DragonOS / Discussion / General Discussion: Dragon OS gqrx crash with SIGSEGV

skier - 2025-02-16

On rPi4 2G, running Dragon OS Pi64 Beta37,
I can compile gqrx using Qt Creator 6.0.2 (Qt 5.15.3, GCC 11.2.0 64 bit).
gqrx mainwindow.cpp calls CIoConfig::getDeviceList(), which calls osmosdr::device::find() -- and crashes with SIGSEGV.
(I'm trying to run gqrx with CaribouLite.)
Suggestions, please!
Thanks for your help.

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- Cemaxecuter - 2025-02-16
  
  I noticed the same issue even with the included GQRX. I’m trying to figure out what the best solution is - I believe when I had the 5.15 kernel this wasn’t an issue. I’m considering just making an image very specific for the Caribou.
  
  In the meantime, I wonder what happens if you run Soapy Remote with —bind and then have GQRX connect to that?
  
  Also interesting and annoying is that 24.04 on the Pi doesn’t create the needed smi interface no matter what I do - so that’s good you’re testing on the R37 build which is still 22.04.
  
  Sent from Proton Mail for iOS
  
  On Sat, Feb 15, 2025 at 9:45 PM, skier <xcskier@users.sourceforge.net> wrote:
  
  On rPi4 2G, running Dragon OS Pi64 Beta37,
  I can compile gqrx using Qt Creator 6.0.2 (Qt 5.15.3, GCC 11.2.0 64 bit).
  gqrx mainwindow.cpp calls CIoConfig::getDeviceList(), which calls osmosdr::device::find() -- and crashes with SIGSEGV.
  (I'm trying to run gqrx with CaribouLite.)
  Suggestions, please!
  Thanks for your help.
  
  Dragon OS gqrx crash with SIGSEGV
  
  Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
  
  To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
  
  alternate
  
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  - skier - 2025-02-16
    
    It might be interesting, and definitely educational to try using Soapy
    Remote, but GQRX doesn't get to showing the GUI, it seems there's no way
    to have it connect with Soapy Ramote. GQRX crashes in the MainWindow
    constructor when it calls CIoConfig::getDeviceList(devList);
    
    The crash occurs when getDeviceList() executes the line
    
    osmosdr::devices_t devs = osmosdr::device::find();
    
    I'm looking for that source to see if I can discover the problem (and,
    hopefully, its resolution).
    
    On 2025-02-16 05:17, Cemaxecuter wrote:
    
    I noticed the same issue even with the included GQRX. I'm trying to figure out what the best solution is - I believe when I had the 5.15 kernel this wasn't an issue. I'm considering just making an image very specific for the Caribou.
    
    In the meantime, I wonder what happens if you run Soapy Remote with --bind and then have GQRX connect to that?
    
    Also interesting and annoying is that 24.04 on the Pi doesn't create the needed smi interface no matter what I do - so that's good you're testing on the R37 build which is still 22.04.
    
    Sent from Proton Mail [2] for iOS
    
    On Sat, Feb 15, 2025 at 9:45 PM, skier xcskier@users.sourceforge.net wrote:
    
    On rPi4 2G, running Dragon OS Pi64 Beta37,
    I can compile gqrx using Qt Creator 6.0.2 (Qt 5.15.3, GCC 11.2.0 64 bit).
    gqrx mainwindow.cpp calls CIoConfig::getDeviceList(), which calls osmosdr::device::find() -- and crashes with SIGSEGV.
    (I'm trying to run gqrx with CaribouLite.)
    Suggestions, please!
    Thanks for your help.
    
    Dragon OS gqrx crash with SIGSEGV [1]
    
    Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
    
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    Dragon OS gqrx crash with SIGSEGV [3]
    
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    Links:
    
    [1]
    https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8
    [2] https://proton.me/mail/home
    [3]
    https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96
    
    alternate
    
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  - skier - 2025-02-18
    
    I built and installed SoapyRemote. Start it with: SoapySDRServer
    --bind
    
    That seems fine, but if I try to run GQRX, I again get
    
    signal errno / SIGSEGV / the process access invalid region of memory
    SIGSEGV: memory access violation
    
    On 2025-02-16 05:17, Cemaxecuter wrote:
    
    I noticed the same issue even with the included GQRX. I'm trying to figure out what the best solution is - I believe when I had the 5.15 kernel this wasn't an issue. I'm considering just making an image very specific for the Caribou.
    
