I just installed the latest version of Ubuntu 10.04 LTS, and am wondering if support for my dual AMD processors is built into the generic kernel, or do I need to compile a custom kernel? I have an HP tx2-1025dx touchsmart.
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If I have SMP kernel would it work with single processor or only work with multiple processors system?
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View 4 Replies View Relatedwhen I start my application it creates a message queue and forks a process. The child process reads multicast packets from the network and writes to message queue. The parent process reads packets from message queue and compares source ip and sequence number (it is part of payload) with last 64K packets received to see if it has received a duplicate packet. I am using message queue as a buffer because I do not want child process to drop any packets while it is comparing it with previously received packets. The message queue is large enough to contain 64K packets. To compare the old packets I am using array of structures as circular buffer. During a spike I may receive 100 - 120 packets per milli second.
When I run my application, the parent process keeps up with the child process, I can see that with "ipcs -q". After about 30 seconds it cannot keep up and the size of message queue keeps increasing until it is full. When I run "top" I can see that one CPU/core is hundred percent busy while other 7 cores are idle. It seems that both processes are running on same core and the child process gets interrupts everytime there is a packet on the net and starves the parent process.I am running RHEL 5. The system has 24GB memory and my application is the only application running on it. It is a HP G6 server.
I was previously using kernel-huge until a slackware update caused some problems for me, so I switched over to kernel-generic but now I'm wondering if it uses both of my cpus on my dual core processor.
View 1 Replies View RelatedI want to put a program (something like GRUB) on my flash drive, so that I can install multiple OS'es, like Ubuntu, Fedora, Dreamlinux, etc. Are there any good programs to do this?
View 6 Replies View RelatedI'm starting to have A LOT of opened windows in my machine. Sometimes within a project, I have e-mail/task management/personal e-mail/twitter, and a lot of different opened applications/terminals in my Linux workstation.Sometimes it would be interesting to have different workspaces to projects instead of this configuration I have nowadays that are classes of work (bad name, I know, but I think you got the idea).I'm starting to think about using two monitors: one with Corporate Management, Work and Personal. The second monitor is only the development state: each workspace here is about a project being worked on instead of groups of works like before. A workspace may be implementing different classes for example.
My question is: I just want to change to a second monitor using the mouse. I want to still be able to change workspaces in the same monitor using keyboard shortcuts. The keyboard shortcuts wouldn't change monitors, just worskpaces on the same monitor. All the tutorials I read (like this one) only tells how to use multiple monitors but doesn't answer my question about keyboard shortcuts.Does Linux (Ubuntu 10.04 Lucid Lynx or Debian 5.0.5 Lenny) support this envisioned setup (Different workspaces in a way that keyboard workspace switching only works in the current monitor) ? If so, how?I haven't tested this setup, that's why I'm asking. In this question the user says it works exactly how I want it to behave, can someone else confirm it?
I'm experimenting with a load balancing setup and have found some pretty good guides, but they all assume that ipvs support is built into the kernel already. e.g. http://www.howtoforge.com/high_avail...apache_cluster
So of course "modprobe ip_vs_dh" simply outputs "FATAL: Module ip_vs_dh not found."
I quit using Fedora when FC4 came out, but I decided to switch back now that F11 has come out. I'm liking everything so far, though it is different from what I became used to (Ubuntu). My main question so far has to do with language support, and I cannot seem to find an answer anywhere for this. I need to have language support for several languages (including support to enter complex characters) for all applications for which it they are available. How do I install all the language files at once for, say, Korean, rather than installing each library one by one?
View 6 Replies View RelatedI was wondering if there's a way for me to get real-time kernel support on regular Ubuntu 9.10 through some sort of update. I know Ubuntu Studio has a real-time kernel, but I'd prefer not to use it. I'm a fan of the original Ubuntu.
View 1 Replies View RelatedI have a PCI SCSI controller with this chipset that was working fine in 10.04 to drive a Polaroid Sprintscan 35 Plus scanner. Having just run the upgrade to 10.10, the scanner is no longer being seen. If I go into the controller BIOS the scanner is seen there, and running lspci shows the controller as
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SCSI storage controller: LSI Logic / Symbios Logic 53c875 (rev 04)
Running
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sudo modprobe -l | grep "sym"
shows only
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kernel/drivers/scsi/pcmcia/sym53c500_cs.ko
kernel/drivers/scsi/sym53c416.ko
kernel/drivers/usb/serial/symbolserial.ko
Seems like support for the 53c8xx chipset has disappeared?
I'm trying to find out when QME2572 (Qlogic) card became support by the kernel. We have a RHEL 5.1 system that is moving to new hardware, however the kernel at this release doesn't support the new hardware, due to the Qlogic card change. I tired the Redhat KB and Bugzilla. Is there a Kernel change list etc I can search. Never really played around with the kernel too much so I'm just after some pointers for looking up this information. Offically its not supported until Redhat 5.3, I'm trying trying to research kernel info so I can tell the customer they have to upgrade.
View 3 Replies View RelatedI have had for a test installed Feodora but was so silly checking the box for encryption the HD. Now I tested all for removing Feodora (no data anymore on the disc) but even the test unlocking this from my ubuntu system failed with the following error:Error unlocking device: cryptsetup exited with exit code 251: Command failed: Failed to setup dm-crypt key mapping.Check kernel for support for the aes-xts-plain64 cipher spec and verify that /dev/sdb2 contains at least 508 sectorsI installed some encryption packages in the meantime - but non was helpful.Would some kind person - who understands this better than I - please provide the detailed steps needed to mount and unlock the encrypted Feodora installed hard disc. Maybe one of you know which packege I have to install.
