OpenSUSE Hardware :: 11.3 Treats Laptop As A Single Core?
Jul 15, 2010
How come openSUSE 11.3 is treating my processor as a single core now? On 11.2 it saw all 4 cores and the hyperthreading made it seem like I had 8 (obviously) but now it's only showing 1 core.
For the record I have a Toshiba A505-6034 with an Intel Core i7
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.
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
As this thread [URL]... reached over thousand posts, it's obvious that these freezes (which actually boils down to keyboard and mouse not being listened to by X server, so "not working") hit large numbers of Ubuntu users. As that thread is already very large and hard to read I'd like to advance a hypothesis here : This problem occurs only on multi-core CPUs.
I've installed 10.04 on two machines: and old box with a Duron and new one with quad core. The old box runs just fine with 10.04. The new one - you know Has anyone exeprienced this problem on a single core machine?
I am running CPU tests on a radio controller to determine max simultanious calls. A tool using top was developed so that we could get a good look at what exactly was happening on the process level, however we are mainly interested in one object running on the box.The box has a single core Celeron processsor running the Wind River Linux platform. The CPU usage from my object is frequently spiking over 100%. Doing some research online so far has led me to the fact that a multicore processor can do this however I have found no mention of a single core processor displaying this behavior.
Recently I was forced to "downgrade" my AMD64 Squeeze installation to 32 bit Squeeze. The installation was (obviously) made from scratch. Everything else seems to be working fine, but there is only one cpu core out of four detected. On AMD64 kernel all four cores were functional. Now what?
$ uname -srv Linux 2.6.32-5-686 #1 SMP Mon Jun 13 04:13:06 UTC 2011 $ cat /etc/debian_version 6.0.2 $ cat /proc/cpuinfo
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
I have plugins for viewing pdf files in both Opera and Firefox. Most pdf files opens embedded in the browser, just as I want. But there is some pdf files I am prompted to save before I can open, just as if the pdf is not recognized as a pdf ? A closer look shows that this pdf's are made using pdf-printers, drawing programs and other non-Adobe programs. It probably misses some Mime coding or other things that Adobe distiller puts into native pdf's ? How can I make the browser/system/plugin/acroread only care about the extension, and not the creator ?
I am looking to buy a laptop for my college years, so I would like to buy one that will serve me many years ahead. Currently the only laptop I have found is the System76 Serval laptop, but they do not ship to Europe.
Another laptops I have found are the Toshiba A505 series, but they are not currently supported by the latest version of Ubuntu.
I anyone knows of a good laptop (must have Corei7 processor and Nvidia/ATI powerful card fully supported by the proprietray drivers), please share your knowledge here.
I have installed Ubuntu10.04.1LTS in my Desktop amd64 computer. I also downloaded the same version for i386 processors and tried to install the OS for my HCL Pentium Dual Core T4300 @2.1Ghz 4GB RAM laptop, details of which are given in the following two screenshots: dscf0105.jpg and dscf0106.jpg I already have Debian Lenny 5.0.4 installed on the laptop dscf0104.jpg and the laptop works fine when I run the Debian OS or Knoppix liveCD image stored in the HDD of the laptop. We all know that the Ubuntu LTS live CD leads to the following option: Screenshot.jpg However, in my laptop the operation freezes before we can reach the above option. The screenshot explains the situation: dscf0107.jpg I know I could always use one of the alternate downloads and install the OS from it. But my point of contention is: where is the matter going wrong? Can't we use the graphical installer CD to do a CUI installation?
I am running Fedora 13 - 64-bit variety and using KDE as the gui. No real issues asides from machine not exactly flying, but then this is a mere core 2 duo 1.6 with 2 gigs of ram, so not unexpected...
When I run top I see 3 users indicated - which worries me somewhat... I am the only user on this machine.
I come from a Debian / Ubuntu /Gentoo knowledge-base and this laptop is a fresh install, encrypted partitions, temp has own partition (encrypted too) and obviously the firewall is on, with ssh service turned off and ssh access removed in the firewall....
is this 3 users in top normal, or have i managed to be hacked in the 3 - 4 days since I started the install ? In all this time I have been sitting behind a router when on the net.
Am I looking at a fresh install, or are there valid reasons for the extra users?
I just ran "users" in terminal and I show up 3 times - I have only logged in once, through the GUI and no extra access routes
I was wondering whether or not it is possible/advisable to install and run Snort on a single laptop with a wireless router (firewall enabled)? Does Snort require root privileges and are there any other issues one needs to be aware of when installing and running software like this?
I can't get Redhat (Fedora) to mount my usb Flashdrive. My windows O/S has no problem with my usb flashdrive. I can mount my CD Drive and my Floppy drive. My mouse is pluged into one of my usb slots and it works. What am I doing wrong.
i have installed bless hex editor on my fedora 14 laptop.However when i open it ,it shows "mono-core wants to install a font language code not matched: utf-8" i am not able to use bless hex editor properly.
I 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.
Assume 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)?.
I 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?
