qvm process exit codes

When a qvm process exits, the shell exit status indicates the reason for the exit.

The codes indicating the reason a qvm process exited include:

No error
  • 0 – the qvm process ran as designed, and terminated in response to a request to shut down or restart that is part of normal operations
VM- and vdev-related errors
  • 3 – the guest was terminated by an action analogous to its power being cut (e.g., its hosting qvm process instance received a SIGQUIT signal)
  • 4 – watchdog-triggered termination
  • 5 – unsupported operation
  • 6 – unexpected vdev error
  • 7 – unexpected error
  • 32 to 63 – the exit code is set by the user; for example, to indicate that a specific vdev caused the exit (see the Virtual Device Developer's Guide)
Fatal errors
  • 64 – fatal error before the guest started (e.g., out of memory)
  • 65 – fatal configuration error
  • 96 – fatal error after guest started

More information

Exit/error codes for qvm are defined in the guest.h public header file.

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