Re: [Xen-devel] [patch] loopback block device confliction is fixed.

[Ewan Mellor <ewan@xxxxxxxxxxxxx>]

On Wed, Nov 30, 2005 at 12:04:36PM +0900, Satoshi Uchida wrote:

> Hi.
> 
> I found cause of problem that loopback devices is not connect when more
> than two loopback block devices is used.
> The cause is setup these loopback block devices concurrently, so that
> these devices indicate same loopback devices.
> (show log file ... message.log)
> 
> I attach tentative patch for this problem. (block.patch)
> This patch is that searching is stopped if free loop back device is
> found.
> Process is very fast, so that in my environments, confliction is not
> observed.
> 
> I think that good resolution is provide lock mechanism.

Thanks for your analysis and your tentative patch.  You were right that a
better fix was to provide a lock mechanism, and that's what I've done.

Cheers,

Ewan.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel