kernel | Linux kernel with modifications for Microsoft Surface

by linux-surface C Version: surface/v6.3.5-1 License: Non-SPDX

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | kernel Summary

kernel is a C library. kernel has no bugs, it has no vulnerabilities and it has low support. However kernel has a Non-SPDX License. You can download it from GitHub.

There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first.

Support

Quality

Security

License

Reuse

Support

kernel has a low active ecosystem.

It has 103 star(s) with 27 fork(s). There are 20 watchers for this library.

It had no major release in the last 6 months.

There are 6 open issues and 25 have been closed. On average issues are closed in 62 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of kernel is surface/v6.3.5-1

Quality

kernel has no bugs reported.

Security

kernel has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

kernel has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

kernel releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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kernel Key Features

No Key Features are available at this moment for kernel.

kernel Examples and Code Snippets

Construct an exponential power convolution kernel .

python

Lines of Code : 110

License : Non-SPDX (Apache License 2.0)

Copy

def exponential_power_convolution_kernel(
    grid_shape,
    length_scale,
    power=None,
    divisor=None,
    zero_inflation=None,
):
  """Make an exponentiated convolution kernel.

  In signal processing, a [kernel]
  (https://en.wikipedia.org/w

Create the kernel .

python

Lines of Code : 46

License : Non-SPDX (Apache License 2.0)

Copy

def build(self, input_shape):

    if self.data_format == 'channels_first':
      channel_axis = 1
    else:
      channel_axis = -1
    if input_shape[channel_axis] is None:
      raise ValueError('The channel dimension of the inputs '

Build the kernel .

python

Lines of Code : 42

License : Non-SPDX (Apache License 2.0)

Copy

def build(self, input_shape):
    input_shape = tensor_shape.TensorShape(input_shape)
    channel_axis = self._get_channel_axis()
    if input_shape.dims[channel_axis].value is None:
      raise ValueError('The channel dimension of the inputs '

Community Discussions

Trending Discussions on kernel

Call to undefined method App\Models\Category::factory() laravel

visit_Psych_Nodes_Alias: Unknown alias: default (Psych::BadAlias)

WebSocket not working when trying to send generated answer by keras

Rails 7 Ruby 3.1 LoadError: cannot load such file -- net/smtp

lfortran in a jupyter notebook kills kernel

Is there a reason why Ruby's prepend behaves differently when used with modules versus classes?

How to memory-map a PCI BAR using PCIDriverKit?

When does Linux x86-64 syscall clobber %r8, %r9 and %r10?

Error when trying to install devise in Ruby on Rails 7.0.0

Podman unable to mount local file into container

QUESTION

Call to undefined method App\Models\Category::factory() laravel

Asked 2022-Mar-31 at 13:28

I have the error stated above, and here is the copy log

...

ANSWER

Answered 2021-Aug-01 at 00:51

You need to use the factory trait for the model to have the factory() method available.

Source https://stackoverflow.com/questions/68606726

QUESTION

visit_Psych_Nodes_Alias: Unknown alias: default (Psych::BadAlias)

Asked 2022-Mar-19 at 10:21

I updated from ruby 2.7.1 to 3.1.1, then removed Gemfile.lock and ran bundle update (it's on a dev branch, so I can throw it away if this is a bad idea, I just wanted to see if it would work).

bundle update succeeds, but when I start the server:

...

ANSWER

Answered 2022-Mar-19 at 10:21

The problem is related to the Ruby 3.1 / Psych 4.x incompatibility described in this issue: https://bugs.ruby-lang.org/issues/17866

Ruby 3.0 comes with Psych 3, while Ruby 3.1 comes with Psych 4, which has a major breaking change (diff 3.3.2 → 4.0.0).

The new YAML loading methods (Psych 4) do not load aliases unless they get the aliases: true argument.
The old YAML loading methods (Psych 3) do not support the aliases keyword.

At this point, it seems like anyone, anywhere that wants to load YAML in the same way it worked prior to Ruby 3.1, need to do something like this:

Source https://stackoverflow.com/questions/71191685

QUESTION

WebSocket not working when trying to send generated answer by keras

Asked 2022-Feb-17 at 12:52

I am implementing a simple chatbot using keras and WebSockets. I now have a model that can make a prediction about the user input and send the according answer.

