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
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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	Update.	1999-10-04 22:59:43 +00:00
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	* malloc/tst-mallocfork.c (do_test): Make sure sa_flags is	2005-12-06 00:50:15 +00:00
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