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- Replace patch for 789238 with official version from upstream.

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This commit is contained in:
Jeff Law 2012-08-10 09:44:26 -06:00
parent d985507603
commit 49bbcdd4a0
3 changed files with 126 additions and 139 deletions
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111
glibc-rh789238-2.patch
View File

@ -1,111 +0,0 @@
diff -rup c/malloc/arena.c d/malloc/arena.c
--- c/malloc/arena.c 2012-04-02 21:21:08.842818529 -0600
+++ d/malloc/arena.c 2012-04-02 21:22:25.943306724 -0600
@@ -121,14 +121,14 @@ int __malloc_initialized = -1;
if(ptr) \
(void)mutex_lock(&ptr->mutex); \
else \
- ptr = arena_get2(ptr, (size)); \
+ ptr = arena_get2(ptr, (size), false); \
} while(0)
#else
# define arena_lock(ptr, size) do { \
if(ptr && !mutex_trylock(&ptr->mutex)) { \
THREAD_STAT(++(ptr->stat_lock_direct)); \
} else \
- ptr = arena_get2(ptr, (size)); \
+ ptr = arena_get2(ptr, (size), false); \
} while(0)
#endif
@@ -782,7 +782,7 @@ get_free_list (void)
static mstate
-reused_arena (void)
+reused_arena (bool retrying)
{
mstate result;
static mstate next_to_use;
@@ -799,6 +799,15 @@ reused_arena (void)
}
while (result != next_to_use);
+ /* If we are retrying due to a failure to allocate in the main
+ arena, don't wait for the main arena to become available, select
+ another.
+
+ To really fix this right we would have to try the allocation
+ in every other arena, but that seems like severe overkill. */
+ if (retrying && result == &main_arena)
+ result = result->next;
+
/* No arena available. Wait for the next in line. */
(void)mutex_lock(&result->mutex);
@@ -813,7 +822,7 @@ reused_arena (void)
static mstate
internal_function
-arena_get2(mstate a_tsd, size_t size)
+arena_get2(mstate a_tsd, size_t size, bool retrying)
{
mstate a;
@@ -858,7 +867,7 @@ arena_get2(mstate a_tsd, size_t size)
catomic_decrement (&narenas);
}
else
- a = reused_arena ();
+ a = reused_arena (retrying);
}
#else
if(!a_tsd)
diff -rup c/malloc/malloc.c d/malloc/malloc.c
--- c/malloc/malloc.c 2012-04-02 21:21:08.984817776 -0600
+++ d/malloc/malloc.c 2012-04-02 21:21:39.533655779 -0600
@@ -2938,7 +2938,7 @@ public_mALLOc(size_t bytes)
/* ... or sbrk() has failed and there is still a chance to mmap() */
mstate prev = ar_ptr->next ? ar_ptr : 0;
(void)mutex_unlock(&ar_ptr->mutex);
- ar_ptr = arena_get2(prev, bytes);
+ ar_ptr = arena_get2(prev, bytes, true);
if(ar_ptr) {
victim = _int_malloc(ar_ptr, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@@ -3117,7 +3117,7 @@ public_mEMALIGn(size_t alignment, size_t
/* ... or sbrk() has failed and there is still a chance to mmap() */
mstate prev = ar_ptr->next ? ar_ptr : 0;
(void)mutex_unlock(&ar_ptr->mutex);
- ar_ptr = arena_get2(prev, bytes);
