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From hwri...@apache.org
Subject svn commit: r1186359 - in /subversion/branches/1.7.x: ./ STATUS subversion/libsvn_fs_fs/fs_fs.c subversion/libsvn_fs_fs/tree.c subversion/libsvn_fs_fs/tree.h
Date Wed, 19 Oct 2011 17:28:55 GMT
Author: hwright
Date: Wed Oct 19 17:28:55 2011
New Revision: 1186359

URL: http://svn.apache.org/viewvc?rev=1186359&view=rev
Log:
Merge r1186121, r1186231 from trunk:

 * r1186121, r1186231
   FSFS: Fix validation so it doesn't hork preexisting repositories that
   triggered a bug once in their history.
   Justification:
     Such repositories are unusable by 1.7.x without this revision.
     Either this must be backported to 1.7.1 or r1186144 must be undone.
   Votes:
     +1: danielsh, stsp, philip

Modified:
    subversion/branches/1.7.x/   (props changed)
    subversion/branches/1.7.x/STATUS
    subversion/branches/1.7.x/subversion/libsvn_fs_fs/fs_fs.c
    subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.c
    subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.h

Propchange: subversion/branches/1.7.x/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Oct 19 17:28:55 2011
@@ -65,4 +65,4 @@
 /subversion/branches/tree-conflicts:868291-873154
 /subversion/branches/tree-conflicts-notify:873926-874008
 /subversion/branches/uris-as-urls:1060426-1064427
-/subversion/trunk:1146013,1146121,1146219,1146222,1146274,1146492,1146555,1146606,1146620,1146684,1146781,1146832,1146834,1146870,1146899,1146904,1147293,1147299,1147309,1147882,1148071,1148083,1148094,1148131,1148374,1148424,1148566,1148588,1148652,1148662,1148699,1148853,1148877,1148882,1148936,1149103,1149105,1149135,1149141,1149160,1149228,1149240,1149343,1149371-1149372,1149377,1149398,1149401,1149539,1149572,1149627,1149675,1149701,1149713,1150242,1150254,1150260-1150261,1150266,1150302,1150327,1150368,1150372,1150441,1150506,1150812,1150853,1151036,1151177,1151610,1151854,1151906,1151911,1152129,1152140,1152189-1152190,1152267,1152282,1152286,1152726,1152809,1153138,1153141,1153416,1153540,1153566,1153799,1153807,1153968,1154009,1154023,1154115,1154119,1154121,1154144,1154155,1154159,1154165,1154215,1154225,1154273,1154278,1154379,1154382,1154461,1154717-1154718,1154733,1154908,1154982,1155015,1155044,1155124,1155131,1155160,1155313,1155334,1155391,1155404,1156085,115
 6098,1156216,1156218,1156312,1156527,1156717,1156721,1156750,1156827,1156838,1157416,1158187,1158193-1158194,1158196,1158201,1158207,1158209-1158210,1158217,1158285,1158288,1158303,1158309,1158407,1158419,1158421,1158436,1158455,1158616-1158617,1158634,1158854,1158875,1158886,1158893,1158896,1158919,1158924,1158963,1159093,1159098,1159101,1159132,1159136,1159148,1159230,1159275,1159400,1159686,1159760,1159772,1160605,1160671,1160682,1160704-1160705,1160756,1161063,1161080,1161185,1161210,1161683,1161721,1162024,1162033,1162201,1162516,1162880,1162974,1162995,1163243,1163383,1163557,1163792,1163953,1164027,1164386,1164426,1164517,1164535,1164554,1164580,1164614,1164645,1164760,1164765,1166500,1166555,1166678,1167062,1167173,1167209,1167269,1167503,1167659,1167681,1169524,1169531,1169650,1171708,1173111,1173425,1173639,1174051,1174060,1174652,1174761,1174797-1174798,1174806,1175888,1176915,1176949,1177001,1177492,1178280,1178282,1178942,1179680,1179767,1180154,1181090,1181110,
