Re: Regression with a0747a859ef6 ("bdi: add error handle for bdi_debug_register")

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On Fri, Dec 22, 2017 at 21:20:10 +0800,
 weiping zhang <zwp10758@xxxxxxxxx> wrote:
2017-12-22 12:53 GMT+08:00 Bruno Wolff III <bruno@xxxxxxxx>:
On Thu, Dec 21, 2017 at 17:16:03 -0600,
 Bruno Wolff III <bruno@xxxxxxxx> wrote:


Enforcing mode alone isn't enough as I tested that one one machine at home
and it didn't trigger the problem. I'll try another machine late tonight.


I got the problem to occur on my i686 machine when booting in enforcing
mode. This machine uses raid 1 vua mdraid which may or may not be a factor
in this problem. The boot log has a trace at the end and might be helpful,
so I'm attaching it here.
Hi Bruno,
I can reproduce this issue in my QEMU test VM easily, just add an soft
RAID1, always trigger
that warning, I'll debug it later.

Great. When you have a fix, I can test it.



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