Not clear if I have to find another locking solution entirely or what. with Creative Commons CC-BY-SA Therefore you need to take decision on the return code of flock as below. Mine looks like. Connect and share knowledge within a single location that is structured and easy to search. i get a lot of "[Errno 9] Bad file descriptor". I have a .bash_profile file that is normally read. Finding the original ODE using a solution. Linux man-pages project. checked the values matching in the web gui as well. Use lockf instead of flock. 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 Sign up for a free GitHub account to open an issue and contact its maintainers and the community. my_user belongs to admin . Linux/UNIX system programming training courses vfat-0.04 file system spanning 1 partitions. The command is missing. The others are required by Kubernetes: --PACKAGES: - vim - htop - tmux - kubelet - kubeadm - kubectl - kubernetes-cni - docker.io Moreover, there are two types of locks. Does illicit payments qualify as transaction costs? Why do I do that? 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. I'm using Mac OS High Sierra 10.13, and I'm facing some issues sharing a folder through NFS. I'm happy to help out. @roblourens Thanks. this? You could try running that script, and replace the, What the exact command should I use? https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-ssh-nightly, Make sure you uninstall the stable version before using the nightly version. The functionality is provided by an additional (external to nfs protocol) lock manager. to your account. Our file locking is based on https://gist.github.com/przemoc/571091 if you care to do any experimentation yourself. Well you should not get this input/output error. @pmgurman How did you prevent the extension keeping updating itself? The best answers are voted up and rise to the top, Not the answer you're looking for? 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 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. *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 . They are generally non-negative values. Under our NFS4-Installation I always get into this condition, Edit: lslocks(8), Copyright and license for this manual page. Have a question about this project? 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 . flock does advisory locking, which is a cooperative locking scheme. Tomorrow's nightly build of the ssh extension will have the setting remote.SSH.lockfilesInTmp that you can set to do the same thing. The problem is that it can't use flock on its lock files. I guess it is updating itself on restart of VSCode, and updating from the internet and not the modified package version. 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. Attached is a test script which shows the difference is run on both RHEL versions. Check our new training course. File descriptor obtained using os.open() cannot be used in fcntl.flock() call when the file is on NFS mount. I know, while I am doing this, an external process can update the fileName. I hope someone can help. https://github.com/ansible/awx/blob/4.0.0/awx/main/tasks.py#L1853. If the FD_CLOEXEC bit is not set, the file descriptor will remain open across an execve (2) . And maybe dpkg -l | grep nfs-kernel-server if you have access to the server. It works with a Centos 7.6 server using nfs version 4.1 with the same home directory. Any suggestion regarding this problem would be really helpful. 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). by Michael Kerrisk, Any workaround? CONFIG_FEATURE_MOUNT_NFS is set to y. I was able to download the docker-image from the customer portal and upload it to my registry. 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. When I try to set lock on the file using the fcntl it fails with Permission denied. File system label (if any): Mode: private. ( 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. analysis. fcntl.flock(os.open()) does not work on NFS mount. I also reproduced the connection several times and there was no error. You signed in with another tab or window. I'm suffering this issue so much. All the must configure features in busybox and kernel is turn on. cvs commit: apache-2./apache-nspr/os/win32 modules.c util_win32.c. The Linux Programming Interface, Originally locks were in /var/lock but on some systems users do not have write access to /var/lock. I would like to debug, but our sys-admin is not able to. nfs(5), Since Linux 2.6.12, NFS clients support flock() locks by emulating them as byte-range locks on the entire file. rev2022.12.11.43106. But there is no output. Thanks for contributing an answer to Server Fault! Features: not specified in POSIX, but widely available on various Unix systems Attached you'll find some screenshots of informations I collected about the CID chain and logs. Use the following command to open a network socket file descriptor. This means that fcntl(2) and flock() locks do interact with one another over NFS. I get the following from dpkg -l | grep nfs-common Closing File Descriptors. Thanks/ LIKITH.S Share 367 views Related Questions Related Tags I was running dpkg -l | grep nfs-kernel-server on the remote machine, not on my local laptop. What is this fallacy: Perfection is impossible, therefore imperfection should be overlooked. Can you provide more information about. You may also want to include errno.h in the list of includes too to make sure you reach for the correct variable. I assume that /var/lock is not an NFS drive for you correct? Could not establish SSH connection: flock: 99: Input/output error. It was updated form NFS3 to NFS4. On another hand, NFS v4 has locking as a part of the spec. 