Re: [dm-devel] Device Mapper MultiPath

[Andy <genanr emsphone com>]

On Fri, Apr 03, 2009 at 10:23:23AM -0400, Konrad Rzeszutek wrote:
> On Thu, Apr 02, 2009 at 11:58:03PM +0200, christophe varoqui free fr wrote:
> > I can reproduce Andy's multipathd behaviour with scsi_debug (symmetrix arrays too)... only with the upstream directio checker. My guess is that the async code in there misbehaves. Needs review.
> 
> I saw this behavior as well on RHEL5U3 with the upstream multipath.
> My fix was to replace all of the libaio calls with syscalls, as I attributed
> the issue to libaio != kernel libaio, and left it at that.
> 
> Andy, are you using a recent version of libaio and kernel? Like
> Fedora Core 10?
> > 

My test system is debian. It has libio 0.3.107-3 installed, and I am using
Linus's .git kernel from a few days ago.

Andy