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Date:   Tue, 3 Nov 2020 14:21:43 +0000
From:   Matthew Wilcox <willy@infradead.org>
To:     Wonhyuk Yang <vvghjk1234@gmail.com>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Miklos Szeredi <miklos@szeredi.hu>,
        linux-fsdevel@vger.kernel.org, David Sterba <dsterba@suse.com>
Subject: Re: [PATCH] fuse: fix panic in __readahead_batch()
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On Tue, Nov 03, 2020 at 09:43:49PM +0900, Wonhyuk Yang wrote:
> According to xarray.h, xas_for_each's entry can be RETRY_ENTRY.
> RETRY_ENTRY is defined as 0x402 and accessing that address
> results in panic.

Oh, I sent a patch to fix this to David Sterba back in July.
I guess he didn't merge it.  I'll resend to Andrew.