LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [RFC][PATCH 0/9] File descriptor hot-unplug support @ 2009-04-11 12:01 Eric W. Biederman 2009-04-11 12:03 ` [RFC][PATCH 1/9] mm: Introduce remap_file_mappings Eric W. Biederman ` (11 more replies) 0 siblings, 12 replies; 99+ messages in thread From: Eric W. Biederman @ 2009-04-11 12:01 UTC (permalink / raw By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. And if you know the name of the command to mount the nfs drive, that would be helpful as well. cryptsetup(8), First of all you must determine disk device with vmkfs tool: ~ # vmkfstools -P /altbootbank. Tomorrow's nightly build of the ssh extension will have the setting remote.SSH.lockfilesInTmp that you can set to do the same thing. Moreover, there are two types of locks. NFSv4 with Kerberos - idmap stops working after ~35 minutes, Parallel MPI_File_open failed on NFSv4 but ran on NFSv3. The main error is in flock () which still says "bad file descriptor" I am using open (), write () etc. Check the code of the locking test used by nfs developers (including myself) to validate client/server behavior independent of protocol version. If it doesn't help, then please change nfsvers=4 to nfsvers=3, it should help. LKML Archive on lore.kernel.org help / color / mirror / Atom feed * [PATCH 3.16 000/294] 3.16.50-rc1 review [PATCH 3.16 000/294] 3.16.50-rc1 review Already on GitHub? Not clear if I have to find another locking solution entirely or what. However it takes an extremely long time to untar the downloaded package For dpkg -l | grep nfs-kernel-server I meant run that on the server, if you have access to it. The others are required by Kubernetes: --PACKAGES: - vim - htop - tmux - kubelet - kubeadm - kubectl - kubernetes-cni - docker.io This means that fcntl (2) and flock () locks do interact with one another over NFS. Can several CRTs be wired in parallel to one oscilloscope circuit? The vars.yml file The vars.yml file just keeps a list of the packages I want to install on each node. Linux man-pages project. we have brought the pool online after scrubbing. Network File System (NFS), a distributed file system protocol developed by Sun Microsystems. I was able to download the docker-image from the customer portal and upload it to my registry. NFS is the common for file sharing on NAS server and Linux / UNIX systems like, HP-UX, Solaris, Mac OS X, and others. syscalls(2), That shouldn't be related to this. Sign in Reset the values manually in the aforementioned config file for STORAGE_DATADIR & STORAGE_DATADIR_UPLOAD. Some specific storages don't support flock () file locking with their NFS implementation so the workaround is to disable flock () on the mount with nolock parameter. Bad exchange descriptor : not able to remove files under zpool Hi , One of my zone went down and when i booted it up i could see the pool in degraded state with some check sum errors . But maybe the lockfiles should just be stored in /var/lock. It worked after installing nightly version of remote SSH extension and checking "Lockfiles In Tmp". I'm using Mac OS High Sierra 10.13, and I'm facing some issues sharing a folder through NFS. Linux debugging, tracing, profiling & perf. Do you have any ideas what is happening? Why do I do that? Only after uninstalling and re-installing the extension can I successfully connect to the server again. I had to move the openwrt tree to a local filesystem to be able to compile. Raw Receiving error "flock: 11: Bad file descriptor" on 7.4. vfat-0.04 file system spanning 1 partitions. You signed in with another tab or window. Currently, only one such flag is defined: FD_CLOEXEC, the close-on-exec flag. Well occasionally send you account related emails. ( flock -x -n 100 || exit 55; sleep 100; ) 100> /tmp/foo.txt Now if you execute the above line in one terminal it will sleep for 100 seconds. All the must configure features in busybox and kernel is turn on. You could change the path in the script to somewhere in /tmp to test. GitHub This repository has been archived by the owner. flockfile(3), rev2022.12.11.43106. Did you run the test script on the remote machine? Attached you'll find some screenshots of informations I collected about the CID chain and logs. ret->set(::open(path.c_str(), flag), path); - int fd=::open(path.c_str(), O_RDONLY | O_CREAT, S_IRWXU | S_IRGRP | S_IROTH); + int fd=::open(path.c_str(), flag | O_CREAT, S_IRWXU | S_IRGRP | S_IROTH). How can you know the sky Rose saw when the Titanic sunk? I was running dpkg -l | grep nfs-kernel-server on the remote machine, not on my local laptop. 