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The config-bisect can take a bad config and bisect it down to find out what config actually breaks the config. But as all tests will apply a minconfig (defined by a user) to apply before booting, it is possible that the minconfig could actually make the bad config work (minconfigs can disable configs). The end result is that the config bisect test will not find a config that breaks. This can be rather frustrating to the user. The CONFIG_BISECT_CHECK option, when set to 1, will make sure that the bad config (with the minconfig applied) still fails before trying to bisect. And yes, I did get burned by this. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> |
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