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Relax witness assertions related to prof_gdump().

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In some cases the prof machinery allocates (in order to modify the
bt2gctx hash table), and such operations are synchronized via
bt2gctx_mtx.  Rather than asserting that no locks are held on entry
into functions that may call prof_gdump(), make the weaker assertion
that no "core" locks are held.  The prof machinery enqueues dumps
triggered by prof_gdump() calls when bt2gctx_mtx is held, so this
weakened assertion avoids false failures in such cases.
This commit is contained in:
Jason Evans 2017-02-22 20:58:42 -08:00
parent f56cb9a68e
commit 08c24e7c1a
3 changed files with 19 additions and 6 deletions
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8
include/jemalloc/internal/witness.h
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@ -25,6 +25,14 @@ typedef int witness_comp_t (const witness_t *, const witness_t *);
#define WITNESS_RANK_PROF_TDATA 7U
#define WITNESS_RANK_PROF_GCTX 8U
/*
* Used as an argument to witness_assert_depth_to_rank() in order to validate
* depth excluding non-core locks with lower ranks. Since the rank argument to
* witness_assert_depth_to_rank() is inclusive rather than exclusive, this
* definition can have the same value as the minimally ranked core lock.
*/
#define WITNESS_RANK_CORE 9U
#define WITNESS_RANK_ARENA 9U
#define WITNESS_RANK_ARENA_CHUNKS 10U
#define WITNESS_RANK_ARENA_NODE_CACHE 11U