On Tue, Jun 5, 2012 at 11:45 PM, Marcus D. Leech <[email protected]> wrote: > Got a core dump this evening from this evenings GIT build. On a Fedora > 12 machine (I know, horbly obsolete), > on a Centrino M CPU:
We did squash this bug. Why you gotta keep bringing up the past? What version of FFTW is on that machine? The block should be calling into fftw_malloc to get aligned arrays for the taps and the in/out buffers are from the fftw object, anyways, so they are aligned. So there's nothing that should be producing anything unaligned unless FFTW isn't working like I think it should be working. Tom > #0 0x003bb409 in volk_32fc_x2_multiply_32fc_a_sse3 () > from /usr/local/lib/libvolk.so.0.0.0 > #1 0x00396415 in get_volk_32fc_x2_multiply_32fc_a () > from /usr/local/lib/libvolk.so.0.0.0 > #2 0x0096b7e7 in gri_fft_filter_ccc_generic::filter(int, > std::complex<float> const*, std::complex<float>*) () > from /usr/local/lib/libgnuradio-core-3.6.1git.so.0.0.0 > #3 0x00972a5b in gr_fft_filter_ccc::work(int, std::vector<void const*, > std::allocator<void const*> >&, std::vector<void*, std::allocator<void*> >>&) () > from /usr/local/lib/libgnuradio-core-3.6.1git.so.0.0.0 > #4 0x00942187 in gr_sync_decimator::general_work(int, std::vector<int, > std::allocator<int> >&, std::vector<void const*, std::allocator<void > const*> >&, std::vector<void*, std::allocator<void*> >&) () > from /usr/local/lib/libgnuradio-core-3.6.1git.so.0.0.0 > #5 0x00929455 in gr_block_executor::run_one_iteration() () > from /usr/local/lib/libgnuradio-core-3.6.1git.so.0.0.0 > #6 0x00944bb3 in > gr_tpb_thread_body::gr_tpb_thread_body(boost::shared_ptr<gr_block>, int) > () from /usr/local/lib/libgnuradio-core-3.6.1git.so.0.0.0 > #7 0x0093eecc in > boost::detail::function::void_function_obj_invoker0<gruel::thread_body_wrapper<tpb_container>, > void>::invoke(boost::detail::function::function_buffer&) () from > /usr/local/lib/libgnuradio-core-3.6.1git.so.0.0.0 > #8 0x0031084c in boost::function0<void>::operator()() const () > from /usr/local/lib/libgruel-3.6.1git.so.0.0.0 > > Here's /proc/cpuinfo > > processor : 0 > vendor_id : GenuineIntel > cpu family : 6 > model : 14 > model name : Genuine Intel(R) CPU T2400 @ 1.83GHz > stepping : 8 > cpu MHz : 1833.000 > cache size : 2048 KB > physical id : 0 > siblings : 2 > core id : 0 > cpu cores : 2 > apicid : 0 > initial apicid : 0 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 10 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov > clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc > arch_perfmon bts aperfmperf pni monitor vmx est tm2 xtpr pdcm > bogomips : 3657.43 > clflush size : 64 > cache_alignment : 64 > address sizes : 32 bits physical, 32 bits virtual > power management: > > processor : 1 > vendor_id : GenuineIntel > cpu family : 6 > model : 14 > model name : Genuine Intel(R) CPU T2400 @ 1.83GHz > stepping : 8 > cpu MHz : 1833.000 > cache size : 2048 KB > physical id : 0 > siblings : 2 > core id : 1 > cpu cores : 2 > apicid : 1 > initial apicid : 1 > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 10 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov > clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc > arch_perfmon bts aperfmperf pni monitor vmx est tm2 xtpr pdcm > bogomips : 3657.52 > clflush size : 64 > cache_alignment : 64 > address sizes : 32 bits physical, 32 bits virtual > power management: > > > Seems to have been provoked by replacing a regular FIR filter with an > FFT filter (or rather, replacing > 3 FIR filters with 3 FFT filters with the same "shape" as the FIR > filters). > > Curiously enough, on Ubuntu 12.04 on *exactly the same hardware*, I > don't have this problem, even > with this evening's build. > > > > -- > Principal Investigator > Shirleys Bay Radio Astronomy Consortium > http://www.sbrac.org > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
