[NTLUG:Discuss] possible processor problems

Tue Feb 14 18:31:34 CST 2006

Greetings.

I have 2 dual processor servers with Xeon processors on Supermicro
motherboards.  It appears that one of the servers has lost a processor.  I
am not positive, however, since I am running different versions of linux on
each server.

The server that appears to be less one processor is running Fedora Core 4.
The server that appears correct is running RHES3.  I guess I want to make
sure Fedora Core 4 reports the correct number of processors.

Below is the >>uname -r<< and grepped message log files after a reboot.  The
dmesg log file doesn't illuminate the problem any, except the server with
the problem indicates that the Xeon processors are Lindhurst.  Again, I
don't know if that makes any difference.

Please forgive the length of this email.

Thanks as always for your help.

Monty

>>Questionable server<<

Linux  2.6.13-1.1526_FC4smp #1 SMP Wed Sep 28 19:30:04 EDT 2005 i686 i686
i386 GNU/Linux

Feb 14 09:03:33  kernel: Initializing CPU#0
Feb 14 09:03:33  kernel: CPU 0 irqstacks, hard=c043b000 soft=c041b000
Feb 14 09:03:34  kernel: CPU: Trace cache: 12K uops, L1 D cache: 16K
Feb 14 09:03:34  kernel: CPU: L2 cache: 1024K
Feb 14 09:03:34  kernel: CPU: Physical Processor ID: 0
Feb 14 09:03:34  kernel: Intel machine check reporting enabled on CPU#0.
Feb 14 09:03:34  kernel: CPU0: Intel P4/Xeon Extended MCE MSRs (24)
available
Feb 14 09:03:34  kernel: CPU0: Thermal monitoring enabled
Feb 14 09:03:34  kernel: CPU0: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
Feb 14 09:03:34  kernel: CPU 1 irqstacks, hard=c043c000 soft=c041c000
Feb 14 09:03:34  kernel: Initializing CPU#1
Feb 14 09:03:34  kernel: CPU: Trace cache: 12K uops, L1 D cache: 16K
Feb 14 09:03:34  kernel: CPU: L2 cache: 1024K
Feb 14 09:03:34  kernel: CPU: Physical Processor ID: 3
Feb 14 09:03:34  kernel: Intel machine check reporting enabled on CPU#1.
Feb 14 09:03:34  kernel: CPU1: Intel P4/Xeon Extended MCE MSRs (24)
available
Feb 14 09:03:34  kernel: CPU1: Thermal monitoring enabled
Feb 14 09:03:34  kernel: CPU1: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
Feb 14 09:03:34  kernel: checking TSC synchronization across 2 CPUs: passed.
Feb 14 09:03:34  kernel: Brought up 2 CPUs
Feb 14 10:27:58  kernel: Initializing CPU#0
Feb 14 10:27:58  kernel: CPU 0 irqstacks, hard=c043b000 soft=c041b000
Feb 14 10:27:58  kernel: CPU: Trace cache: 12K uops, L1 D cache: 16K
Feb 14 10:27:58  kernel: CPU: L2 cache: 1024K
Feb 14 10:27:58  kernel: CPU: Physical Processor ID: 0
Feb 14 10:27:58  kernel: Intel machine check reporting enabled on CPU#0.
Feb 14 10:27:58  kernel: CPU0: Intel P4/Xeon Extended MCE MSRs (24)
available
Feb 14 10:27:58  kernel: CPU0: Thermal monitoring enabled
Feb 14 10:27:58  kernel: CPU0: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
Feb 14 10:27:59  kernel: CPU 1 irqstacks, hard=c043c000 soft=c041c000
Feb 14 10:27:59  kernel: Initializing CPU#1
Feb 14 10:27:59  kernel: CPU: Trace cache: 12K uops, L1 D cache: 16K
Feb 14 10:27:59  kernel: CPU: L2 cache: 1024K
Feb 14 10:27:59  kernel: CPU: Physical Processor ID: 3
Feb 14 10:27:59  kernel: Intel machine check reporting enabled on CPU#1.
Feb 14 10:27:59  kernel: CPU1: Intel P4/Xeon Extended MCE MSRs (24)
available
Feb 14 10:27:59  kernel: CPU1: Thermal monitoring enabled
Feb 14 10:27:59  kernel: CPU1: Intel(R) Xeon(TM) CPU 3.00GHz stepping 01
Feb 14 10:27:59  kernel: checking TSC synchronization across 2 CPUs: passed.
Feb 14 10:27:59  kernel: Brought up 2 CPUs

