diff -uNr linux-2.4.18.S18.scsimany5/drivers/scsi/sd.c linux-2.4.18.S18.scsimany/drivers/scsi/sd.c
--- linux-2.4.18.S18.scsimany5/drivers/scsi/sd.c	Wed Jul 17 15:16:35 2002
+++ linux-2.4.18.S18.scsimany/drivers/scsi/sd.c	Fri Jul 26 11:46:22 2002
@@ -870,7 +870,7 @@
 		return -1;
 	}
 
-	buffer = (unsigned char *) scsi_malloc(512);
+	buffer = (unsigned char *) scsi_malloc(256);
 	if (!buffer) {
 		printk(KERN_WARNING "(sd_init_onedisk:) Memory allocation failure.\n");
 		scsi_release_request(SRpnt);
@@ -1114,7 +1114,7 @@
 		cmd[0] = MODE_SENSE;
 		cmd[1] = cdb1;
 		cmd[2] = 0x3f;	/* Get all pages */
-		cmd[4] = 255;   /* Ask for 255 bytes, even tho we want just the first 8 */
+		cmd[4] = 252;   /* Ask for 252 bytes, even tho we want just the first 8 */
 		SRpnt->sr_cmd_len = 0;
 		SRpnt->sr_sense_buffer[0] = 0;
 		SRpnt->sr_sense_buffer[2] = 0;
@@ -1122,7 +1122,7 @@
 		/* same code as READCAPA !! */
 		SRpnt->sr_data_direction = SCSI_DATA_READ;
 		scsi_wait_req(SRpnt, (void *) cmd, (void *) buffer,
-			      512, SD_TIMEOUT, MAX_RETRIES);
+			      252, SD_TIMEOUT, MAX_RETRIES);
 
 		the_result = SRpnt->sr_result;
 
@@ -1143,7 +1143,7 @@
 	scsi_release_request(SRpnt);
 	SRpnt = NULL;
 
-	scsi_free(buffer, 512);
+	scsi_free(buffer, 256);
 	return 0;
 }