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Fri, 23 May 2025 06:52:29 +0000 Message-ID: <73509a8c-7141-49d7-b6d4-25a271fbad2c@windriver.com> Date: Fri, 23 May 2025 14:52:04 +0800 User-Agent: Mozilla Thunderbird Subject: Re: nfs mount failed with ipv6 addr To: NeilBrown Cc: chuck.lever@oracle.com, stable@vger.kernel.org, linux-kernel@vger.kernel.org References: <> <174795607490.608730.5673295992775861610@noble.neil.brown.name> Content-Language: en-US From: "Yan, Haixiao (CN)" In-Reply-To: <174795607490.608730.5673295992775861610@noble.neil.brown.name> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SI1PR02CA0037.apcprd02.prod.outlook.com (2603:1096:4:1f6::13) To IA1PR11MB8200.namprd11.prod.outlook.com (2603:10b6:208:454::6) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA1PR11MB8200:EE_|DS0PR11MB8761:EE_ 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definitions=main-2505230061 On 5/23/2025 7:21 AM, NeilBrown wrote: > CAUTION: This email comes from a non Wind River email account! > Do not click links or open attachments unless you recognize the sender and know the content is safe. > > On Thu, 22 May 2025, Haixiao Yan wrote: >> On 2025/5/22 07:32, NeilBrown wrote: >>> CAUTION: This email comes from a non Wind River email account! >>> Do not click links or open attachments unless you recognize the sender and know the content is safe. >>> >>> On Thu, 22 May 2025, Yan, Haixiao (CN) wrote: >>>> 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 >>> What does your "nfsserver" script do to try to stop/restart the nfsd? >>> For a very long time the approved way to stop nfsd has been to run >>> "rpc.nfsd 0". My guess is that whatever script you are using still >>> trying to send a signal to nfsd. That no longer works. >>> >>> Unfortunately the various sysv-init scripts for starting/stopping nfsd >>> have never been part of nfs-utils so we were not able to update them. >>> nfs-utils *does* contain systemd unit files for sites which use systemd. >>> >>> If you have a non-systemd way of starting/stopping nfsd, we would be >>> happy to make the relevant scripts part of nfs-utils so that we can >>> ensure they stay up to date. >> Actually, we use service nfsserver restart => >> /etc/init.d/nfsserver => >> >> stop_nfsd(){ >> # WARNING: this kills any process with the executable >> # name 'nfsd'. >> echo -n 'stopping nfsd: ' >> start-stop-daemon --stop --quiet --signal 1 --name nfsd >> if delay_nfsd || { >> echo failed >> echo ' using signal 9: ' >> start-stop-daemon --stop --quiet --signal 9 --name nfsd >> delay_nfsd >> } >> then >> echo done >> else >> echo failed >> fi > The above should all be changed to > echo -n 'stopping nfsd: ' > rpc.nfsd 0 > echo done > > or similar. What distro are you using? > > I can't see how this would affect your problem with IPv6 but it would be > nice if you could confirm that IPv6 still doesn't work even after > changing the above. > What version of nfs-utils are you using? > Are you should that the kernel has IPv6 enabled? Does "ping6 ::1" work? > > NeilBrown > It works as expected. My distro is Yocto and nfs-utils 2.5.3. Thanks, Haixiao >> } >> >> Thanks, >> >> Haixiao >> >>> Thanks, >>> NeilBrown