Questions tagged [kernel]
Everything about Unix kernels: development, configuration, compilation, design, etc.
3,614 questions
1 vote
0 answers
24 views
Why does Linux CFS need a periodic timer interrupt more frequent than the time slice?
OSTEP says Note that CFS utilizes a periodic timer interrupt, which means it can only make decisions at fixed time intervals. This interrupt goes off frequently (e.g., every 1 ms), giving CFS a chance ...
- 169
0 votes
0 answers
50 views
file-nr keeps increasing forever
I have a cloud VM running linux-yocto 6.17 and a few daemon processes--postfix, dovecot, rspamd, nginx, sshd, fail2ban and redis. Ever since upgrading from 6.11 to 6.17, I've noticed that /proc/sys/fs/...
1 vote
1 answer
44 views
How to set charging threshold of a Toshiba laptop directly from Linux
I just had to order a new battery which died after just one year of usage. Apart from the cost, this is a bit environmentally wasteful - waste of lithium and rare earths. So now I have learned that ...
- 704
0 votes
1 answer
47 views
Fast question about gnu-libre kernel
This kernel is identical to Linux official kernel but they remove all proprietary binary firmware and there is not possibility to load it, this mean more safety and more os. https://linux-libre.fsfla....
- 14.3k
2 votes
1 answer
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kernel panic after suspend starting from kernel 6.16
I've a problem with kernel versions starting from version 6.16. it was working in kernel 6.15. In kernel 6.15, when I put my laptop to sleep and resume from it, the Wi-Fi does not resume. So I am no ...
- 215
5 votes
1 answer
342 views
How to interpret the refcnt field in /proc/crypto?
Here's an example /proc/crypto entry: name : md5 driver : md5-generic module : kernel priority : 0 refcnt : 1 selftest : passed internal : no type : shash ...
- 61
0 votes
1 answer
61 views
Cross compile for ppc64 kernel, no way to generate Debian package?
I start to cross-compile a kernel for an old ppc64 machine using a fast amd64 machine. I have installed all deps apt -y install bash-completion make build-essential linux-source bc kmod cpio flex ...
- 14.3k
0 votes
0 answers
60 views
ps ax and -o fd
According to ps(1), ps doesn't support fd. even I didn't find fd in task_struct of kernel. How can I find fd of a program? َUPDATE: FD means File Descriptor. When I get query from services such as : ...
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