RE: [Xen-devel] Latest bk can NOT compile on x86_64

[David F Barrera <dfbp@xxxxxxxxxx>]

On Tue, 2005-05-31 at 12:32 -0700, Nakajima, Jun wrote:
> David F Barrera wrote:
> > OK. This is the first time that I've been able to build Xen on SLES 9
> > x86_64. When attempting to boot, Dom0 crashes. Although there is
> > already 
> > a defect open (Bugzilla #26) for a failure to boot Dom0 on x86_64 on
> > FC4, I am opening a new defect (Bugzilla #65) since the failures
> > appear different.
> > 
> > (XEN) Scrubbing Free RAM: ...........done.
> > (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
> > input to Xen). (XEN) CPU:    0
> > (XEN) EIP:    e030:[<0000000000000000>]
> > (XEN) EFLAGS: 0000000000010282
> > (XEN) rax: 00000000ffffffea   rbx: 00000000105f5000   rcx:
> > 0000000000000000 
> > rdx: 0000000000000000
> > (XEN) rsi: 0000000000000001   rdi: ffffffff804ebf40   rbp:
> > 0000000000000808 
> > rsp: ffffffff804ebf08
> > (XEN) r8:  0000000000000000   r9:  0000000000000000   r10:
> > 0000000000007ff0 
> > r11: 0000000000000282
> > (XEN) r12: 0000000000000000   r13: ffffffff805f4000   r14:
> > ffffffff80102000 
> > r15: ffffffff804ebfb0
> > (XEN) Xen stack trace from rsp=ffffffff804ebf08:
> > (XEN)    ffffffff80118d9d 0000000000000202 ffffffff80118da1
> > 000000000001e030 0000000000010282 ffffffff804ebf40 000000000000e02b
> > 00000000105f5808 (XEN)    0000000010101065 0000000000000000
> > ffffffff80115d08 0000000000000000 0000000000000000 ffffffff804d8080
> > ffffffff80 on CPU0: 
> > Domain 0 crashed!
> > ****************************************
> > 
> 
> This is different from the other ones, but we need more hints as I don't
> see this problem on our machines. For example, can you show the
> instructions around 0xffffffff80118d9d? Please do like
> 1. objdump -d vmlinux > out (in linux-2.6.11-xen0)
> 2. search ffffffff80118d9d in 'out'
> 3. cut and send the disassembled instructions around ffffffff80118d9d.
OK. Here they are:(ffffffff80118d9d is in the middle)

ffffffff80118d4f:       90                      nop
ffffffff80118d50:       48 b8 00 00 00 00 00    mov    $0x780000000000,%
rax
ffffffff80118d57:       78 00 00
ffffffff80118d5a:       48 8d 0c 38             lea    (%rax,%rdi,1),%
rcx
ffffffff80118d5e:       48 8b 15 1b 15 37 00    mov    3609883(%rip),%
rdx  # ffffffff8048a280 <phys_to_machine_mapping>
ffffffff80118d65:       48 89 e7                mov    %rsp,%rdi
ffffffff80118d68:       48 89 c8                mov    %rcx,%rax
ffffffff80118d6b:       81 e1 ff 0f 00 00       and    $0xfff,%ecx
ffffffff80118d71:       48 c1 e8 0c             shr    $0xc,%rax
ffffffff80118d75:       89 c0                   mov    %eax,%eax
ffffffff80118d77:       8b 04 82                mov    (%rdx,%rax,4),%
eax
ffffffff80118d7a:       48 89 74 24 08          mov    %rsi,0x8(%rsp)
ffffffff80118d7f:       be 01 00 00 00          mov    $0x1,%esi
ffffffff80118d84:       31 d2                   xor    %edx,%edx
ffffffff80118d86:       48 c1 e0 0c             shl    $0xc,%rax
ffffffff80118d8a:       48 09 c8                or     %rcx,%rax
ffffffff80118d8d:       48 89 04 24             mov    %rax,(%rsp)
ffffffff80118d91:       48 89 f0                mov    %rsi,%rax
ffffffff80118d94:       49 c7 c2 f0 7f 00 00    mov    $0x7ff0,%r10
ffffffff80118d9b:       0f 05                   syscall

ffffffff80118d9d:       85 c0                   test   %eax,%eax

ffffffff80118d9f:       79 0f                   jns    ffffffff80118db0
<xen_l1_entry_update+0x80>
ffffffff80118da1:       0f 0b                   ud2a
ffffffff80118da3:       03 41 3a                add    0x3a(%rcx),%eax
ffffffff80118da6:       80 ff ff                cmp    $0xff,%bh
ffffffff80118da9:       ff                      (bad)
ffffffff80118daa:       ff 35 00 66 66 90       pushq  -1872337408(%rip)
# ffffffff1077f3b0 <__start___xen_guest+0xffffffff10779a52>
ffffffff80118db0:       48 83 c4 18             add    $0x18,%rsp
ffffffff80118db4:       c3                      retq
ffffffff80118db5:       66                      data16
ffffffff80118db6:       66                      data16
ffffffff80118db7:       66                      data16
ffffffff80118db8:       90                      nop
ffffffff80118db9:       66                      data16
ffffffff80118dba:       66                      data16
ffffffff80118dbb:       66                      data16
ffffffff80118dbc:       90                      nop
ffffffff80118dbd:       66                      data16
ffffffff80118dbe:       66                      data16
ffffffff80118dbf:       90                      nop

ffffffff80118dc0 <allocate_empty_lowmem_region>:
ffffffff80118dc0:       41 57                   push   %r15
ffffffff80118dc2:       48 c1 e7 0c             shl    $0xc,%rdi
ffffffff80118dc6:       48 8d 47 ff             lea
0xffffffffffffffff(%rdi),%rax
ffffffff80118dca:       41 56                   push   %r14

> 
> Jun
> ---
> Intel Open Source Technology Center
> 
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> 
-- 
Regards,

David F Barrera
Linux Technology Center
Systems and Technology Group, IBM

"The wisest men follow their own direction. "
                                                        Euripides


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