Re: [dm-devel] [PATCH 0/8] dm: request-based dm-multipath

[Kiyoshi Ueda <k-ueda ct jp nec com>]

Hi Alasdair,

On 01/29/2009 12:40 AM +0900, Alasdair G Kergon wrote:
> On Fri, Oct 03, 2008 at 11:08:25AM -0400, Kiyoshi Ueda wrote:
>> This patch-set is the updated version of request-based dm-multipath.
>> The changes from the previous version (*) are to follow up the change
>> of the interface to export lld's busy state (PATCH 5).
> 
> I've fixed them up to compile again, but haven't thoroughly checked for
> side-effects.

I found some problems below in my patches and now considering
how to fix them:
  o Unnecessary EIO is returned to application if it submits
    a bio during table swapping.
  o kernel panic occurs by frequent table swapping during heavy I/Os.
 
I'll post the fixed version after my vacation.

Thanks,
Kiyoshi Ueda