Bug introduced in !600.
``` 00dc:trace:alsa:AudioClient_GetService (00A53680)->({cd63314f-3fba-4a1b-812c-ef96358728e7}, 0022FCB0) 00dc:trace:alsa:AudioClient_AddRef (00A53680) Refcount now 2 00dc:trace:alsa:AudioClock_GetFrequency (00A53680)->(0022FCC8) render.c:1056: Clock Frequency 384000 00dc:trace:alsa:AudioClock_GetPosition (00A53680)->(00000000, 00000000) 00dc:trace:alsa:AudioClock_GetPosition (00A53680)->(0022FCD0, 0022FCD8) 00dc:trace:alsa:alsa_get_position frames written: 0, held: 0, state: 0x2, position: 0 render.c:1071: Test failed: GetPosition failed: 00423930 render.c:1072: Test failed: GetPosition returned non-zero pos before being started render.c:1073: Test failed: GetPosition returned zero pcpos 00dc:trace:alsa:AudioClient_GetService (00A53680)->({f294acfc-3146-4483-a7bf-addca7c260e2}, 0022FCB4) 00dc:trace:alsa:AudioClient_AddRef (00A53680) Refcount now 3 00dc:trace:alsa:AudioRenderClient_GetBuffer (00A53680)->(24001, 0022FCC0) ```
And the test hangs.