Re: [axboe-block:for-6.5/block] [block] 1ccf164ec8: WARNING:at_mm/gup.c:#try_get_folio

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On 12.06.23 14:42, David Howells wrote:
The attached test reproduces the problem on a loop-back mounted file
containing a UDF filesystem.  The key appears to be the consecutive DIOs to
the same page.

The first DIO messes up the refcount (double-unpin?) such that the second one detects the refcount underflow when trying to pin the page again?

--
Cheers,

David / dhildenb




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