[Xen-devel] CONFIG_XEN_COMPAT_030002 broken?

[Gerd Hoffmann <kraxel@xxxxxxx>]

  Hi,

$subject says all.  Running latest bits from the 3.0.2 testing tree,
trying to boot a 3.0.3 linux guest kernel with the compat option
enabled, doesn't boot on x86_64 (32bit works ok).  Kernel dies very
early at boot:

(XEN) ----[ Xen-3.0.2-3    Not tainted ]----
(XEN) CPU:    1
(XEN) RIP:    e033:[<ffffffff8010734a>]
(XEN) RFLAGS: 0000000000000246   CONTEXT: guest
(XEN) rax: 0000000000000000   rbx: ffffffff7fffffff   rcx: ffffffff8010734a
(XEN) rdx: 0000000000000000   rsi: 0000000000000001   rdi: ffffffff8041ff70
(XEN) rbp: ffffffff8041ff90   rsp: ffffffff8041ff10   r8:  0000000000000000
(XEN) r9:  0000000000000000   r10: 0000000000007ff0   r11: 0000000000000246
(XEN) r12: ffffffff8040c000   r13: 0000000000000000   r14: 0000000000000000
(XEN) r15: 0000000000000000   cr0: 000000008005003b   cr3: 0000000021bdc000
(XEN) ds: 0000   es: 0000   fs: 0000   gs: 0000   ss: e02b   cs: e033
(XEN) Guest stack trace from rsp=ffffffff8041ff10:
(XEN)    ffffffff8010734a 0000000000000246 0000000000000011
ffffffff8010734a
(XEN)    000000010000e030 0000000000010046 ffffffff8041ff58
000000000000e02b
(XEN)    0000000021bdbff8 0000000000000000 0000000000000101
ffffffff80116f9b
(XEN)    0000000000000005 0000000000021bdc ffffffff8040c000
0000000000000000
(XEN)    ffffffff8041ffb0 ffffffff80110424 0000000000000000
0000000000000000
(XEN)    ffffffff8041fff0 ffffffff804210e1 ffff800000000000
ffff804000000000
(XEN)    00000007ffffffff 0000000000000000 0000000000000000
0000000000000000
(XEN)    0000000000000000 0000000000000000

### (XEN) RIP:    e033:[<ffffffff8010734a>]
### (XEN) Guest stack trace from rsp=ffffffff8041ff10:
ffffffff80116f9b - func ffffffff80116f4a + 51 xen_pt_switch
ffffffff80110424 - func ffffffff80110357 + cd pda_init             -
call xen_pt_switch
ffffffff804210e1 - func ffffffff80421000 + e1 x86_64_start_kernel  -
call pda_init

-- 
Gerd Hoffmann <kraxel@xxxxxxx>
http://www.suse.de/~kraxel/julika-dora.jpeg

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