Assertion '!e->dead' failed at pulse/mainloop.c:254, function mainloop_defer_enable(). Aborting.

[Alfred M. Szmidt]

While trying to list a tape, I got this strange segfault:

Assertion '!e->dead' failed at pulse/mainloop.c:254, function mainloop_defer_enable(). Aborting.

Thread 4 "SDLAudioP1" received signal SIGABRT, Aborted.
[Switching to Thread 0x7ffff2966700 (LWP 29033)]
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt full
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
        set = {__val = {234975239, 140737336089633, 0, 13897781614037987840, 4, 93825024178528, 0, 140737336097593, 93825024270272, 93825024178528, 93825024258656, 140737336170286, 93825024270272, 140737336098616, 93824992331216, 93825024178528}}
        pid = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
#1  0x00007ffff7b4c535 in __GI_abort () at abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {13897781614037987840, 0, 36, 93825027829216, 93825027807144, 93825027806688, 140737350027145, 0, 8, 93825027794400, 8, 140737263328400, 140737336553409, 1, 93825027794400, 140737263328400}}, sa_flags = -140592660, sa_restorer = 0x7ffff7a07237}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007ffff79eb9f5 in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#3  0x00007ffff6f597f1 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
No symbol table info available.
#4  0x00007ffff6f59bb9 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
No symbol table info available.
#5  0x00007ffff6f5a40a in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
No symbol table info available.
#6  0x00007ffff79eccb8 in pa_mainloop_dispatch () from /lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#7  0x00007ffff79ecf8c in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
No symbol table info available.
#8  0x00007ffff7f34cc7 in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
No symbol table info available.
#9  0x00007ffff7e9195b in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
No symbol table info available.
#10 0x00007ffff7edae8c in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
No symbol table info available.
#11 0x00007ffff7f4e119 in ?? () from /lib/x86_64-linux-gnu/libSDL2-2.0.so.0
No symbol table info available.
#12 0x00007ffff6faafa3 in start_thread (arg=<optimized out>) at pthread_create.c:486
        ret = <optimized out>
        pd = <optimized out>
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737263331072, 2301452079668870344, 140737488347614, 140737488347615, 140737263331072, 93825027788256, -2301476480502252344, -2301467449764266808}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
#13 0x00007ffff7c2380f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.
(gdb)