220325 17:01:45 41080 ssi_XrdSsiCtaServiceProvider: pid:41080 tid:139722695624832 XrdSsiCtaServiceProvider::Init(): cta::exception::Exception In BackendVFS::lockHelper(): Failed, to flock file /cta-store/ctaObjectStore/.AgentRegister-cta-objectstore-initialize-tpm102.desy.de-14808-20220325-12:05:30-0-0.lock: Bad file descriptor, BackendVFS::ScopedLock * BackendVFS::lockHelper(const std::string& name, int type, uint64_t timeout_us) {. @roblourens One side effect I am seeing of remote.SSH.lockfilesInTmp is that when I start a terminal on the remote machine it does not load my bash settings from my home folder, i.e. I tried bash lockable_script_boilerplate.sh but got nothing in the output. The idea is to avoid the file being written while a process is still reading it. CONFIG_FEATURE_MOUNT_NFS is set to y. Since the application may move on at a later point and open new . They assist in performing various functions related to files. I mean, the "server" in this case is the file server that hosts your NFS directory. by Michael Kerrisk, It should be run on the remote where the NFS drive is. Well you should not get this input/output error. Since Linux 2.6.12, NFS clients support flock () locks by emulating them as fcntl (2) byte-range locks on the entire file. /usr/xxx -access=hostname I ran exportfs -av and /etc/xtab looks fine. maintainer of the fcntl.flock(os.open()) does not work on NFS mount. sudo netstat -an | grep socket *br>. The only hint when I do print("%d",error) is 9 which should be "wrong file descriptor". I didn't know if I should post this here or in a new issue, so apologies if it is in the wrong spot? I would like to clarify. to your account. Since Linux 2.6.12, NFS clients support flock() locks by emulating them as byte-range locks on the entire file. Can someone tell me the output of dpkg -l | grep nfs-common so I can use exactly the same version of the client code? You have answered my question. my_user belongs to admin . The following command will allow you to open a file descriptor in /etc/fstab. It was updated form NFS3 to NFS4. fcntl.flock(open()) does work, or at least does not fail. Open BackendVFS ObjectStore files in R/W mode when obtaining exclusive locks, (How one can reproduce the issue - this is very important). Originally locks were in /var/lock but on some systems users do not have write access to /var/lock. They are generally non-negative values. I think I read that flock should be supported on NFSv4. We have tested the same code on both versions for nfsv3 and it fails with below error on RHEL 7.4 for nfs share. privacy statement. In my case, I don't believe its the nfs host, because I can use the extension to go to a different computer that mounts the same home directory. signal(7), Some shells do not support file descriptors larger than 9. Can you provide more information about. I also reproduced the connection several times and there was no error. I assume that /var/lock is not an NFS drive for you correct? I belive this question would more fit on StackOverflow instead on this site. Well occasionally send you account related emails. IBM's technical support site for all IBM products and services including self help and the ability to engage with IBM support engineers. Making statements based on opinion; back them up with references or personal experience. If the FD_CLOEXEC bit is set, the file descriptor will automatically be closed during a successful execve (2). Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use. So I set up an NFS drive for testing and I am able to use vscode remote on that drive with no issues , Can you run mount and share the line for the NFS drive? lslocks(8), Copyright and license for this manual page. You can open a new issue with some details. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Or your local laptop. The only difference, is the file system where the fileNames are located. We'll discuss it below. Any suggestion regarding this problem would be really helpful. Does illicit payments qualify as transaction costs? And maybe dpkg -l | grep nfs-kernel-server if you have access to the server. Thanks/ LIKITH.S Share 356 views Related Questions Related Tags Dual EU/US Citizen entered EU on US Passport. The command is missing. I found it updates to 0.44.2 after I connecting to the server. Since Linux 2.6.37, the kernel supports a compatibility mode that allows flock() locks . What happens if the permanent enchanted by Song of the Dryads gets copied? nfs(5), File descriptor obtained using os.open() cannot be used in fcntl.flock() call when the file is on NFS mount. Please support me on Patreon: . Oh, I see. What the exact command should I use? Fix File reading failed-VLC could not open the file (Bad file descriptor)-file reading failed vlc. LIKE &. Thanks/ LIKITH.S Share 367 views Related Questions Related Tags that I teach, look here. File system label (if any): Mode: private. You cooperate by requesting the lock before doing the operation, and then by releasing the lock after you're done. Connect and share knowledge within a single location that is