Well, after a few restarts, here is my output. I did a fresh pull from
git because I was getting some errors with missing *.h files in
gruel/src/swig or something like that. Hope this helps!
RUN_VOLK_TESTS: volk_32fc_32f_multiply_32fc_a
Program received signal SIGSEGV, Segmentation fault.
0xb7edbb74 in volk_32fc_32f_multiply_32fc_a_generic (cVector=0xb7448008,
aVector=0xb7768008, bVector=0xb78f8008, num_points=204600)
at
/home/fred/extras/gnuradio/gnuradio/volk/include/volk/volk_32fc_32f_multiply_32fc_a.h:74
74 *cPtr++ = (*aPtr++) * (*bPtr++);
(gdb) bt
#0 0xb7edbb74 in volk_32fc_32f_multiply_32fc_a_generic
(cVector=0xb7448008,
aVector=0xb7768008, bVector=0xb78f8008, num_points=204600)
at
/home/fred/extras/gnuradio/gnuradio/volk/include/volk/volk_32fc_32f_multiply_32fc_a.h:74
#1 0xb7ed4d68 in volk_32fc_32f_multiply_32fc_a_manual (cVector=0xb7448008,
aVector=0xb7768008, bVector=0xb78f8008, num_points=204600,
arch=0x8079ac4 "generic")
at /home/fred/extras/gnuradio/gnuradio/build/volk/lib/volk.c:749
#2 0x08064533 in run_cast_test3 (
func=0x80595c0 <volk_32fc_32f_multiply_32fc_a_manual@plt>, buffs=...,
vlen=204600, iter=999, arch=...)
at /home/fred/extras/gnuradio/gnuradio/volk/lib/qa_utils.cc:182
#3 0x08062770 in run_volk_tests (desc=...,
manual_func=0x80595c0 <volk_32fc_32f_multiply_32fc_a_manual@plt>,
name=..., tol=9.99999975e-05, scalar=..., vlen=204600, iter=1000,
best_arch_vector=0xbfffe714)
at /home/fred/extras/gnuradio/gnuradio/volk/lib/qa_utils.cc:351
#4 0x0805b3d3 in main (argc=1, argv=0xbffff204)
at /home/fred/extras/gnuradio/gnuradio/volk/apps/volk_profile.cc:38
(gdb)
Dump of assembler code for function volk_32fc_32f_multiply_32fc_a_generic:
0xb7edbb39 <+0>: push %ebp
0xb7edbb3a <+1>: mov %esp,%ebp
0xb7edbb3c <+3>: sub $0x14,%esp
0xb7edbb3f <+6>: mov 0x8(%ebp),%eax
0xb7edbb42 <+9>: mov %eax,-0x4(%ebp)
0xb7edbb45 <+12>: mov 0xc(%ebp),%eax
0xb7edbb48 <+15>: mov %eax,-0x8(%ebp)
0xb7edbb4b <+18>: mov 0x10(%ebp),%eax
0xb7edbb4e <+21>: mov %eax,-0xc(%ebp)
0xb7edbb51 <+24>: movl $0x0,-0x10(%ebp)
0xb7edbb58 <+31>: movl $0x0,-0x10(%ebp)
0xb7edbb5f <+38>: jmp 0xb7edbbae
<volk_32fc_32f_multiply_32fc_a_generic+117>
0xb7edbb61 <+40>: mov -0x8(%ebp),%eax
0xb7edbb64 <+43>: mov (%eax),%ecx
0xb7edbb66 <+45>: mov 0x4(%eax),%edx
0xb7edbb69 <+48>: mov %ecx,%eax
0xb7edbb6b <+50>: mov %eax,-0x14(%ebp)
0xb7edbb6e <+53>: flds -0x14(%ebp)
0xb7edbb71 <+56>: mov -0xc(%ebp),%eax
=> 0xb7edbb74 <+59>: flds (%eax)
0xb7edbb76 <+61>: fmulp %st,%st(1)
0xb7edbb78 <+63>: mov %edx,-0x14(%ebp)
0xb7edbb7b <+66>: flds -0x14(%ebp)
