interrupt

  1. C

    3 cores pegged 24/7 by interrupts with no endpoints + MCE

    NAS server based on Supermicro H13SSL-N w/ EPYC 9214. TrueNAS CORE Community 13.0-U6.8 (FreeBSD 13.1-RELEASE-p9) A month ago we replaced HBAs, RAM and the OS; since then, 3 CPU cores are pegged at 100% continuously. It persists after reboots. Usually this would suggest an issue either with...
  2. B

    cp: Interrupted system call

    Good day. I do not know English well, so I apologize in advance. When working with the program, cp found an annoying issue that occurs exclusively when copying files between different physical devices. For example, if i start copying cp -R /usr/ports /mnt/Z And at the same time begin to...
  3. A

    Trigger an interrupt when the value of a memory location is modified in FreeBSD

    Is it possible to generate an interrupt when the value of a variable or memory location get modified in FreeBSD or Linux environment using C program ? In a C application there is an dynamically allocated array which is being used/modified from multiple locations. The application is pretty large...
  4. A

    How to apply for GPIO interrupt in kernel

    Hi everybody, Recently I transplanted an i2c device to FreeBSD on Raspberry 3b+, and needed to use a GPIO interrupt function. When using the gpio_alloc_intr_resource () function, it always returned NULL. I don’t know what went wrong. And attach DTS configuration : touchscreen@5d {...
  5. aragats

    GPIO Interrupts handling (ARM)

    How to handle GPIO interrupts on BeagleBoard, Raspberry Pi etc. from the user space? That's under TODO at: https://wiki.freebsd.org/FreeBSD/GPIO although the page was edited 1.5 years ago.
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