The current ata driver on pc98 has a problem. I think that the
following patch solves the problem. Please review it. This change
must be in RELENG_5_0 branch.
Index: sys/dev/ata/ata-disk.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/ata/ata-disk.c,v
retrieving revision 1.137
diff -u -r1.137 ata-disk.c
--- sys/dev/ata/ata-disk.c 3 Dec 2002 20:19:37 -0000 1.137
+++ sys/dev/ata/ata-disk.c 8 Dec 2002 08:50:01 -0000
@@ -123,6 +123,14 @@
adp->heads = atadev->param->heads;
adp->sectors = atadev->param->sectors;
adp->total_secs = atadev->param->cylinders * adp->heads * adp->sectors;
+#ifdef PC98
+ if (adp->total_secs < 17 * 8 * 65536) {
+ /* convert PC98 geometry */
+ adp->sectors = 17;
+ adp->heads = 8;
+ atadev->param->cylinders = adp->total_secs / (17 * 8);
+ }
+#endif
adp->max_iosize = 256 * DEV_BSIZE;
bioq_init(&adp->queue);
Index: sys/geom/geom_pc98.c
===================================================================
RCS file: /home/ncvs/src/sys/geom/geom_pc98.c,v
retrieving revision 1.20
diff -u -r1.20 geom_pc98.c
--- sys/geom/geom_pc98.c 3 Dec 2002 20:18:35 -0000 1.20
+++ sys/geom/geom_pc98.c 8 Dec 2002 04:47:43 -0000
@@ -190,10 +190,6 @@
sectorsize = cp->provider->sectorsize;
if (sectorsize < 512)
break;
- if (cp->provider->mediasize / sectorsize < 17 * 8 * 65536) {
- fwsectors = 17;
- fwheads = 8;
- }
gsp->frontstuff = sectorsize * fwsectors;
spercyl = (off_t)fwsectors * fwheads * sectorsize;
buf = g_read_data(cp, 0,
---
TAKAHASHI Yoshihiro <[EMAIL PROTECTED]>
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