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Re: [Discuss-gnuradio] gr_fir_fff: using 3DNow! core dump

From: Sid Boyce
Subject: Re: [Discuss-gnuradio] gr_fir_fff: using 3DNow! core dump
Date: Wed, 20 Mar 2013 14:58:17 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130307 Thunderbird/17.0.4

On 20/03/13 13:08, Tom Rondeau wrote:
On Tue, Mar 19, 2013 at 9:20 PM, Sid Boyce <address@hidden> wrote:
I have a program that uses gnuradio to work with a HiQSDR.

The first time I fired up qsdr it worked.
Closing it down and re-opening later I got the error. A reboot of the system
didn't solve it.

$ qsdr
starting server
Using Volk machine: sse4_a_64
gr_fir_fff: using 3DNow!
terminate called after throwing an instance of 'std::runtime_error'
   what():  unpaired unlock() call
Aborted (core dumped)
73 ... Sid.


What version of GNU Radio are you using for this? You should try to
pull in the filter from the filter module instead of from gr:

from gnuradio import filter
fir = filter.fir_filter_ccf(decim, taps)

Also, what is your processor?


This is the output from the openSUSE boxes and the CPU flags which don't include sse4_a.
Later I'll try rebuilding gnuradio with "-msse3" to see if that helps.
# qsdr
starting server
gri_fftw: can't import wisdom from /root/.gr_fftw_wisdom
Using Volk machine: avx_64_mmx_orc
>>> gr_fir_fff: using SSE
connection from  ""
TCP: conneced
>>> gr_fir_ccc: using SSE
>>> gr_fir_ccf: using SSE
>>> gr_fir_fcc: gr_fir_fcc: using SSE

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni pclmulqdq monitor ssse3 cx16 sse4_1 sse4_2 popcnt aes xsave avx lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 nodeid_msr topoext perfctr_core perfctr_nb arat cpb hw_pstate npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
73 ... Sid.

Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks

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