Re: [Xen-devel] Soft lockup/Time went backwards in latest unstable

[Derek Murray <Derek.Murray@xxxxxxxxxxxx>]

On 23 Feb 2007, at 23:08, Keir Fraser wrote:

> You should be able to run a 3.0.3 dom0 on 3.0.4 Xen and vice versa. By
> trying both combinations you should be able to work out whether it  
> is the
> Xen upgrade or the Linux upgrade which introduces the problem.
It appears I was being hasty in blaming 3.0.4 for introducing the  
bug. I tested the following configurations:
Xen 3.0.3_0: works with 3.0.3 kernel (2.6.16.29-xen) and 3.0.4 kernel  
(2.6.16.33-xen). Fails with -unstable kernel (2.6.18).
Xen 3.0.4_1: works with 3.0.3 and 3.0.4 kernels. Fails with -unstable  
kernel.
Xen unstable: works with 3.0.3 and 3.0.4 kernels. Fails with - 
unstable kernel.
So, 3.0.3 and 3.0.4 work as distributed, but the latest -unstable is  
broken.
The reason I attributed the blame to 3.0.4 was because I had seen the  
same bug in -unstable during the 3.0.3-3.0.4 interregnum; however,  
this bug seems to have been fixed for the 3.0.4 release, and re- 
emerged since with the transition to 2.6.18.
Is there a pattern for how these bugs have been fixed in the past, so  
that I could go about trying to make a patch?
Regards,

Derek Murray.




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