In one of my directory, a strange symbolic link was created: lrwxrwxrwx 1 vinc17 vinc17 30 2022-09-20 16:55:29 'o the meta-stack pointed by sp + 1.' -> vinc17@zira.1525584:1662328575 After a web search, I've found that this is a part of a string from "comp.el": https://github.com/emacs-mirror/emacs/blob/master/lisp/emacs-lisp/comp.el contains: (defsubst comp-slot+1 () "Slot into the meta-stack pointed by sp + 1." (comp-slot-n (1+ (comp-sp)))) So I suppose that it was created by Emacs.
The 1525584 in the symlink value seems to be a PID, and according to
the atop logs at 17:00:01, there was:
PID SYSCPU USRCPU RDELAY VGROW RGROW RDDSK WRDSK RUID EUID ST EXC THR S CPUNR CPU CMD 1/1
1525584 0.22s 8.67s 0.05s 627.6M 97.7M 26.5M 400.0K vinc17 vinc17 N- - 4 S 6 1% emacs