When I do it through command line it works fine, however when I try to send the answer through my WebSocket, the WebSocket doesn't even start anymore.

Here is my working WebSocket code:

...

ANSWER

Answered 2022-Feb-16 at 19:53

There is no problem with your websocket route. Could you please share how you are triggering this route? Websocket is a different protocol and I'm suspecting that you are using a HTTP client to test websocket. For example in Postman:

Postman New Screen

HTTP requests are different than websocket requests. So, you should use appropriate client to test websocket.

Source https://stackoverflow.com/questions/71099818

QUESTION

Rails 7 Ruby 3.1 LoadError: cannot load such file -- net/smtp

Asked 2022-Jan-25 at 16:15

I upgraded to Rails 7 and Ruby 3.1. While trying to run tests with rspec I got the error below. How can I fix it?

...

ANSWER

Answered 2022-Jan-25 at 16:15

UPD: on January 6th, 2022 Rails 7.0.1 was released:

The focus of this release is bring support to Ruby 3.1

Amongh other Ruby 3.1-related issues it brought a fix for this problem. So upgrade to Rails >= 7.0.1.

Add gem 'net-smtp', require: false to your Gemfile and run bundle.

Similarly I assume you may have problems with net-imap and net-pop and so have to add them until a new mail gem version is released.

Related pull requests and issues:

Source https://stackoverflow.com/questions/70500220

QUESTION

lfortran in a jupyter notebook kills kernel

Asked 2022-Jan-23 at 22:47

I can't seem to get output from the lfortran jupyter kernel.

I installed via conda install for:

...

ANSWER

Answered 2022-Jan-23 at 22:47

The global scope in LFortran is special to enable interactivity and usage in a notebook and defines a set of additional rules. You actually don't need a program body to run any Fortran code there, just using the print statement directly will work:

Source https://stackoverflow.com/questions/70825597

QUESTION

Is there a reason why Ruby's prepend behaves differently when used with modules versus classes?

Asked 2022-Jan-21 at 07:05

While monkey-patching a module from a Rails engine, we found that if you prepend a module B to another module A, the prepended module B won't be added to the ancestors of classes that have already included module A prior to the prepend. To illustrate:

...

ANSWER

Answered 2022-Jan-21 at 07:05

https://bugs.ruby-lang.org/issues/9573 shows a similar behavior concerning classes and modules. The bug report was posted on 2014 and was only closed 2020. Based on that report, I've manually confirmed that

This behavior still appears in ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-linux], but
This behavior no longer appears in ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-linux]

Source https://stackoverflow.com/questions/70709163

QUESTION

How to memory-map a PCI BAR using PCIDriverKit?

Asked 2022-Jan-18 at 13:08

How to memory-map a PCI Base Address Register (BAR) from a PCIDriverKit driver (DEXT) to a userspace application?

Memory-mapping from a driver extension to an application can be accomplished by implementing the IOUserClient::CopyClientMemoryForType in the user client subclass (on the driver side) and then calling IOConnectMapMemory64 (from the user-space application side). This has been very nicely and thoroughly explained in this related answer.

The only missing bit is getting an IOMemoryDescriptor corresponding to the desired PCI BAR in order to return it from the CopyClientMemoryForType implementation.

Sample code

Asked another way, given the following simplified code, what would be the implementation of imaginaryFunctionWhichReturnsTheBARBuffer?

...

ANSWER

Answered 2022-Jan-16 at 17:01

Turns out IOPCIDevice::_CopyDeviceMemoryWithIndex was indeed the function needed to implement this (but the fact that it's private is still an inconvenient).

Sample code

Bellow is some sample code showing how this could be implemented (the code uses MyDriver for the driver class name and MyDriverUserClient for the user client).

Relevant sections from MyDriver.cpp implementation:

Source https://stackoverflow.com/questions/69946860

QUESTION

When does Linux x86-64 syscall clobber %r8, %r9 and %r10?

Asked 2022-Jan-05 at 10:28

I have just browsed the Linux kernel source tree and read the file tools/include/nolibc/nolibc.h.

