diff options
| author | Mark Johnston <markj@FreeBSD.org> | 2022-03-01 16:52:39 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2022-03-01 17:40:35 +0000 |
| commit | 83958173eb7d3f9d402e6dc81e66d179a808dd63 (patch) | |
| tree | 9c5384e94f8623a7bb29d544f8135b610c38b207 | |
| parent | 12fb39ec3e6bc529feff3ba2862c6a4a30bd54eb (diff) | |
| download | src-83958173eb7d3f9d402e6dc81e66d179a808dd63.tar.gz src-83958173eb7d3f9d402e6dc81e66d179a808dd63.zip | |
fasttrap: Assert that fasttrap_fork() successfully unmaps scratch space
No functional change intended.
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
| -rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c b/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c index 4771a67a9f09..d96d3f44182e 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c +++ b/sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c @@ -588,7 +588,7 @@ fasttrap_fork(proc_t *p, proc_t *cp) fasttrap_proc_t *fprc = NULL; #endif pid_t ppid = p->p_pid; - int i; + int error, i; ASSERT(curproc == p); #ifdef illumos @@ -678,9 +678,10 @@ fasttrap_fork(proc_t *p, proc_t *cp) if (fprc != NULL) { mutex_enter(&fprc->ftpc_mtx); LIST_FOREACH(scrblk, &fprc->ftpc_scrblks, ftsb_next) { - vm_map_remove(&cp->p_vmspace->vm_map, + error = vm_map_remove(&cp->p_vmspace->vm_map, scrblk->ftsb_addr, scrblk->ftsb_addr + FASTTRAP_SCRBLOCK_SIZE); + ASSERT(error == KERN_SUCCESS); } mutex_exit(&fprc->ftpc_mtx); } |