Author: marcus (doc,ports committer)
Date: Tue Dec 23 20:43:42 2008
New Revision: 186458
URL: http://svn.freebsd.org/changeset/base/186458
Log:
Do not KASSERT when vp->v_dd is NULL. Only directories which have had ".."
looked up would have v_dd set to a non-NULL value. This fixes a panic
seen when running installworld on a diskless system with a separate /usr
file system.
Submitted by: cracauer
Approved by: kib
Modified:
head/sys/kern/vfs_cache.c
Modified: head/sys/kern/vfs_cache.c
==============================================================================
--- head/sys/kern/vfs_cache.c Tue Dec 23 20:25:04 2008 (r186457)
+++ head/sys/kern/vfs_cache.c Tue Dec 23 20:43:42 2008 (r186458)
@@ -936,7 +936,7 @@ vn_fullpath1(struct thread *td, struct v
}
ncp = TAILQ_FIRST(&vp->v_cache_dst);
if (ncp != NULL) {
- MPASS(ncp->nc_dvp == vp->v_dd);
+ MPASS(vp->v_dd == NULL || ncp->nc_dvp == vp->v_dd);
buflen -= ncp->nc_nlen - 1;
for (i = ncp->nc_nlen - 1; i >= 0 && bp != buf; i--)
*--bp = ncp->nc_name[i];