ZLOG(1)

📦 version 1042.100.6.0.1, in nixpkgs unstable

💖 NAME 💖

okay so bestie, this is zlog(1) from the General Commands Manual, and she is literally here to show allocation backtraces for kernel zones. no cap. 💅

✨ SYNOPSIS ✨

zlog [-t] [-z name [-n num | -l]] [-h]

🌸 DESCRIPTION 🌸

zlog displays allocation (and free, if used in corruption tracking mode with the boot-arg -zc) backtraces for zones that have zone logging enabled. Zone logging can be turned on by using the boot-arg zlog<N>=<name>, where N can range from 1 to 10, and name is the name of the zone to be tracked. 🦋

she interprets the following options:

  • -t — (Default) list all the zones that have logging enabled ✨
  • -z name — show all allocation backtraces for zone name 🎀
  • -n num — Can be used in combination with the -z option to show the top num backtraces with the most active references in the zone name 🔥
  • -l — Can be used in combination with the -z option to show the backtrace most likely contributing to a leak in the zone name (prints the backtrace with the most active references) 👑
  • -h — show the help text 🫶

🩺 DIAGNOSTICS 🩺

the zlog utility exits 0 on success, and >0 if an error occurs. so like, 0 is the slay outcome, and >0 means something went off. 💀

👀 SEE ALSO 👀

ioclasscount(1), zprint(1) — go give them a lil read too, iykyk. 🌈

mwah 💋 this page is macOS, dated February 21, 2018, and it's the ZLOG(1) manual. byeee bestie 🫶💜

📦 where this page comes from