Hello,

I got this when "amaroK" started playing:

Badness in __mutex_unlock_slowpath at kernel/mutex.c:214
 [<c03538e8>] __mutex_unlock_slowpath+0x56/0x1a2
 [<c0302f08>] snd_pcm_oss_write+0x0/0x1e0
 [<c0302f3c>] snd_pcm_oss_write+0x34/0x1e0
 [<c0302f08>] snd_pcm_oss_write+0x0/0x1e0
 [<c0148221>] vfs_write+0x83/0x122
 [<c0148a36>] sys_write+0x3c/0x63
 [<c0102ba3>] sysenter_past_esp+0x54/0x75

(2.6.15-mm2)

The sound was garbled with amaroK, but fine with xmms.
Note: I'm underclocking by a couple of percent.

HTH,
Andrew Wade