Hi,
Can you tell me the base version of the qemu?
the postcopy patches make some conflicts on the qemu which I clone from the git
Thanks!
Tommy
From: Isaku Yamahata
Date: 2012-01-05 20:18
To: Tommy
CC: t.hirofuchi; qemu-devel; kvm; satoshi.itoh
Subject: Re: [Qemu-devel]回??: [PATCH 2/2] umem: chardevice for kvm postcopy
Hmm, this sounds like you haven't specified -postcopy option at the
incoming qemu.
How did you start incoming qemu?
On Thu, Jan 05, 2012 at 07:10:42PM +0800, Tommy wrote:
> After I use this series of patches, but the migration failed.
> 2, I start migrate -d -p -n tcp:xxx:4444 on the outgoing node
> 2, on the incoming part, the qemu get stuck and migration failed
> the destnation can not typing any more
>
> today I found it's just at qemu_loadvm_state, just after the while loop ,maybe
> in cpu_synchronize_all_post_init
> I think there is some problems with qemu side for it doesn't get to the umem
> part
> I'm not sure about the problem
> do you have some suggestion?
> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
> Tommy
>
> From: Isaku Yamahata
> Date: 2012-01-05 18:48
> To: thfbjyddx
> CC: t.hirofuchi; qemu-devel; kvm; satoshi.itoh
> Subject: Re: [Qemu-devel] ??: [PATCH 2/2] umem: chardevice for kvm postcopy
> On Thu, Jan 05, 2012 at 12:08:50PM +0800, thfbjyddx wrote:
> > hi,
> > I've tried to use this patch,
>
> Oh great! Can we share your results?
>
>
> > but it doesn't work for compiling error on
> >
> > page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vmf->address);//vmf->
> > virtual_address?
> >
> > I guess it's for the wrong kernel version?
> > can you give me some detail about this or any clue?
> > 3x
>
> Thank you for report. The following should fix.
> It depends on kernel configuration. My config didn't catch it.
>
> diff --git a/drivers/char/umem.c b/drivers/char/umem.c
> index 4d031b5..853f1ce 100644
> --- a/drivers/char/umem.c
> +++ b/drivers/char/umem.c
> @@ -129,7 +129,7 @@ static int umem_minor_fault(struct umem *umem,
> * vmf->page = fake_vmf->page;
> */
>
> - page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vmf->address);
> + page = alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, vmf->virtual_address);
> if (!page)
> return VM_FAULT_OOM;
> if (mem_cgroup_cache_charge(page, vma->vm_mm, GFP_KERNEL)) {
>
>
>
> --
> yamahata
>
>
--
yamahata
