$OpenBSD: patch-src_snd_oss_c,v 1.3 2008/06/28 02:50:59 jakemsr Exp $
--- src/snd_oss.c.orig	Sun Mar 14 18:25:43 2004
+++ src/snd_oss.c	Thu May 29 23:49:13 2008
@@ -239,6 +239,15 @@ qboolean SNDDMA_Init(struct sndinfo * s) {
 		return 0;
 	}
 
+    int sel;
+    /* make sure we're using a power of two blocksize */
+    sel = 0x7fff000b;	/* as many 2048 byte blocks as possible */
+    if (ioctl(audio_fd, SNDCTL_DSP_SETFRAGMENT, &sel)==-1)
+    {   
+        perror("SETFRAGMENT");
+		si->Com_Printf("SNDDMA_Init: SETFRAGMENT ioctl failed.\n");
+    }
+
     if (ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info)==-1)
     {   
         perror("GETOSPACE");
@@ -358,7 +367,7 @@ qboolean SNDDMA_Init(struct sndinfo * s) {
 
 	if (!si->dma->buffer) {
 	    si->dma->buffer = (unsigned char *) mmap(NULL, info.fragstotal * info.fragsize,
-#if defined(__FreeBSD__) && (__FreeBSD_version < 500000)
+#if defined(__FreeBSD__) && (__FreeBSD_version < 500000) || defined (__OpenBSD__)
 						PROT_READ|PROT_WRITE,
 #else
 						PROT_WRITE,