| Summary: | Segfault writing to mmap'd /dev/dsp0 (uaudio) in PulseAudio on aarch64 | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Val Packett <val> |
| Component: | kern | Assignee: | freebsd-arm (Nobody) <freebsd-arm> |
| Status: | New --- | ||
| Severity: | Affects Only Me | CC: | emaste |
| Priority: | --- | ||
| Version: | CURRENT | ||
| Hardware: | arm64 | ||
| OS: | Any | ||
On aarch64, with the following USB soundcard: uaudio0: <GeneralPlus USB Audio Device, class 0/0, rev 1.10/1.00, addr 11> on usbus2 PulseAudio segfaults trying to memset the mmapped dsp device. This does not happen on amd64. Log: I: [(null)] module-oss.c: Device opened in O_RDWR mode. D: [(null)] oss-util.c: Asking for 4 fragments of size 4096 (requested 4408) I: [(null)] module-oss.c: Input -- 4 fragments of size 4096. I: [(null)] module-oss.c: Output -- 4 fragments of size 4096. D: [(null)] module-oss.c: Successfully mmap()ed input buffer. D: [(null)] module-device-restore.c: Database contains no data for key: source:oss_input.dsp0 D: [(null)] module-device-restore.c: Database contains no (or invalid) data for key: source:oss_input.dsp0:null I: [(null)] source.c: Created source 0 "oss_input.dsp0" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right I: [(null)] source.c: device.string = "/dev/dsp0" I: [(null)] source.c: device.api = "oss" I: [(null)] source.c: device.description = "/dev/dsp0" I: [(null)] source.c: device.access_mode = "mmap" I: [(null)] source.c: device.buffering.buffer_size = "16384" I: [(null)] source.c: device.buffering.fragment_size = "4096" I: [(null)] source.c: device.icon_name = "audio-input-microphone" D: [(null)] module-oss.c: Successfully mmap()ed output buffer. Failed to handle SIGBUS. zsh: abort pulseaudio --log-level=debug Backtrace: * thread #1, name = 'pulseaudio', stop reason = signal SIGSEGV: address access protected (fault address: 0x41be0000) * frame #0: 0x000000004083bf0c libc.so.7`memset + 140 frame #1: 0x0000000045c116f4 module-oss.so`module_oss_LTX_pa__init + 1632 frame #2: 0x0000000040327968 libpulsecore-12.2.so`pa_module_load + 484 frame #3: 0x0000000041bbb2b0 module-detect.so`module_detect_LTX_pa__init + 540 frame #4: 0x0000000040327968 libpulsecore-12.2.so`pa_module_load + 484 Syscalls: openat(AT_FDCWD,"/dev/dsp0",O_RDWR|O_NONBLOCK|O_NOCTTY|O_CLOEXEC,00) = 9 (0x9) fcntl(9,F_GETFD,) = 1 (0x1) ioctl(9,SNDCTL_DSP_SETDUPLEX,0x0) = 0 (0x0) ioctl(9,SNDCTL_DSP_GETCAPS,0xffffffffd310) = 0 (0x0) readlink("/dev/dsp0",0x412c44d0,99) ERR#22 'Invalid argument' open("/dev/sndstat",O_RDONLY|O_CLOEXEC,0666) = 10 (0xa) fcntl(10,F_GETFD,) = 1 (0x1) fstat(10,{ mode=crw-r--r-- ,inode=7,size=0,blksize=4096 }) = 0 (0x0) ioctl(10,TIOCGETA,0xffffffffcfe8) ERR#19 'Operation not supported by device' read(10,"Installed devices:\npcm0: <USB a"...,4096) = 93 (0x5d) read(10,0x4028f000,4096) = 0 (0x0) close(10) = 0 (0x0) ioctl(9,SNDCTL_DSP_SETFRAGMENT,0xffffffffd2b4) = 0 (0x0) ioctl(9,SNDCTL_DSP_SETFMT,0xffffffffd294) = 0 (0x0) ioctl(9,SOUND_PCM_WRITE_CHANNELS,0xffffffffd290) = 0 (0x0) ioctl(9,SNDCTL_DSP_SPEED,0xffffffffd28c) = 0 (0x0) ioctl(9,SNDCTL_DSP_GETBLKSIZE,0xffffffffd318) = 0 (0x0) pipe2(0x413078c0,O_CLOEXEC) = 0 (0x0) fcntl(10,F_GETFD,) = 1 (0x1) fcntl(11,F_GETFD,) = 1 (0x1) pipe2(0x413075f0,O_CLOEXEC) = 0 (0x0) fcntl(12,F_GETFD,) = 1 (0x1) fcntl(13,F_GETFD,) = 1 (0x1) pipe2(0x41307920,O_CLOEXEC) = 0 (0x0) fcntl(14,F_GETFD,) = 1 (0x1) fcntl(15,F_GETFD,) = 1 (0x1) pipe2(0x41307950,O_CLOEXEC) = 0 (0x0) fcntl(16,F_GETFD,) = 1 (0x1) fcntl(17,F_GETFD,) = 1 (0x1) write(4,"W",1) = 1 (0x1) write(4,"W",1) = 1 (0x1) ioctl(9,SNDCTL_DSP_GETISPACE,0xffffffffd320) = 0 (0x0) ioctl(9,SNDCTL_DSP_GETOSPACE,0xffffffffd320) = 0 (0x0) mmap(0x0,16384,PROT_READ,MAP_SHARED,9,0x0) = 1102954496 (0x41bdc000) mmap(0x0,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON|MAP_ALIGNED(12),-1,0x0) = 1102548992 (0x41b79000) mmap(0x0,16384,PROT_WRITE,MAP_SHARED,9,0x0) = 1102970880 (0x41be0000) SIGNAL 11 (SIGSEGV) code=SEGV_ACCERR trapno=0 addr=0x41be0000 sigprocmask(SIG_SETMASK,{ SIGSEGV },0x0) = 0 (0x0) Failed to handle SIGBUS. Memory mappings: PID START END PRT RES PRES REF SHD FLAG TP PATH 88061 0x41bdc000 0x41be0000 r-- 0 0 2 0 ----- dv 88061 0x41be0000 0x41be4000 -w- 0 0 2 0 ----- dv 88061 0x41c00000 0x45c01000 rw- 17 17 2 0 ----- df