structured and easy to search. The file is created in the specified NFS "path" . NAME | SYNOPSIS | DESCRIPTION | RETURNVALUE | ERRORS | CONFORMINGTO | NOTES | SEEALSO | COLOPHON, Pages that refer to this page: All jobs that try to create a project lock in this folder will fail with: awx/main/tasks.py", line 1865, in acquire_lock fcntl.flock(self.lock_fd, fcntl.LOCK_EX | fcntl.LOCK_NB) OSError: [Errno 9] Bad file descriptor. Thanks! Server Fault is a question and answer site for system and network administrators. I hope someone can help. Sorry, should have double-checked before posting. ii nfs-common 1:1.2.8-6ubuntu1.2 amd64 NFS support files common to client and server. i get a lot of "[Errno 9] Bad file descriptor". getrlimit(2), It works with a Centos 7.6 server using nfs version 4.1 with the same home directory. Could not establish SSH connection to remote using Remote - SSH, Have to kill the vscode-server process for each SSH-connect [RHEL/CentOS 6.10] NFSv4. Therefore you need to take decision on the return code of flock as below. I was able to connect to the remote server. http://git.linux-nfs.org/?p=steved/cthon04.git;a=blob;f=lock/tlock.c;h=8c837a87976d17c58a25c9bd08d9f935e4521402;hb=HEAD#l835. flock does advisory locking, which is a cooperative locking scheme. Hi I am trying to install the docker-image of V2.0.0p9 on my docker-swarm setup with NFS for volumes. Is it correct to say "The glue on the back of the sticker is dying down so I can not stick the sticker to the wall"? Would that work? FLOCK(2) Linux Programmer's Manual FLOCK(2), Linux 2021-03-22 FLOCK(2). Subsequent flock() calls on an already locked file will convert an existing lock to the new lock mode. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. system msg for write_line failure: Bad file descriptor I am wondering if anyone has any experience on how to solve this issue. Even the OS (SLE15.2) is the same with kernel 5.3.18, and using strerror(errno) produces a seg fault on NFS4. @pmgurman How did you prevent the extension keeping updating itself? Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! It fails with the following message: showmount: Cannot retrieve info from host: 192.168.16.51: RPC failed:: RPC: Unable to send; errno = Bad file descriptor I have done the following config on the server: /etc/exports /var/nfs 192.168.x.x/255.255.255. Could not establish SSH connection: flock: 99: Input/output error. My /etc/exports looks like this. BSD locks (flock) The simplest and most common file locks are provided by flock (2). 16 comments droundy commented on Oct 26, 2016 added a commit that referenced this issue added a commit to engine-flutter-autoroll/flutter that referenced this issue on Oct 17, 2018 mentioned this issue on Oct 17, 2018 It works for the first time. this? *PATCH 000/104] virtiofs daemon [all] @ 2019-12-12 16:37 Dr. David Alan Gilbert (git) 2019-12-12 16:37 ` [PATCH 001/104] virtiofsd: Pull in upstream headers Dr. David Alan Gilbert (git) ` (106 more replies) 0 siblings, 107 replies; 307+ messages in thread From: Dr. David Alan Gilbert (git) @ 2019-12-12 16:37 UTC (permalink / raw) To: qemu-devel, stefanha, vgoyal From: "Dr. David Alan Gilbert . You should alter it to report the errno reason for the failure as it might indicate a more fundamental issue with your locking -- such as trying to open a file you dont have permission to or doesn't exist. On macOS, the output-sync feature tries to lock the output file, but the file locking APIs don't work on a pipe. Apple: Issues sharing folder through NFS - RPC: Unable to send; errno = Bad file descriptor or Program not registeredHelpful? Try: flock -e myfile.lock ls The number is the file descriptor of the usage alternativ: ( flock -e 200 ls ) 200>myfile.lock See the man page. HTML rendering created 2021-08-27 Use lockf instead of flock. Turning the sco machine into an nfs server instead of a client. And here is a test script is you can try running against your NFS $HOME. The Linux Programming Interface, NFS details In Linux kernels up to 2.6.11, flock () does not lock files over NFS (i.e., the scope of locks was limited to the local system). The mount command shows me the following about the mount, (rw,sec=sys,addr=x.x.x.x,clientaddr=0.0.0.0). Destination disk format: VMFS thick Cloning disk 'Exchange Server 1-000001.vmdk'. @arglog I was just about to say the same. Hi @roblourens With over 10 pre-installed distros to choose from, the worry-free installation life is here! This means that fcntl(2) and flock() locks do interact with one another over NFS. Mount NFS folder on /var/lib/awx/projects. analysis. Help us identify new roles for community members. touch resp.txt ( flock -e 200 curl 'someurl' -H 'someHeader' > resp.txt ) 200< resp.txt to place the lock on the file opened as read only. Maybe this is the reason that I was not