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Diffstat (limited to 'doc/guides/rel_notes/release_16_07.rst')
| -rw-r--r-- | doc/guides/rel_notes/release_16_07.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/guides/rel_notes/release_16_07.rst b/doc/guides/rel_notes/release_16_07.rst index 569f562f..e2af1474 100644 --- a/doc/guides/rel_notes/release_16_07.rst +++ b/doc/guides/rel_notes/release_16_07.rst @@ -195,6 +195,21 @@ Resolved Issues EAL ~~~ +* **igb_uio: Fixed possible mmap failure for Linux >= 4.5.** + + mmaping the iomem range of the PCI device fails for kernels that + enabled CONFIG_IO_STRICT_DEVMEM option: + + EAL: pci_map_resource(): + cannot mmap(39, 0x7f1c51800000, 0x100000, 0x0): + Invalid argument (0xffffffffffffffff) + + CONFIG_IO_STRICT_DEVMEM is introduced in Linux v4.5 + + Updated igb_uio to stop reserving PCI memory resources, from + kernel point of view iomem region looks like idle and mmap worked + again. This matches uio_pci_generic usage. + Drivers ~~~~~~~ |