Looking at perf and strace output, the case looks similar to what was described in an upstream commit [1] and its backing bug report [2]. (Haven't tried the workarounds nor testing or newer version, yet.)
[1] https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/commit/37358e42c49abe3d83b344452749461b70fdc80f [2] https://bugzilla.kernel.org/show_bug.cgi?id=199365#c6 -- strace log: 22:59:37.624592 ppoll([{fd=4, events=POLLIN}, ...], 34, NULL, NULL, 8) = 1 ([{fd=18, revents=POLLIN}]) > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_poll+0x171) > [0x26151] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_iterate+0x2f) > [0x2674f] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_run+0x20) [0x26800] 22:59:37.628232 read(18, "\1\0\0\0\10\0\0\0\0\0\0\0\20\0\0\0controlC1\0\0\0\0\0\0\0"..., 272) = 64 > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-14.2.so(pa_read+0x21) > [0x28441] > /usr/lib/pulse-14.2/modules/module-udev-detect.so() [0x3892] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_dispatch+0x1b3) > [0x26433] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_iterate+0x3e) > [0x2675e] 22:59:37.632976 read(18, 0x7ffcd669eb60, 272) = -1 EAGAIN (Zasoby chwilowo niedostępne) 22:59:37.637756 access("/dev/snd/controlC1", R_OK|W_OK) = 0 > /usr/lib/pulse-14.2/modules/module-udev-detect.so() [0x281f] > /usr/lib/pulse-14.2/modules/module-udev-detect.so() [0x3c25] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_dispatch+0x1b3) > [0x26433] 22:59:37.642327 write(38, "\1\0\0\0\0\0\0\0", 8) = 8 > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-14.2.so(pa_write+0x62) > [0x284d2] > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-14.2.so(pa_fdsem_post+0xa6) > [0x2fa36] > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-14.2.so(pa_asyncmsgq_dispatching+0xc1) > [0x1a071] > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-14.2.so(pa_asyncmsgq_send+0xb3) > [0x19493] > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-14.2.so(pa_sink_state_to_string+0x361) > [0x53e61] > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecore-14.2.so(pa_card_suspend+0x8a) > [0x2920a] > /usr/lib/pulse-14.2/modules/module-udev-detect.so() [0x3c25] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_dispatch+0x1b3) > [0x26433] 22:59:37.651251 read(4, 0x7ffcd669ecee, 10) = -1 EAGAIN (Zasoby chwilowo niedostępne) > /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-14.2.so(pa_read+0x21) > [0x28441] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_prepare+0x5e) > [0x25cae] > /usr/lib/x86_64-linux-gnu/libpulse.so.0.23.0(pa_mainloop_iterate+0x20) > [0x26740] [start over from ppoll()] -- Package-specific info: File '/etc/default/pulseaudio' does not exist -- System Information: Debian Release: 11.6 APT prefers stable-security APT policy: (900, 'stable-security'), (900, 'stable-debug'), (900, 'proposed-updates'), (900, 'stable'), (800, 'oldstable-proposed-updates'), (800, 'oldstable-debug'), (800, 'oldstable'), (700, 'unstable'), (600, 'experimental'), (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'proposed-updates-debug'), (1, 'experimental-debug') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.1.3+ (SMP w/8 CPU threads; PREEMPT) Kernel taint flags: TAINT_OOT_MODULE Locale: LANG=pl_PL.UTF-8, LC_CTYPE=pl_PL.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages pulseaudio depends on: ii adduser 3.118 ii init-system-helpers 1.60 ii libasound2 1.2.4-1.1 ii libasound2-plugins 1.2.2-2 ii libc6 2.31-13+deb11u5 ii libcap2 1:2.44-1 ii libdbus-1-3 1.12.24-0+deb11u1 ii libgcc-s1 10.2.1-6 ii libice6 2:1.0.10-1 ii libltdl7 2.4.6-15 ii liborc-0.4-0 1:0.4.32-1 ii libpulse0 14.2-3 ii libsm6 2:1.2.3-1 ii libsndfile1 1.0.31-2 ii libsoxr0 0.1.3-4 ii libspeexdsp1 1.2~rc1.2-1.1 ii libstdc++6 10.2.1-6 ii libsystemd0 247.3-7+deb11u1 ii libtdb1 1.4.3-1+b1 ii libudev1 247.3-7+deb11u1 ii libwebrtc-audio-processing1 0.3-1+b1 ii libx11-6 2:1.7.2-1 ii libx11-xcb1 2:1.7.2-1 ii libxcb1 1.14-3 ii libxtst6 2:1.2.3-1 ii lsb-base 11.1.0 ii pulseaudio-utils 14.2-3 Versions of packages pulseaudio recommends: ii dbus-user-session 1.12.24-0+deb11u1 ii libpam-systemd [logind] 247.3-7+deb11u1 ii rtkit 0.13-4 Versions of packages pulseaudio suggests: ii paprefs 1.1-2 ii pavucontrol 4.0-2 ii pavumeter 0.9.3-4+b3 ii udev 247.3-7+deb11u1 -- Michał Mirosław _______________________________________________ pkg-pulseaudio-devel mailing list pkg-pulseaudio-devel@alioth-lists.debian.net https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/pkg-pulseaudio-devel