able to open a folder after the connection was established. Which could be reason. When I try to set lock on the file using the fcntl it fails with Permission denied. A file descriptor is a unique number used to access a data resource. Yes, I ran the test script on the remote machine. Disclaimer: Python is not my domain of expertise, I'm just a newbie hacking. The latter is simply a way to manage the systems calls from shell scripts or the command line. Re: NFS stale file descriptor and close () The OS will definitely close and release the file descriptors when exit () is called, however, this application must continue running after close () has been called file from a disconnected mountpoint. You could try running that script, and replace the, What the exact command should I use? I would like to use a semaphore to avoid modifications on this file until I am done with it. I tried, Install it (e.g. It also means that in order to place an exclusive lock, the file must be opened for writing. @roblourens Forgive my ignorance, but where would I find the nightly? Previous message (by thread): [OpenWrt-Devel] Fwd: OpenWRT Build Process broken on recent Debian NFS Next message (by thread): [OpenWrt-Devel] Fwd: OpenWRT Build Process broken on recent Debian NFS . Sorry I should have bumped the version number to prevent that. *br> Sumake the installation by typing umount -l /etc/fstab. Why do quantum objects slow down when volume increases? This means that you will be able to override the lock if you don't cooperate. Therefore, exit () is never called. vim, htop, and tmux are my favorite packages to install on each machine I need to manage. The nfs server's ip is 192.168.1.6 and busybox version is 1.1.3. But no change: /proc/fs/nfs/exports remains empty and the client reports the same . This program was working perfectly until stop doing so. It is now read-only. UUID: 0xxxxxe. Common errors we get with file descriptor limits: a) Fatal Error Unable to create lock file: Bad file descriptor (9) b) Too many open files (24) c) Unable to lock file I) Check default limit: $ ulimit -a default will be 1024. check global limit: $ cat /proc/sys/fs/file-max I use Windows Services for Unix 3 to activate the client. https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-ssh-nightly, Make sure you uninstall the stable version before using the nightly version. how to do the experiment using the code in the Gist? This issue is particularly known for DataDomain storage. Our file locking is based on https://gist.github.com/przemoc/571091 if you care to do any experimentation yourself. The functionality is provided by an additional (external to nfs protocol) lock manager. You could set up a situatiion where one instance of the script acquires a lock and sleeps for a bit then a second instance of the script tries to acquire the lock and fails nicely with no weird error messages. You're trying to compile in an NFS mounted directory, right? The best answers are voted up and rise to the top, Not the answer you're looking for? Finding the original ODE using a solution. I have a .bash_profile file that is normally read. privacy statement. Resend (apologies, tried to send it to -users by mistake initially). flock(1), (ro,no_subtree_check) /etc/hosts.allow portmap: 192.168.x.x/255.255.255. In Python, file descriptors are integers (positive) that identify the kernel's open files kept in a table of files. I'm happy to help out. What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Can really only tell you that the lock failed or succeeded but not why. fileName is supposed to be a valid existing file, I am reading a fileName and making a copy, editing some few parts. File descriptor obtained using open() cannot be used in flock() call when the file is on NFS mount. To solve this problem, here are the steps to increase this limit. This works for me. . author of Using this VSIX extension I successfully connected to the remote machine and opened project folders. If my answer solved your question, please mark it as accepted answer Ready to optimize your JavaScript with Rust? Did neanderthals need vitamin C from the diet? The same code works on other flavors of unix (solaris and HPUX) . The same code works on other flavors of unix (solaris and HPUX) . The file is created in the specified NFS "path" . because I had started working with an integer file descriptor instead of a file pointer. Same OS, same nfs-common version, same mount details. A process may hold only one type of lock (shared or exclusive) on a file. I get the following from dpkg -l | grep nfs-common Hi all, I am observing an interesting issue with the OpenWRT build process when But few files are showing this error Bad exchange descriptor Please let me know how to remove these files 3. Where does the idea of selling dragon parts come from? You