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Re: [Xen-devel] xen.git branch reorg / crash with 2.6.30-rc3 pv_ops dom0

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject: Re: [Xen-devel] xen.git branch reorg / crash with 2.6.30-rc3 pv_ops dom0
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Sun, 26 Apr 2009 17:51:08 +0300
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Sat, Apr 25, 2009 at 04:34:00PM -0700, Jeremy Fitzhardinge wrote:
> Pasi Kärkkäinen wrote:
> >On Thu, Apr 23, 2009 at 11:32:14AM -0700, Jeremy Fitzhardinge wrote:
> >  
> >>Pasi Kärkkäinen wrote:
> >>    
> >>>I'll try upgrading from dom0/hackery to xen-tip/next and see how it works
> >>>for me. 
> >>> 
> >>>      
> >>Thanks.
> >>
> >>    
> >
> >It seems latest tree crashes for me (happened yesterday, and also today, 
> >just rebuilt the latest commits):
> >http://pasik.reaktio.net/xen/pv_ops-dom0-debug/pv_ops-dom0-bootlog-26-xen331-linux-2.6.30-rc3-crash-no-highpte.txt
> >  
> 
> This is xen-tip/next?  Does master work any better?  How about running 
> as domU?
> 

Yep, it's xen-tip/next. I'll try xen-tip/master next.. 

-- Pasi

> Thanks,
>    J
> 
> >Zone PFN ranges:
> >  DMA      0x00000010 -> 0x00001000
> >  Normal   0x00001000 -> 0x000229fe
> >  HighMem  0x000229fe -> 0x00040000
> >Movable zone start PFN for each node
> >early_node_map[3] active PFN ranges
> >    0: 0x00000010 -> 0x0000009f
> >    0: 0x00000100 -> 0x00001167
> >    0: 0x00001268 -> 0x00040000
> >(XEN) d0:v0: unhandled page fault (ec=0003)
> >(XEN) Pagetable walk from c1268000:
> >(XEN)  L3[0x003] = 000000003c8f0001 000008f0
> >(XEN)  L2[0x009] = 000000003d276067 00001276 
> >(XEN)  L1[0x068] = 000000003d268061 00001268
> >(XEN) domain_crash_sync called from entry.S (ff19f70e)
> >(XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> >(XEN) ----[ Xen-3.3.1-11.fc11  x86_32p  debug=n  Not tainted ]----
> >(XEN) CPU:    0
> >(XEN) EIP:    e019:[<c088adae>]
> >(XEN) EFLAGS: 00000206   EM: 1   CONTEXT: pv guest
> >(XEN) eax: 00000000   ebx: 00800000   ecx: 00200000   edx: c1268000
> >(XEN) esi: 01268000   edi: c1268000   ebp: c086de5c   esp: c086de1c
> >(XEN) cr0: 8005003b   cr4: 000006f0   cr3: 3c85c000   cr2: c1268000
> >(XEN) ds: e021   es: e021   fs: e021   gs: e021   ss: e021   cs: e019
> >(XEN) Guest stack trace from esp=c086de1c:
> >
> >[root@dom0test linux-2.6-xen]# gdb ./vmlinux
> >(gdb) x/i 0xc086de1c
> >0xc086de1c <init_thread_union+3612>:    add    %al,(%eax)
> >
> >32b PAE dom0, 32b PAE hypervisor. 
> >
> >
> >  
> >>>Btw how does dom0 upstreaming look at the moment? Ingo sent pull request
> >>>about some changes, and those got merged, but how about the rest? 
> >>>      
> >>Ingo basically ignored all the Xen changes in the leadup to the merge 
> >>window, then stomped on my attempt to get them merged with Linus, which 
> >>was all pretty annoying.  It had the doubly-irritating side-effect of 
> >>casting doubt over the controversy-free domU changes, so they didn't get 
> >>merged in the merge window either; by the time Ingo got around to OKing 
> >>them, the window had closed.  So all that got merged in the end was the 
> >>must-have bug fixes.
> >>
> >>    
> >
> >Yeah.. :( I really hope next merge window will be better..
> >
> >  
> >>Linus isn't going to pull any more major functionality changes in the 
> >>-rc kernels, and certainly isn't going to make an exception for Xen.  So 
> >>we're stuck with waiting for the .31 merge window.
> >>
> >>    
> >
> >I think it might be a good idea to start sending the patches already now, 
> >so
> >they get enough review before the .31 merge window.. 
> >
> >-- Pasi
> >
> >_______________________________________________
> >Xen-devel mailing list
> >Xen-devel@xxxxxxxxxxxxxxxxxxx
> >http://lists.xensource.com/xen-devel
> >  
> 

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