As per the documentation of sync [URL] , it schedules the writes but does not necessarily complete the write upon return.
Is there any other way to make sure we sync and it returns after it has written all the buffers to disk?
I am trying to test a Gigabit Ethernet Tattile line scan camera. I installed the driver properly set the ip of device using utility given in the driver. when i am trying to open the live view of camera using a utility given (tag_show) it gives me error in /var/log/messages TBP ERROR: No buffers available in free buffers list When i looked into the code of utility it is doing ioctl call where it is failing with errno=12.
View 4 Replies View RelatedWhat is the basic difference between 'synchronous' and 'asynchronous' io in the linux/unix platform ? And in Linux RHEL5 and AIX 5.3 / 6.1, How can I measure that my server support either 'asynchronous' or 'synchronous' I/O ?
View 1 Replies View RelatedOn standard Linux setups you have two general paste buffers, the main copy(^C)/paste(^V) one and the select-text/middle-click one. For both of these buffers:
At what level in the environment are these buffers stored/managed; the kernel, the X server, KDE/Gnome, or some other service somewhere? Can they be programmatically accessed somehow using some standard library?
I want to know the status of udp received buffer ,before receiving nest packet.Are there any API to know the status of received buffers.
View 2 Replies View RelatedI'm fairly comfortable with emacs but I can't seem to find how to do this. I deal with a lot of text files and find myself performing a lot of regular expression replacements to correct the formatting of the text -- or to extract certain tidbits of data from large ugly-looking files.
I know how to perform a regular expression replacement in one buffer at a time. But how do you perform a regular expression search and replace across all open buffers? I have found a method to perform a regex search and replace across a directory by marking files but I need to do it in the open buffers.
I have a few servers that are exposed to the internet. When someone tried to brute force hack in to the ssh, ossec adds their IP to the hosts.deny. Then the hacker (read: script kiddie) moves to the next IP up the line and hits my next server, etc, etc.
I end up getting 20 emails for all the servers that they hit.
My question, is there anyway to sync the hosts.deny file across multiple servers so that if they are locked out of one, they are locked out of all?
I've discovered Firefox Sync a while ago, and it's absolutely awesome. Now of course I'd like most of my software to work this way! So is there a way to get the same behavior with Thunderbird?
View 1 Replies View RelatedI have a Linux server running CentOS with 2GB RAM. I am searching in google and also in this forum but could not find any luck yet. I am searching the way that we can receive notification by system to a specified email when the memory reached a specified value we defined.
Is there any tool or sort of shell script we set via crontab every minute to check that?
I'm a little bit confused with partitioning the filesystem in Linux. the difference between creating the file system with fdisk and mkfs (when formatting the disk). I can't clearly tell my problem, so please look at this picture:
View 2 Replies View Relatedi have generated .exe file from C file (ie filename.c ) after compiling in linux machine with -O option. I wish to know about how to run that .exe file when linux system starts up ?
View 3 Replies View RelatedI am trying to connect to a PPTP VPN at work, and I cannot accomplish that. Both server and client are using Ubuntu 10.10.
Code:
Jan 7 11:32:26 multicore-dev03 NetworkManager: <info> Starting VPN service 'org.freedesktop.NetworkManager.pptp'...
[code]....
What I want is to use the systems account as the samba accounts.In school we have a project to simulate some sort of corporation with different platforms. I've created a map called shared and for authentication the users should only need to be a member of the group employees. (force group = groupname in smb.conf right?) Now, I don't want to create the users with smbpasswd -a because there is alot of accounts and the users should be able to choose their own passwords. So, is it possible to sync the system accounts with samba and only use group as authentication?
View 2 Replies View RelatedI'm running a dual-boot; Lucid and Win XP on a HP Pavillion.My time settings are about 8 hrs off between the two operating systems. If I correct the time in Linux, it will be wrong when I boot in Windows. If I correct it in Windows, it will be wrong again next time I boot into Linux.Besides the obvious solution of removing Windows from my machine (which I'm not ready for), what should I do to fix this?
View 1 Replies View RelatedSo 2 days ago everything was all fine on my machine. Has been for about a month, but all of a sudden as of yesterday I have no sound, I am seeing IRQ interupts on boot, During boot I am seeing file system is not clean, , and swap space is being used for the first time while doing normal task, etc. These are 2 new hard drives in RAID 1 with ReiserFS. I should have used a newer FS but thats a whole other argument.
