[Bugs] [Bug 1611532] New: ./tests/bugs/snapshot/ bug-1167580-set-proper-uid-and-gid-during-nfs-access.t fails if non-anonymous fds are used in read path

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1611532

            Bug ID: 1611532
           Summary: ./tests/bugs/snapshot/bug-1167580-set-proper-uid-and-g
                    id-during-nfs-access.t fails if non-anonymous fds are
                    used in read path
           Product: GlusterFS
           Version: mainline
         Component: snapshot
          Assignee: bugs at gluster.org
          Reporter: rgowdapp at redhat.com
                CC: bugs at gluster.org



Description of problem:

I was trying to debug regression failures on [1]. Note that patch [1] only
disables usage of anonymous fds on readv. So, I tried the same test disabling
performance.open-behind

[root@ glusterfs]# git diff
diff --git
a/tests/bugs/snapshot/bug-1167580-set-proper-uid-and-gid-during-nfs-access.t
b/tests/bugs/snapshot/bug-1167580-set-proper-uid-and-gid-during-nfs-access.t
index 3776451..cedf96b 100644
---
a/tests/bugs/snapshot/bug-1167580-set-proper-uid-and-gid-during-nfs-access.t
+++
b/tests/bugs/snapshot/bug-1167580-set-proper-uid-and-gid-during-nfs-access.t
@@ -79,6 +79,7 @@ TEST $CLI volume start $V0
 EXPECT_WITHIN $NFS_EXPORT_TIMEOUT "1" is_nfs_export_available
 TEST glusterfs -s $H0 --volfile-id $V0 $M0
 TEST mount_nfs $H0:/$V0 $N0 nolock
+TEST $CLI volume set $V0 performance.open-behind off

 # Create 2 user
 user1=$(get_new_user)


With the above change, I can see consistent failures of the test just like
observed in [1].

TEST 23 (line 154): Y check_if_permitted eeefadc
/mnt/glusterfs/0/.snaps/snap2/file3 cat
su: warning: cannot change directory to /tmp/tmp.eaKBKS0lfM/eeefadc: No such
file or directory
cat: /mnt/glusterfs/0/.snaps/snap2/file3: Permission denied
su: warning: cannot change directory to /tmp/tmp.eaKBKS0lfM/eeefadc: No such
file or directory
cat: /mnt/glusterfs/0/.snaps/snap2/file3: Permission denied
su: warning: cannot change directory to /tmp/tmp.eaKBKS0lfM/eeefadc: No such
file or directory
cat: /mnt/glusterfs/0/.snaps/snap2/file3: Permission denied
su: warning: cannot change directory to /tmp/tmp.eaKBKS0lfM/eeefadc: No such
file or directory
cat: /mnt/glusterfs/0/.snaps/snap2/file3: Permission denied


Test Summary Report
-------------------
./tests/bugs/snapshot/bug-1167580-set-proper-uid-and-gid-during-nfs-access.t
(Wstat: 0 Tests: 46 Failed: 1)
  Failed test:  23


I am assigning this bug to snapshot as the test belongs to snapshot. However,
Rafi has some analysis which points to issue not being in test itself but a
different component in code. Rafi will give reasoning on why he thinks so and
will change the component accordingly.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

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