search

JvanKatwijk / qt-dab

Qt-DAB, a general software DAB (DAB+) decoder with a (slight) focus on showing the signal
http://www.sdr-j.tk
GNU General Public License v2.0
300 stars 62 forks source link

qt-dab-4.0 crashes (Segmentation fault) #257

Closed computer-wizard closed 2 years ago

computer-wizard commented 2 years ago

qt-dab-4.0 crashes (Segmentation fault) when the command line option -A 'file name' is used OS: Ubuntu 20.04 LTS

./Qt_DAB-x86_64.AppImage -A ham.dab main: Detected system language "en_CA" main: Set language "en_CA" main: Error while loading language specifics "en_CA" use English "en_GB" instead Segmentation fault (core dumped)

It starts normally without this option

JvanKatwijk commented 2 years ago

the inputfile for -A should have the form name freq name freq etc

where freq is something in KHz that the device understands

I do not have a problem with that, so show me the contents of the file used for the -A option

Op vr 18 mrt. 2022 om 22:34 schreef computer-wizard < @.***>:

qt-dab-4.0 crashes (Segmentation fault) when the command line option -A 'file name' is used OS: Ubuntu 20.04 LTS

./Qt_DAB-x86_64.AppImage -A ham.dab main: Detected system language "en_CA" main: Set language "en_CA" main: Error while loading language specifics "en_CA" use English "en_GB" instead Segmentation fault (core dumped)

Is starts normally without this option

— Reply to this email directly, view it on GitHub https://github.com/JvanKatwijk/qt-dab/issues/257, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCPHQHH6VWN3JKOPNC56WTVATZFJANCNFSM5RC6VLPA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

You are receiving this because you are subscribed to this thread.Message ID: @.***>

-- Jan van Katwijk

computer-wizard commented 2 years ago

This is the contents of my ham.dab file.

ve3tok1 431200 ve3tok2 434000 ve3tok3 440000 ve3tok4 910000 ve3tok5 1260000 ve3tok6 2410000

computer-wizard commented 2 years ago

This is how the system calls and signals (strace) dump ends.

openat(AT_FDCWD, "ham.dab", O_RDONLY) = 14 fstat(14, {st_mode=S_IFREG|0664, st_size=97, ...}) = 0 read(14, "ve3tok1 431200\nve3tok2 434000\n"..., 4096) = 97 read(14, "", 4096) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- +++ killed by SIGSEGV (core dumped) +++ Segmentation fault (core dumped)

computer-wizard commented 2 years ago

Sadly there are no debugging symbols otherwise I could run it with the GDP debugger to give some more answers.

JvanKatwijk commented 2 years ago

with me a file with that content works fine

Op zo 20 mrt. 2022 om 00:29 schreef computer-wizard < @.***>:

This is the contents of my ham.dab file.

ve3tok1 431200 ve3tok2 434000 ve3tok3 440000 ve3tok4 910000 ve3tok5 1260000 ve3tok6 2410000

— Reply to this email directly, view it on GitHub https://github.com/JvanKatwijk/qt-dab/issues/257#issuecomment-1073129663, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCPHQDELO2A5HWOBHME7I3VAZPPHANCNFSM5RC6VLPA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

You are receiving this because you commented.Message ID: @.***>

-- Jan van Katwijk

JvanKatwijk commented 2 years ago

The "reading in" of the file with user specified channel description is simple, just a combination of getline and sscanf,

Op zo 20 mrt. 2022 om 09:11 schreef jan van katwijk @.***

:

with me a file with that content works fine

Op zo 20 mrt. 2022 om 00:29 schreef computer-wizard < @.***>:

This is the contents of my ham.dab file.

ve3tok1 431200 ve3tok2 434000 ve3tok3 440000 ve3tok4 910000 ve3tok5 1260000 ve3tok6 2410000

— Reply to this email directly, view it on GitHub https://github.com/JvanKatwijk/qt-dab/issues/257#issuecomment-1073129663, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCPHQDELO2A5HWOBHME7I3VAZPPHANCNFSM5RC6VLPA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

You are receiving this because you commented.Message ID: @.***>

-- Jan van Katwijk

-- Jan van Katwijk

JvanKatwijk commented 2 years ago

I ve been playing around with different input files for the -A option, but so far everything worked fine. Since that does not help you the following suggestions a. the probably might fo something wrong when the line is too long. So, what linebreaks do you use As said, the implementstion is straightforward, reading in a line and scanning the line with sscanf, the readline is not protected, a line too long might cayse an error

Op zo 20 mrt. 2022 om 09:41 schreef jan van katwijk @.***

:

The "reading in" of the file with user specified channel description is simple, just a combination of getline and sscanf,

Op zo 20 mrt. 2022 om 09:11 schreef jan van katwijk < @.***>:

with me a file with that content works fine

Op zo 20 mrt. 2022 om 00:29 schreef computer-wizard < @.***>:

This is the contents of my ham.dab file.

ve3tok1 431200 ve3tok2 434000 ve3tok3 440000 ve3tok4 910000 ve3tok5 1260000 ve3tok6 2410000

— Reply to this email directly, view it on GitHub https://github.com/JvanKatwijk/qt-dab/issues/257#issuecomment-1073129663, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCPHQDELO2A5HWOBHME7I3VAZPPHANCNFSM5RC6VLPA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