+ ar_ptr = arena_get2(prev, bytes, true);
if(ar_ptr) {
p = _int_memalign(ar_ptr, alignment, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@@ -3164,7 +3164,7 @@ public_vALLOc(size_t bytes)
/* ... or sbrk() has failed and there is still a chance to mmap() */
mstate prev = ar_ptr->next ? ar_ptr : 0;
(void)mutex_unlock(&ar_ptr->mutex);
- ar_ptr = arena_get2(prev, bytes);
+ ar_ptr = arena_get2(prev, bytes, true);
if(ar_ptr) {
p = _int_memalign(ar_ptr, pagesz, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@@ -3211,7 +3211,7 @@ public_pVALLOc(size_t bytes)
/* ... or sbrk() has failed and there is still a chance to mmap() */
mstate prev = ar_ptr->next ? ar_ptr : 0;
(void)mutex_unlock(&ar_ptr->mutex);
- ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE);
+ ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE, true);
if(ar_ptr) {
p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@@ -3298,7 +3298,7 @@ public_cALLOc(size_t n, size_t elem_size
/* ... or sbrk() has failed and there is still a chance to mmap() */
mstate prev = av->next ? av : 0;
(void)mutex_unlock(&av->mutex);
- av = arena_get2(prev, sz);
+ av = arena_get2(prev, sz, true);
if(av) {
mem = _int_malloc(av, sz);
(void)mutex_unlock(&av->mutex);

139
glibc-rh789238.patch
View File

@ -1,21 +1,116 @@
Only in b/malloc: arena.c.orig
Only in b/malloc: hooks.c.orig
diff -rup a/malloc/malloc.c b/malloc/malloc.c
--- a/malloc/malloc.c 2012-02-14 10:08:22.062534892 -0700
+++ b/malloc/malloc.c 2012-02-14 10:19:43.088724473 -0700
@@ -2936,8 +2936,9 @@ public_mALLOc(size_t bytes)
2012-08-09 Jeff Law <law@redhat.com>
[BZ #13939]
* malloc.c/arena.c (reused_arena): New parameter, avoid_arena.
When avoid_arena is set, don't retry in the that arena. Pick the
next one, whatever it might be.
(arena_get2): New parameter avoid_arena, pass through to reused_arena.
(arena_lock): Pass in new parameter to arena_get2.
* malloc/malloc.c (__libc_memalign): Pass in new parameter to
arena_get2.
(__libc_malloc): Unify retrying after main arena failure with
__libc_memalign version.
(__libc_valloc, __libc_pvalloc, __libc_calloc): Likewise.
diff --git a/malloc/arena.c b/malloc/arena.c
index 33c4ff3..7270bbe 100644
--- a/malloc/arena.c
+++ b/malloc/arena.c
@@ -120,14 +120,14 @@ int __malloc_initialized = -1;
if(ptr) \
(void)mutex_lock(&ptr->mutex); \
else \
- ptr = arena_get2(ptr, (size)); \
+ ptr = arena_get2(ptr, (size), NULL); \
} while(0)
#else
# define arena_lock(ptr, size) do { \
if(ptr && !mutex_trylock(&ptr->mutex)) { \
THREAD_STAT(++(ptr->stat_lock_direct)); \
} else \
- ptr = arena_get2(ptr, (size)); \
+ ptr = arena_get2(ptr, (size), NULL); \
} while(0)
#endif
@@ -778,9 +778,11 @@ get_free_list (void)
return result;
}
-
+/* Lock and return an arena that can be reused for memory allocation.
