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Cisco Bug: CSCvv59311 - Repeated "kernel: DMA: Out of SW-IOMMU space" logs

Last Modified

Sep 03, 2020

Products (1)

  • Cisco 3G Wireless WAN

Known Affected Releases

16.12.3

Description (partial)

Symptom:
An affected device will display a slew of the following messages:

%IOSXE-3-PLATFORM: R0/0: kernel: DMA: Out of SW-IOMMU space for 65536 bytes at device

Conditions:
Writing memory ("wr mem") is known to trigger this issue.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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