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SubjectRE: [PATCH 1/2] mm: drop migrate type checks from has_unmovable_pages
Date
Hi Michal,
> -----Original Message-----
> From: Michal Hocko [mailto:mhocko@kernel.org]
> Sent: Tuesday, November 14, 2017 3:07 PM
> To: Ran Wang <ran.wang_1@nxp.com>
> Cc: linux-mm@kvack.org; Michael Ellerman <mpe@ellerman.id.au>; Vlastimil
> Babka <vbabka@suse.cz>; Andrew Morton <akpm@linux-foundation.org>;
> KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>; Reza Arbab
> <arbab@linux.vnet.ibm.com>; Yasuaki Ishimatsu <yasu.isimatu@gmail.com>;
> qiuxishi@huawei.com; Igor Mammedov <imammedo@redhat.com>; Vitaly
> Kuznetsov <vkuznets@redhat.com>; LKML <linux-kernel@vger.kernel.org>;
> Leo Li <leoyang.li@nxp.com>; Xiaobo Xie <xiaobo.xie@nxp.com>
> Subject: Re: [PATCH 1/2] mm: drop migrate type checks from
> has_unmovable_pages
>
> On Tue 14-11-17 06:10:00, Ran Wang wrote:
> [...]
> > > > This drop cause DWC3 USB controller fail on initialization with
> > > > Layerscaper processors (such as LS1043A) as below:
> > > >
> > > > [ 2.701437] xhci-hcd xhci-hcd.0.auto: new USB bus registered,
> assigned
> > > bus number 1
> > > > [ 2.710949] cma: cma_alloc: alloc failed, req-size: 1 pages, ret: -16
> > > > [ 2.717411] xhci-hcd xhci-hcd.0.auto: can't setup: -12
> > > > [ 2.727940] xhci-hcd xhci-hcd.0.auto: USB bus 1 deregistered
> > > > [ 2.733607] xhci-hcd: probe of xhci-hcd.0.auto failed with error -12
> > > > [ 2.739978] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
> > > >
> > > > And I notice that someone also reported to you that DWC2 got
> > > > affected recently, so do you have the solution now?
> > >
> > > Yes. It should be in linux-next. Have a look at the following email
> > > thread:
> > >
> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flkml.
> > >
> kernel.org%2Fr%2F20171104082500.qvzbb2kw4suo6cgy%40dhcp22.suse.cz&
> > >
> data=02%7C01%7Cran.wang_1%40nxp.com%7C5e73c6a941fc4f1c10e708d52
> > >
> a860c5b%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C636461677
> > >
> 583607877&sdata=zlRxJ4LZwOBsit5qRx9yFT5qfP54wZ0z6G1z%2Bcywf5g%3D
> > > &reserved=0
>
> I really have no idea where the above link came from because my email had
> a reference to
> https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flkml.
> kernel.org%2Fr%2F20171104082500.qvzbb2kw4suo6cgy%40dhcp22.suse.cz&
> data=02%7C01%7Cran.wang_1%40nxp.com%7C9b452e62f11e446d12b408d5
> 2b2e4014%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63646239
> 9997608449&sdata=S9MPhGyIUiYCJdVYMh3DAHAEytu%2Fu45BB%2BcMhO%
> 2BP3Qo%3D&reserved=0
> Has your email client modified the original email?
>
> > Thanks for your info, although I fail to open the link you shared, but
> > I got patch from my colleague and the issue got fix on my side, let you know,
> thanks.
>
> Thanks for your testing anyway. Can I assume your Tested-by?
Yes, please.

BR
Ran
> --
> Michal Hocko
> SUSE Labs

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