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From: Olivier Matz <olivier.matz@6wind.com>
To: dev@dpdk.org
Cc: "Harry van Haaren" <harry.van.haaren@intel.com>,
	"Bruce Richardson" <bruce.richardson@intel.com>,
	"David Hunt" <david.hunt@intel.com>,
	"Anatoly Burakov" <anatoly.burakov@intel.com>,
	"Morten Brørup" <mb@smartsharesystems.com>,
	"Andrew Rybchenko" <andrew.rybchenko@oktetlabs.ru>,
	stable@dpdk.org
Subject: [PATCH 1/2] event/sw: fix missing flow ID init in selftest
Date: Fri, 14 Oct 2022 22:37:09 +0200	[thread overview]
Message-ID: <20221014203710.6172-1-olivier.matz@6wind.com> (raw)

The issue is seen by unit tests:

> root@dpdk-VF-dut247:~/dpdk# MALLOC_PERTURB_=204 \
>   DPDK_TEST=eventdev_selftest_sw \
>   /root/dpdk/x86_64-native-linuxapp-gcc/app/test/dpdk-test -c 0xff
> (...)
> *** Running XStats ID Reset test...
> 12: 1761: qid_0_port_2_pinned_flows value , expected 1 got 7
> 1778: qid_0_port_2_pinned_flows value incorrect, expected 1 got 7
> ERROR - XStats ID Reset test FAILED.
> SW Eventdev Selftest Failed.
> Test Failed

The flow id is not set in the event, which results in an undefined
flow, whose value depends on what was previously in stack. Having
different flows for the packets makes the test to fail, since only one
flow is expected.

This only happens in -O3, where the same stack area is shared by the
event object and the address of the mbuf allocated in rte_gen_arp().

Fix this by properly initializing the flow id.

Bugzilla ID: 1101
Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
 drivers/event/sw/sw_evdev_selftest.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/event/sw/sw_evdev_selftest.c b/drivers/event/sw/sw_evdev_selftest.c
index ed7ae6a685..4f18d66f36 100644
--- a/drivers/event/sw/sw_evdev_selftest.c
+++ b/drivers/event/sw/sw_evdev_selftest.c
@@ -1489,6 +1489,7 @@ xstats_id_reset_tests(struct test *t)
 			goto fail;
 		}
 		ev.queue_id = t->qid[i];
+		ev.flow_id = 0;
 		ev.op = RTE_EVENT_OP_NEW;
 		ev.mbuf = arp;
 		*rte_event_pmd_selftest_seqn(arp) = i;
-- 
2.30.2


             reply	other threads:[~2022-10-14 20:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-14 20:37 Olivier Matz [this message]
2022-10-14 20:37 ` [PATCH 2/2] event/sw: fix invalid log " Olivier Matz
2022-10-19 14:07   ` Jerin Jacob
2022-10-15  8:25 ` [PATCH 1/2] event/sw: fix missing flow ID init " Morten Brørup
2022-10-17  7:30 ` David Marchand

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