diff options
author | bde <bde@FreeBSD.org> | 1996-02-25 21:01:31 +0000 |
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committer | bde <bde@FreeBSD.org> | 1996-02-25 21:01:31 +0000 |
commit | 708b97e2443413721bbdece97f7245907339589b (patch) | |
tree | a25c38b827b9dfc30c10139e990b43ebc25699cb /sys/isa | |
parent | 12ee82f222d3cfcdbd5479310131a9a024693c5f (diff) | |
download | FreeBSD-src-708b97e2443413721bbdece97f7245907339589b.zip FreeBSD-src-708b97e2443413721bbdece97f7245907339589b.tar.gz |
Don't turn off the motor on active drives. The motor timeout may
occur while a command is in progress if the system is overloaded
or was stopped at a debugger breakpoint.
Diffstat (limited to 'sys/isa')
-rw-r--r-- | sys/isa/fd.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sys/isa/fd.c b/sys/isa/fd.c index f755ad5..f62c6ba 100644 --- a/sys/isa/fd.c +++ b/sys/isa/fd.c @@ -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); |