Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Avoid spinning forever when hardclock() wants to grab the kernel lock

Browse Source 
held by the reaper. From Bill Sommerfeld.
This commit is contained in:
fvdl 2001-03-05 20:38:21 +00:00
parent 9d876c80cc
commit f28b5d3d94
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/kern/kern_exit.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_exit.c,v 1.89 2001/02/26 21:09:57 lukem Exp $ */
/* $NetBSD: kern_exit.c,v 1.90 2001/03/05 20:38:21 fvdl Exp $ */
/*-
* Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
@ -356,6 +356,8 @@ reaper(void *arg)
{
struct proc *p;
KERNEL_PROC_UNLOCK(curproc);
for (;;) {
simple_lock(&deadproc_slock);
p = LIST_FIRST(&deadproc);
@ -369,6 +371,7 @@ reaper(void *arg)
/* Remove us from the deadproc list. */
LIST_REMOVE(p, p_hash);
simple_unlock(&deadproc_slock);
KERNEL_PROC_LOCK(curproc);
/*
* Give machine-dependent code a chance to free any
@ -391,6 +394,7 @@ reaper(void *arg)
/* Wake up the parent so it can get exit status. */
if ((p->p_flag & P_FSTRACE) == 0 && p->p_exitsig != 0)
psignal(p->p_pptr, P_EXITSIG(p));
KERNEL_PROC_UNLOCK(curproc);
wakeup((caddr_t)p->p_pptr);
}
}