I have a VPS with Ubuntu 8.10 64bit and I was looking at / and found like 10.000 files from "core.1000" to "core.10000".What is that? Something I can delete or it is a application that I have installed?
Some of the files at "/":
-rw------- 1 root root 5435392 Jan 15 10:00 core.5755
-rw------- 1 root root 5562368 Dec 14 16:39 core.5757
-rw------- 1 root root 5160960 Dec 22 08:40 core.5758
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I have installed Ubuntu server 10.10 on my new computer which uses AMD Phenom II X6 1090T. But I have noticed that my CPU cores were not able to run at 3.6GHz at any time, even when I only have one CPU-intensive computing job. They are either at 3.2 GHz or 800 MHz, like this
Code:
$ cat /proc/cpuinfo | grep -i "cpu Mhz"
cpu MHz: 800.000
cpu MHz: 3200.000
cpu MHz: 3200.000
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My maximum CPU frequency seems to be locked at 3.2 Ghz:
Code:
$ dmesg | grep "pstate 0"
[ 1.595918] powernow-k8: 0 : pstate 0 (3200 MHz)
I goggled around and it seems that Linux 2.8.35 kernel have solved the problem. I just do not understand why it does not work on mine.
Code:
$ uname -a
Linux hogwarts 2.6.35-22-server #35-Ubuntu SMP Sat Oct 16 22:02:33 UTC 2010 x86_64 GNU/Linux
Is the kernel and core system same in server and desktop 9.10? How do I update/upgrade server similar to what update manager does in desktop?
View 9 Replies View RelatedI'm having some problems getting the GUI installed in my Server 10.04 installation.
I've installed the Ubuntu server 10.04 32bit with a VMWare player on a Windows XP Pro host. Everything seems to have gone ok but at the end of the install it said that VMWare items are being installed and while that happens I can only use the terminal mode or I could wait for the GUI to load. Well the GUI never loaded so I logged in through the terminal.
I realized immediately that I'm over my head as I'm more familiar with DOS rather than bash or the terminal commands of Ubuntu. So I tried to look up on the internet (from my host machine) on how to start or install the GUI interface for the server. I've found lots of things that show commands like:
sudo apt-get install gnome gdm
or
sudo aptitude install gnome-core
but in all cases I get a message that the package is not found. So I'm wondering how do I find the package so that I can install this?
i am running gigabyte GA-M68M-S2P and AMD sempron 2.7. the problem is when i try to run dual core. it will boot and run for 2mins then it crashes. single core runs perfect.
View 6 Replies View RelatedJust a quick question. Does Kubuntu Karmic support core 2 E8500 out of the box or do you need the SMP kernel?
View 3 Replies View RelatedHow to configure openssh, /etc/sshd_config on a new installation of Fedora Core 14? [since tt does not work right out of the box, I cannot ssh into it]
View 2 Replies View Relatedi have a server & there is a website which generate alot of core files, these core files takeup alot of space by time, so i decided to stop it, in WHM the core dump option is disabled, & i used the following command
Code:
ulimit -c 0 but nothing stoped generating core files, i also used the following method http://www.cyberciti.biz/faq/linux-disable-core-dumps/ also this method doesnt stop generating of core dump files, my question is : how i can permenantly stop generating core files for all users or for specific user
I downloaded the x86 server version for Lucid twice today. Both times before burn the md5 match those published on the Ubuntu site. I am attempting to install the system on a Dell poweredge 2500. 2x 1.4 gb P4 procs, 1 gb ram, 750 GB HDD (raid) Boot to installer. it goes through the standard language checks, keyboard, checks for cdrom, then attempts to start copying files.
It gets to 17% copy on fs-core-modules-2.6.32.21-generic-di and hangs there for 5 minutes or so. Then comes back with the error that it could not get the file and asks if I want to retry. all retries lead back to this error. As I said, MD5 is exact, burner does not complain of a bad burn, and disk is closed at the end of the burn. so, has anyone else been able to install Lucid server x86? burned four disks today, one pair on two different burners. All fail at 17% retrieving that file.
I've a Compaq CQ61 laptop, and i noticed that one of the cores is always at 100%.