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 SHARE COMMENTS I get the f. We'll discuss it below. Have a question about this project? Hi @roblourens Please support me on Patreon: . Apple: Issues sharing folder through NFS - RPC: Unable to send; errno = Bad file descriptor or Program not registeredHelpful? NFSv4 with Kerberos - idmap stops working after ~35 minutes, Parallel MPI_File_open failed on NFSv4 but ran on NFSv3. Check the code of the locking test used by nfs developers (including myself) to validate client/server behavior independent of protocol version. Could @dawnmy and @saeedizadi also provide the information please? This means that fcntl (2) and flock () locks do interact with one another over NFS. You can see this by using strace, that's how I discovered it. Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! The mount command shows me the following about the mount, (rw,sec=sys,addr=x.x.x.x,clientaddr=0.0.0.0). Bad file descriptor. fileName is supposed to be a valid existing file, I am reading a fileName and making a copy, editing some few parts. 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. @arglog I was just about to say the same. Subsequent flock() calls on an already locked file will convert an existing lock to the new lock mode. Note. *br> /br> in the sudo mount -t dir. You signed in with another tab or window. You will probably get the same error, I just want to verify that the simplest possible case produces the same result. Can really only tell you that the lock failed or succeeded but not why. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. system msg for write_line failure: Bad file descriptor I am wondering if anyone has any experience on how to solve this issue. Sign in The vars.yml file The vars.yml file just keeps a list of the packages I want to install on each node. thank you. Mount NFS folder on /var/lib/awx/projects. 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. Japanese girlfriend visiting me in Canada - questions at border control? This problem started happening with NDK r21. This is an fragment of the code I am using. 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 . If it doesn't help, then please change nfsvers=4 to nfsvers=3, it should help. I got a pop-up window showing Could not establish connection to "xxxx.yyyy.zzz". tmpfiles.d(5), The configuration: Built-in firewall is disabled and there is no third party firewall installed. Already on GitHub? Why do quantum objects slow down when volume increases? The main error is in flock () which still says "bad file descriptor" I am using open (), write () etc. We can probably live with that. This means that you will be able to override the lock if you don't cooperate. I tried bash lockable_script_boilerplate.sh but got nothing in the output. how to do the experiment using the code in the Gist? 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 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. What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? If I disconnect from the server and re-connect again, I got the same error. I found it updates to 0.44.2 after I connecting to the server. A process may hold only one type of lock (shared or exclusive) on a file. It's the operation that is protected by the lock, not (necessarily) the lock file itself. Maybe this is the reason that I was not able to open a folder after the connection was established. It only takes a minute to sign up. But maybe the lockfiles should just be stored in /var/lock. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. to your account. *br> Sumake the installation by typing umount -l /etc/fstab. @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 use Windows Services for Unix 3 to activate the client. http://git.linux-nfs.org/?p=steved/cthon04.git;a=blob;f=lock/tlock.c;h=8c837a87976d17c58a25c9bd08d9f935e4521402;hb=HEAD#l835. File descriptor obtained using open() cannot be used in flock() call when the file is on NFS mount. @pmgurman Were you able to open folders on the remote machine and successfully re-connect to the remote for multiple times? This issue is particularly known for DataDomain storage. Already on GitHub? With over 10 pre-installed distros to choose from, the worry-free installation life is here! The manual page flock(2) had been out of date for a long time, but has since been updated to say (emphasis mine):. chown(2), The nfs server's ip is 192.168.1.6 and busybox version is 1.1.3. That shouldn't be related to this. proc(5), Since the application may move on at a later point and open new . I was connecting to a remote machine using SSH-Remote. 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). Currently, only one such flag is defined: FD_CLOEXEC, the close-on-exec flag. BSD locks (flock) The simplest and most common file locks are provided by flock (2). 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. fsck(8), My /etc/exports looks like this. 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. Can I use user-based kerberos authentication with NFSv4? Would like to stay longer than 90 days. fcntl.flock(open()) does work, or at least does not fail. with "Install from VSIX" command), Try again, this will keep the lock in /tmp, let me know whether it works. The only hint when I do print("%d",error) is 9 which should be "wrong file descriptor". GitHub This repository has been archived by the owner. The same code works on other flavors of unix (solaris and HPUX) . 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 My issue was slightly different. We have tested the same code on both versions for nfsv3 and it fails with below error on RHEL 7.4 for nfs share. Moreover the hardcoded file descriptor may already be used. 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. . Hi I am trying to install the docker-image of V2.0.0p9 on my docker-swarm setup with NFS for volumes. I think the application's expectation is that it fail rather than returning a decimal-string-only service entity. In Python, file descriptors are integers (positive) that identify the kernel's open files kept in a table of files. It also means that in order to place an exclusive lock, the file must be opened for writing. FLOCK(2) Linux Programmer's Manual FLOCK(2), Linux 2021-03-22 FLOCK(2). @roblourens Environment Well occasionally send you account related emails. that I teach, look here. Did neanderthals need vitamin C from the diet? 