Re: [Xen-devel] e008:[<ffff82c480122353>] check_lock+0x1b/0x45

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Wed, Jun 19, 2013 at 06:22:52PM +0100, Andrew Cooper wrote:
> On 19/06/13 18:01, Konrad Rzeszutek Wilk wrote:
> > On Wed, Jun 19, 2013 at 05:37:01PM +0100, Andrew Cooper wrote:
> >> On 19/06/13 17:06, Konrad Rzeszutek Wilk wrote:
> >>> Hey,
> >>>
> >>> It looks like one of the patches that went in Xen 4.1 blows up.
> >>>
> >>> This used to work over the weekend, so I can only surmise
> >>> it is one the three patches. This is with a debug=y build
> >>> (which has been working nicely for the last month or more).
> >>>
> >>> It looks like one of the patches that went in Xen 4.1 blows up.
> >>>
> >>> This used to work a day ago - that is c/s 23551 worked nicely.
> > And just to confirm, yes the same kernel but with cs 23551 boots
> > (just built it). Let me narrow down which of the c/s is at fault.
> >
> 
> There are only 3 changesets to choose from.  It can only really be
> 
> hg: 23552:d7ad3e2f1119
> git: df751b6da15afff1f87a68f63013dd96e9563047
> 
> "x86: fix ordering of operations in destroy_irq()".
> 
> Is it possible for your to run tests with the same dom0 kernel but 4.2
> or unstable around these changesets?  Unless it can be proved to only be
> a problem with 4.1, I suspect we may want to back out the change,
> especially given the proximity of 4.3
> 

I am not sure what is happening, but I redid the build and now I don't see
the crash. I am going to dig in this a bit more but if I cannot reproduce this
then please ignore me.

> ~Andrew

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