I own an Athlon II X4, with 4 physical cores, and opensuse 11.4 x86_64 is only recognizing 1 of them. Although, when i disable ACPI from the BIOS, i get all 4 cores showing on cpuinfo.
Code: Linux version 2.6.38.4-2-desktop (geeko@buildhost) (gcc version 4.5.1 20101208 [gcc-4_5-branch revision 167585] (SUSE Linux) ) #1 SMP PREEMPT 2011-04-26 17:30:28 +0200
It's known that with previous iterations, up to and including 11.2, with certain motherboards ( I can only speak for Asus/Abit ) a quad ( or duo ) core cpu can only be installed with acpi-off or similar options; this leads to only one core running in OpenSUSE, although the board itself declares 4 cores run.And this seems to mean that various other unimportant ( for a desktop ) acpi functions are affected, including the os system clock.
Typing top or cat /proc/cpuinfo always shows only one core, and although the computer is fine, it seems a pointless state of affairs. Googling shows various suggestions, including removing acpi=off or noapic in the boot options and substituting pci=nommconf, or changing the kernel to an SMP kernel ( which is probably out-of-date as advice now ); still, I can live with it in 11.2: I just wondered if 11.3 addresses this installation problem. Or will any future editions address it ?Whilst one can live with it, the initial impossibility of installing ( with no clue as to why it shan't install ) must have put off a deal of people from even going forward with OpenSUSE ( or any similarly affected distro ).
I have question about the UNIX sockets. my goal is to connect multiple sockets from a single client to a single server and keep them open...I'm not sure if that is possible to create or not. Do you have any suggestion or an example of code?
I've been thinking of going into opensuse for a long time and now with KDE 4.4 is finally out - I'm going to do it. The installation shouldn't be a problem but I wonder how I can upgrade to kde 4.4, since opensuse 11.2 will have 4.3 by default? I saw in the documentation to add these repos:
# Core packages: http://download.opensuse.org/reposit.../openSUSE_11.2 # Community: Index of /repositories/KDE:/KDE4:/Community/openSUSE_11.2_KDE4_Factory_Desktop # Playground: Index of /repositories/KDE:/KDE4:/Playground/openSUSE_11.2_KDE4_Factory_Desktop
whats the difference between core, community and playground? And isnt there "stable" repos for the KDE 4.4 release? And are there a repo with amarok 2.3 Beta?
I want to set up a PDC on my computer using Samba without LDAP, etc. The only thing I need is to share folders between the two ridiculous computers here. I got a 11.3 laptop and this 11.4 desktop. This is the /var/log/samba/log.smbd extract:
Code: [2011/06/11 08:29:35, 0] lib/fault.c:250(dump_core_setup) Unable to setup corepath for smbd: Permission denied [2011/06/11 08:29:35, 0] smbd/server.c:1134(main) smbd version 3.5.7-1.17.1-2505-SUSE-SL11.4-x86_64 started. Copyright Andrew Tridgell and the Samba Team 1992-2010 [2011/06/11 08:29:35.951937, 0] passdb/secrets.c:73(secrets_init) Failed to open /etc/samba/secrets.tdb [2011/06/11 08:29:35.954910, 0] passdb/secrets.c:73(secrets_init) Failed to open /etc/samba/secrets.tdb [2011/06/11 08:29:35.955027, 0] smbd/server.c:1234(main) ERROR: smbd can not open secrets.tdb
This is the /var/log/samba/log.nmbd extract: Code: [2011/06/11 08:27:48.682275, 0] nmbd/nmbd_become_lmb.c:395(become_local_master_stage2) Samba name server ANTARES is now a local master browser for workgroup XXXXXXXX.WORLD on subnet [2011/06/11 08:28:08.700572, 0] nmbd/nmbd_serverlistdb.c:343(write_browse_list) write_browse_list: Can't open file /var/lib/samba/browse.dat.. Error was Permission denied I have modified in Yast the User Authentication Source to smbpasswd and specified the correct path to the file...
This is the /etc/samba/smb.conf extract: Code: passdb backend = smbpasswd:/XXXXXXXX/smbpasswdfile I erased all the samba related configuration files, uninstalled samba cli/ser samba-yast cli/ser and reinstalled, reconfigured and still have same issue. It worked very well with 11.1... (I clean installed 11.4 yesterday). I thought take sources from samba, compile and then see if it works...
I was bugging around with my nvidia driver and while reading README.txt I saw the following:
"NVIDIA has noted that in some distibutions, i2c support is enabled. However, the Linux kernel module i2c-core.o (2.4) or i2c-core.ko (2.6), which provides the export infrastructure, was not shipped. In this case, you will need to build the i2c support module. For directions on how to build and install your kernel's i2c support, refer to your distribution's documentation for configuring, building, and installing the kernel and associated modules."
So I checked if I have i2c-core.ko and I saw that it is not present as a built module, but only as a source code. So, my question is, is there any reason that the module is not shipped with openSUSE 11.3 x86_64 (I use the kernel HEAD repository)? Actually, does it make sense to use this module if I want to monitor the temperature of my GPU with sensors? How can I compile only that module and install it?