<div dir="ltr">Hi Agile <br><br> There's no non SMP kernel in CentOS 5.x (check out: <a href="http://wiki.centos.org/FAQ/CentOS5#head-d70935212ce3b7b072b0075c1807a4bd3ea175b7">http://wiki.centos.org/FAQ/CentOS5#head-d70935212ce3b7b072b0075c1807a4bd3ea175b7</a>). <br>
dmesg boot output (taken from /var/log/dmesg) shows the following lines: <br>Linux version 2.6.18-92.1.22.el5 (<a href="mailto:mockbuild@builder16.centos.org">mockbuild@builder16.centos.org</a>) (gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)) #1 SMP Tue Dec 16 12:03:43 EST<br>
<br>and ... <br><br>found SMP MP-table at 000fe200<br>Memory for crash kernel (0x0 to 0x0) notwithin permissible range<br>disabling kdump<br>Using x86 segment limits to approximate NX protection<br>On node 0 totalpages: 1048576<br>
DMA zone: 4096 pages, LIFO batch:0<br> Normal zone: 225280 pages, LIFO batch:31<br> HighMem zone: 819200 pages, LIFO batch:31<br>DMI 2.4 present.<br>Using APIC driver default<br>Intel MultiProcessor Specification v1.4<br>
Virtual Wire compatibility mode.<br>OEM ID: Product ID: APIC at: 0xFEE00000<br>Processor #0 6:15 APIC version 20<br>Enabling APIC mode: Flat. Using 0 I/O APICs<br>BIOS bug, no explicit IRQ entries, using default mptable. (tell your hw vendor)<br>
Processors: 1<br>Allocating PCI resources starting at d2000000 (gap: d0000000:20000000)<br>Detected 2400.268 MHz processor.<br>Built 1 zonelists. Total pages: 1048576<br>Kernel command line: ro root=LABEL=/ acpi=off<br>mapped APIC to ffffd000 (fee00000)<br>
Enabling fast FPU save and restore... done.<br>Enabling unmasked SIMD FPU exception support... done.<br>Initializing CPU#0<br>CPU 0 irqstacks, hard=c074c000 soft=c072c000<br>PID hash table entries: 4096 (order: 12, 16384 bytes)<br>
Console: colour VGA+ 80x25<br>Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)<br>Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)<br>Memory: 3353184k/4194304k available (2097k kernel code, 40176k reserved, 877k data, 228k init, 2477052k highmem)<br>
Checking if this processor honours the WP bit even in supervisor mode... Ok.<br>Calibrating delay using timer specific routine.. 4802.07 BogoMIPS (lpj=2401035)<br>Security Framework v1.0.0 initialized<br>SELinux: Initializing.<br>
SELinux: Starting in permissive mode<br>selinux_register_security: Registering secondary module capability<br>Capability LSM initialized as secondary<br>Mount-cache hash table entries: 512<br>CPU: After generic identify, caps: bfebfbff 20000000 00000000 00000000 0000e3bd 00000000 00000001<br>
CPU: After vendor identify, caps: bfebfbff 20000000 00000000 00000000 0000e3bd 00000000 00000001<br>monitor/mwait feature present.<br>using mwait in idle threads.<br>CPU: L1 I cache: 32K, L1 D cache: 32K<br>CPU: L2 cache: 4096K<br>
CPU: Physical Processor ID: 0<br>CPU: Processor Core ID: 0<br>CPU: After all inits, caps: bfebf3ff 20000000 00000000 00000940 0000e3bd 00000000 00000001<br>Intel machine check architecture supported.<br>Intel machine check reporting enabled on CPU#0.<br>
Checking 'hlt' instruction... OK.<br>SMP alternatives: switching to UP code<br>Freeing SMP alternatives: 14k freed<br>CPU0: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping 0b<br>Total of 1 processors activated (4802.07 BogoMIPS).<br>
Brought up 1 CPUs<br>.<br>.<br>.<br>.<br>.<br><br> Unfortunately I still have only 1 core used ... <br><br><br><br><br>--<br>TIA <br>Paolo <br><br><br><br><br><div class="gmail_quote">On Tue, Feb 3, 2009 at 1:12 PM, Agile Aspect <span dir="ltr"><<a href="mailto:agile.aspect@gmail.com">agile.aspect@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">Paolo Supino wrote:<br>
> Hi Peter<br>
><br>
> I tried that and it the result is the same: Linux only finds,<br>
> initializes and uses only 1 core ... :-( Is there anything else I can<br>
> try to have Linux initialize all 4 cores?<br>
><br>
</div>You're probably booting the single CPU kernel.<br>
<br>
Try booting the kernel ending with "-ELsmp".<br>
<br>
<br>
--<br>
Article. VI. Clause 3 of the constitution of the United States states:<br>
<br>
"The Senators and Representatives before mentioned, and the Members of<br>
the several State Legislatures, and all executive and judicial Officers,<br>
both of the United States and of the several States, shall be bound by<br>
Oath or Affirmation, to support this Constitution; but no religious Test<br>
shall ever be required as a Qualification to any Office or public Trust<br>
under the United States."<br>
<div><div></div><div class="Wj3C7c"><br>
<br>
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