Re: Switching to MQ by default may generate some bug reports

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On Tue, Aug 08, 2017 at 07:49:53PM +0800, Ming Lei wrote:
> On Tue, Aug 8, 2017 at 7:27 PM, Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> wrote:
> > On Tue, Aug 08, 2017 at 06:43:03PM +0800, Ming Lei wrote:
> >> Hi Mel Gorman,
> >>
> >> On Tue, Aug 8, 2017 at 6:30 PM, Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> wrote:
> >> ....
> >> >
> >> > o I've queued a subset of tests with Ming's v3 patchset as that was the
> >> >   latest branch at the time I looked. It'll take quite some time to execute
> >> >   as the grid I use to collect data is backlogged with other work
> >>
> >> The latest patchset is in the following post:
> >>
> >>       http://marc.info/?l=linux-block&m=150191624318513&w=2
> >>
> >> And you can find it in my github:
> >>
> >>       https://github.com/ming1/linux/commits/blk-mq-dispatch_for_scsi.V4
> >>
> >
> > Unfortunately, the tests were queued last Friday and are partially complete
> > depending on when machines become available. As it is, v3 will take a few
> > days to complete and a requeue would incur further delays. If you believe
> > the results will be substantially different then I'll discard v3 and requeue.
> 
> Firstly V3 on github(never posted out) causes boot hang if CPU cores is >= 16,
> so you need to check if the test is still running, :-(
> 

By co-incidence, the few machines that have completed had core counts
below this so I'll discard existing results and requeue.

Thanks.

-- 
Mel Gorman
SUSE Labs



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