Re: [Xen-ia64-devel] [Patch0/2] support config SPARSEMEM

[Alex Williamson <alex.williamson@xxxxxx>]

On Fri, 2007-02-02 at 01:19 +0900, Akio Takebe wrote:
> Hi,
> 
> These patches are for supporting domain config of SPARSEMEM.
> See the following thread.
> http://lists.xensource.com/archives/html/xen-ia64-devel/2007-01/msg00278.html
> 
> [1/2] change config SPARSEMEM
> [2/2] remove pfn_valid for supporting SPARSEMEM

Hi Akio,

   Dom0 boots with this, but booting a domU w/ the -xen kernel does bad
things:

Xen p2m: assign p2m table of [0x0000000000000000, 0x0000000100000000)
Xen p2m: to [0x0000000100000000, 0x0000000103ffc000) (65536 KBytes)
XENBUS: Device with no driver: device/console/0
Unable to handle kernel NULL pointer dereference (address 0000000000000000)
swapper[0]: Oops 11012296146944 [1]
Modules linked in:

Pid: 0, CPU 0, comm:              swapper
psr : 0000121008026010 ifs : 800000000000040b ip  : [<a0000001005010a1>]    Not 
tainted
ip is at __sync_single+0x61/0x1e0
unat: 0000000000000000 pfs : 800000000000038c rsc : 0000000000000008
rnat: 0000021008026010 bsps: a0000001000dac30 pr  : 0000000000019aa5
ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c0270033f
csd : 0000000000000000 ssd : 0000000000000000
b0  : a0000001005013e0 b6  : a00000010062e9a0 b7  : 0000000000000000
f6  : 000000000000000000000 f7  : 000000000000000000000
f8  : 000000000000000000000 f9  : 000000000000000000000
f10 : 000000000000000000000 f11 : 000000000000000000000
r1  : a0000001010ff400 r2  : 0000000000000030 r3  : a000000100cc3b98
r8  : e000000103a08928 r9  : 0000000000000000 r10 : 0000000000000000
r11 : 0000000000000000 r12 : a000000100cc3b80 r13 : a000000100cbc000
r14 : a000000100cc3ba0 r15 : e000000000000000 r16 : a000000100cc3ba8
r17 : a00000010116f400 r18 : 0000000000000c92 r19 : 0000000000649000
r20 : e000000005378000 r21 : a000000100f283e8 r22 : a000000100f283b8
r23 : e000000000000000 r24 : 00000000059c0000 r25 : 0000000000001000
r26 : 0000000000003fff r27 : 0000000000000008 r28 : 0000000000000000
r29 : 00001412082a6010 r30 : 8000000000000006 r31 : 0000000000000000

Call Trace:
 [<a00000010001d0c0>] show_stack+0x40/0xa0
                                sp=a000000100cc3730 bsp=a000000100cbd498
 [<a00000010001dd20>] show_regs+0x840/0x880
                                sp=a000000100cc3900 bsp=a000000100cbd440
 [<a000000100041520>] die+0x1c0/0x380
                                sp=a000000100cc3900 bsp=a000000100cbd3f0
 [<a000000100065e70>] ia64_do_page_fault+0x810/0x940
                                sp=a000000100cc3920 bsp=a000000100cbd3a0
 [<a000000100068840>] xen_leave_kernel+0x0/0x3c0
                                sp=a000000100cc39b0 bsp=a000000100cbd3a0
 [<a0000001005010a0>] __sync_single+0x60/0x1e0
                                sp=a000000100cc3b80 bsp=a000000100cbd348
 [<a0000001005013e0>] unmap_single+0xa0/0x220
                                sp=a000000100cc3b90 bsp=a000000100cbd310
 [<a000000100502b10>] swiotlb_unmap_single+0x270/0x320
                                sp=a000000100cc3ba0 bsp=a000000100cbd2d0
 [<a00000010006b4e0>] dma_unmap_single+0xa0/0xc0
                                sp=a000000100cc3ba0 bsp=a000000100cbd298
 [<a00000010062ebe0>] cciss_softirq_done+0x240/0x5a0
                                sp=a000000100cc3ba0 bsp=a000000100cbd248
 [<a0000001004ca680>] blk_done_softirq+0x240/0x2a0
                                sp=a000000100cc3ba0 bsp=a000000100cbd230
 [<a0000001000959b0>] __do_softirq+0x1b0/0x340
                                sp=a000000100cc3bb0 bsp=a000000100cbd1b0
 [<a000000100095c60>] do_softirq+0x120/0x240
                                sp=a000000100cc3bb0 bsp=a000000100cbd150
 [<a000000100095e00>] irq_exit+0x80/0xa0
                                sp=a000000100cc3bb0 bsp=a000000100cbd138
 [<a0000001006c49b0>] evtchn_do_upcall+0x1d0/0x320
                                sp=a000000100cc3bb0 bsp=a000000100cbd0a0
 [<a000000100068240>] xen_event_callback+0x380/0x3c0
                                sp=a000000100cc3bb0 bsp=a000000100cbd0a0
 [<a0000001005013e0>] unmap_single+0xa0/0x220
                                sp=a000000100cc3bb0 bsp=a000000100cbd0a0
 <0>Kernel panic - not syncing: Aiee, killing interrupt handler!
 (XEN) Domain 0 crashed: rebooting machine in 5 seconds.
(XEN) Domain0 halts the machine


-- 
Alex Williamson                             HP Open Source & Linux Org.


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