On 04/15/12 13:07, Joanna Rutkowska wrote: > 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: >
I meant: v3.5.2 and v3.5.3, of course. > 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. > > > > This body part will be downloaded on demand.
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