    In the meantime, I wonder what happens if you run Soapy Remote with --bind and then have GQRX connect to that?
    
    Also interesting and annoying is that 24.04 on the Pi doesn't create the needed smi interface no matter what I do - so that's good you're testing on the R37 build which is still 22.04.
    
    Sent from Proton Mail [2] for iOS
    
    On Sat, Feb 15, 2025 at 9:45 PM, skier xcskier@users.sourceforge.net wrote:
    
    On rPi4 2G, running Dragon OS Pi64 Beta37,
    I can compile gqrx using Qt Creator 6.0.2 (Qt 5.15.3, GCC 11.2.0 64 bit).
    gqrx mainwindow.cpp calls CIoConfig::getDeviceList(), which calls osmosdr::device::find() -- and crashes with SIGSEGV.
    (I'm trying to run gqrx with CaribouLite.)
    Suggestions, please!
    Thanks for your help.
    
    Dragon OS gqrx crash with SIGSEGV [1]
    
    Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
    
    To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
    
    Dragon OS gqrx crash with SIGSEGV [3]
    
    Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
    
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    Links:
    
    [1]
    https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8
    [2] https://proton.me/mail/home
    [3]
    https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96
    
    alternate
    
    If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
  - skier - 2025-02-18
    
    I've built a CaribouLite Source block for GNU Radio Companion using
    
    ~/projects/cariboulite/software/gr-caribouLite/grc (cmake; make;
    sudo make install)
    
    and also built and installed
    
    ~/projects/cariboulite/software/libcariboulite
    
    I can add a CaribouLite Source block to a GRC flowgraph, but when I try
    to run the flowgraph I get the error
    
    from gnuradio import caribouLite
    ImportError: cannot import name 'caribouLite' from 'gnuradio'
    (/usr/local/lib/python3.10/dist-packages/gnuradio/init.py)
    
    How do I take care of this error?
    
    Thank you!
    
    alternate
    
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    - Cemaxecuter - 2025-02-18
      
      I believe I figured out why gqrx crashes. Working through it now as I build a specific image for the caribou.
      
      Sent from Proton Mail for iOS
      
      On Tue, Feb 18, 2025 at 2:41 AM, skier <xcskier@users.sourceforge.net> wrote:
      
      I've built a CaribouLite Source block for GNU Radio Companion using
      
      ~/projects/cariboulite/software/gr-caribouLite/grc (cmake; make;
      sudo make install)
      
      and also built and installed
      
      ~/projects/cariboulite/software/libcariboulite
      
      I can add a CaribouLite Source block to a GRC flowgraph, but when I try
      to run the flowgraph I get the error
      
      from gnuradio import caribouLite
      ImportError: cannot import name 'caribouLite' from 'gnuradio'
      (/usr/local/lib/python3.10/dist-packages/gnuradio/init.py)
      
      How do I take care of this error?
      
      Thank you!
      
      Dragon OS gqrx crash with SIGSEGV
      
      Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
      
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      - skier - 2025-02-18
        
        I'm eager to try the new image!
        
        On 2025-02-18 03:50, Cemaxecuter wrote:
        
        I believe I figured out why gqrx crashes. Working through it now as I build a specific image for the caribou.
        
        Sent from Proton Mail [2] for iOS
        
        On Tue, Feb 18, 2025 at 2:41 AM, skier xcskier@users.sourceforge.net wrote:
        
        I've built a CaribouLite Source block for GNU Radio Companion using
        
        ~/projects/cariboulite/software/gr-caribouLite/grc (cmake; make;
        sudo make install)
        
        and also built and installed
        
        ~/projects/cariboulite/software/libcariboulite
        
        I can add a CaribouLite Source block to a GRC flowgraph, but when I try
        to run the flowgraph I get the error
        
        from gnuradio import caribouLite
        ImportError: cannot import name 'caribouLite' from 'gnuradio'
        (/usr/local/lib/python3.10/dist-packages/gnuradio/init.py)
        
        How do I take care of this error?
        
