The curl from the github has 4.8.0 libs, not 4.7.0

So I removed 4.7.0 and replaced it with 4.8.0 from the github.

And I get the same message too, exactly the same.

I have had another crash as of an hour ago.

Jul 13 13:38:59 websdr start-websdr.sh[911]: Dropping Waterfall due tterminate called after throwing an instance of 'std::bad_alloc'
Jul 13 13:38:59 websdr start-websdr.sh[911]:   what():  std::bad_alloc
Jul 13 13:39:00 websdr start-websdr.sh[780]: /opt/PhantomSDR-Plus/start-websdr.sh: line 23:   911 Aborted                 (core dumped) build/spectrumserver --config $TOML < $FIFO

I also noticed this.
Jul 13 14:06:43 websdr start-websdr.sh[3478320]: build/spectrumserver: /usr/local/lib/libcurl.so.4: no version information available (required by build/spectrumserver)

I think this was caused by the removal of Ubuntu's curl and the install of the latest. I fixed this by deleting the old pointer to library and created a new pointer to the updated library.

sudo rm /usr/local/lib/libcurl.so.4

Then make a new symbolic link pointing to the new library.
sudo ln -s /usr/lib/x86_64-linux-gnu/libcurl.so.4.7.0 /usr/local/lib/libcurl.so.4

Then I recompiled spectrumserver and away we go.

And we crashed again with longjump...

Pfff....back 2 systemd files as only 1 doesn't restart the spectrum.

1 day and 14 hours....

And again....installed Curl 8.15-DEV and purged Ubuntu Curl, then recompiled spectrum, let's see what happens now.

Also changed compiling to -O1 for compiler options. Let's see what happens. Uses 2% more CPU now.

root@websdr:/# systemctl status websdr.service
● websdr.service - PhantomSDRPlus WebSDR
     Loaded: loaded (/lib/systemd/system/websdr.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2025-07-10 18:45:13 UTC; 2 days ago
   Main PID: 780 (start-websdr.sh)
      Tasks: 15 (limit: 18956)
     Memory: 581.8M
        CPU: 22h 35min 48.507s
     CGroup: /system.slice/websdr.service
             ├─780 /bin/bash /opt/PhantomSDR-Plus/start-websdr.sh
             └─911 build/spectrumserver --config config-rx888mk2.toml

19 hours and no crash, fingers crossed

Update: Active: active (running) since Fri 2025-07-11 16:39:00 CEST; 24h ago

Fingers crossed....

After Bas' latest suggestions, I am at two days and 11 hours with no crashes.

I noticed that spectrumserver was slowly taking up more and more memory,
from 231 to 253 in two days and a few hours (i have 8Gb RAM on this computer).

And then, I change receiver band, only one user, crash. After 5 sec server works.
I edit spectrumserver.cpp, compile, and I back to one startup script (as Bas sugested).

Now server normal work.
Wait for next crash...

Darko, 9a7aof

After Bas' latest suggestions, I am at 27 hours with no crashes.

Phil

I updated the buffers from 100 to 500, seems 100 is too low.

And in spectrumserver.cpp I changed the backlog size:

m_server.set_listen_backlog(16384); //Backlog upped from 8192 to 16384 for testing - Bas.
Maybe it's the backlog that is too small.

Test is running 4 hours now....so far no issues.

Quote from: Emmanuel SV1BTL on Jul 07, 2025, 10:29 PMStrange behavior during the last month. RX-888 USB disconnections, but the server is still running!
The only new condition is the heat - 38 and even 42 °C
To be honest, I am tired....

My receiver never (rarely) is the culprit. It is always spectrumserver. BUT, after Bas' latest suggestions, last check its at 23 hours with no systemd restart.

Next attempt....maybe the FIFO isn't working properly....

So I made 1 script and 1 systemd

start-websdr.sh

#!/bin/bash
cd /opt/PhantomSDR-Plus/

killall -s9 spectrumserver
killall -s9 rx888_stream

## Files to load
#FIFO=fifo.fifo
TOML=config-rx888mk2.toml

#[ ! -e "$FIFO" ] && mkfifo $FIFO

rx888_stream/target/release/rx888_stream -f ./rx888_stream/SDDC_FX3.img -s 60000000 --pga -d -r -g 50 -a 0 -m low -o - | build/spectrumserver --config $TOML

#exit
websdr.service

[Unit]
Description=PhantomSDRPlus WebSDR
Requires=network-online.target

[Service]
ExecStart=/opt/PhantomSDR-Plus/start-websdr.sh
Type=exec
Restart=on-failure
RestartSec=5

[Install]
Alias=websdr.service
WantedBy=multi-user.target
Let's see how this works.