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. 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. Summary File descriptor obtained using open() cannot be used in flock() call when the file is on NFS mount. Though the later one is what you're looking for, the POSIX API doesn't expose it, thus are not available for linux and unix. It should be run on the remote where the NFS drive is. NFS is the common for file sharing on NAS server and Linux / UNIX systems like, HP-UX, Solaris, Mac OS X, and others. dgaudet 22 Sep 1998 18:06:03 -0000 On macOS, the output-sync feature tries to lock the output file, but the file locking APIs don't work on a pipe. 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. I don't know why this code is not working under NFS4, using NFS3 works perfectly. The latter is simply a way to manage the systems calls from shell scripts or the command line. 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. Uninstall the ssh extension Download this, change extension .vsix remote-ssh-.44.1.zip I just checked the manpage of flock, in the NOTES section comes the important part: You only opened the file for reading, which is the reason why the flock call fails. Disclaimer: Python is not my domain of expertise, I'm just a newbie hacking. Thanks in advance vmware-53.log CID Chain.zip Exchange Server 1.vmx 0 Kudos IBM's technical support site for all IBM products and services including self help and the ability to engage with IBM support engineers. Since Linux 2.6.37, the kernel supports a compatibility mode that allows flock() locks . By clicking Sign up for GitHub, you agree to our terms of service and It is now read-only. [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. UNIX Linux Unix POSIX [ ] I/O POSIX UNIXLinux And kernel's config CONFIG_NFS_FS, Because I need to map this file on disk using mmap (), which requires a file descriptor. If my answer solved your question, please mark it as accepted answer Ready to optimize your JavaScript with Rust? One is the byte range locks, the second is the access share. Which could be reason. Any suggestion regarding this problem would be really helpful. privacy statement. we have brought the pool online after scrubbing. I had to move the openwrt tree to a local filesystem to be able to compile. Where does the idea of selling dragon parts come from? Would that work? I would like to clarify. author of 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. I executed "exportfs -ra" on the host. Do you know which NFS you are using? What the exact command should I use? The text was updated successfully, but these errors were encountered: Hi @roblourens , yes I'm using the NFS file system. If the FD_CLOEXEC bit is set, the file descriptor will automatically be closed during a successful execve (2). dbopen(3), Well occasionally send you account related emails. To learn more, see our tips on writing great answers. Asking for help, clarification, or responding to other answers. @roblourens lockf(3), 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). Sign in This is more reliable on some filesystems, Ansible version: ansible-2.8.0-1.el7.ans.noarch. I tried, Install it (e.g. I was able to mount with version 4.0 and it still works. Capacity 261853184 (63929 file blocks * 4096), 78376960 (19135 blocks) avail. Open BackendVFS ObjectStore files in R/W mode when obtaining exclusive locks, (How one can reproduce the issue - this is very important). You cooperate by requesting the lock before doing the operation, and then by releasing the lock after you're done. You're trying to compile in an NFS mounted directory, right? How can you know the sky Rose saw when the Titanic sunk? Sorry, should have double-checked before posting. However, after the connection, it failed to open a folder on the server, showing the same error (flock: 99 Input/output error). And here is a test script is you can try running against your NFS $HOME. Yes. Can several CRTs be wired in parallel to one oscilloscope circuit? Making statements based on opinion; back them up with references or personal experience. Sorry I should have bumped the version number to prevent that. Yes, I ran the test script on the remote machine. 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. 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. I mean, the "server" in this case is the file server that hosts your NFS directory. flock(1), You should print the errno (as suggested by others) to see why the lock request had failed. vim, htop, and tmux are my favorite packages to install on each machine I need to manage. Can someone tell me the output of dpkg -l | grep nfs-common so I can use exactly the same version of the client code? Can confirm that above script causes the original error on the 'exlock_now || exit 1' line (and severs my ssh connection). Locking of CTA object store files fails on NFS mount. You have answered my question. syscalls(2), What happens if the permanent enchanted by Song of the Dryads gets copied? Same OS, same nfs-common version, same mount details. NFS v3 doesn't have a locking support on the protocol level. Well I can add a setting to put the lock in /tmp. . Turning the sco machine into an nfs server instead of a client. They assist in performing various functions related to files. 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. Dual EU/US Citizen entered EU on US Passport. sudo netstat -an | grep socket *br>. I don't have the access to the server hosting the NFS directory. getrlimit(2), NFS flock functionality appears to have changed between RHEL 7.3 and 7.4. The idea is to avoid the file being written while a process is still reading it. /usr/xxx -access=hostname I ran exportfs -av and /etc/xtab looks fine. But few files are showing this error Bad exchange descriptor Please let me know how to remove these files 3. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Job fails because a file lock cannot be created on NFS folder. