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| author | Jason Evans <je@fb.com> | 2013-02-01 00:53:58 (GMT) |
|---|---|---|
| committer | Jason Evans <je@fb.com> | 2013-02-01 00:53:58 (GMT) |
| commit | a7a28c334e5526ba716bf6046eab8d60598183eb (patch) | |
| tree | 104603607d9fd1940ca8a0a3d1db738639266a12 /ChangeLog | |
| parent | d0e942e4669b8600b0bd7e5ae132ae26d10a40ed (diff) | |
| download | jemalloc-a7a28c334e5526ba716bf6046eab8d60598183eb.zip jemalloc-a7a28c334e5526ba716bf6046eab8d60598183eb.tar.gz jemalloc-a7a28c334e5526ba716bf6046eab8d60598183eb.tar.bz2 | |
Fix a chunk recycling bug.
Fix a chunk recycling bug that could cause the allocator to lose track
of whether a chunk was zeroed. On FreeBSD, NetBSD, and OS X, it could
cause corruption if allocating via sbrk(2) (unlikely unless running with
the "dss:primary" option specified). This was completely harmless on
Linux unless using mlockall(2) (and unlikely even then, unless the
--disable-munmap configure option or the "dss:primary" option was
specified). This regression was introduced in 3.1.0 by the
mlockall(2)/madvise(2) interaction fix.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -9,6 +9,14 @@ found in the git revision history: * 3.x.x (XXX Not yet released) Bug fixes: + - Fix a chunk recycling bug that could cause the allocator to lose track of + whether a chunk was zeroed. On FreeBSD, NetBSD, and OS X, it could cause + corruption if allocating via sbrk(2) (unlikely unless running with the + "dss:primary" option specified). This was completely harmless on Linux + unless using mlockall(2) (and unlikely even then, unless the + --disable-munmap configure option or the "dss:primary" option was + specified). This regression was introduced in 3.1.0 by the + mlockall(2)/madvise(2) interaction fix. - Fix TLS-related memory corruption that could occur during thread exit if the thread never allocated memory. Only the quarantine and prof facilities were susceptible. |