Author: markj
Date: Tue Oct 15 14:23:16 2019
New Revision: 353557
URL: https://svnweb.freebsd.org/changeset/base/353557
Log:
MFC r353294:
Assert that the PGA_{WRITEABLE,EXECUTABLE} flags do not leak.
Modified:
stable/12/sys/vm/vm_page.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/vm/vm_page.c
==============================================================================
--- stable/12/sys/vm/vm_page.c Tue Oct 15 14:20:11 2019 (r353556)
+++ stable/12/sys/vm/vm_page.c Tue Oct 15 14:23:16 2019 (r353557)
@@ -3401,9 +3401,12 @@ vm_page_free_prep(vm_page_t m)
vm_page_lock_assert(m, MA_OWNED);
KASSERT(!pmap_page_is_mapped(m),
("vm_page_free_prep: freeing mapped page %p", m));
- } else
+ KASSERT((m->aflags & (PGA_EXECUTABLE | PGA_WRITEABLE)) == 0,
+ ("vm_page_free_prep: mapping flags set in page %p", m));
+ } else {
KASSERT(m->queue == PQ_NONE,
("vm_page_free_prep: unmanaged page %p is queued", m));
+ }
VM_CNT_INC(v_tfree);
if (vm_page_sbusied(m))
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