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Re: [HMM 12/15] mm/migrate: new memory migration helper for use with device memory v4

From Evgeny Baskakov <ebaskakov@nvidia.com>
Newsgroups linux.kernel
Subject Re: [HMM 12/15] mm/migrate: new memory migration helper for use with device memory v4
Date 2017-07-11 21:40 +0200
Message-ID <u29aN-6ru-5@gated-at.bofh.it> (permalink)
References (4 earlier) <tYeVr-4aS-11@gated-at.bofh.it> <u1QBc-38v-1@gated-at.bofh.it> <u2853-5KF-5@gated-at.bofh.it> <u28op-5Ui-5@gated-at.bofh.it> <u28oq-5Ui-11@gated-at.bofh.it>
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On 7/11/17 11:49 AM, Jerome Glisse wrote:

>
> What are the symptoms ? The program just stop making any progress and you
> trigger a sysrequest to dump current states of each threads ? In this
> log i don't see migration_entry_wait() anymore but it seems to be waiting
> on page lock so there might be 2 issues here.
>
> Jérôme

That is correct, the program is not making any progress.

The stack traces in the kernel log are produced by a "sysrq w" (blocked 
tasks) command.

Thanks,

-- 
Evgeny Baskakov
NVIDIA

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Thread

Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Evgeny Baskakov <ebaskakov@nvidia.com> - 2017-07-11 01:50 +0200
  Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Jerome Glisse <jglisse@redhat.com> - 2017-07-11 20:30 +0200
    Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Evgeny Baskakov <ebaskakov@nvidia.com> - 2017-07-11 20:50 +0200
      Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Jerome Glisse <jglisse@redhat.com> - 2017-07-11 20:50 +0200
        Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Evgeny Baskakov <ebaskakov@nvidia.com> - 2017-07-11 21:40 +0200
          Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Jerome Glisse <jglisse@redhat.com> - 2017-07-13 22:20 +0200
            Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Evgeny Baskakov <ebaskakov@nvidia.com> - 2017-07-14 21:50 +0200
              Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Jerome Glisse <jglisse@redhat.com> - 2017-07-15 03:00 +0200
                Re: [HMM 12/15] mm/migrate: new memory migration helper for use with  device memory v4 Evgeny Baskakov <ebaskakov@nvidia.com> - 2017-07-15 07:10 +0200

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