gettimeofday() goes backwards

gettimeofday() goes backwards

[Aradhya, Chinmaya Tm (STSD)]

Hi,

On a dual CPU Linux box with kernel version 2.4.9-e.62smp the value
returned by gettimeofday() goes backwards. This problem occurs only on
one of our systems and it doesn't occur on any other with the same
version of the kernel. I noticed this pecuiliar thing on the affected
system - There was too much difference in value of BogoMips b/w the two
processors. I am not sure whether this is related to the descrepency
seen in gettimeofday() o/p. Here is the cpuinfo details of the affected
system. 

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 5
model name      : Pentium II (Deschutes)
stepping        : 2
cpu MHz         : 449.240
cache size      : 512 KB
physical id     : 0
siblings        : 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 mmx fx
sr
bogomips        : 894.56

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 5
model name      : Pentium II (Deschutes)
stepping        : 2
cpu MHz         : 449.240
cache size      : 512 KB
physical id     : 0
siblings        : 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 mmx fx
sr
bogomips        : 697.95

Has any one come acrosss this problem and is there a fix for the same.


Thanks
Chinmaya

Re: gettimeofday() goes backwards

[David Mosberger]

Aradhya,

>>>>> On Wed, 11 May 2005 15:21:57 +0530, "Aradhya, Chinmaya Tm (STSD)" <chinmaya@hp.com> said:

  > model name : Pentium II (Deschutes)

Umh, linux-ia64 is for ia64-based systems (e.g., Integrity machines).
Please do not post x86-specific questions to this list.

Thanks,

	--david

Re: gettimeofday() goes backwards

[Arjan van de Ven]

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On Wed, 2005-05-11 at 15:21 +0530, Aradhya, Chinmaya Tm (STSD) wrote:
> Hi,

you sent this mail to TWO of the very wrong mailinglists for this. You
are not using an ia64 system so linux-ia64@ is very much off topic, and
you are not using a kernel.org kernel but an (old!) vendor kernel so
your mail is off topic for linux-kernel@ as well.


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