On 7/27/20 9:25 AM, Mark Johnston wrote:
+
+       /*
+        * We may be attempting to free the page as part of the handling for an
+        * I/O error, in which case the page was xbusied by a different thread.
+        */
+       vm_page_xbusy_claim(m);

I've just noticed that vm_page_xbusy_claim() ignores the WAITERS bit. Is this not a problem in practice?

Eric
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