Author: kib
Date: Mon Oct 10 12:27:40 2011
New Revision: 226202
URL: http://svn.freebsd.org/changeset/base/226202
Log:
MFC r225942:
Assert that exiting process does not return to usermode.
Approved by: re (bz)
Modified:
stable/9/sys/kern/subr_trap.c
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/amd64/include/xen/ (props changed)
stable/9/sys/boot/ (props changed)
stable/9/sys/boot/i386/efi/ (props changed)
stable/9/sys/boot/ia64/efi/ (props changed)
stable/9/sys/boot/ia64/ski/ (props changed)
stable/9/sys/boot/powerpc/boot1.chrp/ (props changed)
stable/9/sys/boot/powerpc/ofw/ (props changed)
stable/9/sys/cddl/contrib/opensolaris/ (props changed)
stable/9/sys/conf/ (props changed)
stable/9/sys/contrib/dev/acpica/ (props changed)
stable/9/sys/contrib/octeon-sdk/ (props changed)
stable/9/sys/contrib/pf/ (props changed)
stable/9/sys/contrib/x86emu/ (props changed)
Modified: stable/9/sys/kern/subr_trap.c
==============================================================================
--- stable/9/sys/kern/subr_trap.c Mon Oct 10 12:16:45 2011
(r226201)
+++ stable/9/sys/kern/subr_trap.c Mon Oct 10 12:27:40 2011
(r226202)
@@ -99,6 +99,8 @@ userret(struct thread *td, struct trapfr
CTR3(KTR_SYSC, "userret: thread %p (pid %d, %s)", td, p->p_pid,
td->td_name);
+ KASSERT((p->p_flag & P_WEXIT) == 0,
+ ("Exiting process returns to usermode"));
#if 0
#ifdef DIAGNOSTIC
/* Check that we called signotify() enough. */
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