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15.20.8769.021; Fri, 23 May 2025 09:01:04 +0000 Message-ID: Date: Fri, 23 May 2025 17:00:40 +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: <> <73509a8c-7141-49d7-b6d4-25a271fbad2c@windriver.com> <174798616079.608730.9700383239346135852@noble.neil.brown.name> Content-Language: en-US From: "Yan, Haixiao (CN)" In-Reply-To: <174798616079.608730.9700383239346135852@noble.neil.brown.name> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: TY2PR02CA0001.apcprd02.prod.outlook.com (2603:1096:404:56::13) To CH0PR11MB8189.namprd11.prod.outlook.com (2603:10b6:610:18d::13) 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: CH0PR11MB8189:EE_|PH8PR11MB8106:EE_ 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definitions=main-2505230079 On 5/23/2025 3:42 PM, 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 Fri, 23 May 2025, Yan, Haixiao (CN) wrote: >> 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. I've sent a patch to openembedded to change the nfsserver > script. > > Can you make the change to nfsserver and let me know if it fixes your > problem? What's the version of your nfs-utils? The patch failed to apply. $ git am '[PATCH OE-core] nfs-utils don'\''t use signals to shut down nfs server. - '\''NeilBrown '\'' (neil@brown.name) - 2025-05-23 1541.eml' Applying: nfs-utils: don't use signals to shut down nfs server. error: patch failed: meta/recipes-connectivity/nfs-utils/nfs-utils/nfsserver:89 error: meta/recipes-connectivity/nfs-utils/nfs-utils/nfsserver: patch does not apply Patch failed at 0001 nfs-utils: don't use signals to shut down nfs server. hint: Use 'git am --show-current-patch=diff' to see the failed patch When you have resolved this problem, run "git am --continue". If you prefer to skip this patch, run "git am --skip" instead. To restore the original branch and stop patching, run "git am --abort". Thanks, Haixiao > > Thanks, > NeilBrown