Anyways here we go.
The system is Debian Lenny amd64
Physical RAM 4GB + 6GB swap
/var/log/messages
Code:
Feb 21 07:35:09 Sarah kernel: imklog 3.18.6, log source = /proc/kmsg started.
Feb 21 07:35:09 Sarah rsyslogd: [origin software="rsyslogd" swVersion="3.18.6" x-pid="3994" x-info="http://www.rsyslog.com"] restart
code....
I am getting occasional errors during the boot process.One at the beginning and one or two when I switch to single user mode.I 'd like to run the system file checker to fix any possible errors.But when I run fsck in the terminal I get the message:Code:
mansour@ubuntu-notebook:~$ fsck
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
[code]...
Everyone always told me Ubuntu is a perdy Speedy OS. Im thinking otherwise so far, unless Im missing something. Basic problem where i see the lack of speed compaired to when this same machine is running windows 7 comes to web browsing. Mainly ..... vids. i downloaded Flash from the software center and downloaded java with the help of some commands i looked up. I cant watch more than about 8 seconds of video before it buffers. This common?
View 9 Replies View RelatedCan anyone answer me the color code of the linux file system?
Especially, for those which have different colors in the background also like some have green background colors and are written in green some have yellow background and are written in black,why is it so?
Also please explain me the color code of other also.
I use jpilot on opensuse 11.3 64bit to sync pim data with my Palm Treo 680 via bluetooth. This worked fine until today. Now I get the following error message when I try to sync: Syncing on device bt: Press the HotSync button now dlp_ReadSysInfo error Exiting with status YNC_ERROR_PI_CONNECT Finished.
The last successfull sync was on the 20th October and today is the 24th October. I did not change any settings in jpilot or on my palm device. So I guess there must have been an update of opensuse which causes this error. But I do not now how to look up the updates during this period or how to undo them. Was there an update between the 20th and the 24th Oktober, which might affect either jpilot or bluetooth functionality?
I've got Ubuntu One syncing a single 25MB folder on 4 computers. On one of these computers, the ubuntuone-syncdaemon process constantly pegs the CPU, using from 50-80% long after any sync-able files have been modified and successfully synced. The process is only using 8.9MB of RAM.
Specs:
Ubuntu 10.04 (lucid)
Kernel 2.6.32-24-generic
1000.8 MB RAM
Pentium 4 2.53GHz
Free disk space: 280.9 GB
System monitor shows 56.8% total RAM usage, 15.4% swap file usage.
Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps, the parameter is the maximum samples per second by which the audio is changed. -async 1 is a special case where only the start of the audio stream is corrected without any later correction.Searching the net makes one believe that this command is just some sort of magic.People just put it in the line and it just works. Isn't that nice?
It says nothing about how to change the TIME the audio starts syncing. Like do I want it to start 5 seconds delayed? Or what about 5 seconds sooner?What if the audio gets more out of sync as the video goes on? Can I slip it a little at a time? What? No magic?No one mentions a file that already has badly synced audio.So what -async 1 really does is simply start the audio at the beginning of the file. LIKE AS IF THAT ISN'T STANDARD PROCEDURE?So what is the exact solution to syncing a messed up video? And why can't it just do the proper "timestamp" sync in the first place?No docs, no info and you are left out in the cold.
I work for a company that makes portable devices running Linux and I was recently asked to make the underlying file system read-only for "security" purposes. Since the distribution is based on LinuxFromScratch, I know that very little writing happens at run time. So, even if the device runs on a usb flash device, I doubt that putting the root file system RO will be that beneficial. I am actually more concerned about a process actually breaking because it cannot open a file in RW mode than a process going rogue and filling the root file system with log files, etc. I'd really like to ear what kind of advantages disadvantages there really is with read-only file-systems.
View 6 Replies View RelatedI switched from 11.1 to 11.2 last month. I'm now having a smoother experience with openSUSE, with some exceptions.
One is Emacs.
A rather annoying "feature" that has appeared is the following: When editing a LaTeX file, compiling it (C-c C-c, using AucTeX macros) makes the Emacs window become shorter by one line. The same happens if I switch to some other buffer. It does not happen if I switch back to the LaTeX buffer. So, after just a few editing/compiling/checking errors sequences I find the original window half of its initial size...