should print the errno (as suggested by others) to see why the lock request had failed. Well I can add a setting to put the lock in /tmp. But there is no output. If found to be negative, that indicates error or a "no value" condition. Locks . The nfs-client is a windows machine running NT Server. Could @dawnmy and @saeedizadi also provide the information please? Under our NFS4-Installation I always get into this condition, Edit: The flock command works on file descriptors, not files. It was hard to test though because it kept updating itself before I could test it and I kept forgetting that there were hanging processes on the remote from previous attempts. fork(2), Features: not specified in POSIX, but widely available on various Unix systems One downside is that this would not be safe when the home folder is mapped to two different machines, and vscode connects to those two machines simultaneously. Next if you run the code on another terminal it will immediately return to prompt. Summary File descriptor obtained using open() cannot be used in flock() call when the file is on NFS mount. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. I wonder whether it works because I am technically sharing to the same machine, maybe it takes some shortcut when it knows the drive is really local. I was connecting to a remote machine using SSH-Remote. On another hand, NFS v4 has locking as a part of the spec. There is no output for dpkg -l | grep nfs-kernel-server. I think the application's expectation is that it fail rather than returning a decimal-string-only service entity. Sorry, I have to find time to set up an NFS drive and do some experimentation. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Linux/UNIX system programming training courses Attached is a test script which shows the difference is run on both RHEL versions. An attempt to lock the file using one of these file descriptors may be denied by a lock that the calling process has already placed via another file descriptor. @roblourens nightly version for me also working, thanks. Gradle captures the output of ndk-build (probably using a pipe), and I see the errors with either Android Studio or running ./gradlew at the CLI, but only if I configure gradle to pass -jN . I guess it is updating itself on restart of VSCode, and updating from the internet and not the modified package version. Clone: 36% done.Failed to clone disk : Bad file descriptor (589833). cvs commit: apache-2./apache-nspr/os/win32 modules.c util_win32.c. Bad file descriptor. dgaudet 22 Sep 1998 18:06:03 -0000 It's the operation that is protected by the lock, not (necessarily) the lock file itself. fcntl(2), Uninstall the ssh extension Download this, change extension .vsix remote-ssh-.44.1.zip A BSD lock and an Open file description lock is associated with a file object, while a POSIX record lock is associated with an [i-node, pid] pair. Solution Use the following command to mount NFS: lockf(3), This problem started happening with NDK r21. This is more reliable on some filesystems, Ansible version: ansible-2.8.0-1.el7.ans.noarch. I don't know why this code is not working under NFS4, using NFS3 works perfectly. Locking of CTA object store files fails on NFS mount. Thanks for contributing an answer to Server Fault! Any suggestion regarding this problem would be really helpful. thank you. Environment If I disconnect from the server and re-connect again, I got the same error. https://github.com/ansible/awx/blob/4.0.0/awx/main/tasks.py#L1853. Here were my steps: Firstly edited the config.php in /var/www/fog/commons and reset the tftp password there and in the web gui interface. By clicking Sign up for GitHub, you agree to our terms of service and chown(2), Mine looks like. [OpenWrt-Devel] Fwd: OpenWRT Build Process broken on recent Debian NFS Anton Ivanov anton.ivanov at cambridgegreys.com Sun Nov 12 02:41:39 EST 2017. SHARE COMMENTS I get the f. @roblourens Thanks. Can confirm that above script causes the original error on the 'exlock_now || exit 1' line (and severs my ssh connection). data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAAAXNSR0IArs4c6QAAAnpJREFUeF7t17Fpw1AARdFv7WJN4EVcawrPJZeeR3u4kiGQkCYJaXxBHLUSPHT/AaHTvu . Sign up for a free GitHub account to open an issue and contact its maintainers and the community. With advanced shells (bash, ksh93, zsh), the following can be done: Already on GitHub? Can add that I am seeing this error on an Ubuntu 14.04.5 LTS server, which is mounting the home directory using nfs version 4.0. NFS flock functionality appears to have changed between RHEL 7.3 and 7.4. Instead, one could use fcntl (2) byte-range locking, which does work over NFS, given a sufficiently recent version of Linux and a server which supports locking. dbopen(3), You could try running that script, and replace the /var/lock/ path with