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Re: [Xen-devel] pvops dom0 work roadmap

To: M A Young <m.a.young@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] pvops dom0 work roadmap
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 19 Aug 2009 09:21:30 -0700
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On 08/19/09 08:27, M A Young wrote:
> On Tue, 18 Aug 2009, Jeremy Fitzhardinge wrote:
>>    * make sure rebase/master is fairly functional and somewhat stable
>>    * rename rebase/* to xen/*
>>    * use it as the baseline dom0 and domU kernel in xen-unstable
> I have had problems booting rebase/master on i686 for some time now.
> The most recent crash looks different, and might be a STACKPROTECTOR
> issue (which I just turned back on). The log ends

What happens before then?  What stage is it at?

> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
> input to Xen)
> (XEN) Freed 116kB init memory.
> (XEN) d0:v0: unhandled page fault (ec=0000)
> (XEN) Pagetable walk from 00000014:
> (XEN)  L3[0x000] = 000000001bc03001 00001c03
> (XEN)  L2[0x000] = 0000000000000000 ffffffff
> (XEN) domain_crash_sync called from entry.S (ff1b1cbe)
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> (XEN) ----[ Xen-3.4.1  x86_32p  debug=n  Not tainted ]----
> (XEN) CPU:    0
> (XEN) EIP:    e019:[<c0aaa9d0>]

What does this correspond to?

> (XEN) EFLAGS: 00000282   EM: 1   CONTEXT: pv guest
> (XEN) eax: 00000000   ebx: 00000000   ecx: 00000007   edx: 00000000
> (XEN) esi: c0ae739c   edi: c0a147b8   ebp: c0aa1fd4   esp: c0aa1fb8
> (XEN) cr0: 8005003b   cr4: 000006f0   cr3: 1bc02000   cr2: 00000014
> (XEN) ds: e021   es: e021   fs: e021   gs: e021   ss: e021   cs: e019
> (XEN) Guest stack trace from esp=c0aa1fb8:
> (XEN)    00000000 c0aaa9d0 0001e019 00010082 00000000 c0ae739c
> c0a1492c c0aa1ffc(XEN)    c0aa974f 00000000 00000000 00000000 00000000
> 00000000 00000000 c1c01000(XEN)    00000000 00000000 c0834676 c083467e
> c0aa9f32 c04053ad c04056bf c04059c2(XEN)    c0405bf1 c0405c95 c0405f6b
> c0405fec c04062c2 c04063e6 c0406a1f c0aaaa82(XEN)    c0aaaa8a c0834728
> c0834828 c0834859 c0408e6c c0408e7e c0408f07 c04090fc(XEN)    c0409141
> c0409208 c0409767 c0409ad3 c0409b18 c0409b2a c040a156 c040a79f(XEN)   
> c040a7c6 c040acc2 c0aab563 c0aab60b c084093f c0840a1d c0840c6b
> c040db7f(XEN) c0840fda c0841079 c0841099 c0aabcfc c0aabd04 c040e8f5
> c040eb1e c0aac573(XEN)    c0aad580 c0aad588 c04103b7 c04103c5 c041044b
> c0410459 c0aaf678 c0aaf68b(XEN)    c041174d c04117ea c0411b45 c0411bfe
> c0411c50 c0411c76 c0411f2f c041218d(XEN)    c04124c5 c04124f1 c0413760
> c0413bab c0413e46 c0413e50 c0414649 c0414651(XEN)    c0414659 c041477f
> c0414807 c0414816 c0414824 c041488f c083508f c0835218(XEN)    c0835279
> c0835294 c0835940 c0835a5c c0835b28 c0835cef c0aafe60 c0aafe68(XEN)   
> c0aafe7a c0aafe82 c0aafe8a c0aafe92 c0aafea4 c0aafeac c0aafed2
> c0aafeda(XEN) c0aaff4f c0aaff57 c0835f91 c083624a c08362e4 c0836876
> c0836911 c083695c(XEN)    c0836a56 c0836a5b c0836b5e c0836ba0 c0836ba5
> c0836baa c0836bc4 c0836cbb(XEN)    c0836d37 c0836de9 c0836df7 c0836e1c
> c0836e26 c0836e42 c0836eb1 c0836ebb(XEN)    c0836f1e c0836f23 c0836f28
> c0836f2d c0836f32 c0836f51 c0836f5d c0836f7e(XEN)    c0836f87 c0836f90
> c083708e c0837093 c08370b2 c08370e2 c0837152 c08371a9(XEN)    c08371ae
> c08373bd c0837428 c08374b8 c08374c4 c0837593 c08375a4 c083769d(XEN)
> Domain 0 crashed: rebooting machine in 5 seconds.


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