project-base/server-skynet-source-3rd-jemalloc
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Fix fork-related bugs.

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Acquire/release arena bin locks as part of the prefork/postfork.  This
bug made deadlock in the child between fork and exec a possibility.

Split jemalloc_postfork() into jemalloc_postfork_{parent,child}() so
that the child can reinitialize mutexes rather than unlocking them.  In
practice, this bug tended not to cause problems.
This commit is contained in:
Jason Evans
2012-03-13 16:31:41 -07:00
parent 824d34e5b7
commit 4e2e3dd9cf
13 changed files with 194 additions and 38 deletions
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include/jemalloc/internal/jemalloc_internal.h.in
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@@ -410,7 +410,8 @@ thread_allocated_t *thread_allocated_get_hard(void);
arena_t *arenas_extend(unsigned ind);
arena_t *choose_arena_hard(void);
void jemalloc_prefork(void);
void jemalloc_postfork(void);
void jemalloc_postfork_parent(void);
void jemalloc_postfork_child(void);
#include "jemalloc/internal/util.h"
#include "jemalloc/internal/atomic.h"