 1181155,1181215,1181609,1181666,1182115,1182527,1182904,1182909,1183054,1183263,1183347,1185222,1185242,1185280,1185282,1185730,1185911,1185918
+/subversion/trunk:1146013,1146121,1146219,1146222,1146274,1146492,1146555,1146606,1146620,1146684,1146781,1146832,1146834,1146870,1146899,1146904,1147293,1147299,1147309,1147882,1148071,1148083,1148094,1148131,1148374,1148424,1148566,1148588,1148652,1148662,1148699,1148853,1148877,1148882,1148936,1149103,1149105,1149135,1149141,1149160,1149228,1149240,1149343,1149371-1149372,1149377,1149398,1149401,1149539,1149572,1149627,1149675,1149701,1149713,1150242,1150254,1150260-1150261,1150266,1150302,1150327,1150368,1150372,1150441,1150506,1150812,1150853,1151036,1151177,1151610,1151854,1151906,1151911,1152129,1152140,1152189-1152190,1152267,1152282,1152286,1152726,1152809,1153138,1153141,1153416,1153540,1153566,1153799,1153807,1153968,1154009,1154023,1154115,1154119,1154121,1154144,1154155,1154159,1154165,1154215,1154225,1154273,1154278,1154379,1154382,1154461,1154717-1154718,1154733,1154908,1154982,1155015,1155044,1155124,1155131,1155160,1155313,1155334,1155391,1155404,1156085,115
 6098,1156216,1156218,1156312,1156527,1156717,1156721,1156750,1156827,1156838,1157416,1158187,1158193-1158194,1158196,1158201,1158207,1158209-1158210,1158217,1158285,1158288,1158303,1158309,1158407,1158419,1158421,1158436,1158455,1158616-1158617,1158634,1158854,1158875,1158886,1158893,1158896,1158919,1158924,1158963,1159093,1159098,1159101,1159132,1159136,1159148,1159230,1159275,1159400,1159686,1159760,1159772,1160605,1160671,1160682,1160704-1160705,1160756,1161063,1161080,1161185,1161210,1161683,1161721,1162024,1162033,1162201,1162516,1162880,1162974,1162995,1163243,1163383,1163557,1163792,1163953,1164027,1164386,1164426,1164517,1164535,1164554,1164580,1164614,1164645,1164760,1164765,1166500,1166555,1166678,1167062,1167173,1167209,1167269,1167503,1167659,1167681,1169524,1169531,1169650,1171708,1173111,1173425,1173639,1174051,1174060,1174652,1174761,1174797-1174798,1174806,1175888,1176915,1176949,1177001,1177492,1178280,1178282,1178942,1179680,1179767,1180154,1181090,1181110,
 1181155,1181215,1181609,1181666,1182115,1182527,1182904,1182909,1183054,1183263,1183347,1185222,1185242,1185280,1185282,1185730,1185911,1185918,1186121,1186231

Modified: subversion/branches/1.7.x/STATUS
URL: http://svn.apache.org/viewvc/subversion/branches/1.7.x/STATUS?rev=1186359&r1=1186358&r2=1186359&view=diff
==============================================================================
--- subversion/branches/1.7.x/STATUS (original)
+++ subversion/branches/1.7.x/STATUS Wed Oct 19 17:28:55 2011
@@ -1,19 +1,4 @@
-      * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-      *                                                     *
-      *  THIS RELEASE STREAM IS OPEN TO BUG FIXES.          *
-      *                                                     *
-      * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
-This file tracks the status of releases in the 1.7.x line.
-
-See http://subversion.apache.org/docs/community-guide/releasing.html#release-stabilization
-for details on how release lines and voting work, what kinds of bugs can
-delay a release, etc.
-
-Status of 1.7.1:
-
-Candidate changes:
-==================
+      '"=============
 
