[src/trunk]: src/tests/fs/vfs Do the famous renamerace test using directories...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7b70593a59fc
branches:  trunk
changeset: 756396:7b70593a59fc
user:      pooka <pooka%NetBSD.org@localhost>
date:      Fri Jul 16 11:33:45 2010 +0000

description:
Do the famous renamerace test using directories.  Uh oh, bad idea.
PR coming soon.

diffstat:

 tests/fs/vfs/t_renamerace.c |  50 ++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 49 insertions(+), 1 deletions(-)

diffs (77 lines):

diff -r 84b83641d431 -r 7b70593a59fc tests/fs/vfs/t_renamerace.c
--- a/tests/fs/vfs/t_renamerace.c       Fri Jul 16 10:50:55 2010 +0000
+++ b/tests/fs/vfs/t_renamerace.c       Fri Jul 16 11:33:45 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_renamerace.c,v 1.3 2010/07/16 10:50:55 pooka Exp $   */
+/*     $NetBSD: t_renamerace.c,v 1.4 2010/07/16 11:33:45 pooka Exp $   */
 
 /*
  * Modified for rump and atf from a program supplied
@@ -49,6 +49,24 @@
 }
 
 static void *
+w1_dirs(void *arg)
+{
+
+       rump_pub_lwp_alloc_and_switch(0, 10);
+       rump_sys_chdir(arg);
+
+       while (!quittingtime) {
+               if (rump_sys_mkdir("rename.test1", 0777) == -1)
+                       atf_tc_fail_errno("mkdir");
+               rump_sys_rmdir("rename.test1");
+       }
+
+       rump_sys_chdir("/");
+
+       return NULL;
+}
+
+static void *
 w2(void *arg)
 {
 
@@ -89,12 +107,42 @@
                abort();
 }
 
+static void
+renamerace_dirs(const atf_tc_t *tc, const char *mp)
+{
+       pthread_t pt1, pt2;
+
+       /* XXX: msdosfs also sometimes hangs */
+       if (FSTYPE_FFS(tc) || FSTYPE_EXT2FS(tc) || FSTYPE_LFS(tc) ||
+           FSTYPE_MSDOS(tc))
+               atf_tc_expect_signal(-1, "PR notyet");
+
+       pthread_create(&pt1, NULL, w1_dirs, __UNCONST(mp));
+       pthread_create(&pt2, NULL, w2, __UNCONST(mp));
+
+       sleep(5);
+       quittingtime = 1;
+
+       pthread_join(pt1, NULL);
+       pthread_join(pt2, NULL);
+
+       /*
+        * Doesn't always trigger when run on a slow backend
+        * (i.e. not on tmpfs/mfs).  So do the usual kludge.
+        */
+       if (FSTYPE_FFS(tc) || FSTYPE_EXT2FS(tc) || FSTYPE_LFS(tc) ||
+           FSTYPE_MSDOS(tc))
+               abort();
+}
+
 ATF_TC_FSAPPLY(renamerace, "rename(2) race with file unlinked mid-operation");
+ATF_TC_FSAPPLY(renamerace_dirs, "rename(2) race with directories");
 
 ATF_TP_ADD_TCS(tp)
 {
 
        ATF_TP_FSAPPLY(renamerace); /* PR kern/41128 */
+       ATF_TP_FSAPPLY(renamerace_dirs);
 
        return atf_no_error();
 }