On 2024-11-08 14:08, Thomas Monjalon wrote:
The memory allocated with _aligned_malloc()
must be released with _aligned_free() on Windows.

The POSIX free() was called in eal_lcore_var_cleanup(),

Referring to free() as a part of POSIX is true, but a bit misleading, since it's also standard C.

called in rte_eal_cleanup(), and triggered a heap corruption:
exit status 3221226356 or signal 3221226228 SIGinvalid
with MALLOC_PERTURB_=86

Fixes: 5bce9bed67ad ("eal: add static per-lcore memory allocation facility")

Reported-by: David Marchand <david.march...@redhat.com>
Signed-off-by: Thomas Monjalon <tho...@monjalon.net>
---
  lib/eal/common/eal_common_lcore_var.c | 5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/eal/common/eal_common_lcore_var.c 
b/lib/eal/common/eal_common_lcore_var.c
index 0e9e8e4804..a1b2458839 100644
--- a/lib/eal/common/eal_common_lcore_var.c
+++ b/lib/eal/common/eal_common_lcore_var.c
@@ -54,7 +54,6 @@ lcore_var_alloc(size_t size, size_t align)
                current_buffer = _aligned_malloc(alloc_size, 
RTE_CACHE_LINE_SIZE);
  #else
                current_buffer = aligned_alloc(RTE_CACHE_LINE_SIZE, alloc_size);
-
  #endif
                RTE_VERIFY(current_buffer != NULL);
@@ -108,7 +107,11 @@ eal_lcore_var_cleanup(void)
        while (current_buffer != NULL) {
                struct lcore_var_buffer *prev = current_buffer->prev;
+#ifdef RTE_EXEC_ENV_WINDOWS
+               _aligned_free(current_buffer);
+#else
                free(current_buffer);
+#endif
current_buffer = prev;
        }

Reviewed-by: Mattias Rönnblom <mattias.ronnb...@ericsson.com>

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