PROBE::VM.KMEM_CAC(3stap)
π NAME π
probe::vm.kmem_cache_free β bestie, this one fires the second somebody asks for a kmem_cache_free. Like, the kernel's done with that slab memory and it's handing it back, and this probe is RIGHT there when it happens. β¨
πΈ SYNOPSIS πΈ
probe vm.kmem_cache_free {}
No args, no frills, just vibes. She takes nothing and she delivers everything. π
π VALUES π
Okay so when this probe goes off, here's all the tea it hands you:
ptrβ a pointer to the kmemory that got allocated, the one that came back fromkmem_cache. π«Άcaller_functionβ the name of the caller function. Yes, the who did this of it all. πcall_siteβ the address of the function that's calling this kmemory function. So you know exactly where it went down. πnameβ the name of the probe point. Iconic, self-explanatory, we love a straightforward queen. π
π¦ SEE ALSO π¦
tapset::memory(3stap)β go read the memory tapset bestie, it's giving β¨contextβ¨
SystemTap Tapset Reference, September 2026 edition β mwah, that's a wrap, tysm for reading, ily, go free some kmem π§π
π¦ where this page comes from
- centos-stream 10: systemtap-client 5.6-3.el10 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- centos-stream 9: systemtap-client 5.6-3.el9 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- fedora 43: systemtap-client 5.6-1.fc43 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- fedora 44: systemtap-client 5.6-1.fc44 Β· GPL-2.0-or-later AND GPL-2.0-only AND BSD-3-Clause AND LGPL-2.1-only AND GFDL-1.2-or-later AND BSD-2-Clause
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash on : a language model's rewrite of the original, under its terms