diff options
Diffstat (limited to 'sys/kern/kern_exit.c')
| -rw-r--r-- | sys/kern/kern_exit.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index ce9a18c..0b2c2e8 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -147,7 +147,7 @@ exit1(td, rv) } /* - * XXXKSE: MUST abort all other threads before proceeding past here. + * XXXXKSE: MUST abort all other threads before proceeding past here. */ PROC_LOCK(p); if (p->p_flag & P_KSES) { @@ -156,6 +156,17 @@ exit1(td, rv) * if so, act apropriatly, (exit or suspend); */ thread_suspend_check(0); + /* + * Here is a trick.. + * We need to free up our KSE to process other threads + * so that we can safely set the UNBOUND flag + * (whether or not we have a mailbox) as we are NEVER + * going to return to the user. + * The flag will not be set yet if we are exiting + * because of a signal, pagefault, or similar + * (or even an exit(2) from the UTS). + */ + td->td_flags |= TDF_UNBOUND; /* * Kill off the other threads. This requires @@ -181,6 +192,7 @@ exit1(td, rv) * Turn off threading support. */ p->p_flag &= ~P_KSES; + td->td_flags &= ~TDF_UNBOUND; thread_single_end(); /* Don't need this any more. */ } /* @@ -225,10 +237,8 @@ exit1(td, rv) */ TAILQ_FOREACH(ep, &exit_list, next) (*ep->function)(p); - - PROC_LOCK(p); + stopprofclock(p); - PROC_UNLOCK(p); MALLOC(p->p_ru, struct rusage *, sizeof(struct rusage), M_ZOMBIE, 0); |
