PROBE::VM.BRK(3stap) Memory Tapset PROBE::VM.BRK(3stap)

# [NAME](#NAME)

probe::vm.brk - Fires when a brk is requested (i.e. the heap will be resized)

# [SYNOPSIS](#SYNOPSIS)

```
probe vm.brk {}
```

# [VALUES](#VALUES)

*address*

the requested address

*length*

the length of the memory segment

*name*

name of the probe point

# [CONTEXT](#CONTEXT)

The process calling brk.

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::memory*(3stap)](/man/enterprise-packages/systemtap/tapset::memory.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: probe::vm.brk(3stap) from systemtap 5.6-r1 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git