a path that is inside your user directory on the NFS drive I'm using NFS4. . And kernel's config CONFIG_NFS_FS, Have a question about this project? log: 2021-09-08T09:04:27.477115169Z ### PREPARE POSTFIX (Hostname: 19d7bab954cc, Relay host . I was able to mount with version 4.0 and it still works. To learn more, see our tips on writing great answers. Below is my namelist: &nhyd_model config_init_case = 7 config_start_time='2019-8-16_00:00:00' / &dimensions config_nvertlevels=41 config_nsoillevels=4 config_nfglevels=38 config_nfgsoillevels=4 / &data_sources This probably is not the "remote" machine that you are connecting to, that is the NFS client. Now I am trying on 14.04 with 1:1.2.8-6ubuntu1.2 and it still seems fine. Any workaround? Use the following command to open a network socket file descriptor. @roblourens Sign in The configuration: Built-in firewall is disabled and there is no third party firewall installed. I executed "exportfs -ra" on the host. I'm suffering this issue so much. Japanese girlfriend visiting me in Canada - questions at border control? Is this an at-all realistic configuration for a DHC-2 Beaver? with Creative Commons CC-BY-SA We can probably live with that. The manual page flock(2) had been out of date for a long time, but has since been updated to say (emphasis mine):. I know, while I am doing this, an external process can update the fileName. You may also want to include errno.h in the list of includes too to make sure you reach for the correct variable. You signed in with another tab or window. with "Install from VSIX" command), Try again, this will keep the lock in /tmp, let me know whether it works. One is the byte range locks, the second is the access share. Because I need to map this file on disk using mmap (), which requires a file descriptor. It only takes a minute to sign up. If the FD_CLOEXEC bit is not set, the file descriptor will remain open across an execve (2) . When I try to set lock on the file using the fcntl it fails with Permission denied. To get locking to work with nfs v4 and v3 you need to use byte range locking which is available as fcntl or lockf functions. . 2 comments patrikbeno commented on May 20, 2019 AWX version: 4.0.0 AWX install method: kubernetes Ansible version: ansible-2.8.-1.el7.ans.noarch 1 awxbot added state:needs_triage type:bug labels on May 20, 2019 The text was updated successfully, but these errors were encountered: Hi @roblourens , yes I'm using the NFS file system. tmpfiles.d(5), Can I use user-based kerberos authentication with NFSv4? to your account. Should I exit and re-enter EU with my EU passport or is it ok? 127.0.0.1:/datadrive/shared on /mnt/shared type nfs4 (rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=127.0.0.1,local_lock=none,addr=127.0.0.1). What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? NFS v3 doesn't have a locking support on the protocol level. @pmgurman Were you able to open folders on the remote machine and successfully re-connect to the remote for multiple times? Thanks! You can disable extensions.autoUpdate temporarily to prevent it from overwriting the vsix. Do you know which NFS you are using? Closing File Descriptors. I don't have the access to the server hosting the NFS directory. fsck(8), Note. For details of in-depth Asking for help, clarification, or responding to other answers. Yes. *RFC PATCH 0/7] crypto: x86 - fix RCU stalls @ 2022-10-06 22:31 Robert Elliott 2022-10-06 22:31 ` [RFC PATCH 1/7] rcu: correct CONFIG_EXT_RCU_CPU_STALL_TIMEOUT descriptions Robert Elliott ` (7 more replies) 0 siblings, 8 replies; 125+ messages in thread From: Robert Elliott @ 2022-10-06 22:31 UTC (permalink / raw) To: herbert, davem . However it looks like the code is written to handle the case where all 100 iterations fail mount:nfsmount failed: Bad file descriptor xiao.liang 15 years ago Hi, I have encoutered a problem when mount a nfs filesystem. This is an fragment of the code I am using. macOS (OS X) can be setup as an NFS client to access shared files on the network. I got a pop-up window showing Could not establish connection to "xxxx.yyyy.zzz". proc(5), Linuxbrew / brew Public archive Notifications Fork 247 Star 2.6k Code Issues Pull requests Actions Wiki Security Insights Can't do anything -- "bad file descriptor" in lock.sh #314 Closed Capacity 261853184 (63929 file blocks * 4096), 78376960 (19135 blocks) avail. Unable to send; errno = Bad file descriptor $ syslog Oct 17 21:56:28 Estebans-MacBook-Pro-2 rpc.lockd[215] : can't contact statd, 100024 RPC: Timed out . UNIX Linux Unix POSIX [ ] I/O POSIX UNIXLinux The text was updated successfully, but these errors were encountered: "Bad file descriptor" when trying to lock file on NFS mount. On the client I'd doing: Code: # mount -t nfs 10.100.100.12:/3wm storage mount: 10.100.100.12:/3wm failed, reason given by server: Permission denied mount: mounting 10.100.100.12:/3wm on storage failed: Bad file descriptor. Job fails because a file lock cannot be created on NFS folder. I've tried different settings in the /etc/exports file. @roblourens By clicking Sign up for GitHub, you agree to our terms of service and Version number to prevent it from overwriting the VSIX, sec=sys, addr=x.x.x.x, clientaddr=0.0.0.0 ),... 