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syzkaller/dashboard/config/README.md

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This dir contains kernel configs used by syzbot.

Updating Linux configs

To update the main linux config upstream-kasan.config used by syzbot:

  1. Check out latest linux-next (we tend to use linux-next as it contains the most latest features in a single tree).
  2. Copy the config into kernel tree as .config.
  3. Run make olddefconfig.
  4. Make any additional changes to the config you want to do (e.g. enable/disable some configs with make menuconfig).
  5. Build and boot the kernel. Ensure there are no bugs during boot (in particular, WARNING's and LOCKDEP reports).
  6. Copy back the custom configs into the .config (see comments there).
  7. For compiler you need to use a recent gcc (8+). Some of the debugging configs may be disabled due to old/different compiler, in particular CONFIG_KCOV_ENABLE_COMPARISONS. You may also restore the compiler info part just to reduce the diff size.
  8. Copy the config back as upstream-kasan.config and send a PR. It will be deployed to syzbot within a day after merging.