime/lib/libintlc.so.5) ==29784== by 0x3DC180F195: call_init.part.0 (in /lib64/ld-2.14.90.so) ==29784== by 0x3DC180F272: _dl_init (in /lib64/ld-2.14.90.so) ==29784== by 0x3DC1801719: ??? (in /lib64/ld-2.14.90.so) ==29784== Your program just tried to execute an instruction that Valgrind released valgrind 3.7.0 runs the app just fine. wondering if new code for AVX not quite correct ? this is from the Intel 11.1.073 compiler libintlc.so.5 0000000000025c70 <__intel_get_new_mem_ops_cpuid>: 25c70: 49 89 f8 mov %rdi,%r8 25c73: 49 89 f1 mov %rsi,%r9 25c76: 50 push %rax 25c77: 53 push %rbx 25c78: 51 push %rcx 25c79: 52 push %rdx 25c7a: 44 89 c0 mov %r8d,%eax 25c7d: 0f a2 cpuid 25c7f: 41 89 01 mov %eax,(%r9) 25c82: 41 89 59 04 mov %ebx,0x4(%r9) 25c86: 41 89 49 08 mov %ecx,0x8(%r9) 25c8a: 41 89 51 0c mov %edx,0xc(%r9) 25c8e: 5a pop %rdx 25c8f: 59 pop %rcx 25c90: 5b pop %rbx 25c91: 58 pop %rax 25c92: 44 89 c0 mov %r8d,%eax 25c95: c2 00 00 retq $0x0 25c98: 66 66 66 90 data32 data32 xchg %ax,%ax 25c9c: 66 66 66 90 data32 data32 xchg %ax,%ax --30426-- Contents of /proc/version: --30426-- Linux version 3.1.9-1.fc16.x86_64 (mockbuild@x86-15.phx2.fedoraproject.org) (gcc version 4.6.2 20111027 (Red Hat 4.6.2-1) (GCC) ) #1 SMP Fri Jan 13 16:37:42 UTC 2012 --30426-- Arch and hwcaps: AMD64, amd64-sse3-cx16 --30426-- Page sizes: currently 4096, max supported 4096 --30426-- Valgrind library directory: /opt/valgrind371svn/lib/valgrind --30426-- TT/TC: VG_(init_tt_tc) (startup of code management) --30426-- TT/TC: cache: 8 sectors of 27597024 bytes each = 220776192 total --30426-- TT/TC: table: 524168 total entries, max occupancy 340704 (65%) Reproducible: Didn't try Steps to Reproduce: attempt to run Maya 2012 under valgrind. Actual Results: valgrind crashes with unrecognized instruction Expected Results: should run as released valgrind 3.7.0 does If required I can try to create a simple test case, once I figure out how to call the Intel function
Created attachment 68207 [details] test case for reproducing Ilegal Instruction with 3.8.0 svn to compile, using Intel 11.1.073 (or probably any Intel 11.1 compiler) source /opt/intel/Compiler/11.1/073/bin/iccvars.sh intel64 icpc -o C2-crashes -fPIC -xsse3 -axSSE4.2 testme.cpp then run 3.8.0 svn build of valgrind valgrind380svn ./C2-crashes
Created attachment 68208 [details] binary executable that shows the crash - requires Intel runtim libraries
Urr, this is a regression caused by the recent overhaul of the instruction decoding framework for x86_64. Easily fixed.
Fixed, vex r2255.
I can verify that this bug is fixed. Thanks!