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| author | Sverker Eriksson <[email protected]> | 2015-04-08 17:02:15 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2015-04-08 17:02:15 +0200 |
| commit | a4d1a73370dffa6ac96ee70693fd1bd335bd70fe (patch) | |
| tree | 83a69c294e8cd1c620d7d07408db08dcc5d1c011 /erts/emulator | |
| parent | 64bebeaf45403feeac45a8c2b6226d6bc8b71b72 (diff) | |
| download | otp-a4d1a73370dffa6ac96ee70693fd1bd335bd70fe.tar.gz otp-a4d1a73370dffa6ac96ee70693fd1bd335bd70fe.tar.bz2 otp-a4d1a73370dffa6ac96ee70693fd1bd335bd70fe.zip | |
erts: Fix ets bug in debug VM
Symptom: ASSERT(segtab[seg_ix] == NULL) in alloc_seg() fails.
Remedy: Make sure we set segment pointer to NULL in free_seg()
even when we switch to smaller segtab.
Diffstat (limited to 'erts/emulator')
| -rw-r--r-- | erts/emulator/beam/erl_db_hash.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c index 06dac8f161..b1d9eb84bc 100644 --- a/erts/emulator/beam/erl_db_hash.c +++ b/erts/emulator/beam/erl_db_hash.c @@ -2402,10 +2402,10 @@ static int alloc_seg(DbTableHash *tb) */ static int free_seg(DbTableHash *tb, int free_records) { - int seg_ix = (tb->nslots >> SEGSZ_EXP) - 1; + const int seg_ix = (tb->nslots >> SEGSZ_EXP) - 1; + struct segment** const segtab = SEGTAB(tb); + struct ext_segment* const top = (struct ext_segment*) segtab[seg_ix]; int bytes; - struct segment** segtab = SEGTAB(tb); - struct ext_segment* top = (struct ext_segment*) segtab[seg_ix]; int nrecords = 0; ASSERT(top != NULL); @@ -2468,7 +2468,7 @@ static int free_seg(DbTableHash *tb, int free_records) (void*)top, bytes); #ifdef DEBUG if (seg_ix > 0) { - if (seg_ix < tb->nsegs) SEGTAB(tb)[seg_ix] = NULL; + segtab[seg_ix] = NULL; } else { SET_SEGTAB(tb, NULL); } |