diff options
| -rw-r--r-- | proc/pgrp.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/proc/pgrp.c b/proc/pgrp.c index d4ea9ee4..a828e179 100644 --- a/proc/pgrp.c +++ b/proc/pgrp.c @@ -341,8 +341,14 @@ S_proc_setpgrp (struct proc *callerp, if (p->p_pgrp != pg) { + /* If we have to create a new pgrp, we have to do this before + leaving the current one. p->p_pgrp is deallocated if p is + the last process in that group. Likewise, if p->p_pgrp was + the last group in p->p_pgrp->pg_session, the session is + deallocated. */ + struct pgrp *new = pg ? pg : new_pgrp (pgid, p->p_pgrp->pg_session); leave_pgrp (p); - p->p_pgrp = pg ? pg : new_pgrp (pgid, p->p_pgrp->pg_session); + p->p_pgrp = new; join_pgrp (p); } else |