When using io_uring_queue_init it calls io_uring_setup. There’s an ENOMEM returned when there is insufficient amount of locked memory available for the process. A strace will look something like: What is the formula for how much locked memory is required per entry (first argument)? and if possible, base…
Tag: linux
Is it safe to set AllowOverride all on /var/www/ directory in production?
By default Apache configuration file (/etc/apache2/apache2.conf) is as follows: And we can set AllowOverride to All, to allow overriding Apache configs per directory. I am wondering if this might cause security issues. Answer Beyond the obvious security problems of allowing configuration modifications in a pu…
Can’t Fix Broken Git installation on Ubuntu
I was trying to install git on ubuntu, but there is an error when I try to install or fix broken git installation. This is the error: I tried other possibles solutions, I will list here: apt –fix-broken install. Error: The same problem as above. apt purge git. Show me to make an apt fix broken install s…
Segmentation fault when executed from linux command line [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed 1 year ago. Improve this question My cod…
Go pipe write end being closed, why?
I just read some Go code that does something along the following lines: some_binary is a long running process. Why is inst.wpipe closed and set to nil? What would happen if its not closed? Is it common/necessary to close inst.wpipe? Is dup2(pipe_fd[1], 1) the C analogue of cmd.Stdout = inst.wpipe; inst.wpipe.…
How to join command output lines into by separating then with n character [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 1 year ago. Improve this question I have below data which is just fetching the data which is 80 or more than …
tflite_runtime get Illegal instruction on raspberry pi
after installing tflite_runtime on raspberry pi using the following commands and trying to import tflite .. I got “Illegal instruction” Error screenshot Answer The prebuilt tflite_runtime package set from the above site does not cover armv6 architecture yet. Alternatively, you can choose some othe…
How to find the lines that include same two letters by using grep?
For example “Conclusion” has two c but at different index. I am using It shows me only like “Accept”. I mean it shows me only these words are with side by side but i want to see here also “Conclusion” Answer If you plan to match lines that contain any two identical letters …
How to make a custom section executable (other than .text)
Basic Hello World as seen many times before on x86_64 Linux: My current ld linker script: Invoked with: I’m currently getting a segfault. Inspecting the output of readelf -a I can see that my_section does not have executable permissions. I believe this is causing the segfault. If I replace it with .text…
Can someone help me with rename tool? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack …