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Kernel parameter: kgdbcon
Kernel parameter: kgdbcon
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Kernel parameter: kgdbcon

Kgdb supports using the gdb serial protocol to send console messages to the debugger when the debugger is connected and running. There are two ways to activate this feature.

  1. Activate with the kernel command line option:

    kgdbcon

  2. Use sysfs before configuring an io driver

    echo 1 > /sys/module/kgdb/parameters/kgdb_use_con

    NOTE: If you do this after you configure the kgdb I/O driver, the setting will not take effect until the next point the I/O is reconfigured.

IMPORTANT NOTE: Using this option with kgdb over the console (kgdboc) or kgdb over ethernet (kgdboe) is not supported.

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Kernel parameter: kgdboe Home Chapter 4. Connecting gdb