Re: [Discuss-gnuradio] Volk library invalid opcode exception

[Joanna Rutkowska]

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:
> 
> address@hidden gnuradio]$ volk_profile
> Using Volk machine: avx_64
> RUN_VOLK_TESTS: volk_16ic_s32f_deinterleave_real_32f_a
> Illegal instruction
> address@hidden 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:
> 
> address@hidden 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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