Re: [Xen-devel] crash in is_xen_swiotlb_buffer

[Goncalo Gomes <Goncalo.Gomes@xxxxxxxxxxxxx>]

On Tue, 13 Mar 2012, Goncalo Gomes wrote:

> On Tue, 13 Mar 2012, Goncalo Gomes wrote:
> 
> > On Tue, 13 Mar 2012, Konrad Rzeszutek Wilk wrote:
> > 
> > > 
> > > On Mar 12, 2012 12:28 PM, "Goncalo Gomes" 
> > > <Goncalo.Gomes@xxxxxxxxxxxxx<mailto:Goncalo.Gomes@xxxxxxxxxxxxx>> wrote:
> > > >
> > > > I've compiled unstable c/s: 5d20d2f6ffed and linux 3.2.9 but I've been
> > > 
> > > Do you get similar issues with Xen 4.1?
> > 
> > Can't say I tried it, but I can give it a spin. Any specific tag?
> 
> As I cloned unstable from a local dir into a different dir in the 
> server to checkout 4.1.0, the server crashed again, which leads me to 
> think minimal dom0 stress may be just enough to reproduce it in my 
> environment. I'll be doing some more testing to see if I can find out 
> what it takes.
> 
> In any case, I've done some minimal testing with 4.1.0-branch, such as 
> having 10 instances of update-grub running in parallel, a find / -ls, 
> etc.
> 
> 4.1.0 seems to handle it well, AFAICT.
> 

Scratch that. 4.1.0 fell too. Attaching the entire boot log.

With 4.1.0 it appears that it takes more than just update-grub to make 
the server go belly-up, so I had a large data transfer in the 
background and a sequence of update-grub' commands being spawned into 
background in quick succession and that didn't take more than 3-5 
seconds.

Goncalo

Attachment: dt29-boot-4.1
Description: Text document

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