You are receiving this because you commented.Message ID: @.***>

-- Jan van Katwijk

-- Jan van Katwijk

-- Jan van Katwijk

computer-wizard commented 2 years ago

Just the usual Linux\Unix newline \n character (0A)

JvanKatwijk commented 2 years ago

As said, there are two functions implementing the reading, a readline and a sscanf. Just for my understanding: If you start the program froim the command line without the -A option, everything works fine If you start the program from the command line with the -A filename option, then a crash occurs Is the crash immediate, i.e. before the GUI shows or shows the GUI -whatever short . During processing the channel file, for each line gthat is processed some text is output, i.e. @.*** dab-maxi]$ ./linux-bin/qt-dab-4.351 -A ../testband adding ve3tok1 431200 adding ve3tok2 434000 adding ve3tok3 440000 adding ve3tok4 910000 adding ve3tok5 1260000 adding ve3tok6 2410000

is there any such output?

I assume you are not compiling the stuff yourself. If needed I'll create a new instance of the 4.0 version with lots of additional print statements in it (I hate crashes that cannot be explained)

Op zo 20 mrt. 2022 om 21:10 schreef computer-wizard < @.***>:

Just the usual Linux\Unix newline \n character (0A)

— Reply to this email directly, view it on GitHub https://github.com/JvanKatwijk/qt-dab/issues/257#issuecomment-1073340301, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCPHQGSY373SY5ZQFMV3V3VA6A5FANCNFSM5RC6VLPA . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub.

You are receiving this because you commented.Message ID: @.***>

-- Jan van Katwijk

computer-wizard commented 2 years ago

The crash is immediately, no GUI is shown.  I see nothing of the processing of that file with 'adding ve3tok1..;, etc.

main: Detected system language "en_CA" main: Set language "en_CA" main: Error while loading language specifics "en_CA" use English "en_GB" instead Segmentation fault (core dumped)

above is all what I see.  

No, I didn't compile it myself.

On 2022-03-21 08:42, JvanKatwijk wrote:

As said, there are two functions implementing the reading, a readline and a sscanf. Just for my understanding: If you start the program froim the command line without the -A option, everything works fine If you start the program from the command line with the -A filename option, then a crash occurs Is the crash immediate, i.e. before the GUI shows or shows the GUI -whatever short . During processing the channel file, for each line gthat is processed some text is output, i.e. @.*** dab-maxi]$ ./linux-bin/qt-dab-4.351 -A ../testband adding ve3tok1 431200 adding ve3tok2 434000 adding ve3tok3 440000 adding ve3tok4 910000 adding ve3tok5 1260000 adding ve3tok6 2410000

is there any such output?

I assume you are not compiling the stuff yourself. If needed I'll create a new instance of the 4.0 version with lots of additional print statements in it (I hate crashes that cannot be explained)

When you change the way you look at things, the things you look at change 

Max Planck

computer-wizard commented 2 years ago

I'm running now version 4.35 and that runs fine with the -A option, so the crash seems to be solved in the latest Qt-dab version. I first run unset LD_LIBRARY_PATH to prevent that LD_LIBRARY_PATH overrules the local path for AppImage and so the issue with curl. You can close this Segmentation fault issue if you want so.

JvanKatwijk commented 2 years ago

https://www.dropbox.com/s/f6sl73gm35b1rhg/appdir.zip?dl=0

As far as I remember I sent you a compressed appdir since there wer issues with the curl library Here is a new version with some additional print statements. call AppRun -A xxxx

Op di 22 mrt. 2022 om 00:18 schreef computer-wizard < @.***>:

The crash is immediately, no GUI is shown. I see nothing of the processing of that file with 'adding ve3tok1..;, etc.

main: Detected system language "en_CA" main: Set language "en_CA" main: Error while loading language specifics "en_CA" use English "en_GB" instead Segmentation fault (core dumped)

above is all what I see.

No, I didn't compile it myself.

On 2022-03-21 08:42, JvanKatwijk wrote:

As said, there are two functions implementing the reading, a readline and a sscanf. Just for my understanding: If you start the program froim the command line without the -A option, everything works fine If you start the program from the command line with the -A filename option, then a crash occurs Is the crash immediate, i.e. before the GUI shows or shows the GUI -whatever short . During processing the channel file, for each line gthat is processed some text is output, i.e. @.*** dab-maxi]$ ./linux-bin/qt-dab-4.351 -A ../testband adding ve3tok1 431200 adding ve3tok2 434000 adding ve3tok3 440000 adding ve3tok4 910000 adding ve3tok5 1260000 adding ve3tok6 2410000

is there any such output?

I assume you are not compiling the stuff yourself. If needed I'll create a new instance of the 4.0 version with lots of additional print statements in it (I hate crashes that cannot be explained)

When you change the way you look at things, the things you look at change

Max Planck

— Reply to this email directly, view it on GitHub https://github.com/JvanKatwijk/qt-dab/issues/257#issuecomment-1074516083, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACCPHQC7VCGWQJMGHG4WX7LVBD7STANCNFSM5RC6VLPA . You are receiving this because you commented.Message ID: @.***>

-- Jan van Katwijk