On 9/1/21 7:06 PM, Christoph Hellwig wrote:
> On Wed, Sep 01, 2021 at 04:47:26PM +0530, Abdul Haleem wrote:
>> Greeting's
>>
>> multiple task hung while adding the vfc disk back to the multipath on my
>> powerpc box running linux-next kernel
> Can you retry to reproduce this with lockdep enabled to see if there
> is anything interesting holding this lock?

LOCKDEP was earlier enabled by default

# cat .config | grep LOCKDEP
CONFIG_LOCKDEP_SUPPORT=y

BTW, Recreated again on 5.15.0-rc2 mainline kernel and attaching the logs

-- 
Regard's

Abdul Haleem
IBM Linux Technology Center