I didn't check the duration of the battery but surely it will "eat" my battery in a hurry
Has anyone noticed ABRT not being able to connect to Bugzilla or the remote Core Dump analysis server? Since my upgrade during the beta phase of F15 I have been unable to file bug reports from ABRT's traces, nor has it offered me the option to file bugs to bugzilla. What it does, however, is offer me to analyse the Core Dump and backtrace of the crash using either the remote server or locally with GDB. Needless to say I'm clueless in GDB, and it requires a LOT of debug symbols found in the corresponding debug packages. But trying to use the remote analysis server always results in a message of the server being busy and to try again later. IIRC the last time I was able to file a bug through ABRT was in 13, has anyone been able to do so in 15?
View 14 Replies View RelatedI just loaded F14 on an old Dell Dimension 3000 with a dual core processor but only one is showing. Here's the output from top:
processor: 0
vendor_id: GenuineIntel
cpu family: 15
model: 4
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I have a command line OCR program called OCR Shop XTR (Vividata corp) that I am using on a system with a 6-core AMD chip. I changed the bios so that the 6-cores were activated, but htop shows me that while the program is running, I am only getting activity on one core (the program maxes out the one core with consistent usage between 97% and 100%).
I have read that many programs are not written to take advantage of multiple core cpu's. However, I am just hoping that there is some way to get this program to take advantage of the extra cores. Does anyone know of a way to invoke programs from the command line which would spread the workload out among additional cores?
Here is the output of uname -a:Linux linux 2.6.37.1-1.2-desktop #1 SMP PREEMPT 2011-02-21 10:34:10 +0100 i686 athlon i386 GNU/LinuxAnd here is the output for one of the cores from cat /proc/cpuinfo:processor : 5
vendor_id : AuthenticAMD
cpu family : 16
model : 10
model name : AMD Phenom(tm) II X6 1100T Processor
stepping : 0
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Is there any Linux API that will let me control on what core will a thread run? If not, do I have to use assembly language?
View 2 Replies View RelatedI have now installed Wheezy on two different hard drives and in each case it seems only one CPU of my dual core CPU computer is recognized. System Monitor, Gkrellm and lscpu show just one when prior to the new install the old Wheezy showed both CPU's. I have put the hard drive into two other computers with dual core CPU's and all show just one CPU.
Interestingly System Profiler and Benchmark (hardinfo?) > Devices > Processors now show a large amount of processor infomation when with the old Wheezy I would only see both CPU's listed and nothing else.
I recently read in a forum that by default the Linux kernel only activates one of two cores in a dual core processor. Searching online gave one option to find out and that was the mpstat command. I therefore ran the command and got the following output.As the result says, it shows only 1 cpu. I was wondering what I could do to activate both cores in my machine, and whether doing so was going to cause me any problems.
View 14 Replies View RelatedAssume someone bind a particular process to a particular CPU core(In multi core machine) by using sched_setaffinity() like functions. Then how we can get that process running core id and CPU core utilisation of that process on that running CPU core(Pragmatically or by a Linux command)?.
View 5 Replies View RelatedI have created a virtual machine of a system running Fedora Core 4 and I need to upgrade it to Fedora Core 10. Based on what I have read, it iis possible so I started theupgrade process. I get an error message saying that /dev/hda6 (my root paritition does not exist) even though it does.
Does the installer need to read a label from /etc/fstab? I executed tune2fs -L / /dev/hda6 amd ,and added LABEL=/ for the corresponding entry for fstab. but the FEDORA CORE 10 is still giving the same problems for the installation process. Should I upgrade to an intermediate verson like Fedora Core 7 first?
I've a program that launches new processes, and wait for them to die before it exits. So, for example, my program is a process, and it launches 3 more processes, and when the 3 child processes end, it will exit.
As you see, at end of the example, the program used a total number of 4 processes.
1 - Now, I'm running this program in a CPU with 4 cores. This means that the program used each core for each process?
2 - How can I know which core the program used?
I installed Gnome on my server using the gnome-core and xinit packages so I could use MySQL Workbench.I start up Gnome when I need it via startx./etc/init.d/gdm doesn't exist so I can't use gdm start or gdm stopHow can I stop Gnome and the X server in this situation?
