Recompile kernel: No errors, but it doesn't work

I am a beginner and at the moment I am just trying to repack the original boot image. I found that the boot partition is on "/ dev / block / mmcblk0p7", so I dragged it along adb pull /dev/block/mmcblk0p7 original_boot.img
Then I extracted the original boot with tools from https://forum.xda-developers.com/showthread.php?t=2319018 and then recompiled it. But then my image doesn't boot. Flashing with TWRP caused a boot loop. Where am I wrong?

Interface – How can I get a nice progress bar for video processing when I'm working in a standalone kernel?

Simple! Simply set Progress`$ConsoleSupport=True. You can set this in your init.m and always have it switched on.

Now the usual word of warning about undocumented functions: In the future, you can change or damage, erase your hard drive or trigger a global pandemic. Use with appropriate caution.

Why did we hide such a great feature behind a flag? Because we didn't feel ready. On Unix-like systems (i.e.OSX and Linux), it's probably in a fairly decent state. We know that there are problems with some Windows terminals. And the "Windowed Kernel" is really bad if you are one of the warm souls who even know what it is. So we'd like to hear about your experience, especially on Windows. So feel free to reply with comments on how it works for you. If you have access to Redmine and are behaving badly, please report it there and CC me. Try to provide as much information as possible about your operating system and terminal emulator so that we can test it ourselves. Thanks a lot!

Kernel – Not installing properly

Asrok A320 M-HDV, Athlon200ge, Rx580 video card. Do not install from USB without & # 39; nomodeset & # 39 ;, 04/18 and 10/19. If you use the & # 39; nomodeset & # 39; install, the system will not work without & # 39; nomodeset & # 39; downloaded. Installation of official driver from amd.com amdgpu- pro for RX 580 from amd.com ends next error:
Nomode set recognized in kernel parameters amdgpu requires KMS

amdgpu dkms could not run the kernel.

I need VULKAN to support my video adapter. Please fix this error.

kvm virtualization – virt-install Hvm kernel for Ubuntu tree could not be found

I am trying to create a VM with KVM and virt-installer. When I use virt-install, I get the following error:

Start installation …
Get file .treeinfo … | 0 B 00:00:00
Get file contents … | 0 B 00:00:00
Get file information … | 63 B 00:00:00
ERROR The hvm kernel for the Ubuntu tree could not be found.
The domain installation does not appear to have been successful.
If so, you can restart your domain by doing the following:
virsh –connect qemu: /// startup test
Otherwise, please restart your installation.

This is my virt-install command:

virt-install
–name test
–ram 16384
–location = "./ images / ubuntu-18.04.4-desktop-amd64.iso"
–disk path = / var / lib / libvirt / images / kaleb.qcow2, bus = virtio, size = 100
–vcpus 4
–graphics none
–os-variant = ubuntu18.04
–network bridge = test
-x "console = ttyS0"

I saw https://askubuntu.com/questions/1116383/couldnt-find-hvm-kernel-for-ubuntu-tree here to switch from position arg to cdrom, but I need the extra arguments to turn the console on forward tty. Help please?

Memory – Kernel ROP crashes on operating system

I experimented to see if I could build a ROP chain in the kernel. In kernel debugging mode, I can easily jump to any gadget address for the first time. But the problem arises afterwards. If I want to continue the kernel by typing continue, the kernel freezes. The operating system did not respondI have to restart my VM to get back into working condition.

Now I understand: when I jump to a random address (gadget) in the kernel or return, my stack doesn't change like a normal function call. So if I run the gadget statements one at a time or keep running the kernel when the statements need a value from the stack that isn't there, the kernel crashes.

So my question is how can I jump / return to multiple gadgets and continue to run the kernel after running all of the gadgets without crashing it. I think there is no simple and direct answer to that. But if someone can give a basic idea of ​​where to start, it would be very helpful. Thank you in advance.

Debug – Build and run a kernel with KASAN enabled

How do I build a kernel with Kazan enabled and run it on a real device? There is an instruction for pixel devices https://source.android.com/devices/tech/debug/kasan-kcov. However, this does not help with other devices. For example, it is not obvious how the board parameters are adjusted for other devices. Is there logic to incrementing these addresses? How do I calculate new values?

For example, I was able to create a Samsung kernel with kasan + kcov. But the kernel doesn't boot. Just a black screen with no obvious clues from the boot loader in logs.

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Kernel Extensions – Minimal Driver Installation For Wacom Tablet?

I have a CTH-680 digitizer. The Wacom all-in-one driver seems to install unnecessary material on the system. What can be removed? Or how do I do a minimal installation?

├── Applications
│   └── Wacom Tablet.localized
│       ├── Wacom Desktop Center.app
│       ├── Wacom Display Settings.app
│       ├── Wacom Tablet Utility.app
│       └── aft.tar
└── Library
    ├── Application Support
    │   └── Tablet
    │       ├── TabletDriver.app
    │       ├── UserHelp
    │       ├── WacomTabletDriver.app
    │       └── WacomTouchDriver.app
    ├── Extensions
    │   ├── FTDIKext.kext
    │   └── SiLabsUSBDriver64.kext
    ├── Frameworks
    │   └── WacomMultiTouch.framework
    ├── Internet Plug-Ins
    ├── LaunchAgents
    │   ├── com.wacom.DataStoreMgr.plist
    │   ├── com.wacom.IOManager.plist
    │   └── com.wacom.wacomtablet.plist
    ├── LaunchDaemons
    │   ├── com.wacom.UpdateHelper.plist
    │   └── com.wacom.displayhelper.plist
    ├── PreferencePanes
    │   └── WacomTablet.prefpane
    ├── Preferences
    │   └── Tablet
    │       └── Wacom App Specific Settings
    └── PrivilegedHelperTools
        ├── com.wacom.DataStoreMgr.app
        ├── com.wacom.IOManager.app
        └── com.wacom.UpdateHelper.app