Re: ext4: WARNING: CPU: 10 PID: 23340 at fs/block_dev.c

From: Sasha Levin
Date: Thu Apr 09 2015 - 16:49:48 EST

On 04/09/2015 04:27 PM, Theodore Ts'o wrote:
> I tried manually running generic/019, and even though I have
> CONFIG_FAIL_MAKE_REQUEST defined, /sys/kernel/debug/fail_make_request
> isn't present, and so the test complains that I haven't compiled it
> into my kernel --- even though /proc/config.gz confirms that it is
> enabled.
> Is there anything special I have to do to get generic/019 to run?

The only thing I can think of is that maybe debugfs isn't mounted at
all? Do you see anything else in /sys/kernel/debug/?

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