View 1 Replies View RelatedI want to generate core dump files from my program when it crashes. Its a pretty big process and has about 10-11 threads in it.I have followed the documentation to enable core dump by setting ulimit to unlimited etc. I quickly tried "A demo program creating a core dump" from the following webpage, which succeeds in Segfault and dumping a core file in the directory that I configured.However, I tried running my original program and caused it to crash. I did this by making calls to kill(), raise() or the same null pointer access as shown in the webpage above. In each case, my program crashed but did not generate a core dump file. Am I missing something?My program is in C++ and my environment is Redhat 9.0 (kernel 2.4.20)
Going through the "Why do I NOT get a core dump?" section on the same webpage as above, I can see two potential problems. One - there are issues with the suid/sgid (bullet # 6). I am not able to change any settings with suid because my system does not contain either /proc/sys/fs/suid_dumpable or /proc/sys/kernel/suid_dumpableTwo, my program has threads in it and the bullet # 8 is the problem.
We have a small cluster of 20 HP systems, all running CentOS 5.3 in an NFS-root environment. Half are quad-socket, quad-core Xeon E7340 @ 2.40GHz (total 16 cores), the other half are 8-socket, quad-core Opteron 8354 (total 32 cores). All systems have a Mellanox Infiniband adapter ("Mellanox Technologies MT25418 [ConnectX VPI PCIe 2.0 2.5GT/s - IB DDR / 10GigE] (rev a0)")
With kernel 2.6.18-128.1.6.el5, infiniband works fine on all systems.
With the update to kernel 2.6.18-164.11.1.el5 (and both types of node running the same NFS-root image), the 16-core Xeons still work fine. Infiniband no longer works on the 32-core Opterons. Specifically, either the ib0 interface fails to appear, or it does appear but when configured with an IP address, doesn't actually work. In either case, loading the IB kernel modules takes a long time, but I haven't instrumented the load script yet to see which module, if any, is at fault. More errors listed below.
However, if I tweak the BIOS of the 32-core systems to reduce the per-socket core count to 2 (so effectively 8-socket, dual-core, down to a total of 16 available cores), Infiniband starts working again. Putting it back to 32-cores makes it fail. Booting the older kernel makes it work again. In summary: old kernel, IB works on all systems. Newer kernel, IB only works on 16-core systems.
Updating the IB firmware from 2.5.0 to 2.7.0 (latest available) doesn't help. I also did a full 'yum update' to make sure that libmlx4, openibd all other associated packages were up-to-date. Doesn't help either.
Some errors that appear on 32-core nodes:
ib_query_port failed (-16) for mlx4_0
ib_query_port failed (-16) for mlx4_0
mlx4_core 0000:04:00.0: SW2HW_MPT failed (-16)
mlx4_core 0000:04:00.0: SW2HW_MPT failed (-16)
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Only Single core active on quad core AMD when acpi is active.with acpi=offuname -aLinux dvip4 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 x86_64 GNU/Linux
Code:
cat /proc/cpuinfo
processor : 0
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I have searched many forums but did not find a way to FIND A CORE FILE WITH OUT USING FIND COMMAND.
View 11 Replies View Relatedi download the rpm package of gcc .
View 10 Replies View RelatedI am in school for my CIS degree and the book I am using this session covers Windows XP and Fedora Core 4. I am having trouble finding & downloading Fedora Core 4. My question is: Is there a big enough difference between Fedora Core 4 and Fedora Core 14 that I would not be able to use 14 instead of 4?
View 14 Replies View RelatedIs there any way to find the core files with out using the FIND command?
View 1 Replies View Relatedi wanted my own server so installed ubuntu and installed apache2, vsftp etc apache2 works, typed in localhost and it showed the 'it works' page. now, after setting up vsftp, i am now able to access the server via ftp on another pc. i used my username password which was created at the beginning of the Ubuntu installation. it connects fine, but everytime i am trying to upload a file to the var/www/ directory, it says permission denied. what do i have to do in order to transfer files into that directory?
View 3 Replies View RelatedI would like to have multiple php.ini files for multiple sites.
I've a production site (word wide available) and a test site (available to some selected IP-addresses). I would like to set some different PHP settings for the test site, for example, 'error_reporting' and 'display_errors'.
Is this possible? I'm not looking for some CGI hack, unless it wouldn't work any other way.
When we download ubuntu iso images from the download mirrors, md5sums, sha1sums and sha256sums are provided for the download. But, there are also some .gpg files provided. Are they used to verify some signature or something? How do I use them to verify the signatures of the packages?
View 7 Replies View Related