[pulseaudio-tickets] [Bug 54881] Assertion '!s->thread_info.rewind_requested' failed at pulsecore/sink.c:1271, function pa_sink_render_into_full(). Aborting.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54881

--- Comment #15 from Raymond <superquad.vortex2 at gmail.com> ---
   to debug this issue, you need to enable DEBUG_TIMING to check the debugged
info or call pa_alsa_dump after pulseaudio print "Unerrun!" and check whether
the appl_ptr is behind hw_ptr


   /* We got a dropout. What a mess! */
        left_to_play = 0;
        underrun = TRUE;

#if 0
        PA_DEBUG_TRAP;
#endif

        if (!u->first && !u->after_rewind)
-          if (pa_log_ratelimit(PA_LOG_INFO))
+          if (pa_log_ratelimit(PA_LOG_INFO)) {
                pa_log_info("Underrun!");
+             pa_alsa_dump(PA_LOG_INFO, u->pcm_handle);
+         }
    }

#ifdef DEBUG_TIMING
    pa_log_debug("%0.2f ms left to play; inc threshold = %0.2f ms; dec
threshold = %0.2f ms",
                 (double) pa_bytes_to_usec(left_to_play, &u->sink->sample_spec)
/ PA_USEC_PER_MSEC,
                 (double) pa_bytes_to_usec(u->watermark_inc_threshold,
&u->sink->sample_spec) / PA_USEC_PER_MSEC,
                 (double) pa_bytes_to_usec(u->watermark_dec_threshold,
&u->sink->sample_spec) / PA_USEC_PER_MSEC);
#endif

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