[Xen-devel] Re: dom0cut script patches

["Kazuo Moriwaka" <moriwaka@xxxxxxxxx>]

Hi,

I fixed valid-mfn checking bug, and make some cleanup.
I attach a patch.
You can get tarballs at there:
http://people.valinux.co.jp/~moriwaka/dumpread/dumpread-20060609.tar.gz
http://people.valinux.co.jp/~moriwaka/dumpread/libelf-0.1.0.tar.gz

On 6/5/06, Kazuo Moriwaka <moriwaka@xxxxxxxxxxxxx> wrote:
> Hi,
>
> dom0cut script now support to extract xen hypervisor image
> from kdump's whole-machine dump.
> It extract xen image with idle domain's pagetable.
> Now it copies register info from kdump-dump header.
> If these behaviors are not good, please tell me.
>
> I'll attach the patch, and you can get tarball from following:
> http://people.valinux.co.jp/~moriwaka/dumpread/dumpread-20060605.tar.gz
>
> sample session is following:
> ------------------------------------------------------------------------
> $ ./dom0cut_x86_32.py -telf -f --target=xen -dvmcore -oxencore
> -xxen-syms -vvmlinux
> vmcore doesn't have mfn 0xa0, the page is filled with '\0'
> vmcore doesn't have mfn 0xa1, the page is filled with '\0'
> ...
> vmcore doesn't have mfn 0xfec01, the page is filled with '\0'
> vmcore doesn't have mfn 0xfee00, the page is filled with '\0'
> $ gdb xen-syms xencore
> GNU gdb 6.2.1
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i686-pc-linux-gnu"...Using host
> libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
>
> #0  0xc011f586 in ?? ()
> (gdb) p/x idle_vcpu
> $1 = {0xff1d7080, 0xffbf8080, 0x0 <repeats 30 times>}
> (gdb) p/x idle_vcpu[0]
> $2 = 0xff1d7080
> (gdb) p/x *idle_vcpu[0]
> $3 = {vcpu_id = 0x0, processor = 0x0, vcpu_info = 0x0, domain = 0xffbfc080,
>   next_in_list = 0xffbf8080, timer = {expires = 0x0, cpu = 0x0,
>     function = 0xff10f840, data = 0xff1d7080, heap_offset = 0x0,
>     killed = 0x0}, sleep_tick = 0x9ef, poll_timer = {expires = 0x0,
> ...
> ------------------------------------------------------------------------
>
> regards,
> --
> Kazuo Moriwaka

--
Kazuo Moriwaka

Attachment: dumpread.patch.gz
Description: GNU Zip compressed data

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