diff options
| -rw-r--r-- | sys/i386/isa/wd.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/i386/isa/wd.c b/sys/i386/isa/wd.c index 4ba9a0f..d1a657d 100644 --- a/sys/i386/isa/wd.c +++ b/sys/i386/isa/wd.c @@ -37,7 +37,7 @@ static int wdtest = 0; * SUCH DAMAGE. * * from: @(#)wd.c 7.2 (Berkeley) 5/9/91 - * $Id: wd.c,v 1.32 1994/02/22 22:13:37 rgrimes Exp $ + * $Id: wd.c,v 1.33 1994/02/23 11:14:26 rgrimes Exp $ */ /* TODO: @@ -761,6 +761,7 @@ wdopen(dev_t dev, int flags, int fmt, struct proc *p) struct partition *pp; char *msg; struct disklabel save_label; + unsigned long save_heads; lunit = wdunit(dev); if (lunit >= NWD) @@ -816,6 +817,7 @@ wdopen(dev_t dev, int flags, int fmt, struct proc *p) * to the driver by resetting the state machine. */ save_label = du->dk_dd; + save_heads = du->dk_dd.d_ntracks; #define WDSTRATEGY ((int (*)(struct buf *)) wdstrategy) /* XXX */ msg = readdisklabel(makewddev(major(dev), lunit, WDRAW), (d_strategy_t *) WDSTRATEGY, &du->dk_dd, @@ -832,6 +834,11 @@ wdopen(dev_t dev, int flags, int fmt, struct proc *p) int dospart; unsigned long newsize, offset, size; + if (du->dk_dd.d_ntracks > 16) { + printf("wd%d: can't handle %lu heads from partition table (controller value (%lu) restored)\n", + du->dk_lunit, du->dk_dd.d_ntracks, save_heads); + du->dk_dd.d_ntracks = save_heads; + } du->dk_flags |= DKFL_BSDLABEL; du->dk_flags &= ~DKFL_WRITEPROT; if (du->dk_dd.d_flags & D_BADSECT) |
