Issue with kernel 6.8.0-40-generic?

[Steve French]

Good catch - it does look like a regression introduced by:

        cad3fc0a4c8c ("cifs: Throw -EOPNOTSUPP error on unsupported
reparse point type from parse_reparse_point()")

The "unhandled reparse tag: 0x9000701a" looks like (based on MS-FSCC
document) refers to

    "IO_REPARSE_TAG_CLOUD_7   0x9000701A  Used by the Cloud Files
filter, for files managed by a sync engine such as OneDrive"

Will need to revert that as it looks like there are multiple reparse
tags that it will break not just the onedrive one above


On Fri, Apr 4, 2025 at 10:24 PM Junwen Sun <sunjw8888 at gmail.com> wrote:
>
> Dear all,
>
> This is my first time submit an issue about kernel, if I am doing this
> wrong, please correct me.
>
> I'm using Debian testing amd64 as a home server. Recently, it updated
> to linux-image-6.12.20-amd64 and I found that it couldn't mount
> OneDrive shared folder using cifs. If I boot the system with 6.12.19,
> then there is no such problem.
>
> It just likes the issue Marc encountered in this thread. And the issue
> was fixed by commit 'ec686804117a0421cf31d54427768aaf93aa0069'. So,
> I've done some research and found that in 6.12.20, there is a new
> commit 'fef9d44b24be9b6e3350b1ac47ff266bd9808246' in cifs which almost
> revert the commit 'ec686804117a0421cf31d54427768aaf93aa0069'. I guess
> it brings the same issue back to 6.12.20.
>
> Thanks very much in advance if someone can have a look into this issue again.
>
> 孙峻文
> Sun Junwen



-- 
Thanks,

Steve