+ Avoid AVOID_ARENA as we have already failed to allocate memory in
+ it and it is currently locked. */
static mstate
-reused_arena (void)
+reused_arena (mstate avoid_arena)
{
mstate result;
static mstate next_to_use;
@@ -797,6 +799,11 @@ reused_arena (void)
}
while (result != next_to_use);
+ /* Avoid AVOID_ARENA as we have already failed to allocate memory
+ in that arena and it is currently locked. */
+ if (result == avoid_arena)
+ result = result->next;
+
/* No arena available. Wait for the next in line. */
(void)mutex_lock(&result->mutex);
@@ -811,7 +818,7 @@ reused_arena (void)
static mstate
internal_function
-arena_get2(mstate a_tsd, size_t size)
+arena_get2(mstate a_tsd, size_t size, mstate avoid_arena)
{
mstate a;
@@ -856,7 +863,7 @@ arena_get2(mstate a_tsd, size_t size)
catomic_decrement (&narenas);
}
else
- a = reused_arena ();
+ a = reused_arena (avoid_arena);
}
#else
if(!a_tsd)
diff --git a/malloc/malloc.c b/malloc/malloc.c
index 28039b4..1e4f929 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -2865,9 +2865,11 @@ __libc_malloc(size_t bytes)
victim = _int_malloc(ar_ptr, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
} else {
/* ... or sbrk() has failed and there is still a chance to mmap() */
- /* ... or sbrk() has failed and there is still a chance to mmap() */
- ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0, bytes);
- (void)mutex_unlock(&main_arena.mutex);
+ /* ... or sbrk() has failed and there is still a chance to mmap()
+ Grab ar_ptr->next prior to releasing its lock. */
+ mstate prev = ar_ptr->next ? ar_ptr : 0;
+ (void)mutex_unlock(&ar_ptr->mutex);
+ ar_ptr = arena_get2(prev, bytes);
+ ar_ptr = arena_get2(prev, bytes, ar_ptr);
if(ar_ptr) {
victim = _int_malloc(ar_ptr, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@@ -3151,23 +3152,26 @@ public_vALLOc(size_t bytes)
@@ -3043,10 +3045,11 @@ __libc_memalign(size_t alignment, size_t bytes)
p = _int_memalign(ar_ptr, alignment, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
} else {
- /* ... or sbrk() has failed and there is still a chance to mmap() */
+ /* ... or sbrk() has failed and there is still a chance to mmap()
+ Grab ar_ptr->next prior to releasing its lock. */
mstate prev = ar_ptr->next ? ar_ptr : 0;
(void)mutex_unlock(&ar_ptr->mutex);
- ar_ptr = arena_get2(prev, bytes);
+ ar_ptr = arena_get2(prev, bytes, ar_ptr);
if(ar_ptr) {
p = _int_memalign(ar_ptr, alignment, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@@ -3083,23 +3086,27 @@ __libc_valloc(size_t bytes)
if(!ar_ptr)
return 0;
p = _int_valloc(ar_ptr, bytes);
@ -29,11 +124,13 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
p = _int_memalign(ar_ptr, pagesz, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
} else {
/* ... or sbrk() has failed and there is still a chance to mmap() */
- /* ... or sbrk() has failed and there is still a chance to mmap() */
- ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0, bytes);
+ /* ... or sbrk() has failed and there is still a chance to mmap()
+ Grab ar_ptr->next prior to releasing its lock. */
+ mstate prev = ar_ptr->next ? ar_ptr : 0;
+ (void)mutex_unlock(&ar_ptr->mutex);
+ ar_ptr = arena_get2(prev, bytes);
+ ar_ptr = arena_get2(prev, bytes, ar_ptr);
if(ar_ptr) {
p = _int_memalign(ar_ptr, pagesz, bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@ -41,11 +138,11 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
}
- }
+ } else
+ (void)mutex_unlock(&ar_ptr->mutex);
+ (void)mutex_unlock (&ar_ptr->mutex);
assert(!p || chunk_is_mmapped(mem2chunk(p)) ||
ar_ptr == arena_for_chunk(mem2chunk(p)));
@@ -3195,24 +3199,26 @@ public_pVALLOc(size_t bytes)
@@ -3127,24 +3134,27 @@ __libc_pvalloc(size_t bytes)
arena_get(ar_ptr, bytes + 2*pagesz + MINSIZE);