356 views Related Questions Related Tags that I was running dpkg -l grep! 2 ) free GitHub account to open a file pointer 1 ' line ( and severs my ssh:. This, an external process can update the fileName it still seems fine should be. Successfully connected to the server external to NFS protocol ) lock manager collected about the CID and... Is it ok and contact its maintainers and the client reports the same on. Failed or succeeded but not why that I teach, look here the VSIX under,... Exchange Inc ; user contributions licensed under CC BY-SA the protocol level 192.168.1.6 flock bad file descriptor nfs busybox is! [ errno 9 ] Bad file descriptor will automatically be closed during a successful execve ( 2 ) and (....Bash_Profile file that is normally read, while I am doing this an... Informations I collected about the mount, ( rw, sec=sys, addr=x.x.x.x, clientaddr=0.0.0.0 ) when increases! Do quantum objects slow down when volume increases flock ) the simplest most! Assist in performing various functions Related to files me also working, thanks it doesn & # ;. Command should I exit and re-enter EU with my EU Passport or is it?... Update the fileName get a lot of & quot flock bad file descriptor nfs [ errno 9 ] Bad file.. Properties should my fictional HEAT rounds have to punch through heavy armor and?! Would like to use a semaphore to avoid the file is on folder! 356 views Related Questions Related Tags that I was not able to connect to the new lock mode functions to... Need to manage the systems calls from shell scripts or the command to mount with 4.0... Error & quot ; flock: 11: Bad file descriptor will remain open across an execve ( 2.... Of expertise, I ran the test script on the remote machine not. Think I read that flock should be overlooked some experimentation the tftp password there and in the specified &... Pmgurman how did you prevent the extension keeping updating itself performing various functions Related to.! `` server '' in this case is the file is on NFS mount another,. Set up an NFS drive for you correct a remote machine using SSH-Remote: already on?. Part of the fcntl.flock ( open ( ) locks already on GitHub turning the sco machine into an NFS,. Ansible version: ansible-2.8.0-1.el7.ans.noarch mmap ( ) ) does not work on NFS mount hb=HEAD #.. Temporarily to prevent it from overwriting the VSIX answer you 're looking for sco machine into an NFS server #! I need to manage I 'm just a newbie hacking locking is on... Used by NFS developers ( including myself ) to validate client/server behavior independent of protocol.! On some systems users do not support file descriptors larger than 9 guess! Fictional HEAT rounds have to find another locking solution entirely or what also reproduced the connection times... Copy, editing some few parts ip is 192.168.1.6 and busybox version is 1.1.3 a machine! Lock if you care to do the same thing descriptor will automatically be during! The setting remote.SSH.lockfilesInTmp that you can open a file lock can not be used in flock ( call! X27 ; t cooperate include errno.h in the aforementioned config file for STORAGE_DATADIR & amp ; STORAGE_DATADIR_UPLOAD ~35 minutes Parallel. Protocol level location that is structured and easy to search it updates to 0.44.2 I. N'T have a.bash_profile file that is normally read subscribe to this RSS feed copy... Lot of & quot ; flock: 11: Bad file descriptor ( 589833.! Increase this limit log: 2021-09-08T09:04:27.477115169Z # # # PREPARE POSTFIX ( Hostname: 19d7bab954cc, host! Be run on both versions for NFSv3 and it still works ( Bad file descriptor instead flock. Os X ) can be done: already on GitHub drive and do some experimentation put the lock failed succeeded! Domain of expertise, I have to punch through heavy armor and ERA and flock ( can! The Dryads gets copied Forgive my ignorance, but where would I find the nightly version 4.0 and fails. Is set, the file using the nightly version for me also working, thanks I,. It to -users by mistake initially ) got a pop-up window showing not! Bash, ksh93, zsh ), Copyright and license for this manual page solved your question, mark... Be setup as an NFS mounted directory, right installation by typing umount -l /etc/fstab that the lock had! Over 10 pre-installed distros to choose from, the file server that hosts your NFS directory, is! Time to set lock on the return code of flock as below users do not support file descriptors, the... Parallel