Results 1 to 8 of 8
  1. #1
    Join Date
    Aug 2004
    Posts
    326

    Question Kernel 2.6.14.2, somebody using on CentOS 3.5??

    I need to know how working this kernel version on CentOS 3.5 and I need to know how this kernel working on P4 WITH HT (Hyper-Threading) enabled...before some time I used kernel 2.6.13.4 and that kernel don`t see HT like server with TWO CPU`s...

    Thanks.

    sorry for my english.
    Last edited by gurika; 11-14-2005 at 05:21 PM.

  2. #2
    Join Date
    Sep 2005
    Location
    In canada
    Posts
    3,211
    Quote Originally Posted by gurika
    I need to know how working this kernel version on CentOS 3.5 and I need to know how this kernel working on P4 WITH HT (Hyper-Threading) enabled...before some time I used kernel 2.6.13.4 and that kernel don`t see HT like server with TWO CPU`s...

    Thanks.

    sorry for my english.
    Centos (i think any version) doesnt show HT enabled , or 2 cpus as RH or other distros do , so i think ur ht is enabled but it will not show up in Centos. Even Dual Xeons with HT show only 2 processors instead of 4.

  3. #3
    Join Date
    Aug 2004
    Posts
    326
    But I have few servers with CentOS 3.5 and with kernel 2.4 and on all look like I have 2 cpus because I have HT enabled, only on 2.6.13.4 I have this problem and I need to know is this better now in new version or not...

  4. #4
    Join Date
    Sep 2005
    Location
    In canada
    Posts
    3,211
    Quote Originally Posted by gurika
    But I have few servers with CentOS 3.5 and with kernel 2.4 and on all look like I have 2 cpus because I have HT enabled, only on 2.6.13.4 I have this problem and I need to know is this better now in new version or not...

    So i guess new centos doesnt have that feature or maybe ur server is not ht enabled?

  5. #5
    Join Date
    Mar 2003
    Location
    California USA
    Posts
    13,261
    2.6 kernel does not show ht correctly sometimes. This is most likely due to teh changes for the exploit that was found in ht
    Steven Ciaburri | Proactive Linux Server Management - Rack911.com
    System Administration Extraordinaire | Follow us on twitter:@Rack911Labs
    Managed Servers (AS62710), Server Management, and Security Auditing.
    www.HostingSecList.com - Security notices for the hosting community.

  6. #6
    Join Date
    Mar 2002
    Location
    St. Louis, MO
    Posts
    1,378
    I have it on CentOS it shows it, 2 CPUS with HT, 2.6.14 and 14.1 maybe I should try a .2

  7. #7
    Join Date
    Mar 2003
    Location
    California USA
    Posts
    13,261
    root@server1 [/usr/src/linux-2.6.14.2]# cat .config | grep -i smp
    CONFIG_SMP=y
    CONFIG_X86_FIND_SMP_CONFIG=y
    CONFIG_X86_SMP=y
    root@server1 [/usr/src/linux-2.6.14.2]# cat /proc/cpuinfo
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Intel(R) Pentium(R) 4 CPU 3.00GHz
    stepping : 9
    cpu MHz : 2999.827
    cache size : 512 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 1
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
    bogomips : 6005.85

    root@server1 [/usr/src/linux-2.6.14.2]#
    Steven Ciaburri | Proactive Linux Server Management - Rack911.com
    System Administration Extraordinaire | Follow us on twitter:@Rack911Labs
    Managed Servers (AS62710), Server Management, and Security Auditing.
    www.HostingSecList.com - Security notices for the hosting community.

  8. #8
    Join Date
    Mar 2002
    Location
    St. Louis, MO
    Posts
    1,378
    Heres mine

    [/boot]# cat config-2.4.16 | grep -i smp
    # CONFIG_X86_BIGSMP is not set
    CONFIG_SMP=y
    CONFIG_X86_FIND_SMP_CONFIG=y
    CONFIG_X86_SMP=y

    processor : 0
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Intel(R) XEON(TM) CPU 2.20GHz
    stepping : 4
    cpu MHz : 2196.660
    cache size : 512 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 1
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
    bogomips : 4400.21

    processor : 1
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Intel(R) XEON(TM) CPU 2.20GHz
    stepping : 4
    cpu MHz : 2196.660
    cache size : 512 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 1
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
    bogomips : 4392.86

    processor : 2
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Intel(R) XEON(TM) CPU 2.20GHz
    stepping : 4
    cpu MHz : 2196.660
    cache size : 512 KB
    physical id : 3
    siblings : 2
    core id : 3
    cpu cores : 1
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
    bogomips : 4392.88

    processor : 3
    vendor_id : GenuineIntel
    cpu family : 15
    model : 2
    model name : Intel(R) XEON(TM) CPU 2.20GHz
    stepping : 4
    cpu MHz : 2196.660
    cache size : 512 KB
    physical id : 3
    siblings : 2
    core id : 3
    cpu cores : 1
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 2
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
    bogomips : 4392.87

    [/boot]# cat /etc/redhat-release
    CentOS release 3.5 (Final)

  9. Newsletters

    Subscribe Now & Get The WHT Quick Start Guide!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •