kernel

  1. rm1984

    Kernel crashes after upgrading from 14.0 to 14.1

    Hi all, I'm currently running FreeBSD 14.0 on a VPS (by Contabo): # uname -a FreeBSD host 14.0-RELEASE-p11 FreeBSD 14.0-RELEASE-p11 #0: Wed Sep 18 23:01:59 UTC 2024 root@amd64-builder.daemonology.net:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 I have been using FreeBSD for years and I...
  2. A

    How to debug kernel in bhyve?

    Hello, I am doing kernel development and would like to debug my version of the kernel. Can I do that with the help of debugger and bhyve, to run in a containerized environment? Thanks.
  3. P

    How to fix bhyve + kgdb online debugging setup for kernel development

    I'm trying to reach a point where I can do online debugging with kgdb of the FreeBSD kernel and it's modules in order to learn more about the system and take on a small projects in the system development. I have searched through the whole internet for the complete guide on how to do it however...
  4. I

    Solved Cannot mount FAT32 msdosfs USB disk

    Hi, I am new to FreeBSD and use it at work. We use a stripped version of FreeBSD11.4-RELEASE (the person that stripped it is not around) and so, do not hesitate to tell me what "might" be missing or what "might" be different in our stripped version. I need to mount a FAT32 usb stick. The...
  5. kr0m

    Solved Custom kernel compilation FreeBSD-14.0 no releng found

    I have updated my system from 13.2-RELEASE -> 14.0-RELEASE, I use a custom kernel configuration in order to have network interface polling enabled, yet when I have tried to recompile my custom kernel with 14.0 version I noticed that releng/14.0 is not present in Git repository. Now I have my...
  6. M

    Changing the runtime gid of the rtld linker

    I am looking for a way to change the gid of the dynamic linker while it is reading shared objects from the filesystem. For context, my goal is to create an environment where an unprivileged user can not read/analyze ELF files but can still execute them. This can be easily implemented for ELF...
  7. F

    jails Jail with newer version (13.2) than host system (13.1)?

    I am running a system with TrueNAS-13.0-U6.1, which currently is the most recent release. This is based on FreeBSD 13.1 (which is EOL): # uname -a FreeBSD storage.example.com 13.1-RELEASE-p9 FreeBSD 13.1-RELEASE-p9 n245429-296d095698e TRUENAS amd64 This is a bit of a shame (it tends to happen...
  8. B

    Config for the wireguard service kernel module based

    Hi all! Is it possible to load the wg-interface configuration through a setting in rc.conf without using the devd hook? On FreeBSD v.14 my wireguard service run under that config: # cat /boot/loader.conf | grep wg if_wg_load="YES" # # cat /etc/rc.conf | grep wg cloned_interfaces="wg"...
  9. Farhan Khan

    Using ddb to print softc variables

    Hi all, Somewhere in my code the member of a struct is changed but I can't seem to find where. I want to use ddb's watch feature but can't figure out how to pinpoint a memory address. I cam find the softc address via 'show all devices', but i cannot figure out how to print the equivalent of...
  10. WhatTheHell

    Solved "Mounting from ufs:/dev/da0s1a failed with error 19. " after using the new kernel

    I've compile the kernel with this conf in vmware workstation, [root@FreeBSD14 ~]# cat SEC cpu HAMMER device acpi device aesni # AES-NI OpenCrypto module device bpf # Berkeley packet filter device ch...
  11. nxjoseph

    Solved Disabling crypto and aesni support in kernel cause make to fail

    Hi. I made a custom kernel by copying GENERIC to a new file called MYKERNEL and I built kernel with KERNCONF=MYKERNEL. My problem is when i commented out those two lines below, make buildkernel command fails with errors. If I don't comment out these lines, make doesn't fail. I would want to know...
  12. C

    Setting up a bhyve vm for kernel development and debugging

    I recently set up a bhyve vm on my workstation for kernel development and figured others might be able to make use of my notes as well, because it's really quite easy. VM setup Download a FreeBSD disk image, i.e. 13.2-RELEASE if you're running 13.2. This version should match whatever kernel...
  13. I

    There appears to be a "hidden" kernel panic somewhere during the shutdown/reboot process??

    I've done some updates to my packages and recently upgraded from 13.2-p3 to p4 and noticed that when I reboot or turn on from a cold boot, savecore saves a core dump for some reason. The system appears perfectly normal the rest of the time; it has no apparent panic during the...
  14. C

    Solved Help with locally built stable kernel not finding zfs root

    Hi, I have installed FreeBSD on an amd64 laptop, and the only issue with it is an apparently long-standing bug in support for eMMC storage (https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211705#c3), which I would like to investigate. But I'm stuck even getting an unmodified but locally...
  15. imgoby

    How to create iso image file after compiling the kernel source code.

    If the kernel source code is compiled, how can I create an image? I want to try, but I can't find a way. Has anyone given a response.
  16. BaronBS

    Solved Poudriere and custom kernels

    Guys, good evening folks. My setup is: I build world and kernel (Generic) on my host and I use poudriere to build all ports that I use (around 1200). I want to play with the Kernel configuration and build a custom kernel for my T430. For now I don't want to put any port module inside the...
  17. GoNeFast_01

    Compiling Kernel Debugging and Know-Hows.

    I was having the known problem with Text Console using CTRL + ALT + F1-F8 bug of tearing / square pixelated screens. I am currently still trying/testing with some options in /boot/loader.conf file to see if I can fix this issue of the tearing with Nvidia drivers 510.60.2. Similar to...
  18. L

    FreeBSD kernel change to NetBSD kernel

    As stated in the title, I would like to change the kernel of my Unix build from FreeBSD to NetBSD, as I prefer the philosophy of the rump kernel to that of a monolithic, but prefer the lexicography and semantics of FreeBSD's system applications. The current build is FreeBSD, with only sudo...
  19. alfa

    FreeBSD 14.0 Current Lock order reversal kernel message bpf.c iflib.c

    Hi, I am currently testing FreeBSD 14.0 Current FreeBSD alfadev 14.0-CURRENT FreeBSD 14.0-CURRENT #1: Fri Sep 30 11:55:56 +03 2022 When machine has started I am getting Lock order reversal messages from kernel : Oct 1 10:24:17 alfa kernel: em1: link state changed to DOWN Oct 1 10:24:18...
  20. spmzt

    What is the name of fortuna's kernel process?

    Hi, Historically yarrow algorithm had a kernel process with the name of yarrow. But after replacing it with Fortuna, the kernel process disappears. What is the name of the new kernel process of Fortuna's algorithm in the permanent kernel processes?
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