MPI_File_open failed on NFSv4 by others ) to see why the request... On this file until I am wondering if anyone has any experience how! In /var/lock would like to use a semaphore to avoid modifications on this file disk! Others ) to validate client/server behavior independent of protocol version I use user-based Kerberos authentication NFSv4... ): mode: private from the customer portal and upload it to my registry test script is can! Download the docker-image of V2.0.0p9 on my local laptop doesn & # x27 ; ll discuss below... Several CRTs be wired in Parallel to one oscilloscope circuit way to manage the systems calls from shell scripts the... Should help, therefore imperfection should be run on both RHEL versions tell you that the failed... Determine disk device with vmkfs tool: ~ # vmkfstools -P /altbootbank but not why if... Already locked file will convert an existing lock to the server hosting the NFS drive, that should be. P=Steved/Cthon04.Git ; a=blob ; f=lock/tlock.c ; h=8c837a87976d17c58a25c9bd08d9f935e4521402 ; hb=HEAD # l835 code works on file descriptors larger than.! Someone tell me the output of dpkg -l | grep nfs-kernel-server this case is the byte range locks the! Should be run on both versions for NFSv3 and it still works want in less than five minutes shells... What the exact command should I exit and re-enter EU with my EU Passport or is it ok also! Was able to connect to the remote machine using SSH-Remote does work or. System where the fileNames are located HPUX ) nfs-kernel-server if you know the sky Rose saw when the must... Arglog I was able to compile in an NFS drive is Linux 2.6.37, the file ( Bad file in... Should I use user-based Kerberos authentication with NFSv4 same thing VSCode, and tmux my... ~35 minutes, Parallel MPI_File_open failed on NFSv4: 2021-09-08T09:04:27.477115169Z # # # PREPARE POSTFIX (:. To be able to mount NFS: lockf ( 3 ), distributed... To have changed between flock bad file descriptor nfs 7.3 and 7.4 maybe dpkg -l | grep.... Doing so does advisory locking, which is a unique number used to access a resource! Titanic sunk sorry I should have bumped the version number to prevent that collected about the command! -File reading failed vlc s config CONFIG_NFS_FS, have a locking support on the network be! And rise to the remote where the NFS directory packages I want to on... Lock can not be created on NFS folder Centos 7.6 server using NFS 4.1. Same error the Dryads gets copied 589833 ) US Passport decision on the remote machine a flock bad file descriptor nfs cloud desktop the... Before using the nightly not open the file server that hosts your NFS directory I try to lock... Do not support file descriptors, not on my local laptop terms of service and chown ( 2.... Set up an NFS drive is you prevent the extension can I use user-based Kerberos authentication with?. Song of the client reports the same code works on other flavors of unix ( solaris and HPUX.. Means that you want in less than five minutes with shells the configuration: Built-in firewall is and. Tags Dual EU/US Citizen entered EU on US Passport the installation by typing -l... Will convert an existing lock to the server hosting the NFS drive and do some experimentation is ok! My ignorance, but where would I find the nightly version for me working! Responding to other answers and not the answer you 're looking for and do some.... Version 4.0 and it fails with below error on the return code of Dryads! I can use exactly the same error have to find time to set lock on the descriptor! @ roblourens thanks any suggestion regarding flock bad file descriptor nfs problem, here are the steps to this... By flock ( 2 ), Linux 2021-03-22 flock ( 1 ) flock bad file descriptor nfs the file being written a... On https: //marketplace.visualstudio.com/items? itemName=ms-vscode-remote.remote-ssh-nightly, Make sure you uninstall the stable version before using the?... Be negative, that would be really helpful convert an existing lock to top... The connection was established of remote ssh extension and checking `` lockfiles in Tmp '' increase this limit with!, it should be supported on NFSv4 but ran on NFSv3 packages I want to install on machine. Such flag is defined: FD_CLOEXEC, the file server that hosts NFS... About the mount, ( ro, no_subtree_check ) /etc/hosts.allow portmap: 192.168.x.x/255.255.255 it fail rather than returning a service..., or at least does not fail which requires a file pointer sco machine into an mounted. Xxxx.Yyyy.Zzz '' you can disable extensions.autoUpdate temporarily to prevent that not support file descriptors than., Ansible version: ansible-2.8.0-1.el7.ans.noarch openwrt tree to a remote machine I connecting to the top, not my! Editing some few parts are the steps to increase this limit by flock ( ) ) does,.

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