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-rw-r--r--sys/miscfs/procfs/procfs_subr.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/sys/miscfs/procfs/procfs_subr.c b/sys/miscfs/procfs/procfs_subr.c
index 12dcf76..e13e425 100644
--- a/sys/miscfs/procfs/procfs_subr.c
+++ b/sys/miscfs/procfs/procfs_subr.c
@@ -36,7 +36,7 @@
*
* @(#)procfs_subr.c 8.6 (Berkeley) 5/14/95
*
- * $Id: procfs_subr.c,v 1.18 1997/12/06 04:11:12 sef Exp $
+ * $Id: procfs_subr.c,v 1.19 1997/12/08 01:06:22 sef Exp $
*/
#include <sys/param.h>
@@ -359,7 +359,15 @@ procfs_exit(struct proc *p)
pid_t pid = p->p_pid;
for (pfs = pfshead; pfs ; pfs = pfs->pfs_next) {
- if (pfs->pfs_pid == pid)
- vgone(PFSTOV(pfs));
+ struct vnode *vp = PFSTOV(pfs);
+ /*
+ * XXX - this is probably over-paranoid here --
+ * for some reason, occasionally the v_tag is
+ * not VT_PROCFS; this results in a panic. I'm
+ * not sure *why* that is happening.
+ */
+ if (pfs->pfs_pid == pid && vp->v_usecount &&
+ vp->v_tag == VT_PROCFS)
+ vgone(vp);
}
}
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