Re: [Xen-devel] pvgrub boot problems

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 03/27/2010 12:31 PM, M A Young wrote:
> On Sat, 27 Mar 2010, Pasi Kärkkäinen wrote:
>
> > About pygrub.. Michael reported pvgrub doesn't work either, it crashes..
> > it might be different issue though.
> It is a separate issue because xen-unstable:21078 fixes my pygrub 
> problem, but pvgrub still crashes.
> With pvgrub it gets as far as the boot menu, but crashes quickly when 
> it tries to boot the selection with the error below (this is 32-bit 
> pvgrub/guest  on 64-bit OS).
I see the same thing, though mostly with 64/64/64 xen/dom0/guest 
boots.   AFAIK Samuel has not been able to repro the problem, even when 
using my kernel and pvgrub images.  I sent him a complete image of my 
/boot; with luck that will work...
    J

>     Michael Young
>
> root (hd0,0)
> Error ENOENT when reading the backend path device/vkbd/0/backend
> Page fault at linear address 0x1c, eip 0x51c5e, regs 0x3ff5ff7c, sp 
> 0x3ff5fff0, our_sp 0x3ff5ff50, code 2
> Thread: kbdfront
> EIP: 51c5e, EFLAGS 10002.
> EBX: 746f6f72 ECX: 00000401 EDX: 00000000
> ESI: 3ff3fe98 EDI: 00000001 EBP: 3ff5ffb0 EAX: 00000000
> DS: e021 ES: e021 orig_eax: ffffffff, eip: 00051c5e
> CS: 1e019 EFLAGS: 00010002 esp: 3ff5fff0 ss: 37eb
> base is 0x3ff5ffb0 caller is 0x37eb
> base is 0x3ff5fff0 caller is 0x31ad
>
> 3ff5ffe0: 00 00 00 00 8f 37 00 00 30 00 00 00 40 f0 ff bf
> 3ff5fff0: 00 00 00 00 ad 31 00 00 94 fe f3 3f 00 00 00 00
> 3ff60000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 3ff60010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
> 3ff5ffa0: ff ff ff ff 5e 1c 05 00 19 e0 01 00 02 00 01 00
> 3ff5ffb0: f0 ff f5 3f eb 37 00 00 00 00 00 00 01 00 00 00
> 3ff5ffc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 3ff5ffd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
> 51c40: e5 8b 45 08 c7 40 1c 00 00 00 00 c7 40 20 00 00
> 51c50: 00 00 83 60 18 fe 5d c3 55 89 e5 8b 45 08 c7 40
> 51c60: 1c 00 00 00 00 c7 40 20 00 00 00 00 83 48 18 01
> 51c70: 5d c3 55 89 e5 53 83 ec 14 a1 e0 b1 94 00 8b 58
> Pagetable walk from virt 1c, base a74000:
>   L3 = 0000000119b68027 (0xa75000)  [offset = 0]
>    L2 = 0000000119b66067 (0xa77000)  [offset = 0]
>     L1 = 0000000000000000 [offset = 0]
>
>
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