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Don't turn off the motor on active drives. The motor timeout may

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occur while a command is in progress if the system is overloaded
or was stopped at a debugger breakpoint.
This commit is contained in:
Bruce Evans 1996-02-25 21:01:31 +00:00
parent 53f6b617e1
commit 8335c1b8ae
3 changed files with 36 additions and 3 deletions
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13
sys/dev/fdc/fdc.c
View File

@ -43,7 +43,7 @@
* SUCH DAMAGE.
*
* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
* $Id: fd.c,v 1.78 1996/01/27 02:33:35 bde Exp $
* $Id: fd.c,v 1.79 1996/01/27 04:17:50 bde Exp $
*
*/
@ -843,6 +843,17 @@ fd_turnoff(void *arg1)
fd_p fd = fd_data + fdu;
TRACE1("[fd%d: turnoff]", fdu);
/*
* Don't turn off the motor yet if the drive is active.
* XXX shouldn't even schedule turnoff until drive is inactive
* and nothing is queued on it.
*/
if (fd->fdc->state != DEVIDLE && fd->fdc->fdu == fdu) {
timeout(fd_turnoff, arg1, 4 * hz);
return;
}
s = splbio();
fd->flags &= ~FD_MOTOR;
set_motor(fd->fdc->fdcu, fd->fdsu, TURNOFF);

13
sys/i386/isa/fd.c
View File

@ -43,7 +43,7 @@
* SUCH DAMAGE.
*
* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
* $Id: fd.c,v 1.78 1996/01/27 02:33:35 bde Exp $
* $Id: fd.c,v 1.79 1996/01/27 04:17:50 bde Exp $
*
*/
@ -843,6 +843,17 @@ fd_turnoff(void *arg1)
fd_p fd = fd_data + fdu;
TRACE1("[fd%d: turnoff]", fdu);
/*
* Don't turn off the motor yet if the drive is active.
* XXX shouldn't even schedule turnoff until drive is inactive
* and nothing is queued on it.
*/
if (fd->fdc->state != DEVIDLE && fd->fdc->fdu == fdu) {
timeout(fd_turnoff, arg1, 4 * hz);
return;
}
s = splbio();
fd->flags &= ~FD_MOTOR;
set_motor(fd->fdc->fdcu, fd->fdsu, TURNOFF);

13
sys/isa/fd.c
View File

@ -43,7 +43,7 @@
* SUCH DAMAGE.
*
* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
* $Id: fd.c,v 1.78 1996/01/27 02:33:35 bde Exp $
* $Id: fd.c,v 1.79 1996/01/27 04:17:50 bde Exp $
*
*/
@ -843,6 +843,17 @@ fd_turnoff(void *arg1)
fd_p fd = fd_data + fdu;
TRACE1("[fd%d: turnoff]", fdu);
/*
* Don't turn off the motor yet if the drive is active.
* XXX shouldn't even schedule turnoff until drive is inactive
* and nothing is queued on it.
*/
if (fd->fdc->state != DEVIDLE && fd->fdc->fdu == fdu) {
timeout(fd_turnoff, arg1, 4 * hz);
return;
}
s = splbio();
fd->flags &= ~FD_MOTOR;
set_motor(fd->fdc->fdcu, fd->fdsu, TURNOFF);