---
name: "valgrind-listener"
section: "1"
platform: "linux"
package: "valgrind"
version: "3.25.1-9"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/valgrind-listener"
---

# valgrind-listener(1)

listens on a socket for Valgrind commentary

## NAME

valgrind-listener - listens on a socket for Valgrind commentary

## SYNOPSIS

**valgrind-listener** \[*options*\]

## DESCRIPTION

**valgrind-listener** accepts (multiple) connections from **valgrind** processes that use the **--log-socket** option on the specified port and copies the commentary it is sent to stdout.

## OPTIONS

- **-e --exit-at-zero**

  When the number of connected processes falls back to zero, exit. Without this, it will run forever, that is, until you send it Control-C.

- **--max-connect=INTEGER**

  By default, the listener can connect to up to 50 processes. Occasionally, that number is too small. Use this option to provide a different limit. E.g. --max-connect=100.

**portnumber**

Changes the port it listens on from the default (1500). The specified port must be in the range 1024 to 65535. The same restriction applies to port numbers specified by a **--log-socket** to Valgrind itself.

## SEE ALSO

[valgrind(1)](/valgrind/1.md), $INSTALL/share/doc/valgrind/html/index.html or http://www.valgrind.org/docs/manual/index.html.

## AUTHOR

Julian Seward.