View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0007812 | ardour | bugs | public | 2019-09-20 02:13 | 2019-09-20 02:13 |
| Reporter | nstewart | Assigned To | |||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | new | Resolution | open | ||
| Platform | x86_64 | OS | Ubuntu Linux | OS Version | 18.04 |
| Product Version | 5.12 | ||||
| Summary | 0007812: Crash in ../libs/backends/alsa/alsa_audiobackend.cc:1955 | ||||
| Description | Crash in libalsa_audiobackend.so | ||||
| Steps To Reproduce | It seems to be not difficult to repro, though I haven't got the exact minimum sequence down. So, if I start Ardour in Alsa mode, with my UMC1820 audio interface and Alsa raw devices for Midi, I dont' see my AMT8 interface. If I change MIDI to None, then back to Alsa Raw, then go to MIDI Device Setup, I see the Broadcast plus MIDI 1-8 interfaces. rgareus: nstewart: how about ALSA-sequencer? nstewart: If I try to detect latency on MIDI IO8, they come up with only system:midi_capture1 and system:midi playback 1, not any of the 8 I expected to see. Try to detect latency, then try it again and it'll crash | ||||
| Additional Information | #0 0x0000559604277840 in () 0000001 0x00007fe3cbdb45b8 in ARDOUR::AlsaAudioBackend::main_process_thread() (this=0x559603697d20) at ../libs/backends/alsa/alsa_audiobackend.cc:1955 #2 0x00007fe3cbdaeab0 in pthread_process(void*) (arg=0x559603697d20) at ../libs/backends/alsa/alsa_audiobackend.cc:796 rgareus: that sounds like a midi-device is n/a nstewart: an actual device or an interface? rgareus: can't say rgareus: the fact that devices differ when you change to None and back to Raw. is already odd rgareus: the crash happens in /* de-queue incoming midi*/ [ 2993.842541] ardour-5.12.0[13540]: segfault at 7fc4758c1fc0 ip 00007fc4758c1fc0 sp 00007fc44aae80e8 error 15 in libalsa_audiobackend.so[7fc4758c1000+2000] [ 2993.842551] Code: 00 00 f8 27 19 90 c4 7f 00 00 f0 b9 2b 77 c5 55 00 00 83 83 6a 75 c4 7f 00 00 00 00 00 00 00 00 00 00 60 21 8c 75 c4 7f 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0 b8 ea 8f c4 7f | ||||
| Tags | No tags attached. | ||||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2019-09-20 02:13 | nstewart | New Issue |
