Author: kib
Date: Sun Feb 10 05:40:28 2019
New Revision: 343947
URL: https://svnweb.freebsd.org/changeset/base/343947

Log:
  MFC r343724:
  Do not call PHOLD() while owning the allproc_lock sx.

Modified:
  stable/12/sys/kern/kern_proc.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/kern/kern_proc.c
==============================================================================
--- stable/12/sys/kern/kern_proc.c      Sat Feb  9 23:19:33 2019        
(r343946)
+++ stable/12/sys/kern/kern_proc.c      Sun Feb 10 05:40:28 2019        
(r343947)
@@ -3122,8 +3122,8 @@ allproc_loop:
                        PROC_UNLOCK(p);
                        continue;
                }
-               _PHOLD(p);
                sx_xunlock(&allproc_lock);
+               _PHOLD(p);
                r = thread_single(p, SINGLE_ALLPROC);
                if (r != 0)
                        restart = true;
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