Re: PROBLEM: cannot get stable system since 2.6.28 kernel

[Philippe Grenard <philippe.grenard@laposte.net>]

On Friday 13 February 2009 19:56:54 Len Brown wrote:
> dmesg -- assuming you can boot far enough to capture it,
> may be helpful.
>
> also, disabling PREEMPT may be interesting to try.
>
> cheers,
> --
> Len Brown, Intel Open Source Technology Center

difference between the two /proc/cpuinfos shows this : 
especially "cpu cores" and "cpuid level" are quite different : does this may be 
some hint ?


--- proc_cpuinfo_2.6.27.10      2009-02-13 21:28:09.000000000 +0100
+++ proc_cpuinfo_2.6.29-rc4_test1       2009-02-13 21:28:00.000000000 +0100
@@ -4,20 +4,20 @@                                                          
 model          : 23                                                       
 model name     : Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz          
 stepping       : 10                                                       
-cpu MHz                : 2999.632                                         
+cpu MHz                : 2999.773                                         
 cache size     : 6144 KB                                                  
 physical id    : 0                                                        
 siblings       : 2                                                        
 core id                : 0                                                
-cpu cores      : 1                                                        
+cpu cores      : 2
 apicid         : 0
 initial apicid : 0
 fpu            : yes
 fpu_exception  : yes
-cpuid level    : 2
+cpuid level    : 13
 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 s
se sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts rep_good nopl pni 
monitor ds_cpl vmx smx est tm2 ssse3 cx16
xtpr sse4_1 lahf_lm
-bogomips       : 5999.26
+flags          : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr s
se sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good 
pni dtes64 monitor ds_cpl vmx smx est
tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm tpr_shadow vnmi flexpriority
+bogomips       : 5999.54
 clflush size   : 64
 cache_alignment        : 64
 address sizes  : 36 bits physical, 48 bits virtual
@@ -29,20 +29,20 @@
 model          : 23
 model name     : Intel(R) Core(TM)2 Duo CPU     E8400  @ 3.00GHz
 stepping       : 10
-cpu MHz                : 2999.632
+cpu MHz                : 2999.773
 cache size     : 6144 KB
 physical id    : 0
 siblings       : 2
-core id                : 0
-cpu cores      : 1
+core id                : 1
+cpu cores      : 2
 apicid         : 1
 initial apicid : 1
 fpu            : yes
 fpu_exception  : yes
-cpuid level    : 2
+cpuid level    : 13
 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 s
se sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts rep_good nopl pni 
monitor ds_cpl vmx smx est tm2 ssse3 cx16
xtpr sse4_1 lahf_lm
-bogomips       : 8398.69
+flags          : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr s
se sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good 
pni dtes64 monitor ds_cpl vmx smx est
tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm tpr_shadow vnmi flexpriority
+bogomips       : 5999.07
 clflush size   : 64
 cache_alignment        : 64
 address sizes  : 36 bits physical, 48 bits virtual