I saw the syscall in this file uses %r8, %r9 and %r10 in the clobber list.
Also there is a comment that says:

rcx and r8..r11 may be clobbered, others are preserved.

As far as I know, syscall only clobbers %rax, %rcx and %r11 (and memory).

Is there a real example of syscall that clobbers %r8, %r9 and %r10?

...

ANSWER

Answered 2022-Jan-05 at 10:28

Only 32-bit system calls (e.g. via int 0x80) in 64-bit mode step on those registers, along with R11. (What happens if you use the 32-bit int 0x80 Linux ABI in 64-bit code?).

syscall properly saves/restores all regs including R8, R9, and R10, so user-space using it can assume they keep their values, except the RAX return value. (The kernel's syscall entry point even saves RCX and R11, but at that point they've already been overwritten by the syscall instruction itself with the original RIP and before-masking RFLAGS value.)

Those, with R11, are the non-legacy registers that are call-clobbered in the function-calling convention, so compiler-generated code for C functions inside the kernel naturally preserves R12-R15, even if an asm entry point didn't save them.

Currently the 64-bit int 0x80 entry point just pushes 0 for the call-clobbered R8-R11 registers in the process-state struct that it will restore from before returning to user space, instead of the original register values.

Historically, the int 0x80 entry point from 32-bit user-space didn't save/restore those registers at all. So their values were whatever compiler-generated kernel code left sitting around. This was thought to be innocent because 32-bit mode can't read those registers, until it was realized that user-space can far-jump to 64-bit mode, using the same CS value that the kernel uses for normal 64-bit user-space processes, selecting that system-wide GDT entry. So there was an actual info leak of kernel data, which was fixed by zeroing those registers.

IDK whether there used to be or still is a separate entry point from 64-bit user-space vs. 32-bit, or how they differ in struct pt_regs layout. The historical situation where int 0x80 leaked r8..r11 wouldn't have made sense for 64-bit user-space; that leak would have been obvious. So if they're unified now, they must not have been in the past.

Source https://stackoverflow.com/questions/69515893

QUESTION

Error when trying to install devise in Ruby on Rails 7.0.0

Asked 2022-Jan-04 at 03:31

I'm trying to install devise in the rails version I get the error of the latest version of devise

I have tried with other devise versions but it is update it to the latest,

this is the error:

...

ANSWER

Answered 2022-Jan-04 at 03:31

Source of the Error

The version of Devise you're using calls a method named reference. https://github.com/heartcombo/devise/blob/c82e4cf47b02002b2fd7ca31d441cf1043fc634c/lib/devise.rb#L320-L323

Source https://stackoverflow.com/questions/69229112

QUESTION

Podman unable to mount local file into container

Asked 2021-Dec-20 at 07:31

I'm planning to move away from Docker to Podman. I use docker-compose a lot so am planning to switch to podman-compose as well.

However I'm stuck at the simplest of podman examples, I can't seem to mount a volume onto my container? Obviously I'm doing something wrong however I cant figure out what it is.

My source file definitely exists on my (hardware) host (so not the podman machine). but I keep getting the error 'no such file or directory'.

Funny thing is if I manually create the same file locally on the podman machine (podman machine ssh --> touch /tmp/test.txt) it works perfectly fine.

Question is;

should I (manually?) mount all my local files onto the Fedora VM (podman machine) so that in turn this Fedora mount can be used in my actual container? and if so, how do I do this?
The podman run cmd below should work and there is something else I'm doing wrong?

...

ANSWER

Answered 2021-Dec-20 at 07:31

As mentioned by @ErikSjölund there has been an active treat on https://github.com/containers/podman. Apparantely Centos (Podman Machine) does not (yet) support different types of volume creation on the machine.

It's not perse Podman lacking this feature it's waiting for CentOS to support this feature as well.

However, should you want to mount a local directory onto the machine I recommend have a look at https://github.com/containers/podman/issues/8016#issuecomment-995242552. It describes how to do a read-only mount on CoreOS (or break compatibility with local version).

Info:

https://github.com/containers/podman/pull/11454 https://github.com/containers/podman/pull/12584

Source https://stackoverflow.com/questions/70275279

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install kernel

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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