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All PSK and FSK digital modes broken with GR 3.8 #74

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kantooon opened this issue Oct 7, 2020 · 3 comments
Open

All PSK and FSK digital modes broken with GR 3.8 #74

kantooon opened this issue Oct 7, 2020 · 3 comments
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3rd party bug workaround Workaround exists

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@kantooon
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kantooon commented Oct 7, 2020 •
edited

Describe the bug
None of the digital modes except FreeDV work after upgrading to GR 3.8

To Reproduce
Attempt to use digital modes

Expected behavior
Decoding should work

Desktop (please complete the following information):
Debian 11

Additional context
Bug introduced in GR 3.8 convolutional decoder. For solution see below.
@kantooon kantooon added bug major Major bug, to be fixed ASAP labels Oct 7, 2020
kantooon added a commit that referenced this issue Oct 8, 2020
@kantooon
Replace cc_decoder with decode_ccsds_27_fb everywhere
09ce7e0 
This should take care of issue #74 (broken digi modes)
@kantooon
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kantooon commented Oct 8, 2020

Should be fixed with workaround but more testing required.

@kantooon kantooon closed this as completed Oct 9, 2020
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Workaround blocks had their own issue. Re-opening to document proper workaround this time.

@kantooon kantooon reopened this Oct 12, 2020
@kantooon kantooon added 3rd party workaround Workaround exists and removed major Major bug, to be fixed ASAP labels Oct 12, 2020
@kantooon
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kantooon commented Oct 12, 2020 •
edited

This is related to issue gnuradio/gnuradio#3376

To work around this, run volk_profile, then open ~/.volk/volk_config and ensure that the line starting with volk_8u_x4_conv_k7_r2_8u reads
volk_8u_x4_conv_k7_r2_8u spiral spiral, and if not, change it. After this, modems will work.

@kantooon kantooon pinned this issue Oct 12, 2020
@mohmmadd mohmmadd mentioned this issue Jan 28, 2021
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rear1019 added a commit to rear1019/volk that referenced this issue Mar 14, 2021
@rear1019
conv_k7_r2: Disable broken AVX2 code
61497d1 
gnuradio/gnuradio#2642
gnuradio/gnuradio#3376
qradiolink/qradiolink#74
gnuradio/gnuradio#4155
https://lists.gnu.org/archive/html/discuss-gnuradio/2020-07/msg00099.html
https://lists.gnu.org/archive/html/discuss-gnuradio/2021-03/msg00057.html

Signed-off-by: rear1019 <rear1019@posteo.de>
Alesha72003 pushed a commit to Alesha72003/volk that referenced this issue May 15, 2024
@rear1019
conv_k7_r2: Disable broken AVX2 code
58ecbe3 
gnuradio/gnuradio#2642
gnuradio/gnuradio#3376
qradiolink/qradiolink#74
gnuradio/gnuradio#4155
https://lists.gnu.org/archive/html/discuss-gnuradio/2020-07/msg00099.html
https://lists.gnu.org/archive/html/discuss-gnuradio/2021-03/msg00057.html

Signed-off-by: rear1019 <rear1019@posteo.de>
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