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Kernel: Page Table Check and Habana Labs Work in Linux 5.17

Submitted by Roy Schestowitz on Sunday 16th of January 2022 01:37:06 PM Filed under
Linux
  • New Xilinx Drivers, GNSS Reciver USB Driver & Habana Labs Updates Land In Linux 5.17 - Phoronix

    Sent in to the Linux kernel on Friday were the "char/misc" updates as the smorgasbord of kernel changes not fitting formally within other areas of the kernel. The char/misc changes range from AI accelerator driver updates to new Xilinx code to other random changes littered throughout.

    Char/misc for Linux 5.17 is as diverse as ever. Among the many changes bringing in roughly 26.9k lines of new code (and 4.5k lines removed) include items such as:

    - The Xilinx event management driver is new and is used for notifications from firmware. This can be used for error events, device events, and more.

  • Page Table Check Feature Merged For Linux 5.17 To Help Fight Memory Corruption - Phoronix

    Merged into Linux 5.17 this weekend is the Google-developed Page Table Check feature that can help combat some forms of memory corruption.

    Google engineers last year uncovered a reference count underflow issue in the kernel that affected all kernel releases going back to Linux 4.14 four years prior. Stemming from uncovering that issue, Google engineers came up with Page Table Check to help uncover issues like that moving forward. The Page Table Check feature is principally about ensuring there is no illegal sharing of pages such as one process accidentally (or otherwise) leaking to another process.

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