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To prevent possible conflict > issues, we lock the dev node when it's in use, preventing other DPDK > processes from starting up and causing problems for us. > > Fixes: 764bf26873b9 ("add FreeBSD support") > Cc: stable@dpdk.org > > Signed-off-by: Bruce Richardson > --- > lib/eal/freebsd/eal_hugepage_info.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/lib/eal/freebsd/eal_hugepage_info.c b/lib/eal/freebsd/eal_hugepage_info.c > index 408f054f7a..4a8d87c23e 100644 > --- a/lib/eal/freebsd/eal_hugepage_info.c > +++ b/lib/eal/freebsd/eal_hugepage_info.c > @@ -90,6 +90,10 @@ eal_hugepage_info_init(void) > RTE_LOG(ERR, EAL, "could not open "CONTIGMEM_DEV"\n"); > return -1; > } > + if (flock(fd, LOCK_EX) < 0) { > + RTE_LOG(ERR, EAL, "could not lock memory. Is another DPDK process running?\n"); > + return -1; > + } > > if (buffer_size >= 1<<30) > RTE_LOG(INFO, EAL, "Contigmem driver has %d buffers, each of size %dGB\n", > This only gets triggered when regular init path is chosen, i.e. --no-huge still works. I'm a bit uneasy with --in-memory mode pretending to work on FreeBSD and Windows, but that's a separate problem :) As far as the patch goes, the problem it addresses does get fixed. Reviewed-by: Anatoly Burakov -- Thanks, Anatoly