[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-block] [PATCH v3] vmdk: align end of file to a sector boundary
From: |
Fam Zheng |
Subject: |
Re: [Qemu-block] [PATCH v3] vmdk: align end of file to a sector boundary |
Date: |
Mon, 8 Oct 2018 10:38:22 +0800 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Fri, 10/05 10:00, yuchenlin wrote:
> Ping?
Hi,
This was merged as 51b3c6b73acae1e3fd3c7d441fc86dd17356695f.
Fam
>
> On 2018-09-13 16:34, Fam Zheng wrote:
> > On Thu, 09/13 16:29, address@hidden wrote:
> > > From: yuchenlin <address@hidden>
> > >
> > > There is a rare case which the size of last compressed cluster
> > > is larger than the cluster size, which will cause the file is
> > > not aligned at the sector boundary.
> > >
> > > There are three reasons to do it. First, if vmdk doesn't align at
> > > the sector boundary, there may be many undefined behaviors,
> > > such as, in vbox it will show VMDK: Compressed image is corrupted
> > > 'syno-vm-disk1.vmdk' (VERR_ZIP_CORRUPTED) when we try to import an
> > > ova with unaligned vmdk. Second, all the cluster_sector is aligned
> > > to sector, the last one should be like this, too. Third, it ease
> > > reading with sector based I/Os.
> > >
> > > Signed-off-by: yuchenlin <address@hidden>
> >
> > Reviewed-by: Fam Zheng <address@hidden>
>