[  244.246298] aplay           S c03fc034     0  1542   1505 0x00000100
[  244.246344] [<c03fc034>] (__schedule+0x314/0x670) from [<c03fc954>] (schedule+0x58/0x70)
[  244.246378] [<c03fc954>] (schedule+0x58/0x70) from [<c03fce8c>] (schedule_timeout+0x1f0/0x34c)
[  244.246416] [<c03fce8c>] (schedule_timeout+0x1f0/0x34c) from [<c03fdf84>] (__down_interruptible+0x84/0x100)
[  244.246464] [<c03fdf84>] (__down_interruptible+0x84/0x100) from [<c00571d0>] (down_interruptible+0x90/0xa0)
[  244.246514] [<c00571d0>] (down_interruptible+0x90/0xa0) from [<c02b4c80>] (vcos_event_wait+0x1c/0x50)
[  244.246592] [<c02b4c80>] (vcos_event_wait+0x1c/0x50) from [<bf06ce08>] (bcm2835_audio_close+0x94/0x374 [snd_bcm2835])
[  244.246661] [<bf06ce08>] (bcm2835_audio_close+0x94/0x374 [snd_bcm2835]) from [<bf06b708>] (snd_bcm2835_playback_close+0xac/0xbc [snd_bcm2835])
[  244.246815] [<bf06b708>] (snd_bcm2835_playback_close+0xac/0xbc [snd_bcm2835]) from [<bf04fbc0>] (snd_pcm_release_substream+0x64/0xb8 [snd_pcm])
[  244.246950] [<bf04fbc0>] (snd_pcm_release_substream+0x64/0xb8 [snd_pcm]) from [<bf04fc4c>] (snd_pcm_release+0x38/0x7c [snd_pcm])
[  244.247042] [<bf04fc4c>] (snd_pcm_release+0x38/0x7c [snd_pcm]) from [<c00f7f74>] (fput+0xc0/0x218)
[  244.247081] [<c00f7f74>] (fput+0xc0/0x218) from [<c00f43b4>] (filp_close+0x78/0x90)
[  244.247117] [<c00f43b4>] (filp_close+0x78/0x90) from [<c00f4488>] (sys_close+0xbc/0x118)
[  244.247157] [<c00f4488>] (sys_close+0xbc/0x118) from [<c000e3bc>] (__sys_trace_return+0x0/0x24)