From:   Chuck Lever III <chuck.lever@oracle.com>
To:     Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: git regression failures with v6.2-rc NFS client
Thread-Topic: git regression failures with v6.2-rc NFS client
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Date:   Tue, 31 Jan 2023 21:15:40 +0000
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Hi-

I upgraded my test client's kernel to v6.2-rc5 and now I get
failures during the git regression suite on all NFS versions.
I bisected to:

85aa8ddc3818 ("NFS: Trigger the "ls -l" readdir heuristic sooner")

The failure looks like:

not ok 6 - git am --skip succeeds despite D/F conflict
#      =20
#               test_when_finished "git -C df_plus_edit_edit clean -f" &&
#               test_when_finished "git -C df_plus_edit_edit reset --hard" =
&&
#               (
#                       cd df_plus_edit_edit &&
#      =20
#                       git checkout f-edit^0 &&
#                       git format-patch -1 d-edit &&
#                       test_must_fail git am -3 0001*.patch &&
#      =20
#                       git am --skip &&
#                       test_path_is_missing .git/rebase-apply &&
#                       git ls-files -u >conflicts &&
#                       test_must_be_empty conflicts
#               )
#      =20
# failed 1 among 6 test(s)
1..6
make[2]: *** [Makefile:60: t1015-read-index-unmerged.sh] Error 1
make[2]: *** Waiting for unfinished jobs....

The regression suite is run like this:

RESULTS=3D some random directory under /tmp
RELEASE=3D"git-2.37.1"

rm -f ${RELEASE}.tar.gz
curl --no-progress-meter -O https://mirrors.edge.kernel.org/pub/software/sc=
m/git/${RELEASE}.tar.gz
/usr/bin/time tar zxf ${RELEASE}.tar.gz >> ${RESULTS}/git 2>&1

cd ${RELEASE}
make clean >> ${RESULTS}/git 2>&1
/usr/bin/time make -j${THREADS} all doc >> ${RESULTS}/git 2>&1

/usr/bin/time make -j${THREADS} test >> ${RESULTS}/git 2>&1

On this client, THREADS=3D12. A single-thread run doesn't seem to
trigger a problem. So unfortunately the specific data I have is
going to be noisy.

--
Chuck Lever