The real realtime preemption end game

Posted Nov 17, 2023 0:47 UTC (Fri) by itsmycpu (guest, #139639)
In reply to: The real realtime preemption end game by mjg59
Parent article: The real realtime preemption end game

Maybe something like this could preserve a range of memory? However I wouldn't know if that could be interesting in this context...

https://en.wikipedia.org/wiki/Reboot#Warm

"The Linux family of operating systems supports an alternative to warm boot; the Linux kernel has optional support for kexec, a system call which transfers execution to a new kernel and skips hardware or firmware reset. The entire process occurs independently of the system firmware. The kernel being executed does not have to be a Linux kernel.[citation needed]"

The real realtime preemption end game

Posted Nov 17, 2023 5:33 UTC (Fri) by mjg59 (subscriber, #23239) [Link]

kexec certainly provides a mechanism for preserving memory ranges over kernel switches, but it's not really what most people would describe as reboot