0xb7edbb7e <+69>: mov -0xc(%ebp),%eax
0xb7edbb81 <+72>: flds (%eax)
0xb7edbb83 <+74>: fmulp %st,%st(1)
0xb7edbb85 <+76>: fxch %st(1)
0xb7edbb87 <+78>: fstps -0x14(%ebp)
0xb7edbb8a <+81>: mov -0x14(%ebp),%ecx
0xb7edbb8d <+84>: fstps -0x14(%ebp)
0xb7edbb90 <+87>: mov -0x14(%ebp),%edx
0xb7edbb93 <+90>: mov -0x4(%ebp),%eax
0xb7edbb96 <+93>: mov %ecx,(%eax)
0xb7edbb98 <+95>: mov %edx,0x4(%eax)
0xb7edbb9b <+98>: addl $0x8,-0x4(%ebp)
0xb7edbb9f <+102>: addl $0x8,-0x8(%ebp)
0xb7edbba3 <+106>: addl $0x4,-0xc(%ebp)
0xb7edbba7 <+110>: addl $0x4,-0xc(%ebp)
0xb7edbbab <+114>: incl -0x10(%ebp)
0xb7edbbae <+117>: mov -0x10(%ebp),%eax
0xb7edbb78 <+63>: mov %edx,-0x14(%ebp)
0xb7edbb7b <+66>: flds -0x14(%ebp)
0xb7edbb7e <+69>: mov -0xc(%ebp),%eax
0xb7edbb81 <+72>: flds (%eax)
0xb7edbb83 <+74>: fmulp %st,%st(1)
0xb7edbb85 <+76>: fxch %st(1)
0xb7edbb87 <+78>: fstps -0x14(%ebp)
0xb7edbb8a <+81>: mov -0x14(%ebp),%ecx
0xb7edbb8d <+84>: fstps -0x14(%ebp)
0xb7edbb90 <+87>: mov -0x14(%ebp),%edx
0xb7edbb93 <+90>: mov -0x4(%ebp),%eax
0xb7edbb96 <+93>: mov %ecx,(%eax)
0xb7edbb98 <+95>: mov %edx,0x4(%eax)
0xb7edbb9b <+98>: addl $0x8,-0x4(%ebp)
0xb7edbb9f <+102>: addl $0x8,-0x8(%ebp)
0xb7edbba3 <+106>: addl $0x4,-0xc(%ebp)
0xb7edbba7 <+110>: addl $0x4,-0xc(%ebp)
0xb7edbbab <+114>: incl -0x10(%ebp)
0xb7edbbae <+117>: mov -0x10(%ebp),%eax
0xb7edbbb1 <+120>: cmp 0x14(%ebp),%eax
0xb7edbbb4 <+123>: jb 0xb7edbb61
<volk_32fc_32f_multiply_32fc_a_generic+40>
0xb7edbbb6 <+125>: leave
0xb7edbbb7 <+126>: ret
End of assembler dump.
Cheers,
Fred
On 03/16/2012 02:15 PM, Tom Rondeau wrote:
On Fri, Mar 16, 2012 at 3:11 PM, Frederick Stevens
<sk8tesgr...@gmail.com <mailto:sk8tesgr...@gmail.com>> wrote:
I've added your suggested changes. It will be an hour or so until
compilation is finished. Slackware CFLAGS or CXXFLAGS are usually
-O2 by default.
Cheers,
Fred
Thanks. GNU Radio resets these flag to -O3 right now, though.
Also, can't you run 'make -jN' to speed up the compilation?
Tom
On 03/16/2012 02:09 PM, Tom Rondeau wrote:
On Fri, Mar 16, 2012 at 3:03 PM, Frederick Stevens
<sk8tesgr...@gmail.com <mailto:sk8tesgr...@gmail.com>> wrote:
Here is the gcc info. It will take me a bit to re compile
gnuradio but I will turn on debugging in cmake.
gcc (GCC) 4.5.2
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying
conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
I am running kernel 3.2.7 from slackware-current and swig
2.0.4 everything else is from slackbuilds. I will have to
get versions for you if you need them.