        Thank you!
        
        Dragon OS gqrx crash with SIGSEGV [1]
        
        Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
        
        To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
        
        Dragon OS gqrx crash with SIGSEGV [3]
        
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        Links:
        
        [1]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064
        [2] https://proton.me/mail/home
        [3]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e
        
        alternate
        
        If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
        
        Cemaxecuter - 2025-02-19
        
        Can you give this a try
        
        https://drive.google.com/drive/folders/1_g9w-wCZjEcYVdGQJXAEYJerTJkkpM7y
        
        I gutted and swapped in gnuradio 3.11 as I thought the gr-CaribouLite would work.. wrong!
        
        But I’m pretty confident with the right arguments it’ll work with a stock generic soapy block.
        
        GQRX is working, sdrpp w/ soapy active works. CubicSDR works. I need to see but SDRAngel with —soapy may work.
        
        I haven’t rebuilt all gnuradio oot modules yet.
        
        Sent from Proton Mail for iOS
        
        On Tue, Feb 18, 2025 at 1:39 PM, skier <xcskier@users.sourceforge.net> wrote:
        
        I'm eager to try the new image!
        
        On 2025-02-18 03:50, Cemaxecuter wrote:
        
        I believe I figured out why gqrx crashes. Working through it now as I build a specific image for the caribou.
        
        Sent from Proton Mail [2] for iOS
        
        On Tue, Feb 18, 2025 at 2:41 AM, skier xcskier@users.sourceforge.net wrote:
        
        I've built a CaribouLite Source block for GNU Radio Companion using
        
        ~/projects/cariboulite/software/gr-caribouLite/grc (cmake; make;
        sudo make install)
        
        and also built and installed
        
        ~/projects/cariboulite/software/libcariboulite
        
        I can add a CaribouLite Source block to a GRC flowgraph, but when I try
        to run the flowgraph I get the error
        
        from gnuradio import caribouLite
        ImportError: cannot import name 'caribouLite' from 'gnuradio'
        (/usr/local/lib/python3.10/dist-packages/gnuradio/init.py)
        
        How do I take care of this error?
        
        Thank you!
        
        Dragon OS gqrx crash with SIGSEGV [1]
        
        Sent from sourceforge.net because you indicated interest in https://sourceforge.net/p/dragonos-focal/discussion/general/
        
        To unsubscribe from further messages, please visit https://sourceforge.net/auth/subscriptions/
        
        Dragon OS gqrx crash with SIGSEGV [3]
        
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        Links:
        
        [1]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064
        [2] https://proton.me/mail/home
        [3]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e
        
        Dragon OS gqrx crash with SIGSEGV
        
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        skier - 2025-02-19
        
        downloaded, flashed, booted: gqrx, cubicsdr, sdr++ (with soapy) all
        work.
        
        GRC has a CaribouLite Source module, but there's an "attribute" error:
        object 'caribouLite' has no attribute 'caribouLiteSource'
        
        --so, as you said, there's some work to be done on gnuradio modules.
        
        sdrangel starts, but can't initialize the browser's WebGL. I'll have
        to do some reading better understand sdrangel.
        
        --So, congratulations! Lots of success here. Thank you!
        
        ~David
        
        On 2025-02-18 17:11, Cemaxecuter wrote:
        
        Can you give this a try
        
        https://drive.google.com/drive/folders/1_g9w-wCZjEcYVdGQJXAEYJerTJkkpM7y
        
        I gutted and swapped in gnuradio 3.11 as I thought the gr-CaribouLite would work.. wrong!
        
        But I'm pretty confident with the right arguments it'll work with a stock generic soapy block.
        
        GQRX is working, sdrpp w/ soapy active works. CubicSDR works. I need to see but SDRAngel with --soapy may work.
        
        I haven't rebuilt all gnuradio oot modules yet.
        
        Sent from Proton Mail [1] for iOS
        
        On Tue, Feb 18, 2025 at 1:39 PM, skier xcskier@users.sourceforge.net wrote:
        
        I'm eager to try the new image!
        
