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
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
mcheck-init.c
mcheck.c	Do not use __ptr_t.	2017-08-08 17:14:49 +00:00
mcheck.h
memusage.c
memusage.sh
memusagestat.c
morecore.c
mtrace.c	Mark __dso_handle as hidden [BZ #18822]	2017-09-26 16:53:44 -07:00
mtrace.pl
obstack.c
obstack.h
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
thread-freeres.c
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
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
tst-interpose-aux-thread.c
tst-interpose-aux.c
tst-interpose-aux.h
tst-interpose-nothread.c
tst-interpose-skeleton.c
tst-interpose-static-nothread.c
tst-interpose-static-thread.c
tst-interpose-thread.c
tst-malloc-backtrace.c
tst-malloc-fork-deadlock.c
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
tst-malloc-thread-fail.c
tst-malloc-usable-static-tunables.c
tst-malloc-usable-static.c
tst-malloc-usable-tunables.c
tst-malloc-usable.c
tst-malloc.c
tst-mallocfork2.c
tst-mallocfork.c
tst-mallocstate.c	Fix tests that are testing obsoleted functionality	2017-09-05 12:24:00 -07:00
tst-mallopt.c
tst-mcheck.c
tst-memalign.c
tst-mtrace.c
tst-mtrace.sh
tst-obstack.c
tst-posix_memalign.c
tst-pvalloc.c
tst-realloc.c
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
tst-valloc.c
Versions	Implement allocation buffers for internal use	2017-06-21 22:43:57 +02:00