  * r1147540, r1147541
    Remove unused variables in build system.
@@ -78,12 +63,3 @@ Veto-blocked changes:
 
 Approved changes:
 =================
-
- * r1186121, r1186231
-   FSFS: Fix validation so it doesn't hork preexisting repositories that
-   triggered a bug once in their history.
-   Justification:
-     Such repositories are unusable by 1.7.x without this revision.
-     Either this must be backported to 1.7.1 or r1186144 must be undone.
-   Votes:
-     +1: danielsh, stsp, philip

Modified: subversion/branches/1.7.x/subversion/libsvn_fs_fs/fs_fs.c
URL: http://svn.apache.org/viewvc/subversion/branches/1.7.x/subversion/libsvn_fs_fs/fs_fs.c?rev=1186359&r1=1186358&r2=1186359&view=diff
==============================================================================
--- subversion/branches/1.7.x/subversion/libsvn_fs_fs/fs_fs.c (original)
+++ subversion/branches/1.7.x/subversion/libsvn_fs_fs/fs_fs.c Wed Oct 19 17:28:55 2011
@@ -5874,17 +5874,50 @@ write_hash_rep(svn_filesize_t *size,
 }
 
 /* Sanity check ROOT_NODEREV, a candidate for being the root node-revision
-   of (not yet committed) revision REV.  Use OCEAN for temporary allocations.
+   of (not yet committed) revision REV in FS.  Use POOL for temporary
+   allocations.
  */
-static APR_INLINE svn_error_t *
-validate_root_noderev(node_revision_t *root_noderev,
-                      svn_revnum_t rev)
-{
-  /* Bogosity seen on svn.apache.org; see
+static svn_error_t *
+validate_root_noderev(svn_fs_t *fs,
+                      node_revision_t *root_noderev,
+                      svn_revnum_t rev,
+                      apr_pool_t *pool)
+{
+  svn_revnum_t head_revnum = rev-1;
+  int head_predecessor_count;
+
+  SVN_ERR_ASSERT(rev > 0);
+
+  /* Compute HEAD_PREDECESSOR_COUNT. */
+  {
+    svn_fs_root_t *head_revision;
+    const svn_fs_id_t *head_root_id;
+    node_revision_t *head_root_noderev;
+
+    /* Get /@HEAD's noderev. */
+    SVN_ERR(svn_fs_fs__revision_root(&head_revision, fs, head_revnum, pool));
+    SVN_ERR(svn_fs_fs__node_id(&head_root_id, head_revision, "/", pool));
+    SVN_ERR(svn_fs_fs__get_node_revision(&head_root_noderev, fs, head_root_id,
+                                         pool));
+
+    head_predecessor_count = head_root_noderev->predecessor_count;
+  }
+
+  /* Check that the root noderev's predecessor count equals REV.
+
+     This kind of corruption was seen on svn.apache.org (both on
+     the root noderev and on other fspaths' noderevs); see
        http://mid.gmane.org/20111002202833.GA12373@daniel3.local
+
+     Normally (rev == root_noderev->predecessor_count), but here we
+     use a more roundabout check that should only trigger on new instances
+     of the corruption, rather then trigger on each and every new commit
+     to a repository that has triggered the bug somewhere in its root
+     noderev's history.
    */
   if (root_noderev->predecessor_count != -1
-      && root_noderev->predecessor_count != rev)
+      && (root_noderev->predecessor_count - head_predecessor_count)
+         != (rev - head_revnum))
     {
       return svn_error_createf(SVN_ERR_FS_CORRUPT, NULL,
                                _("predecessor count for "
@@ -6065,7 +6098,7 @@ write_final_rev(const svn_fs_id_t **new_
 
   /* Write out our new node-revision. */
   if (at_root)
-    SVN_ERR(validate_root_noderev(noderev, rev));
+    SVN_ERR(validate_root_noderev(fs, noderev, rev, pool));
   SVN_ERR(svn_fs_fs__write_noderev(svn_stream_from_aprfile2(file, TRUE, pool),
                                    noderev, ffd->format,
                                    svn_fs_fs__fs_supports_mergeinfo(fs),

