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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Tue, 24 May 2016 10:21:39 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r300596 - head/sys/vm
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Author: kib
Date: Tue May 24 10:21:39 2016
New Revision: 300596
URL: https://svnweb.freebsd.org/changeset/base/300596

Log:
  In vm_page_alloc_contig(), on vm_page_insert() failure, mark each
  freed page as VPO_UNMANAGED.  Otherwise vm_pge_free_toq() insists on
  owning the page lock.
  
  Previously, VPO_UNMANAGED was only set up to the last processed page.
  
  Reviewed by:	alc
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week

Modified:
  head/sys/vm/vm_page.c

Modified: head/sys/vm/vm_page.c
==============================================================================
--- head/sys/vm/vm_page.c	Tue May 24 10:16:03 2016	(r300595)
+++ head/sys/vm/vm_page.c	Tue May 24 10:21:39 2016	(r300596)
@@ -1944,8 +1944,10 @@ retry:
 				    m < &m_ret[npages]; m++) {
 					if ((req & VM_ALLOC_WIRED) != 0)
 						m->wire_count = 0;
-					if (m >= m_tmp)
+					if (m >= m_tmp) {
 						m->object = NULL;
+						m->oflags |= VPO_UNMANAGED;
+					}
 					vm_page_free(m);
 				}
 				return (NULL);