Re: Timer ISR/0: Time went backwards

[David F Barrera <dfbp@us.ibm.com>]

This is a know issue:

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=195

Ted Kaczmarek wrote:

>On Fri, 2005-10-07 at 10:03 -0400, Ted Kaczmarek wrote:
>  
>
>>###############################################
>>changeset:   7234:bd37123974b2
>>Centos 4.1 dom0, Tyan 2462 SMP, 8k kernel stack
>>###############################################
>>
>>7 UP guests, have 1 very fat guest(1200 megs, running tomcat4,
>>postgresql, and opennms unstable) domain1, issuing 
>>xm save domain1;xm restore domain1
>>
>>saw these log messages.
>>
>>XEN) (file=grant_table.c, line=940) Grant unref rd(13) ld(0) frm(1a8cd)
>>flgs(1).
>>(XEN) (file=grant_table.c, line=940) Grant unref rd(13) ld(0) frm(1a614)
>>flgs(1).
>>
>>
>>DomU's exceeding 24 hours of uptime, other than issues related to load
>>on dom0 things are behaving rather well.
>>
>>Where can a user obtain docs on the grant tables by the way?
>>Is the source the only present place?
>>
>>
>>Regards
>>Ted
>>
>>
>>_______________________________________________
>>    
>>
>Within seconds of setting this a total melt down :-(
>
>A couple hundred or so of these on the console.
>
>Timer ISR/0: Time went backwards: delta=-9101039 cpu_delta=10898961
>shadow=89150287265250 off=9333682407 processed8 0: 89159610048608
> 1: 89159630000000
>Timer ISR/0: Time went backwards: delta=-9144937 cpu_delta=10855063
>shadow=89150287265250 off=9343638515 processed8 0: 89159620048608
> 1: 89159640000000
>Timer ISR/0: Time went backwards: delta=-8707693 cpu_delta=11292307
>shadow=89150287265250 off=9354075736 processed8 0: 89159630048608
> 1: 89159650000000
>
>
>You guys putting any gremlins in this code :-)
>
>Regards,
>Ted
>
>
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>  
>