[dpdk-dev] [PATCH 2/2] app/tesetpmd: disable memory locking for bsdapp

[Anatoly Burakov]

If mlockall() is called while allocated VA space is bigger than
amount of available RAM, FreeBSD kernel will deadlock and need
a hard reboot. We do allocate big amounts of memory because of
how new memory subsystem works, so calling mlockall() will cause
a deadlock. So, disable mlockall() by default on FreeBSD.

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
---
 app/test-pmd/testpmd.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 77490be..38b8b7a 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -2615,6 +2615,13 @@ main(int argc, char** argv)
 	latencystats_enabled = 0;
 #endif
 
+	/* on FreeBSD, mlockall() is disabled by default */
+#ifdef RTE_EXEC_ENV_BSDAPP
+	do_mlockall = 0;
+#else
+	do_mlockall = 1;
+#endif
+
 	argc -= diag;
 	argv += diag;
 	if (argc > 1)
-- 
2.7.4