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PR #kern/572:

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>Synopsis:       Booting w/scsi tape in drive causes first use to fail

Booting with a tape in a SCSI tape drive will cause the first
use of the tape to fail with the following message:

st0: bad request, must be between 0 and 0.

Submitted by:	mpp@legarto.minn.net (Mike Pritchard)
This commit is contained in:
Joerg Wunsch 1995-07-09 08:14:24 +00:00
parent 6f64074e6b
commit 6aeb10f748
1 changed files with 8 additions and 6 deletions
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14
sys/scsi/st.c
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@ -12,7 +12,7 @@
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* $Id: st.c,v 1.35 1995/05/03 18:09:19 dufault Exp $
* $Id: st.c,v 1.36 1995/05/30 08:13:54 rgrimes Exp $
*/
/*
@ -278,6 +278,7 @@ struct scsi_device st_switch =
#define ST_BLANK_READ 0x800 /* BLANK CHECK encountered already */
#define ST_2FM_AT_EOD 0x1000 /* write 2 file marks at EOD */
#define ST_MOUNTED 0x2000 /* Device is presently mounted */
#define ST_SENSE_READ 0x4000 /* mode sense read from drive */
#define ST_PER_ACTION (ST_AT_FILEMARK | ST_EIO_PENDING | ST_BLANK_READ)
#define ST_PER_MOUNT (ST_INFO_VALID | ST_BLOCK_SET | ST_WRITTEN | \
@ -724,7 +725,7 @@ st_mount_tape(dev, flags)
scsi_prevent(sc_link, PR_PREVENT, 0); /* who cares if it fails? */
st->flags &= ~ST_NEW_MOUNT;
st->flags |= ST_MOUNTED;
sc_link->flags |= SDEV_MEDIA_LOADED; /* move earlier? */
sc_link->flags |= SDEV_MEDIA_LOADED;
return 0;
}
@ -1017,7 +1018,7 @@ ststart(unit, flags)
st->buf_queue = bp->b_actf;
/*
* if the device has been unmounted byt the user
* if the device has been unmounted by the user
* then throw away all requests until done
*/
if ((!(st->flags & ST_MOUNTED))
@ -1427,6 +1428,7 @@ st_mode_sense(unit, flags, page, pagelen, pagecode)
struct scsi_link *sc_link = SCSI_LINK(&st_switch, unit);
struct scsi_data *st = sc_link->sd;
st->flags &= ~ST_SENSE_READ;
/*
* Check if we need to use a default page..
*/
@ -1481,7 +1483,7 @@ st_mode_sense(unit, flags, page, pagelen, pagecode)
if (page) {
bcopy(&dat.page, page, pagelen);
}
sc_link->flags |= SDEV_MEDIA_LOADED;
st->flags |= ST_SENSE_READ;
return 0;
}
@ -1938,7 +1940,7 @@ st_interpret_sense(xs)
* information.
*/
if ((st->quirks & ST_Q_SNS_HLP) &&
!(sc_link->flags & SDEV_MEDIA_LOADED)) {
!(st->flags & ST_SENSE_READ)) {
st->blksiz -= 512;
}
}
@ -1994,7 +1996,7 @@ st_interpret_sense(xs)
* MODE SENSE information.
*/
if ((st->quirks & ST_Q_SNS_HLP) &&
!(sc_link->flags & SDEV_MEDIA_LOADED)) {
!(st->flags & ST_SENSE_READ)) {
/* still starting */
st->blksiz -= 512;
} else if (!(st->flags & (ST_2FM_AT_EOD | ST_BLANK_READ))) {