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I didn't know if I should post this here or in a new issue, so apologies if it is in the wrong spot? The file is created in the specified NFS "path" . Thanks! You can open a new issue with some details. The text was updated successfully, but these errors were encountered: "Bad file descriptor" when trying to lock file on NFS mount. Is it appropriate to ignore emails from a student asking obvious questions? I must read the man page. great! I belive this question would more fit on StackOverflow instead on this site. It worked after installing nightly version of remote SSH extension and checking "Lockfiles In Tmp". Since Linux 2.6.12, NFS clients support flock () locks by emulating them as fcntl (2) byte-range locks on the entire file. I would like to use a semaphore to avoid modifications on this file until I am done with it. maintainer of the Some shells do not support file descriptors larger than 9. 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. The file is created in the specified NFS "path" . If found to be negative, that indicates error or a "no value" condition. Any update on. @roblourens nightly version for me also working, thanks. Raw Receiving error "flock: 11: Bad file descriptor" on 7.4. First of all you must determine disk device with vmkfs tool: ~ # vmkfstools -P /altbootbank. This works for me. 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"? Flock is the name of both a kernel level system call and a command line utility. signal(7), 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. There is no output for dpkg -l | grep nfs-kernel-server. Solution Use the following command to mount NFS: . Locks . I think I read that flock should be supported on NFSv4. With advanced shells (bash, ksh93, zsh), the following can be done: Clone: 36% done.Failed to clone disk : Bad file descriptor (589833). Is this an at-all realistic configuration for a DHC-2 Beaver? The same code works on other flavors of unix (solaris and HPUX) . By clicking Sign up for GitHub, you agree to our terms of service and fcntl(2), Reset the values manually in the aforementioned config file for STORAGE_DATADIR & STORAGE_DATADIR_UPLOAD. @roblourens Forgive my ignorance, but where would I find the nightly? (If the execve (2) fails, the file descriptor is left open.) The following command will allow you to open a file descriptor in /etc/fstab. *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 . This program was working perfectly until stop doing so. 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 . Or your local laptop. The flock command works on file descriptors, not files. Fix File reading failed-VLC could not open the file (Bad file descriptor)-file reading failed vlc. LIKE &. cryptsetup(8), Sorry, I have to find time to set up an NFS drive and do some experimentation. Destination disk format: VMFS thick Cloning disk 'Exchange Server 1-000001.vmdk'. The nfs-client is a windows machine running NT Server. A file descriptor is a unique number used to access a data resource. Linux debugging, tracing, profiling & perf. And if you know the name of the command to mount the nfs drive, that would be helpful as well. 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 It works for the first time. Oh, I see. Do you have any ideas what is happening? However it looks like the code is written to handle the case where all 100 iterations fail data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKAAAAB4CAYAAAB1ovlvAAAAAXNSR0IArs4c6QAAAnpJREFUeF7t17Fpw1AARdFv7WJN4EVcawrPJZeeR3u4kiGQkCYJaXxBHLUSPHT/AaHTvu . HTML rendering created 2021-08-27 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? fork(2), For details of in-depth Should I exit and re-enter EU with my EU passport or is it ok? log: 2021-09-08T09:04:27.477115169Z ### PREPARE POSTFIX (Hostname: 19d7bab954cc, Relay host . 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 . This probably is not the "remote" machine that you are connecting to, that is the NFS client. Resend (apologies, tried to send it to -users by mistake initially). 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 You could change the path in the script to somewhere in /tmp to test. 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. But no change: /proc/fs/nfs/exports remains empty and the client reports the same . because I had started working with an integer file descriptor instead of a file pointer. You can disable extensions.autoUpdate temporarily to prevent it from overwriting the vsix. Using this VSIX extension I successfully connected to the remote machine and opened project folders. NAME | SYNOPSIS | DESCRIPTION | RETURNVALUE | ERRORS | CONFORMINGTO | NOTES | SEEALSO | COLOPHON, Pages that refer to this page: 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. Thanks/ LIKITH.S Share 356 views Related Questions Related Tags 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) {. flockfile(3), Network File System (NFS), a distributed file system protocol developed by Sun Microsystems. Hi all, I am observing an interesting issue with the OpenWRT build process when I was able to connect to the remote server. Next if you run the code on another terminal it will immediately return to prompt. The only difference, is the file system where the fileNames are located. Help us identify new roles for community members. Only after uninstalling and re-installing the extension can I successfully connect to the server again. macOS (OS X) can be setup as an NFS client to access shared files on the network. 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. Did you run the test script on the remote machine? Therefore, exit () is never called. UUID: 0xxxxxe. To solve this problem, here are the steps to increase this limit. mount:nfsmount failed: Bad file descriptor xiao.liang 15 years ago Hi, I have encoutered a problem when mount a nfs filesystem. 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