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Sun Server X3-2L (formerly Sun Fire X4270 M3) Product Notes

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Updated: August 2019
 
 

Oracle VM 3.3.1 server dmesg shows "pci_mag_sg failed" (20212048)

Oracle VM 3.3.1 server dmesg might occasionally shows "pci_mag_sg failed" error messages. These are caused by the limited capacity of the software IO TLB.

Affected software:

  • Oracle VM Server 3.3.1

  • Releases 1.0 and later

Workaround:

Set the swiotlb=65762 in kernel parameters to enlarge it to 128M. If the issue remains, enlarge the value to 131524 or 263048.