RE: [Xen-devel] Re: Panic on boot on Sun Blade 6270

["Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx>]

The only possibility I can see is changeset 18722 is missed from your build.
So you are really clone a CLEAN xen tree and do the build from scratch?

--jyh

>-----Original Message-----
>From: Dan Gora [mailto:dan.gora@xxxxxxxxx]
>Sent: Friday, March 12, 2010 12:01 PM
>To: Jiang, Yunhong
>Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
>Subject: Re: [Xen-devel] Re: Panic on boot on Sun Blade 6270
>
>On Thu, Mar 11, 2010 at 10:35 PM, Jiang, Yunhong
><yunhong.jiang@xxxxxxxxx> wrote:
>> Why it will fail on 0xffff828bfffff0e0 ? I try to build 19913 and seems it 
>> should be
>0xffff828bffffe0e0.
>> If you can paste your objdump output for init_apic_ldr_phys, maybe it will be
>helpful.
>
>Here is init_apic_ldr_phys from 'objdump -d xen-syms-3.4.3-rc4-pre':
>
>ffff828c80183d48 <init_apic_ldr_flat>:
>ffff828c80183d48:       55                      push   %rbp
>ffff828c80183d49:       48 89 e5                mov    %rsp,%rbp
>ffff828c80183d4c:       83 3d cd 73 09 00 00    cmpl
>$0x0,0x973cd(%rip)        # ffff828c8021b120 <x2apic_enabled>
>ffff828c80183d53:       74 4d                   je
>ffff828c80183da2 <init_apic_ldr_flat+0x5a>
>ffff828c80183d55:       ba 00 00 00 00          mov    $0x0,%edx
>ffff828c80183d5a:       b8 ff ff ff ff          mov    $0xffffffff,%eax
>ffff828c80183d5f:       b9 0e 08 00 00          mov    $0x80e,%ecx
>ffff828c80183d64:       0f 30                   wrmsr
>ffff828c80183d66:       b1 0d                   mov    $0xd,%cl
>ffff828c80183d68:       0f 32                   rdmsr
>ffff828c80183d6a:       48 89 c2                mov    %rax,%rdx
>ffff828c80183d6d:       81 e2 ff ff ff 00       and    $0xffffff,%edx
>ffff828c80183d73:       48 c7 c0 00 80 ff ff    mov    $0xffffffffffff8000,%rax
>ffff828c80183d7a:       48 21 e0                and    %rsp,%rax
>ffff828c80183d7d:       48 0d 28 7f 00 00       or     $0x7f28,%rax
>ffff828c80183d83:       8b 88 c8 00 00 00       mov    0xc8(%rax),%ecx
>ffff828c80183d89:       b8 00 00 00 01          mov    $0x1000000,%eax
>ffff828c80183d8e:       48 d3 e0                shl    %cl,%rax
>ffff828c80183d91:       48 09 d0                or     %rdx,%rax
>ffff828c80183d94:       ba 00 00 00 00          mov    $0x0,%edx
>ffff828c80183d99:       b9 0d 08 00 00          mov    $0x80d,%ecx
>ffff828c80183d9e:       0f 30                   wrmsr
>ffff828c80183da0:       eb 43                   jmp
>ffff828c80183de5 <init_apic_ldr_flat+0x9d>
>ffff828c80183da2:       b8 ff ff ff ff          mov    $0xffffffff,%eax
>ffff828c80183da7:       a3 e0 f0 ff ff 8b 82    mov    %eax,0xffff828bfffff0e0
>ffff828c80183dae:       ff ff
>ffff828c80183db0:       48 be d0 f0 ff ff 8b    mov    $0xffff828bfffff0d0,%rsi
>ffff828c80183db7:       82 ff ff
>ffff828c80183dba:       8b 16                   mov    (%rsi),%edx
>ffff828c80183dbc:       81 e2 ff ff ff 00       and    $0xffffff,%edx
>ffff828c80183dc2:       48 c7 c0 00 80 ff ff    mov    $0xffffffffffff8000,%rax
>ffff828c80183dc9:       48 21 e0                and    %rsp,%rax
>ffff828c80183dcc:       48 0d 28 7f 00 00       or     $0x7f28,%rax
>ffff828c80183dd2:       8b 88 c8 00 00 00       mov    0xc8(%rax),%ecx
>ffff828c80183dd8:       b8 00 00 00 01          mov    $0x1000000,%eax
>ffff828c80183ddd:       48 d3 e0                shl    %cl,%rax
>ffff828c80183de0:       48 09 d0                or     %rdx,%rax
>ffff828c80183de3:       89 06                   mov    %eax,(%rsi)
>ffff828c80183de5:       c9                      leaveq
>ffff828c80183de6:       c3                      retq
>
>I don't quite understand why we have such different addresses.  I'm
>thinking maybe I built it wrong or something.  I built it with debug
>set to 'y' in Config.mk, then just did 'make dist', copied the
>resultant 'dist' directory to the test machine and ran 'sh
>./install.sh' on the target machine, and rebooted with:
>
>title Xen-3.4.3-rc1.dan -- SUSE Linux Enterprise Server 11 -
>2.6.27.19-5 (xen).dan
>    root (hd0,0)
>    kernel /xen-3.4.3-rc4-pre.gz crashkernel=128M@16M iommu=1
>loglvl=all guest_loglvl=all console=vga,com1 com1=auto
>    module /vmlinuz-2.6.27.19-5-xen.dan root=/dev/dm-5
>resume=/dev/dm-2 splash=silent showopts console=ttyS0,115200 quiet
>    module /initrd-2.6.27.19-5-xen.dan
>
>
>> BTW, if SLES 11 works for you, why not continue that?
>
>ugh.. long story.  It works in the sense that it boots and can run
>VMs.  My problem is that I'm trying to get the board that our company
>makes to work in an HVM guest properly..  *something* is messing with
>my board's PCI bar registers and I cannot figure out what it is.  I
>added printks to all the kernel functions which touch the BAR
>registers and to the pciback driver as well, but neither of these is
>occurring, so I figured the problem is in qemu, but to test that I
>need to be able to compile it.  I thought that the easiest path there
>would simply to compile the latest stuff, but it panicked early in the
>hypervisor so I thought that I'd report it...
>
>thanks,
>dan

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