On Thu, 28 May 2026 at 10:47, Thomas Monjalon <[email protected]> wrote: > > Seen in OBS on i586 Debian: > > from ../drivers/net/sxe2/sxe2_txrx_vec_sse.c:5: > In function ‘_mm_loadu_si128’, > inlined from ‘rte_memcpy’ > inlined from ‘sxe2_rx_pkts_refactor’ > at ../drivers/net/sxe2/sxe2_txrx_vec_common.h:233:2: > /usr/lib/gcc/i686-linux-gnu/12/include/emmintrin.h:703:10: error: > array subscript 8 is outside array bounds of ‘struct rte_mbuf *[32]’ > > The important options to reproduce are "-m32 -O2 -march=corei7". > > In 32-bit build the pointer array done_pkts[32] is smaller: > 32 * 4 = 128 bytes > so an SSE access would be outside the bound. > > The libc memcpy does not trigger such warning > and is a good choice to copy an array of pointers. > > Signed-off-by: Thomas Monjalon <[email protected]>
I reproduced and checked Debian 13 32 bits build with OBS. Tested-by: David Marchand <[email protected]> -- David Marchand
