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From:   Christoph Hellwig <hch@lst.de>
To:     Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc:     Christoph Hellwig <hch@lst.de>, dsterba@suse.cz,
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Subject: Re: [syzbot] KASAN: use-after-free Read in
 copy_page_from_iter_atomic (2)
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References: <0000000000003ce9d105e0db53c8@google.com> <00000000000085068105e112a117@google.com> <20220613193912.GI20633@twin.jikos.cz> <20220614071757.GA1207@lst.de> <2cc67037-cf90-cca2-1655-46b92b43eba8@gmx.com> <20220615132147.GA18252@lst.de> <00bbda63-dc00-05c0-4244-343352591d98@gmx.com>
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On Thu, Jun 16, 2022 at 05:27:04AM +0800, Qu Wenruo wrote:
>> And how do I find out the logic address of the tree root?
>
> For tree root, "btrfs ins dump-super <dev> | grep '^root\s'.
>
> For other tree blocks, "btrfs ins dump-tree <dev>" then with other other
> keywords to grab.

Thanks a lot !