i386/Xen domU kernels don't boot any more

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

Hello,
recent i386 Xen kernels don't boot any more, they fails to start init,
as can be seen here:
http://www-soc.lip6.fr/~bouyer/NetBSD-tests/xen/HEAD/
(I also tested a 201612200210Z kernel, with the same result)

balloon0 at xenbus0 id 0: Xen Balloon driver
balloon0: current reservation: 262144 KiB
xenbus: can't get state for device/suspend/event-channel (2)
balloon0: current reservation: 65536 pages => target: 65536 pages
ignore shutdown request: 
xenbus: can't get state for device/suspend/event-channel (2)
boot device: xbd0
root on md0a dumps on md0b
root file system type: ffs
kern.module.path=/stand/i386pae-xen/7.99.51/modules
warning: no /dev/console
uvm_fault(0xc0c648e0, 0xc0ea9000, 1) -> 0xe
Process (pid 1) got sig 11
panic: SPL NOT LOWERED ON TRAP EXIT

fatal breakpoint trap in supervisor mode
trap type 1 code 0 eip c0105424 cs 9 eflags 246 cr2 c0ea9018 ilevel 0 esp cd872f7c
curlwp 0xc1452980 pid 1 lid 1 lowest kstack 0xcd8702c0
Stopped in pid 1.1 (init) at    c0105424:       popl    %ebp
?(c05633b4,c0c6b5a0,c01049bf,cd872f98,cd872f98,c1452980,cd872f10,cd872f8c,c042c6
c8,c01049bf) at c0105424
uvm_fault(0xc1575ee8, 0x4489c000, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c0110f75 cs 9 eflags 10246 cr2 4489c031 ilevel 8 esp cd8727c8
curlwp 0xc1452980 pid 1 lid 1 lowest kstack 0xcd8702c0
kernel: supervisor trap page fault, code=0
Faulted in DDB; continuing...
?(c05633b4,c0c6b5a0,c01049bf,cd872f98,cd872f98,c1452980,cd872f10,cd872f8c,c042c6
c8,c01049bf) at c0105424
uvm_fault(0xc1575ee8, 0x4489c000, 1) -> 0xe
fatal page fault in supervisor mode
trap type 6 code 0 eip c0110f75 cs 9 eflags 10246 cr2 4489c031 ilevel 8 esp cd8727c8
curlwp 0xc1452980 pid 1 lid 1 lowest kstack 0xcd8702c0
kernel: supervisor trap page fault, code=0
Faulted in DDB; continuing...

and so on.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
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