[Bug libc/24014] no results from readdir on host-mapped filesystem in Qemu with old host kernel

[patrickdepinguin at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=24014

--- Comment #3 from Thomas De Schampheleire <patrickdepinguin at gmail dot com> ---
(In reply to Thomas De Schampheleire from comment #2)
> (In reply to Florian Weimer from comment #1)
> > What's the file system on the host that is exported using 9p?  Is it ext4?
> > 
> > Can you try this with XFS instead?  Thanks.
> 
> I think it is indeed ext4, but the machine is down now for end-of-year
> maintenance. I will be able to verify it next week.
> There is no existing XFS filesystem on the machine, but I will try creating
> an XFS filesystem in a regular file via loop mount. Would it be sufficient
> for your question?

I confirm that the underlying filesystem of the problematic 9p mount is ext4.
If I change the underlying filesystem to be xfs (via a loop mount on a file),
there is no problem using the test program.

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