p = _int_pvalloc(ar_ptr, bytes);
@ -59,12 +156,14 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
(void)mutex_unlock(&ar_ptr->mutex);
} else {
/* ... or sbrk() has failed and there is still a chance to mmap() */
- /* ... or sbrk() has failed and there is still a chance to mmap() */
- ar_ptr = arena_get2(ar_ptr->next ? ar_ptr : 0,
- bytes + 2*pagesz + MINSIZE);
+ /* ... or sbrk() has failed and there is still a chance to mmap()
+ Grab ar_ptr->next prior to releasing its lock. */
+ mstate prev = ar_ptr->next ? ar_ptr : 0;
+ (void)mutex_unlock(&ar_ptr->mutex);
+ ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE);
+ ar_ptr = arena_get2(prev, bytes + 2*pagesz + MINSIZE, ar_ptr);
if(ar_ptr) {
p = _int_memalign(ar_ptr, pagesz, rounded_bytes);
(void)mutex_unlock(&ar_ptr->mutex);
@ -76,7 +175,7 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
assert(!p || chunk_is_mmapped(mem2chunk(p)) ||
ar_ptr == arena_for_chunk(mem2chunk(p)));
@@ -3277,8 +3283,6 @@ public_cALLOc(size_t n, size_t elem_size
@@ -3209,8 +3219,6 @@ __libc_calloc(size_t n, size_t elem_size)
#endif
mem = _int_malloc(av, sz);
@ -85,7 +184,7 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
assert(!mem || chunk_is_mmapped(mem2chunk(mem)) ||
av == arena_for_chunk(mem2chunk(mem)));
@@ -3286,21 +3290,23 @@ public_cALLOc(size_t n, size_t elem_size
@@ -3218,21 +3226,24 @@ __libc_calloc(size_t n, size_t elem_size)
if (mem == 0) {
/* Maybe the failure is due to running out of mmapped areas. */
if(av != &main_arena) {
@ -94,13 +193,15 @@ diff -rup a/malloc/malloc.c b/malloc/malloc.c
mem = _int_malloc(&main_arena, sz);
(void)mutex_unlock(&main_arena.mutex);
} else {
/* ... or sbrk() has failed and there is still a chance to mmap() */
- /* ... or sbrk() has failed and there is still a chance to mmap() */
- (void)mutex_lock(&main_arena.mutex);
- av = arena_get2(av->next ? av : 0, sz);
- (void)mutex_unlock(&main_arena.mutex);
+ /* ... or sbrk() has failed and there is still a chance to mmap()
+ Grab av->next prior to releasing its lock. */
+ mstate prev = av->next ? av : 0;
+ (void)mutex_unlock(&av->mutex);
+ av = arena_get2(prev, sz);
+ av = arena_get2(prev, sz, av);
if(av) {
mem = _int_malloc(av, sz);
(void)mutex_unlock(&av->mutex);

15
glibc.spec
View File

@ -28,7 +28,7 @@
Summary: The GNU libc libraries
Name: glibc
Version: %{glibcversion}
Release: 7%{?dist}
Release: 8%{?dist}
# GPLv2+ is used in a bunch of programs, LGPLv2+ is used for libraries.
# Things that are linked directly into dynamically linked programs
# and shared libraries (e.g. crt files, lib*_nonshared.a) have an additional
@ -109,6 +109,7 @@ Patch0034: %{name}-rh841318.patch
#
# Patches from upstream
#
Patch1025: %{name}-rh789238.patch
Patch1035: %{name}-rh845960.patch
@ -141,9 +142,6 @@ Patch2022: %{name}-rh791161.patch
# Upstream BZ 9954
Patch2024: %{name}-rh739743.patch
# Upstream BZ 13939
Patch2025: %{name}-rh789238.patch
#Upstream BZ 13818
Patch2026: %{name}-rh800224.patch
@ -153,9 +151,6 @@ Patch2027: %{name}-rh827510.patch
Patch2028: %{name}-rh803286.patch
# Upstream BZ 13939
Patch2029: %{name}-rh789238-2.patch
# Upstream BZ 13761
Patch2030: %{name}-rh788989-2.patch
@ -413,11 +408,10 @@ rm -rf %{glibcportsdir}
%patch2021 -p1
%patch2022 -p1
%patch2024 -p1
%patch2025 -p1
%patch1025 -p1
%patch2026 -p1
%patch2027 -p1
%patch2028 -p1
%patch2029 -p1
%patch2030 -p1
%patch2031 -p1
%patch2032 -p1
@ -1308,6 +1302,9 @@ rm -f *.filelist*
%endif
%changelog
* Fri Aug 10 2012 Jeff Law <law@redhat.com> - 2.16-8
- Replace patch for 789238 with official version from upstream.
* Wed Jul 25 2012 Jeff Law <law@redhat.com> - 2.16-7
- Pack IPv4 servers at the start of nsaddr_list and
only track the number of IPV4 servers in EXT(statp->nscounti (#808147)