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** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1861677
Title:
wavcapture crash with pulseaudio
Status in QEMU:
Incomplete
Bug description:
As of commit 28db64fce55,
using demo from QEMU advent calendar 2018 day 1:
https://www.qemu-advent-calendar.org/2018/download/day01.tar.xz
$ qemu-system-x86_64 -M pc \
-net none -soundhw pcspk \
-drive file=day01/fbird.img,format=raw,if=floppy \
-monitor stdio -S
(qemu) info qtree
bus: main-system-bus
type System
dev: i440FX-pcihost, id ""
bus: pci.0
dev: PIIX3, id ""
bus: isa.0
dev: isa-pcspk, id ""
audiodev = "pa"
iobase = 97 (0x61)
migrate = true
(qemu) wavcapture out.wav pa
(qemu) cont
(qemu) # Press 'up' key in demo
Segmentation fault (core dumped)
(gdb) bt
#0 0x0000555bfef0dc51 in audio_pcm_sw_write (sw=0x555c01333930, buf=0x0,
size=14728) at audio/audio.c:725
#1 0x0000555bfef10a49 in audio_capture_mix_and_clear (hw=0x555c012379b0,
rpos=0, samples=3682) at audio/audio.c:1054
#2 0x0000555bfef11059 in audio_run_out (s=0x555c01235550) at
audio/audio.c:1186
#3 0x0000555bfef11894 in audio_run (s=0x555c01235550, msg=0x555bff3e37e8
"timer") at audio/audio.c:1355
#4 0x0000555bfef10334 in audio_timer (opaque=0x555c01235550) at
audio/audio.c:831
#5 0x0000555bff33f041 in timerlist_run_timers (timer_list=0x555c00377b50) at
util/qemu-timer.c:588
#6 0x0000555bff33f0eb in qemu_clock_run_timers (type=QEMU_CLOCK_VIRTUAL) at
util/qemu-timer.c:602
#7 0x0000555bff33f3b6 in qemu_clock_run_all_timers () at
util/qemu-timer.c:688
#8 0x0000555bff33fb60 in main_loop_wait (nonblocking=0) at
util/main-loop.c:525
#9 0x0000555bfef0187c in main_loop () at vl.c:1683
#10 0x0000555bfef090ab in main (argc=12, argv=0x7ffec49184c8,
envp=0x7ffec4918530) at vl.c:4438
(gdb) p *sw
$1 = {card = 0x0, s = 0x0, info = {bits = 16, sign = 1, freq = 44100,
nchannels = 2, bytes_per_frame = 4, bytes_per_second = 176400, swap_endianness
= 0}, conv = 0x555bfef0ced1 <noop_conv>, ratio = 4294967296, buf =
0x555c0123f6f0,
rate = 0x555c007c0ec0, total_hw_samples_mixed = 0, active = 1, empty = 1,
hw = 0x555c014b12a0, name = 0x0, vol = {mute = 0, r = 4294967296, l =
4294967296}, callback = {opaque = 0x0, fn = 0x0}, entries = {le_next = 0x0,
le_prev = 0x555c014b1310}}
(gdb) p *sw->hw
$2 = {s = 0x555c01235550, enabled = 1, poll_mode = 0, pending_disable = 0,
info = {bits = 16, sign = 1, freq = 44100, nchannels = 2, bytes_per_frame = 4,
bytes_per_second = 176400, swap_endianness = 0},
clip = 0x555bfef16376 <clip_natural_int16_t_from_stereo>, ts_helper = 0,
mix_buf = 0x555c0059d680, buf_emul = 0x0, pos_emul = 0, pending_emul = 0,
size_emul = 0, samples = 16384, sw_head = {lh_first = 0x555c01333930}, cap_head
= {
lh_first = 0x0}, pcm_ops = 0x0, entries = {le_next = 0x0, le_prev = 0x0}}
sw->hw->pcm_ops is NULL.
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