View 2 Replies View RelatedI've a PowerMac G4 MDD that has OS X Leopard on it. I have repartitioned it to accommodate an Ubuntu install. However, I have no Disk Drive in the G4, it was broken so I removed it. Now I have an iBook G4 I have tried using an ubuntu cd on to install to the said PMac in TDM, but of course after reading the Ubuntu kernel doesn't support install to firewire by default. Can someone help me by compiling a Cd image I can use to accomplish this or tell me how without the use of another linux box?
View 2 Replies View RelatedI was trying to troubleshoot a problematic server. The server, which runs on CentOS 4.x, is attached to Hardware RAID / disk array. Since the OS partition is having issues, I plan to troubleshoot the server by booting up with Knoppix 6 in "knoppix 2" / text mode. Everything went fine except, I'm not able to see all volumes available on the disk array. Only the first volume is presented.
Based on this, I'm suspecting Knoppix 6 kernel is not supporting Multiple LUN by default, based on a few Google search. Tried kernel parameters such as "max_luns=128" and "max_scsi_luns=128" at boot prompt but no luck. how can I enable Multiple LUN support during boot time or right after boot time?
how is the support for multiple, two or more, monitors in ubuntu (10.04) when using a graphic cards from AMD(/ATI), for example the HD 5770. (Which I'm currently using). I know that DP is required to use three monitors on a regular card. But other than that, will it work? Am I to expect a lot of work to be able to get it working? Or will it simply be impossible? (And yes, I know that AMDs(/ATI) drivers aren't always the best... Although changing to a card from nvidia at this moment isn't possible)
The background to my question is that I'm thinking about buying another monitor, same model as the current one I'm using, and later on perhaps expand to buy another one.Tried to search for it but wasn't able to find how the support would be in linux, and ubuntu in particular, since most I found is about the windows support, which should work quite easy and therefore isn't relevant.
How to enable multiple language support in centos?
understand that we need to install scim (smart common input method)
but if I install and choose only one language, what should I do after installation
from http://www.centos.org/docs/4/4.5/rhel-ig-x8664-multi-en-4/s1-langsupport.html
I guess right now after i install scim, I'll still not able to view other language (Asian Language) web sites
I use mpssh or pssh to issue commands to multiple servers. Problem is that some of the commands require pseudo terminal and won't work with these tools. This will work just fine: "ssh -t user@server command" as stated under SSH man: -t = Force pseudo-tty allocation. This can be used to execute arbitrary screen-based programs on a remote machine, which can be very useful, e.g., when implementing menu services.
Multiple -t options force tty allocation, even if ssh has no local tty. So, is there a workaround for the above tools? Or is there any other tool for multi server administration that will work? If you are not sure what I am talking about just try executing "ssh user@server top" and "ssh -t user@server top" to know exactly the difference.
I am installing a new large 4 Tb RAID (hardware) under 9.10. Does GPT support come by default in the new 9.10 kernel? How can I check? I gather I need to use PARTED to make a GPT partition table on the raid. Anyone know details of how to do this? [URL]...
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View 2 Replies View RelatedI have a server with 48 cores, 8 6-way Opteron CPU's. Ubuntu Server 9.04 only sees 32 processors. Is there a limit on the number of cores/processors that the server will use? Windows 2008 on the same server sees all 48 cores and the so does the BIOS, so this is unique to Ubuntu right now.
View 5 Replies View RelatedI just want to know what is the default Fedora 32 bit kernel - does it support more than 4G memory. I would like to save myself from compiling custom kernel and all following fiddling (nvidia drivers, virtualisation software etc) and 64bit OS is not for me - too many apps that I need are missing, of poor quality or need more manual intervention. Actually if bigmem / whatever it is called is configured in the default kernel, this may be the reason to switch. I intend to use 4 to 8 GB memory and it's a desktop, so server builds (like Ubuntu) are not for my taste.
View 2 Replies View RelatedA while back I compiled a custom kernel, 2.6.35. I forgot to add UDF support when configuring and compiling. Will I need to re-compile the kernel to get UDF support or is there some other way I can add it?
View 6 Replies View RelatedI am in verse to perform TCP Traffic Tests and need to know if guest OS has SMP kernel support. How can we know if guest OS has SMP kernel support?
View 3 Replies View RelatedI use Slackware 13.37 32-bit version on ThinkPad X60s. I compiled two Window Maker dockable applications monitoring the processor temperature, fan speed, and battery status: wmpower (see: [URL]) and wmlenovo (see: [URL]). Both these applications refuse to work.
wmpower displays the messages:
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CPU frequency scaling available
No power management subsystem detected
No power management support...
wmlenovo displays the message:
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No ACPI support in kernel
Did I missed something obvious during the configuration of the system and ACPI doesn't work for me or there's some more serious problem with my system?
I am a long time (1.something) slackware user and maintainer of a mirror site.I'm suddenly having problems with my favorite distro. (1) I've been mainly running Slackware64. When I was experiencing recent problems on a Slackware (32) 13.1 system, I discovered the huge-smp kernel does not support more than 4G of RAM. This is an obvious bug, and I am shocked that there is no fix out yet. Surely I can't be the only Slackware 32 user with >4G of RAM. I've verified it on a 12G i7 system and an 8G Athlon64-X2 system.
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View 4 Replies View RelatedAre the 64 bit Lucid disks suitable for Intel i5 processors? The AMD64 part is making me think not.I already have the 32 bit version running very nicely - should I have gone 64 bit though? What are the advantages/ disadvantages, and why does it say not recommended for daily use next to the 64 bit download? As far as I understand you can run 32 bit binaries without problems on a 64 bit install.
View 7 Replies View RelatedHow i can do disable support SMBus for kernel? What is parameters of kernel-config do enable SMBus?
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