Having just updated my amd64 system to 7.99.59 (sources updated on on 2017-02-14 at 21:48:07 UTC), I tried to

        # echo "T60L1CP1CP1C" > /dev/speaker

and got a panic in kern_descrip.c at line 814. Here's the backtrace (manually copied)

        vpanic + 0x140
        uaudio_get_cluster
        closef + 0x110
        fd_free + 0xcb
        exit1 + 0x11d
        sys_exit + 0x3d
        syscall + 0x1d2

(The uaudio_get_cluster call is probably bogus but I can't figure out why it's there!)

Any clue?


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