PROBE::SIGNAL.SYS\_(3stap) Signal Tapset PROBE::SIGNAL.SYS\_(3stap)

# [NAME](#NAME)

probe::signal.sys\_tkill - Sending a kill signal to a thread

# [SYNOPSIS](#SYNOPSIS)

```
probe signal.sys_tkill {}
```

# [VALUES](#VALUES)

*sig\_pid*

The PID of the process receiving the kill signal

*sig\_name*

A string representation of the signal

*name*

Name of the probe point

*task*

A task handle to the signal recipient

*pid\_name*

The name of the signal recipient

*sig*

The specific signal sent to the process

# [DESCRIPTION](#DESCRIPTION)

The tkill call is analogous to [kill(2)](/man/enterprise-packages/systemtap/kill.2), except that it also allows a process within a specific thread group to be targeted. Such processes are targeted through their unique thread IDs (TID).

# [SEE ALSO0](#SEE_ALSO0)

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

September 2026 SystemTap Tapset Reference Ver

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Document: probe::signal.sys_tkill(3stap) from systemtap 5.6-r0 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git