On Fri, Dec 15, 2017 at 10:04:32 +0800, weiping zhang <zwp10758@xxxxxxxxx> wrote:
I just want to know WARN_ON WHAT in device_add_disk, if bdi_register_owner return error code, it may fail at any step of following:
Was that output in the original boot log? I didn't see anything there that had the string WARN_ON. The first log was from a Fedora kernel. The second from a kernel I built. I used a Fedora config though. The config was probably from one of their nodebug kernels, I could build another one using a config from a debug kernel. Would that likely provide what you are looking for?
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