Caught by UBSan:
../lib/eal/x86/include/rte_atomic_64.h:206:21: runtime error:
member access within misaligned address 0x7ffd9c67f228 for
type 'const rte_int128_t', which requires 16 byte alignment
0x7ffd9c67f228: note: pointer points here
00 00 00 00 c0 5d 3e 00 01 00 00 00 01 00 00 00 00 00 00 00
^
00 00 00 00 00 00 00 00 00 00 00 00
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
../lib/eal/x86/include/rte_atomic_64.h:206:21 in
../lib/eal/x86/include/rte_atomic_64.h:206:21: runtime error:
member access within misaligned address 0x7ffd9c67f228 for type
'const union rte_int128_t::(anonymous at
../lib/eal/include/generic/rte_atomic.h:1102:2)', which requires
16 byte alignment
0x7ffd9c67f228: note: pointer points here
00 00 00 00 c0 5d 3e 00 01 00 00 00 01 00 00 00 00 00 00 00
^
00 00 00 00 00 00 00 00 00 00 00 00
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
../lib/eal/x86/include/rte_atomic_64.h:206:21 in
../lib/eal/x86/include/rte_atomic_64.h:206:16: runtime error:
load of misaligned address 0x7ffd9c67f228 for type
'const uint64_t' (aka 'const unsigned long'), which requires
16 byte alignment
0x7ffd9c67f228: note: pointer points here
00 00 00 00 c0 5d 3e 00 01 00 00 00 01 00 00 00 00 00 00 00
^
00 00 00 00 00 00 00 00 00 00 00 00
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
../lib/eal/x86/include/rte_atomic_64.h:206:21 in
Fixes: 3340202f5954 ("stack: add lock-free implementation")
Cc: sta...@dpdk.org
Signed-off-by: David Marchand <david.march...@redhat.com>
---
lib/stack/rte_stack_lf_c11.h | 8 ++++----
lib/stack/rte_stack_lf_generic.h | 8 ++++----
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/lib/stack/rte_stack_lf_c11.h b/lib/stack/rte_stack_lf_c11.h
index b97e02d6a1..f674731235 100644
--- a/lib/stack/rte_stack_lf_c11.h
+++ b/lib/stack/rte_stack_lf_c11.h
@@ -63,13 +63,13 @@ __rte_stack_lf_push_elems(struct rte_stack_lf_list *list,
struct rte_stack_lf_elem *last,
unsigned int num)
{
- struct rte_stack_lf_head old_head;
+ alignas(16) struct rte_stack_lf_head old_head;
int success;
old_head = list->head;
do {
- struct rte_stack_lf_head new_head;
+ alignas(16) struct rte_stack_lf_head new_head;
/* Swing the top pointer to the first element in the list and
* make the last element point to the old top.
@@ -102,7 +102,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list *list,
void **obj_table,
struct rte_stack_lf_elem **last)
{
- struct rte_stack_lf_head old_head;
+ alignas(16) struct rte_stack_lf_head old_head;
uint64_t len;
int success = 0;
@@ -129,7 +129,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list *list,
/* Pop num elements */
do {
- struct rte_stack_lf_head new_head;
+ alignas(16) struct rte_stack_lf_head new_head;
struct rte_stack_lf_elem *tmp;
unsigned int i;
diff --git a/lib/stack/rte_stack_lf_generic.h b/lib/stack/rte_stack_lf_generic.h
index cc69e4d168..32f56dffdd 100644
--- a/lib/stack/rte_stack_lf_generic.h
+++ b/lib/stack/rte_stack_lf_generic.h
@@ -36,13 +36,13 @@ __rte_stack_lf_push_elems(struct rte_stack_lf_list *list,
struct rte_stack_lf_elem *last,
unsigned int num)
{
- struct rte_stack_lf_head old_head;
+ alignas(16) struct rte_stack_lf_head old_head;
int success;
old_head = list->head;
do {
- struct rte_stack_lf_head new_head;
+ alignas(16) struct rte_stack_lf_head new_head;
/* An acquire fence (or stronger) is needed for weak memory
* models to establish a synchronized-with relationship between
@@ -77,7 +77,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list *list,
void **obj_table,
struct rte_stack_lf_elem **last)
{
- struct rte_stack_lf_head old_head;
+ alignas(16) struct rte_stack_lf_head old_head;
int success = 0;
/* Reserve num elements, if available */
@@ -99,7 +99,7 @@ __rte_stack_lf_pop_elems(struct rte_stack_lf_list *list,
/* Pop num elements */
do {
- struct rte_stack_lf_head new_head;
+ alignas(16) struct rte_stack_lf_head new_head;
struct rte_stack_lf_elem *tmp;
unsigned int i;
--
2.49.0
