Comment 23 for bug 66900

Adding myself to the list as I see the same problem on a Toshiba Tecra A8:

kr@n428:~> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
stepping : 6
cpu MHz : 1000.000
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
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 pbe lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
bogomips : 3994.84

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
stepping : 6
cpu MHz : 1000.000
cache size : 4096 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
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 pbe lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
bogomips : 3990.09

Not sure whether it is the same issue but at least the phenomenon is the same (log file filling up with "APIC error on CPUx"). Seems to start only if the system is put to some load, though (launching Eclipse, VMWare or a database server).

Removing the ohci1394 module doesn't help, either:

[...]
[17183117.352000] APIC error on CPU1: 40(40)
[17183117.352000] APIC error on CPU0: 40(40)
[17183117.448000] APIC error on CPU1: 40(40)
[17183117.448000] APIC error on CPU0: 40(40)
[17183131.544000] ieee1394: Node removed: ID:BUS[0-00:1023] GUID[0000390000a62cac]
[17183195.636000] APIC error on CPU1: 40(40)
[17183195.636000] APIC error on CPU0: 40(40)
[17183195.708000] APIC error on CPU1: 40(40)
[17183195.708000] APIC error on CPU0: 40(40)
[...]

I don't know whether this is really causing any trouble or just being an "aesthetic" thing, but I would like to have getting it fixed anyhow. Kernel is 2.6.17-10-generic from Edgy.

Thanks,
Kristian