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Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel low memory reserving failed

From Yinghai Lu <yinghai@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel low memory reserving failed
Date 2015-07-23 01:50 +0200
Message-ID <pPbVV-6bx-15@gated-at.bofh.it> (permalink)
References (3 earlier) <pOAD0-249-7@gated-at.bofh.it> <pOB63-2Rd-21@gated-at.bofh.it> <pOBz5-3p0-17@gated-at.bofh.it> <pOLoL-JK-43@gated-at.bofh.it> <pOQy5-80E-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Jul 21, 2015 at 5:59 PM, Baoquan He <bhe@redhat.com> wrote:
>> That commit should only be used to workaround some systems that
>> have partial iommu support.
>
> Those big servers mostly has hardware iommu. But they still can
> enable swiotlb suport. Then low memory is needed.

Do you have whole bootlog? I don't understand why those system can not use
full iommu. BIOS problem or HW/silicon limitation?

Yinghai
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Thread

[PATCH] Do not reserve crashkernel high memory if crashkernel low memory reserving failed Baoquan He <bhe@redhat.com> - 2015-07-19 13:10 +0200
  Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Yinghai Lu <yinghai@kernel.org> - 2015-07-23 01:50 +0200
    Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Joerg Roedel <joro@8bytes.org> - 2015-07-27 16:10 +0200
  Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Yinghai Lu <yinghai@kernel.org> - 2015-07-23 01:50 +0200
    Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Baoquan He <bhe@redhat.com> - 2015-07-28 03:00 +0200
      Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Baoquan He <bhe@redhat.com> - 2015-07-28 11:30 +0200
  Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Yinghai Lu <yinghai@kernel.org> - 2015-07-23 01:50 +0200
  Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Joerg Roedel <joro@8bytes.org> - 2015-07-27 16:50 +0200
  Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Joerg Roedel <joro@8bytes.org> - 2015-07-27 16:50 +0200
  Re: [PATCH v2] Do not reserve crashkernel high memory if crashkernel  low memory reserving failed Baoquan He <bhe@redhat.com> - 2015-07-28 01:40 +0200

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