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Date:      Wed, 2 May 2018 02:41:09 +0000 (UTC)
From:      Alexander Motin <mav@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r333158 - head/sys/dev/mpr
Message-ID:  <201805020241.w422f98T023442@repo.freebsd.org>

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Author: mav
Date: Wed May  2 02:41:09 2018
New Revision: 333158
URL: https://svnweb.freebsd.org/changeset/base/333158

Log:
  Clean enclosure_table when resetting num_enc_table_entries to zero.
  
  Garbage left there by r325363 in some scenarios found to lead to later
  enclosure mapping failures.
  
  MFC after:	1 week
  Sponsored by:	iXsystems, Inc.

Modified:
  head/sys/dev/mpr/mpr_mapping.c

Modified: head/sys/dev/mpr/mpr_mapping.c
==============================================================================
--- head/sys/dev/mpr/mpr_mapping.c	Wed May  2 01:32:34 2018	(r333157)
+++ head/sys/dev/mpr/mpr_mapping.c	Wed May  2 02:41:09 2018	(r333158)
@@ -2385,6 +2385,8 @@ fail:
 		 * sc->mapping_table volumes tooi
 		 */
 	}
+	for (enc_idx = 0; enc_idx < sc->num_enc_table_entries; enc_idx++)
+		_mapping_clear_enc_entry(sc->enclosure_table + enc_idx);
 	sc->num_enc_table_entries = 0;
 	return (false);
 }



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