        On 2025-02-18 03:50, Cemaxecuter wrote:
        
        I believe I figured out why gqrx crashes. Working through it now as I build a specific image for the caribou.
        
        Sent from Proton Mail [2] for iOS
        
        On Tue, Feb 18, 2025 at 2:41 AM, skier xcskier@users.sourceforge.net wrote:
        
        I've built a CaribouLite Source block for GNU Radio Companion using
        
        ~/projects/cariboulite/software/gr-caribouLite/grc (cmake; make;
        sudo make install)
        
        and also built and installed
        
        ~/projects/cariboulite/software/libcariboulite
        
        I can add a CaribouLite Source block to a GRC flowgraph, but when I try
        to run the flowgraph I get the error
        
        from gnuradio import caribouLite
        ImportError: cannot import name 'caribouLite' from 'gnuradio'
        (/usr/local/lib/python3.10/dist-packages/gnuradio/init.py)
        
        How do I take care of this error?
        
        THANK YOU!
        
        DRAGON OS GQRX CRASH WITH SIGSEGV [1]
        
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        DRAGON OS GQRX CRASH WITH SIGSEGV [3]
        
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        LINKS:
        
        [1]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064
        [2] https://proton.me/mail/home
        [3]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e
        
        Dragon OS gqrx crash with SIGSEGV [2]
        
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        Links:
        
        [1] https://proton.me/mail/home
        [2]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e/13bf
        [3]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e/13bf/c587
        
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        skier - 2025-02-19
        
        SDRangel also works. (I listened to a broadcast FM station using each
        of the radio apps: GQRX, sdr++, CubicSDR, and SDRAngel.)
        
        ~David
        
        On 2025-02-18 17:11, Cemaxecuter wrote:
        
        Can you give this a try
        
        https://drive.google.com/drive/folders/1_g9w-wCZjEcYVdGQJXAEYJerTJkkpM7y
        
        I gutted and swapped in gnuradio 3.11 as I thought the gr-CaribouLite would work.. wrong!
        
        But I'm pretty confident with the right arguments it'll work with a stock generic soapy block.
        
        GQRX is working, sdrpp w/ soapy active works. CubicSDR works. I need to see but SDRAngel with --soapy may work.
        
        I haven't rebuilt all gnuradio oot modules yet.
        
        Sent from Proton Mail [1] for iOS
        
        On Tue, Feb 18, 2025 at 1:39 PM, skier xcskier@users.sourceforge.net wrote:
        
        I'm eager to try the new image!
        
        On 2025-02-18 03:50, Cemaxecuter wrote:
        
        I believe I figured out why gqrx crashes. Working through it now as I build a specific image for the caribou.
        
        Sent from Proton Mail [2] for iOS
        
        On Tue, Feb 18, 2025 at 2:41 AM, skier xcskier@users.sourceforge.net wrote:
        
        I've built a CaribouLite Source block for GNU Radio Companion using
        
        ~/projects/cariboulite/software/gr-caribouLite/grc (cmake; make;
        sudo make install)
        
        and also built and installed
        
        ~/projects/cariboulite/software/libcariboulite
        
        I can add a CaribouLite Source block to a GRC flowgraph, but when I try
        to run the flowgraph I get the error
        
        from gnuradio import caribouLite
        ImportError: cannot import name 'caribouLite' from 'gnuradio'
        (/usr/local/lib/python3.10/dist-packages/gnuradio/init.py)
        
        How do I take care of this error?
        
        THANK YOU!
        
        DRAGON OS GQRX CRASH WITH SIGSEGV [1]
        
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        DRAGON OS GQRX CRASH WITH SIGSEGV [3]
        
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        LINKS:
        
        [1]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064
        [2] https://proton.me/mail/home
        [3]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e
        
        Dragon OS gqrx crash with SIGSEGV [2]
        
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        Links:
        
        [1] https://proton.me/mail/home
        [2]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e/13bf
        [3]
        https://sourceforge.net/p/dragonos-focal/discussion/general/thread/43ba6c154b/?limit=25#a6f8/5a96/3064/773e/13bf/c587
        
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