Modified: subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.c
URL: http://svn.apache.org/viewvc/subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.c?rev=1186359&r1=1186358&r2=1186359&view=diff
==============================================================================
--- subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.c (original)
+++ subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.c Wed Oct 19 17:28:55 2011
@@ -870,11 +870,11 @@ add_change(svn_fs_t *fs,
 
 /* Get the id of a node referenced by path PATH in ROOT.  Return the
    id in *ID_P allocated in POOL. */
-static svn_error_t *
-fs_node_id(const svn_fs_id_t **id_p,
-           svn_fs_root_t *root,
-           const char *path,
-           apr_pool_t *pool)
+svn_error_t *
+svn_fs_fs__node_id(const svn_fs_id_t **id_p,
+                   svn_fs_root_t *root,
+                   const char *path,
+                   apr_pool_t *pool)
 {
   if ((! root->is_txn_root)
       && (path[0] == '\0' || ((path[0] == '/') && (path[1] == '\0'))))
@@ -939,7 +939,7 @@ node_kind(svn_node_kind_t *kind_p,
   dag_node_t *node;
 
   /* Get the node id. */
-  SVN_ERR(fs_node_id(&node_id, root, path, pool));
+  SVN_ERR(svn_fs_fs__node_id(&node_id, root, path, pool));
 
   /* Use the node id to get the real kind. */
   SVN_ERR(svn_fs_fs__dag_get_node(&node, root->fs, node_id, pool));
@@ -2975,7 +2975,7 @@ fs_node_origin_rev(svn_revnum_t *revisio
   path = svn_fs__canonicalize_abspath(path, pool);
 
   /* Check the cache first. */
-  SVN_ERR(fs_node_id(&given_noderev_id, root, path, pool));
+  SVN_ERR(svn_fs_fs__node_id(&given_noderev_id, root, path, pool));
   node_id = svn_fs_fs__id_node_id(given_noderev_id);
 
   /* Is it a brand new uncommitted node? */
@@ -3047,7 +3047,7 @@ fs_node_origin_rev(svn_revnum_t *revisio
       }
 
     /* Walk the predecessor links back to origin. */
-    SVN_ERR(fs_node_id(&pred_id, curroot, lastpath->data, predidpool));
+    SVN_ERR(svn_fs_fs__node_id(&pred_id, curroot, lastpath->data, predidpool));
     while (pred_id)
       {
         svn_pool_clear(subpool);
@@ -3682,7 +3682,7 @@ static root_vtable_t root_vtable = {
   fs_paths_changed,
   svn_fs_fs__check_path,
   fs_node_history,
-  fs_node_id,
+  svn_fs_fs__node_id,
   svn_fs_fs__node_created_rev,
   fs_node_origin_rev,
   fs_node_created_path,

Modified: subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.h
URL: http://svn.apache.org/viewvc/subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.h?rev=1186359&r1=1186358&r2=1186359&view=diff
==============================================================================
--- subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.h (original)
+++ subversion/branches/1.7.x/subversion/libsvn_fs_fs/tree.h Wed Oct 19 17:28:55 2011
@@ -61,6 +61,13 @@ svn_fs_fs__check_path(svn_node_kind_t *k
                       const char *path,
                       apr_pool_t *pool);
 
+/* Implement root_vtable_t.node_id(). */
+svn_error_t *
+svn_fs_fs__node_id(const svn_fs_id_t **id_p,
+                   svn_fs_root_t *root,
+                   const char *path,
+                   apr_pool_t *pool);
+
 /* Set *REVISION to the revision in which PATH under ROOT was created.
    Use POOL for any temporary allocations.  If PATH is in an
    uncommitted transaction, *REVISION will be set to



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