diff options
| author | Bruce Evans <bde@FreeBSD.org> | 1995-12-15 01:01:00 +0000 |
|---|---|---|
| committer | Bruce Evans <bde@FreeBSD.org> | 1995-12-15 01:01:00 +0000 |
| commit | a59db23b945a6a0a89d7e55b2a0abaafc6e7a60a (patch) | |
| tree | 220376c1424a1b42046354d40bea4137f39557d9 /sys/kern/tty.c | |
| parent | 0dfe10a65ca5d76b1710101adb5203dfe754393b (diff) | |
Notes
Diffstat (limited to 'sys/kern/tty.c')
| -rw-r--r-- | sys/kern/tty.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/sys/kern/tty.c b/sys/kern/tty.c index d54f5f7a8b27..6c1e8f48f75a 100644 --- a/sys/kern/tty.c +++ b/sys/kern/tty.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. * * @(#)tty.c 8.8 (Berkeley) 1/21/94 - * $Id: tty.c,v 1.74 1995/12/14 08:31:56 phk Exp $ + * $Id: tty.c,v 1.75 1995/12/14 22:32:39 bde Exp $ */ /*- @@ -1166,7 +1166,20 @@ again: CLR(tp->t_state, TS_LOCAL); ttwakeup(tp); if (ISSET(tp->t_state, TS_TBLOCK)) { + if (rw & FWRITE) + FLUSHQ(&tp->t_outq); ttyunblock(tp); + + /* + * Don't let leave any state that might clobber the + * next line discipline (although we should do more + * to send the START char). Not clearing the state + * may have caused the "putc to a clist with no + * reserved cblocks" panic/printf. + */ + CLR(tp->t_state, TS_TBLOCK); + +#if 0 /* forget it, sleeping isn't always safe and we don't know when it is */ if (ISSET(tp->t_iflag, IXOFF)) { /* * XXX wait a bit in the hope that the stop @@ -1186,6 +1199,7 @@ again: CLR(tp->t_state, TS_TBLOCK); goto again; } +#endif } } if (rw & FWRITE) { |