Cheers,
Fred
While you're doing the rebuild, can you set the optimization flag
to -O2? It's -O3 right now by default, and every now and then it
can be a problem (haven't heard of one in a while, but it's been
a thing).
It should be setting '-DCMAKE_CXXFLAGS="-O2"'.
Tom
On 03/16/2012 01:50 PM, Nick Foster wrote:
On Fri, Mar 16, 2012 at 11:42 AM, Frederick Stevens
<sk8tesgr...@gmail.com <mailto:sk8tesgr...@gmail.com>> wrote:
Rafael,
Here is the output from gdb:
RUN_VOLK_TESTS: volk_32fc_32f_multiply_32fc_a
Program received signal SIGSEGV, Segmentation fault.
0xb7f2c6e0 in volk_32fc_32f_multiply_32fc_a_generic ()
from
/home/fred/extras/gnuradio/gnuradio/build/volk/lib/libvolk.so.0.0.0
Dump of assembler code for function
volk_32fc_32f_multiply_32fc_a_generic:
0xb7f2c6c0 <+0>: push %ebp
0xb7f2c6c1 <+1>: mov %esp,%ebp
0xb7f2c6c3 <+3>: push %edi
0xb7f2c6c4 <+4>: push %esi
0xb7f2c6c5 <+5>: mov 0x8(%ebp),%edx
0xb7f2c6c8 <+8>: mov 0xc(%ebp),%ecx
0xb7f2c6cb <+11>: mov 0x10(%ebp),%edi
0xb7f2c6ce <+14>: mov 0x14(%ebp),%esi
0xb7f2c6d1 <+17>: test %esi,%esi
0xb7f2c6d3 <+19>: je 0xb7f2c6fc
<volk_32fc_32f_multiply_32fc_a_generic+60>
0xb7f2c6d5 <+21>: xor %eax,%eax
0xb7f2c6d7 <+23>: mov %esi,%esi
0xb7f2c6d9 <+25>: lea 0x0(%edi,%eiz,1),%edi
=> 0xb7f2c6e0 <+32>: flds (%edi,%eax,8)
0xb7f2c6e3 <+35>: flds (%ecx,%eax,8)
0xb7f2c6e6 <+38>: fmul %st(1),%st
0xb7f2c6e8 <+40>: fxch %st(1)
0xb7f2c6ea <+42>: fmuls 0x4(%ecx,%eax,8)
0xb7f2c6ee <+46>: fxch %st(1)
0xb7f2c6f0 <+48>: fstps (%edx,%eax,8)
0xb7f2c6f3 <+51>: fstps 0x4(%edx,%eax,8)
0xb7f2c6f7 <+55>: inc %eax
0xb7f2c6f8 <+56>: cmp %eax,%esi
0xb7f2c6fa <+58>: ja 0xb7f2c6e0
<volk_32fc_32f_multiply_32fc_a_generic+32>
0xb7f2c6fc <+60>: pop %esi
0xb7f2c6fd <+61>: pop %edi
0xb7f2c6fe <+62>: pop %ebp
0xb7f2c6ff <+63>: ret
End of assembler dump.
I omitted the first part of the program execution since
everything seemed to be working fine. Hope this helps.
Let me know if you would like me to try something else.
Cheers,
Fred
OK, that's weird as hell. That's the generic implementation,
which is just a std::complex multiply in a for loop. Can you
give me your gcc version?
--n
On 03/16/2012 12:39 PM, Rafael Diniz wrote:
Also using the gdb "disassemble" command you could
trace which instruction
raised the fault.
Cheers,
Rafael Diniz
Well, that doesn't make me happy at all.
Especially since we just patched
the release yesterday...
Sounds like the AMD chip is handling something
wrong (or differently) with
the alignment. All vectors passed using
volk_profile are supposed to be
properly byte aligned.
Fred, can you just check for me what happens
when you run it under gdb?
Just run "gdb volk_profile" and when it crashes,
do a "bt" and post the
results of the backtrace here.
Thanks,
Tom
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