Is there something like this or desktop only? If yes, where can I find them?
Regards
Hi,
By mistake we did not pack the Recording and the Playback folders with PVRCarbon which carry these libraries. We are making an update today to include them. By the way, the recommended way of recording is from the desktop GUI using remote connection (principally on Android).
Regards.
Carlos.
Greetings,
I tried the gles libraries from the Linux_armv8_64 directory and it crashes with a segmentation fault.
Recorder Version v0.5 20.1@577104
Hello,
Do you have more details like an error log or similar?
Thanks.
Carlos.
How do I generate that with maximum verbose?
That’s all I can currently offer:
PVRCarbon Recorder v0.5 (20.1@5771704)
PVRCarbon|Note: By default to support multi-platform playback we override api alignment values to our recommended values. To disable this set the align recommended option to false
PVRCarbon|Writing intermediate data to ‘/usr/bin/tmyapp.0000.parts’
minicoredumper: dump: auxv link_map name (/media/mp000/pvrcarbon/libPVRCarbon.so): 39 bytes @ 0x7fb9a87cc0
minicoredumper: dump: build-id: (/media/mp000/pvrcarbon/libPVRCarbon.so) - found
PVRCarbon Recorder v0.5 (20.1@5771704)
PVRCarbon|Note: By default to support multi-platform playback we override api alignment values to our recommended values. To disable this set the align
PVRCarbon|Debugger detected: This may interfere with tracking mapped memory which relies on segmentation faults. If it does, please configure your debugger to ignore SIGSEGVs
PVRCarbon|To ignore SIGSEGVs with GDB: (gdb) handle SIGSEGV nostop noprint
PVRCarbon|To ignore SIGSEGVs with LLDB: (lldb) pro hand -p true -s false SIGSEGV
PVRCarbon|Writing intermediate data to ‘/usr/bin/myapp.0000.parts’
PVRCarbon|Signal 11 (Segmentation fault) caught
PVRCarbon|-----
PVRCarbon|0] (unknown) /media/mp000/pvrcarbon/libPVRCarbon.so
PVRCarbon|1] (unknown) /usr/bin/myapp
PVRCarbon|2] (unknown) /usr/bin/myapp
PVRCarbon|3] (unknown) /usr/bin/myapp
PVRCarbon|4] (unknown) /usr/bin/myapp
PVRCarbon|5] (unknown) /usr/bin/myapp
PVRCarbon|6] (unknown) /usr/bin/myapp
…
PVRCarbon|9] (unknown) /lib/libpthread.so.0
PVRCarbon|-----
minicoredumper: dump: auxv link_map name (/media/mp000/pvrcarbon/libPVRCarbon.so): 39 bytes @ 0x7fb2fd4cc0
minicoredumper: dump: build-id: (/media/mp000/pvrcarbon/libPVRCarbon.so) - found
Hi,
I think that might be enough for us to have a look. Which is your Linux platform?
Thanks.
Carlos.
Hello,
Based on this output we believe the debugger may be intercepting seg faults we rely on for memory tracking. If you are personally capturing your application from within a debugger you might need to configure gdb/lldb to ignore SIGSEGVs.
This should only be an issue for Vulkan applications and OpenGL ES applications that use the EXT_buffer_storage extension.
If this is not the case, please make sure the recorder can write its output to /usr/bin as the application will exit if it fails to write the output. If this does not help and you are using OpenGL ES, let us know how you have setup the recorder and where your host egl/gl libraries live.
Regards.
Carlos.
But then it should work if I don’t use gdb, right? I had scenarios where I don’t use gdb and it still segfaults within libPVRCarbon.so.
Linux is Yocto.
Hi,
GDB will get in the way if you are using Vulkan or the EXT_buffer_storage extension for OGLES.
If this is not the case, it could be caused by not being able to write to the output location or by a wrong setup.
Regards
Carlos.
Hello,
It is strange because your GDB output doesn’t show any sign that it is loading from your config file.
In your description you have placed it in the libPVRCarbon path so it should be picked up. Maybe a permission issue is stopping it from being found/opened? ? Maybe the gdb output was from a run without the config?
You could try setting the config options in the environment:
export PVRCARBON_filename=[path to your carbon file]
If the drivers are in /usr/lib/ as mentioned in the config, then you shouldn’t need to set anything else as PVRCarbon will look for them in that location.
Regards
Carlos.
Didn’t help. Still crashes. That’s all the output I get:
17:18:14.634 [Warn] [user] nav: PVRCarbon Recorder v0.5 (20.1@5771704)
17:18:17.720 [Error] [user] minicoredumper: dump: auxv link_map name (/media/mp000/pvrcarbon/libGLESv2.so.2): 38 bytes @ 0x7fad5fad20
17:18:17.724 [Error] [user] minicoredumper: dump: auxv link_map name (/media/mp000/pvrcarbon/libPVRCarbon.so): 39 bytes @ 0x7fa7ae2cc0
17:18:17.825 [Error] [user] minicoredumper: dump: build-id: (/media/mp000/pvrcarbon/libPVRCarbon.so) - found
17:18:17.842 [Error] [user] minicoredumper: dump: build-id: (/media/mp000/pvrcarbon/libGLESv2.so) - found
Hi,
That is very strange. Have you checked that the OGLES libraries are in /usr/lib/ and that /usr/bin/ has write permissions. Could you attach you config file? Maybe that will give us a clue.
Regards
Carlos.
Ok, I made another attempt this time with version 0.6 of the recorder:
No config file used, but environment:
PVRCARBON_filename=/media/mp000/myprocess.pvrcbn
17:41:55.790 [Error] [kern] PVR_K: 245: HTBInit: HTBufferSizeInKB = 64
17:41:55.793 [Error] [kern] PVR_K: 245: RGX Device initialised with BVNC 4.45.2.58
17:42:10.058 [Warn] [user] nav: PVRCarbon Recorder v0.6 (20.2@5880259)
17:42:10.296 [Warn] [user] nav: PVRCarbon Recorder v0.6 (20.2@5880259)
17:42:10.296 [Warn] [user] nav: PVRCarbon|Note: By default to support multi-platform playback we override api alignment values to our recommended values. To disable this set the align recommended option to false
17:42:10.296 [Warn] [user] nav: PVRCarbon|Writing intermediate data to ‘/media/mp000/myprocess.parts’
Then I try to end the application with kill -SIGABRT :
17:43:05.213 [Warn] [user] nav: PVRCarbon|Signal 15 (Terminated) caught
17:43:05.213 [Warn] [user] nav: PVRCarbon|-----
17:43:05.213 [Warn] [user] nav: PVRCarbon|0] __poll /lib/libc.so.6
17:43:05.213 [Warn] [user] nav: PVRCarbon|1] (unknown) /usr/bin/myprocess
17:43:05.213 [Warn] [user] nav: PVRCarbon|2] (unknown) /usr/bin/myprocess
17:43:05.213 [Warn] [user] nav: PVRCarbon|3] __libc_start_main /lib/libc.so.6
17:43:05.213 [Warn] [user] nav: PVRCarbon|-----
It doesn’t crash but it also never writes /media/mp000/myprocess.pvrcbn.
Hi desperado,
Thanks for your message, I’ll forward it to the Tools Team and come back to you shortly. I can see you also logged this message through our support web (https://pvrsupport.imgtec.com), we’ll answer you there.
Best regards,
Alejandro
