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Groups > linux.kernel > #1512651

Re: [PATCH 1/2] swiotlb: Rate-limit printing when running out of SW-IOMMU space

From Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Newsgroups linux.kernel
Subject Re: [PATCH 1/2] swiotlb: Rate-limit printing when running out of SW-IOMMU space
Date 2016-10-31 17:10 +0100
Message-ID <synjQ-4H2-15@gated-at.bofh.it> (permalink)
References <syn0t-4i5-5@gated-at.bofh.it> <syn0u-4i5-15@gated-at.bofh.it>
Organization Cogent Embedded

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On 10/31/2016 06:45 PM, Geert Uytterhoeven wrote:

> If the system runs out of SW-IOMMU space, changes are high successive

    s/changes/chances/?

> requests will fail, too, flooding the kernel log.  This is true
> especially for streaming DMA, which is typically used repeatedly outside
> the driver's initialization routine.  Add rate-limiting to fix this.
>
> While at it, get rid of the open-coded dev_name() handling by using the
> appropriate dev_err_*() variant.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
[...]

MBR, Sergei

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Thread

[PATCH 0/2] swiotlb: Rate-limit printing and 64-bit memory debugging Geert Uytterhoeven <geert+renesas@glider.be> - 2016-10-31 16:50 +0100
  [PATCH 1/2] swiotlb: Rate-limit printing when running out of SW-IOMMU space Geert Uytterhoeven <geert+renesas@glider.be> - 2016-10-31 16:50 +0100
    Re: [PATCH 1/2] swiotlb: Rate-limit printing when running out of  SW-IOMMU space Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-10-31 17:10 +0100
    Re: [PATCH 1/2] swiotlb: Rate-limit printing when running out of  SW-IOMMU space Konrad Rzeszutek Wilk <konrad@darnok.org> - 2016-11-05 20:50 +0100
  [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Geert Uytterhoeven <geert+renesas@glider.be> - 2016-10-31 16:50 +0100
    Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Robin Murphy <robin.murphy@arm.com> - 2016-10-31 18:50 +0100
      Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Geert Uytterhoeven <geert@linux-m68k.org> - 2016-10-31 19:30 +0100
        Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Robin Murphy <robin.murphy@arm.com> - 2016-11-01 12:50 +0100
          Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Geert Uytterhoeven <geert@linux-m68k.org> - 2016-11-07 16:50 +0100
            Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Robin Murphy <robin.murphy@arm.com> - 2016-11-07 18:20 +0100
    Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> - 2016-10-31 19:00 +0100
      Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Geert Uytterhoeven <geert@linux-m68k.org> - 2016-11-07 20:20 +0100
        Re: [PATCH 2/2] swiotlb: Add swiotlb=nobounce debug option Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> - 2016-11-07 20:30 +0100

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