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Subject: Re: Memory leak when raid10 takeover raid0
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To:     Xiao Ni <xni@redhat.com>
Cc:     linux-raid <linux-raid@vger.kernel.org>, Song Liu <song@kernel.org>
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From:   Guoqing Jiang <guoqing.jiang@linux.dev>
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Date:   Wed, 12 Oct 2022 18:58:57 +0800
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On 10/11/22 11:49 PM, Xiao Ni wrote:
>> I finally reproduced it with 6.0 kernel, and It is a NULL dereference.
> That's cool. Could you share the steps?

Do the two things simultaneously.

1. write to raid0
2. echo raid10 > /sys/block/md/mdx/level

Thanks,
Guoqing