Hello, I'm getting the invalid opcode exception whenever the volk library is used from gr/grc. It is also easy to reproduce by executing volk_profile:
[user@rflab gnuradio]$ volk_profile Using Volk machine: avx_64 RUN_VOLK_TESTS: volk_16ic_s32f_deinterleave_real_32f_a Illegal instruction [user@rflab gnuradio]$ dmesg [ 6920.211094] volk_profile[25627] trap invalid opcode ip:7f8145b74d40 sp:7fff41dfac78 error:0 in libvolk.so.0.0.0[7f8145ad7000+cf000] I tried v3.5.2 and v3.5.2 build directly from git, using the building script from here: http://gnuradio.org/redmine/repositories/changes/gnuradio/README Here's my cpuinfo: [user@rflab gnuradio]$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 42 model name : Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz stepping : 7 cpu MHz : 2591.660 cache size : 3072 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 1 apicid : 3 initial apicid : 3 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu de tsc msr pae cx8 sep cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc nopl aperfmperf pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes hypervisor lahf_lm ida arat epb pln pts dts bogomips : 5183.32 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: (and repeated 3x times for the other cores). And, FWIW, this is the autoconfig snippet: -- Configuring volk support... -- Enabling volk support. -- Override with -DENABLE_VOLK=ON/OFF -- Boost version: 1.46.0 -- Found the following Boost libraries: -- unit_test_framework -- checking for module 'orc-0.4' -- found orc-0.4, version 0.4.16 -- Found ORC: /usr/lib64/liborc-0.4.so -- Check size of void* -- Check size of void* - done -- Performing Test have_maltivec -- Performing Test have_maltivec - Failed -- Performing Test have_mfpu=neon -- Performing Test have_mfpu=neon - Failed -- Performing Test have_mfloat-abi=softfp -- Performing Test have_mfloat-abi=softfp - Failed -- Performing Test have_funsafe-math-optimizations -- Performing Test have_funsafe-math-optimizations - Success -- 32 overruled -- Performing Test have_m64 -- Performing Test have_m64 - Success -- Performing Test have_m3dnow -- Performing Test have_m3dnow - Success -- Performing Test have_msse4.2 -- Performing Test have_msse4.2 - Success -- Performing Test have_mpopcnt -- Performing Test have_mpopcnt - Success -- Performing Test have_mmmx -- Performing Test have_mmmx - Success -- Performing Test have_msse -- Performing Test have_msse - Success -- Performing Test have_msse2 -- Performing Test have_msse2 - Success -- Performing Test have_lorc-0.4 -- Performing Test have_lorc-0.4 - Success -- Performing Test have_msse3 -- Performing Test have_msse3 - Success -- Performing Test have_mssse3 -- Performing Test have_mssse3 - Success -- Performing Test have_msse4a -- Performing Test have_msse4a - Success -- Performing Test have_msse4.1 -- Performing Test have_msse4.1 - Success -- Performing Test have_mavx -- Performing Test have_mavx - Success -- Available arches: generic;64;3dnow;abm;popcount;mmx;sse;sse2;orc;sse3;ssse3;sse4_a;sse4_1;sse4_2;avx -- Available machines: generic;sse2_only;sse2_64;sse3_64;ssse3_64;sse4_a_64;sse4_1_64;sse4_2_64;avx_64;avx_only -- Using install prefix: /usr/local -- Found Doxygen: /usr/bin/doxygen One more thing to note that I'm running in a Xen PV VM, although this should not matter, as the usermode instructions execute directly on the CPU in this mode. Thanks, joanna.
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