Le 05/12/2016 à 11:36 AM, Jerome Glisse a écrit : > On Thu, May 12, 2016 at 08:07:59AM +0200, Nicolas Morey-Chaisemartin wrote: >> >> Le 05/11/2016 à 04:51 PM, Jerome Glisse a écrit : >>> On Wed, May 11, 2016 at 01:15:54PM +0200, Nicolas Morey Chaisemartin wrote: >>>> Le 05/10/2016 à 12:01 PM, Jerome Glisse a écrit : >>>>> On Tue, May 10, 2016 at 09:04:36AM +0200, Nicolas Morey Chaisemartin wrote: >>>>>> Le 05/03/2016 à 12:11 PM, Jerome Glisse a écrit : >>>>>>> On Mon, May 02, 2016 at 09:04:02PM -0700, Hugh Dickins wrote: >>>>>>>> On Fri, 29 Apr 2016, Nicolas Morey Chaisemartin wrote: >>>> [...] >>>>>> Hi, >>>>>> >>>>>> I backported the patch to 3.10 (had to copy paste pmd_protnone defitinition from 4.5) and it's working ! >>>>>> I'll open a ticket in Redhat tracker to try and get this fixed in RHEL7. >>>>>> >>>>>> I have a dumb question though: how can we end up in numa/misplaced memory code on a single socket system? >>>>>> >>>>> This patch is not a fix, do you see bug message in kernel log ? Because if >>>>> you do that it means we have a bigger issue. >>>>> >>>>> You did not answer one of my previous question, do you set get_user_pages >>>>> with write = 1 as a paremeter ? >>>>> >>>>> Also it would be a lot easier if you were testing with lastest 4.6 or 4.5 >>>>> not RHEL kernel as they are far appart and what might looks like same issue >>>>> on both might be totaly different bugs. >>>>> >>>>> If you only really care about RHEL kernel then open a bug with Red Hat and >>>>> you can add me in bug-cc <jglisse@xxxxxxxxxx> >>>>> >>>>> Cheers, >>>>> Jérôme >>>> I finally managed to get a proper setup. >>>> I build a vanilla 4.5 kernel from git tree using the Centos7 config, my test fails as usual. >>>> I applied your patch, rebuild => still fails and no new messages in dmesg. >>>> >>>> Now that I don't have to go through the RPM repackaging, I can try out things much quicker if you have any ideas. >>>> >>> Still an issue if you boot with transparent_hugepage=never ? >>> >>> Also to simplify investigation force write to 1 all the time no matter what. >>> >>> Cheers, >>> Jérôme >> With transparent_hugepage=never I can't see the bug anymore. >> > Can you test https://patchwork.kernel.org/patch/9061351/ with 4.5 > (does not apply to 3.10) and without transparent_hugepage=never > > Jérôme Fails with 4.5 + this patch and with 4.5 + this patch + yours Nicolas -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>