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ts=682ddf20 cx=c_pps a=OemXRkCljtmPz/OzEC+nkg==:117 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=wKuvFiaSGQ0qltdbU6+NXLB8nM8=:19 a=Ol13hO9ccFRV9qXi2t6ftBPywas=:19 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=yPCof4ZbAAAA:8 a=4x1uw_1Qg-QOYtC87tQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-21_04,2025-05-20_03,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 impostorscore=0 suspectscore=0 malwarescore=0 clxscore=1011 phishscore=0 priorityscore=1501 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.21.0-2505160000 definitions=main-2505210138 On linux-5.10.y, my testcase run failed: root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# mount -t nfs [::1]:/mnt/nfs_root /mnt/v6 -o nfsvers=3 mount.nfs: requested NFS version or transport protocol is not supported The first bad commit is: commit 7229200f68662660bb4d55f19247eaf3c79a4217 Author: Chuck Lever Date:   Mon Jun 3 10:35:02 2024 -0400   nfsd: don't allow nfsd threads to be signalled.   [ Upstream commit 3903902401451b1cd9d797a8c79769eb26ac7fe5 ] Here is the test log: root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# dd if=/dev/zero of=/tmp/nfs.img bs=1M count=100 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 0.0386658 s, 2.7 GB/s root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# mkfs /tmp/nfs.img mke2fs 1.46.1 (9-Feb-2021) Discarding device blocks: 1024/102400 done Creating filesystem with 102400 1k blocks and 25688 inodes Filesystem UUID: 77e3bc56-46bb-4e5c-9619-d9a0c0999958 Superblock backups stored on blocks: 8193, 24577, 40961, 57345, 73729 Allocating group tables: 0/13 done Writing inode tables: 0/13 done Writing superblocks and filesystem accounting information: 0/13 done root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# mount /tmp/nfs.img /mnt root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# mkdir /mnt/nfs_root root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# touch /etc/exports root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# echo '/mnt/nfs_root *(insecure,rw,async,no_root_squash)' >> /etc/exports root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# /opt/wr-test/bin/svcwp.sh nfsserver restart stopping mountd: done stopping nfsd: ..........failed using signal 9: ..........failed exportfs: /etc/exports [1]: Neither 'subtree_check' or 'no_subtree_check' specified for export "*:/mnt/nfs_root". Assuming default behaviour ('no_subtree_check'). NOTE: this default has changed since nfs-utils version 1.0.x starting 8 nfsd kernel threads: done starting mountd: done exportfs: /etc/exports [1]: Neither 'subtree_check' or 'no_subtree_check' specified for export "*:/mnt/nfs_root". Assuming default behaviour ('no_subtree_check'). NOTE: this default has changed since nfs-utils version 1.0.x root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# echo hello > /mnt/nfs_root/hello.txt root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# mkdir /mnt/v6 root@intel-x86-64:/opt/wr-test/testcases/userspace/nfs-utils_v6# mount -t nfs [::1]:/mnt/nfs_root /mnt/v6 -o nfsvers=3 mount.nfs: requested NFS version or transport protocol is not supported Thanks, Haixiao