>>known good server<<

Linux  2.4.21-20.ELsmp #1 SMP Wed Aug 18 20:46:40 EDT 2004 i686 i686 i386
GNU/Linux

Feb 14 17:52:49  kernel: CPU 0 (0x0000) enabledProcessor #0 Pentium 4(tm)
XEON(tm) APIC version 20
Feb 14 17:52:49  kernel: CPU 1 (0x0600) enabledProcessor #6 Pentium 4(tm)
XEON(tm) APIC version 20
Feb 14 17:52:49  kernel: CPU 2 (0x0100) enabledProcessor #1 Pentium 4(tm)
XEON(tm) APIC version 20
Feb 14 17:52:49  kernel: CPU 3 (0x0700) enabledProcessor #7 Pentium 4(tm)
XEON(tm) APIC version 20
Feb 14 17:52:49  kernel: 4 CPUs total
Feb 14 17:52:49  kernel: Enabling the CPU's according to the ACPI table
Feb 14 17:52:49  kernel: Initializing CPU#0
Feb 14 17:52:49  kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Feb 14 17:52:49  kernel: CPU: L2 cache: 512K
Feb 14 17:52:49  kernel: CPU: Physical Processor ID: 0
Feb 14 17:52:49  kernel: Intel machine check reporting enabled on CPU#0.
Feb 14 17:52:49  kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Feb 14 17:52:49  kernel: CPU: L2 cache: 512K
Feb 14 17:52:49  kernel: CPU: Physical Processor ID: 0
Feb 14 17:52:49  kernel: Intel machine check reporting enabled on CPU#0.
Feb 14 17:52:49  kernel: CPU0: Intel(R) Xeon(TM) CPU 2.66GHz stepping 05
Feb 14 17:52:49  kernel: per-CPU timeslice cutoff: 1463.11 usecs.
Feb 14 17:52:49  kernel: enabled ExtINT on CPU#0
Feb 14 17:52:49  kernel: Initializing CPU#1
Feb 14 17:52:49  kernel: masked ExtINT on CPU#1
Feb 14 17:52:49  kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Feb 14 17:52:49  kernel: CPU: L2 cache: 512K
Feb 14 17:52:49  kernel: ACPI tables and CPU MSR values mismatch about cpu
number
Feb 14 17:52:49  kernel: CPU: Physical Processor ID: 3
Feb 14 17:52:49  kernel: Intel machine check reporting enabled on CPU#1.
Feb 14 17:52:49  kernel: CPU1: Intel(R) Xeon(TM) CPU 2.66GHz stepping 05
Feb 14 17:52:49  kernel: Initializing CPU#2
Feb 14 17:52:49  kernel: masked ExtINT on CPU#2
Feb 14 17:52:49  kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Feb 14 17:52:49  kernel: CPU: L2 cache: 512K
Feb 14 17:52:49  kernel: CPU: Physical Processor ID: 0
Feb 14 17:52:49  kernel: Intel machine check reporting enabled on CPU#2.
Feb 14 17:52:49  kernel: CPU2: Intel(R) Xeon(TM) CPU 2.66GHz stepping 05
Feb 14 17:52:49  kernel: Initializing CPU#3
Feb 14 17:52:49  kernel: masked ExtINT on CPU#3
Feb 14 17:52:49  kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Feb 14 17:52:49  kernel: CPU: L2 cache: 512K
Feb 14 17:52:49  kernel: CPU: Physical Processor ID: 3
Feb 14 17:52:49  kernel: Intel machine check reporting enabled on CPU#3.
Feb 14 17:52:49  kernel: CPU3: Intel(R) Xeon(TM) CPU 2.66GHz stepping 05
Feb 14 17:52:49  kernel: ..... CPU clock speed is 2666.0648 MHz.
Feb 14 17:52:49  kernel: CPU0<T0:1333024,T1:1066416,D:2,S:266606,C:1333030>
Feb 14 17:52:49  kernel: CPU1<T0:1333024,T1:799808,D:4,S:266606,C:1333030>
Feb 14 17:52:49  kernel: CPU2<T0:1333024,T1:533184,D:22,S:266606,C:1333030>
Feb 14 17:52:49  kernel: CPU3<T0:1333024,T1:266592,D:8,S:266606,C:1333030>
Feb 14 17:52:50  kernel: mapping CPU#0's runqueue to CPU#2's runqueue.
Feb 14 17:52:50  kernel: mapping CPU#1's runqueue to CPU#3's runqueue.