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1e26d35193
glibc/malloc
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Carlos O'Donell 1e26d35193 malloc: Fix tcache leak after thread destruction [BZ #22111] 
The malloc tcache added in 2.26 will leak all of the elements remaining
in the cache and the cache structure itself when a thread exits. The
defect is that we do not set tcache_shutting_down early enough, and the
thread simply recreates the tcache and places the elements back onto a
new tcache which is subsequently lost as the thread exits (unfreed
memory). The fix is relatively simple, move the setting of
tcache_shutting_down earlier in tcache_thread_freeres. We add a test
case which uses mallinfo and some heuristics to look for unaccounted for
memory usage between the start and end of a thread start/join loop. It
is very reliable at detecting that there is a leak given the number of
iterations.  Without the fix the test will consume 122MiB of leaked
memory.
2017-10-06 09:31:52 -07:00
..
alloc_buffer_alloc_array.c Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00
alloc_buffer_allocate.c Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00
alloc_buffer_copy_bytes.c Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00
alloc_buffer_copy_string.c Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00
alloc_buffer_create_failure.c Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00
arena.c malloc: Remove the internal_function attribute 2017-08-31 15:59:06 +02:00
Depend
dynarray_at_failure.c Add internal facility for dynamic array handling 2017-06-02 11:59:28 +02:00
dynarray_emplace_enlarge.c __libc_dynarray_emplace_enlarge: Add missing else 2017-09-06 16:03:28 +02:00
dynarray_finalize.c Add internal facility for dynamic array handling 2017-06-02 11:59:28 +02:00
dynarray_resize_clear.c Add internal facility for dynamic array handling 2017-06-02 11:59:28 +02:00
dynarray_resize.c dynarray: Set errno on overflow-induced allocation failure 2017-08-30 20:10:56 +02:00
dynarray-skeleton.c dynarray: Implement begin/end functions in the spirit of C++ 2017-06-13 21:55:10 +02:00
dynarray.h dynarray: Use libc_hidden_proto only for !_ISOMAC 2017-06-19 12:58:08 +02:00
hooks.c malloc: Remove the internal_function attribute 2017-08-31 15:59:06 +02:00
Makefile malloc: Fix tcache leak after thread destruction [BZ #22111] 2017-10-06 09:31:52 -07:00
malloc-hooks.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
malloc-internal.h malloc: Remove the internal_function attribute 2017-08-31 15:59:06 +02:00
malloc.c malloc: Fix tcache leak after thread destruction [BZ #22111] 2017-10-06 09:31:52 -07:00
malloc.h Add reallocarray function 2017-05-30 18:27:57 -03:00
mallocbug.c Reformat malloc to gnu style. 2014-01-02 09:40:10 +01:00
mcheck-init.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mcheck.c Do not use __ptr_t. 2017-08-08 17:14:49 +00:00
mcheck.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memusage.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memusage.sh Update copyright dates not handled by scripts/update-copyrights. 2017-01-01 00:26:24 +00:00
memusagestat.c Update copyright dates not handled by scripts/update-copyrights. 2017-01-01 00:26:24 +00:00
morecore.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mtrace.c Mark __dso_handle as hidden [BZ #18822] 2017-09-26 16:53:44 -07:00
mtrace.pl Update copyright dates not handled by scripts/update-copyrights. 2017-01-01 00:26:24 +00:00
obstack.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
obstack.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
reallocarray.c Add reallocarray function 2017-05-30 18:27:57 -03:00
scratch_buffer_grow_preserve.c scratch_buffer: use union for internal buffer 2017-09-25 18:04:22 -07:00
scratch_buffer_grow.c Sync scratch_buffer with gnulib 2017-09-08 15:51:34 +02:00
scratch_buffer_set_array_size.c Sync scratch_buffer with gnulib 2017-09-08 15:51:34 +02:00
set-freeres.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
thread-freeres.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-alloc_buffer.c Prevent an implicit int promotion in malloc/tst-alloc_buffer.c 2017-06-26 09:56:26 -03:00
tst-calloc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-dynarray-at-fail.c Add internal facility for dynamic array handling 2017-06-02 11:59:28 +02:00
tst-dynarray-fail.c Add internal facility for dynamic array handling 2017-06-02 11:59:28 +02:00
tst-dynarray-shared.h dynarray: Implement begin/end functions in the spirit of C++ 2017-06-13 21:55:10 +02:00
tst-dynarray.c dynarray: Set errno on overflow-induced allocation failure 2017-08-30 20:10:56 +02:00
tst-interpose-aux-nothread.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-aux-thread.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-aux.c Fix failing test malloc/tst-interpose-nothread with GCC 7. 2017-03-21 16:41:56 +01:00
tst-interpose-aux.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-nothread.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-skeleton.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-static-nothread.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-static-thread.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-interpose-thread.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-malloc-backtrace.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-malloc-fork-deadlock.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-malloc-tcache-leak.c malloc: Fix tcache leak after thread destruction [BZ #22111] 2017-10-06 09:31:52 -07:00
tst-malloc-thread-exit.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-malloc-thread-fail.c Increase some test timeouts. 2017-01-05 17:39:38 +00:00
tst-malloc-usable-static-tunables.c Initialize tunable list with the GLIBC_TUNABLES environment variable 2016-12-31 23:49:24 +05:30
tst-malloc-usable-static.c Add framework for tunables 2016-12-31 23:49:24 +05:30
tst-malloc-usable-tunables.c Initialize tunable list with the GLIBC_TUNABLES environment variable 2016-12-31 23:49:24 +05:30
tst-malloc-usable.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-malloc.c Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
tst-mallocfork2.c Increase some test timeouts. 2017-01-05 17:39:38 +00:00
tst-mallocfork.c
tst-mallocstate.c Fix tests that are testing obsoleted functionality 2017-09-05 12:24:00 -07:00
tst-mallopt.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-mcheck.c Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
tst-memalign.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-mtrace.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-mtrace.sh Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-obstack.c Modify several tests to use test-skeleton.c 2014-11-05 15:24:08 +05:30
tst-posix_memalign.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-pvalloc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-realloc.c Split DIAG_* macros to new header libc-diag.h. 2017-02-25 09:59:46 -05:00
tst-reallocarray.c Add reallocarray function 2017-05-30 18:27:57 -03:00
tst-scratch_buffer.c scratch_buffer: use union for internal buffer 2017-09-25 18:04:22 -07:00
tst-trim1.c * malloc/tst-trim1.c: New file. 2007-12-16 22:57:57 +00:00
tst-valloc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Versions Implement allocation buffers for internal use 2017-06-21 22:43:57 +02:00