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Kernel: Sony, Stupid RCU Tricks, and AMDGPU

Submitted by Roy Schestowitz on Saturday 24th of April 2021 05:00:57 PM Filed under
Linux

        

  • Sony Proposes A New Soft Watchdog For Linux - Phoronix

    Sony Linux engineer Peter Enderborg has proposed a soft watchdog for the Linux kernel to carry out pre-defined tasks in certain situations but not being like hardware watchdogs that would reboot the system if a problem crops up. 

    This proposed "softwatchdog" would carry out tasks besides a hard reboot. such as taking pre-defined action if the system is running slow or on low memory situations. 

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  • Linux 5.13 To Add Perf Support For Intel Alder Lake - Phoronix

    Queued this week into perf/core ahead of the imminent Linux 5.13 merge window is perf subsystem bring-up for Intel's next-gen Alder Lake processors. 

    Supporting the performance counters/events for Intel Alder Lake processors was more tricky than their usual new CPU enablement due to the new hybrid architecture. With Alder Lake featuring a mix of Golden Cove high performance cores and the low-power Gracemont cores, special handling is necessary within the perf subsystem and other select areas of the kernel due to the different capabilities between the high performance and power-saving CPU cores. 

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  • Paul E. Mc Kenney: Stupid RCU Tricks: The design of rcutorture

    This installment of the rcutorture series takes a high-level look at its design. At the highest level, rcutorture is a stress test with a few unit-test components thrown in for good measure. It also includes scripts to handle both single-system and distributed testing. All of this code is of course paying homage to the many moods of Mr. Murphy.

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  • AMD Sends In ASPM Support, FreeSync Fixes For Linux 5.13 Cycle - Phoronix

    On top of the prior AMDGPU feature pulls for Linux 5.13 that brought Aldebaran support, FreeSync HDMI, and other improvements, another round of updates were sent in on Friday. 

    Given that the Linux 5.13 merge window is kicking off next week and the time for new "feature" updates to DRM-Next has already passed, this latest AMDGPU pull request is primarily about bug fixes. There are fixes for the new Aldebaran accelerator support, addressing eDP issues, some VanGogh APU problems have also been taken care of, Renoir SMU problems addressed, and also some FreeSync fixes too. 

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