libjack API of libjackserver.so is fully non functional #3
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nedko
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Aug 5, 2023
Fix the following misaligned access that happens when `pw-top` is started:
../src/modules/module-profiler.c:144:5: runtime error: member access within misaligned address 0x7f7fa11fe8d9 for type 'struct spa_pod_struct', which requires 4 byte alignment
0x7f7fa11fe8d9: note: pointer points here
60 00 00 01 00 00 00 00 00 00 00 00 88 02 00 00 0f 00 00 00 0a 00 04 00 00 00 00 00 01 00 01 00
^
#0 0x7f7fa64a65e1 in do_flush_event ../src/modules/module-profiler.c:144
#1 0x7f7fa36d658e in source_event_func ../spa/plugins/support/loop.c:650
#2 0x7f7fa36cfbab in loop_iterate ../spa/plugins/support/loop.c:483
#3 0x7f7fa80a71cd in pw_main_loop_run ../src/pipewire/main-loop.c:128
#4 0x55af46ff4722 in main ../src/daemon/pipewire.c:111
#5 0x7f7fa8a3984f (/usr/lib/libc.so.6+0x2384f) (BuildId: 2f005a79cd1a8e385972f5a102f16adba414d75e)
#6 0x7f7fa8a39909 in __libc_start_main (/usr/lib/libc.so.6+0x23909) (BuildId: 2f005a79cd1a8e385972f5a102f16adba414d75e)
PipeWire#7 0x55af46ff32a4 in _start (src/daemon/pipewire+0x42a4) (BuildId: 2d6250e405f52fb86992fef8584ccfdfdb85569f)
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior ../src/modules/module-profiler.c:144:5 in
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The jack client API is not operational for users of libjackserver.so
All functions fail, e.g.:
[W][54824.983372] jack | [ pipewire-jack.c: 4591 jack_cpu_load()] 'c != NULL' faile
d at ../pipewire-0.3.71/pipewire-jack/src/pipewire-jack.c:4591 jack_cpu_load() [W][54824.983759] jack | [ pipewire-jack.c: 4560 jack_get_buffer_size()] 'c != NULL' failed at ../pipewire-0.3.71/pipewire-jack/src/pipewire-jack.c:4560 jack_get_buffer_size(
)
Commit fb44d34 adds PIPEWIRE_INTERNAL env var check to jack emulation, an environment variable that is set early in pipewire's daemon main()
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