A similar problem occurs when editing IDLWAVE scripts (it's a proprietary scientific data analysis language widely used in my field, but still has its Emacs macros), but only if I open an interactive IDL-shell to run the script.
So, I imagine it's not a problem related to AucTeX, although it might be related to the macros opening separate buffers/windows (e.g.: error messages) associated with the current buffer. Also, the problem does not go away if I remove my own .emacs customization files. Checking the Emacs bug lists, it seems that there are some bugs related to window resizing, although I have not been able to find exactly the same problem I am having. But, before reporting this one, I'd like to hear from fellow Emacs/openSUSE users. Just in case I'm messing things up somehow.
Currently using: Emacs v 23.1.1
Some more info: Dell Precision M65 portable workstation, NVIDIA Quadro FX1500 using the binary NVIDIA driver). Using OpenSuse 11.2 + KDE 4.3.1
I would like to try out the newest version of Synkron (1.6.1) on Ubuntu 10.04. How do I install it on a 64bit AMD machine? It is not in the default repositories and there are no deb packages for 64bit at [URL]? The deb version listed is for i383 1.6.0.
View 4 Replies View RelatedI've been happily using Ubuntu One for a few weeks now, synching some files and notes.
Today I inadvertently clicked another folder to 'synchronise with Ubuntu One'. This was a 500mb folder containing work and personal files which I'm not ready to rely on the cloud for.
I must admit I panicked a bit as I attempted to stop the synch. I deleted the entire folder (got it backed up on an external hd) and the synch stopped. I then logged in to the U-One website and deleted the folders and files it had uploaded by that point.
When I restored the folder from the ext hd it started to synch again. This time I removed my machine from the U-One preferences and eventually cancelled my account.
I have now restored that folder under a slightly different name so it doesn't try and synch it.
Meanwhile I've re-started my U-One account and have added my machine so it appears on the webpage. I've uploaded a file via the website. I've also been able to successfully synch Tomboy notes in both directions.
However, I can't synch files with my Home/Ubuntu One folder. I've attached screengrabs of the three tabs in U-One Preferences which show 'disconnected'. If I click 'connect' on the Devices tab, it simply greys out and nothing else happens.
Files in my Home/Ubuntu One folder all have the Unsynchronized emblem against them (a cloud with a cross in a red circle). code...
After upgrading to 11.04 I find that if I launch ubuntuone my machine immediately slows to a crawl and there is intense hard drive activity.This persists for hours. Only solution so far is to close ubuntuone and remove it from list of startup applications. I have made no changes to the files marked for ubuntuone syncing, and everything worked fine in 10.10.
View 4 Replies View RelatedI thought I would give Ubuntu One a try, even though I have used DropBox for ages. I think it is all set up ok, yet the box is open and it says along the top:
Using 102.6 MB of 2.0 GB (5%)
File sync in progress......
It has said that for 5 hours now.....is it actually doing anything? I have closed it a couple of times, and opened it, and it goes right back to the same thing. What is more weird is there are no sent / receive lights flashing on my Modem either.
U1 is trying to sync a file which doesn't exist on any of the devices attached to the account nor in the cloud folder. I've tried using U1sdtool to stop it, including the following commands:
I've also tried actually creating a file of the same name that it keeps trying to sync in the hopes that it will latch onto that one instead, but no go. I tried deleting that file, but no go. It constantly loops through the same nonexistent file, over and over and over and over and over...
It also only does this on one device. It does not do that on the other devices.
And, yes, I've done u1sdtool --waiting, and there is the nonexistent file, on the list, with all of the real files that actually do need to be synced backed up behind it.
my partitioning layout was as follows
Vista Recovery
Windows 7
GRUB
Extended
-->Fedora 12 (ext4)
so, I shrunk my recovery in Windows 7 successfully, and booted into my Fedora 12 live cd to run Gparted, and move the partitions so that the free space could go towards fedora, I did such, and then I couldn't expand the partition to my dismay. Next, I woke up this morning, tried to boot to fedora to run SSH, grub loaded, but when I tried to boot fedora, I got the "File system check failed" error, and when I tried 7, it just went to a blank screen with a single "_" in the top left-hand corner.
As in windows all the delted items will got to RecycleBin is there any such thing in linux.
(Or)
Can we retrive the file which got removed from file system(using rm command)