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From: wangyunjian <wangyunjian@huawei.com>
To: <dev@dpdk.org>
CC: <i.maximets@samsung.com>, <xudingke@huawei.com>, Yunjian Wang
<wangyunjian@huawei.com>, <stable@dpdk.org>
Date: Wed, 8 May 2019 20:51:38 +0800
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Subject: [dpdk-dev] [PATCH] net/ixgbe: fix cancel link handler when port is
being removed
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Message-ID: <20190508125138.G3BU__9678KOMHPFC9PPycTd45AIkLUTx4eeBZjspno@z>
From: Yunjian Wang <wangyunjian@huawei.com>
The nic's interrupt source has some active handler, which maybe call
ixgbe_dev_link_update() to set link handler. We should cancel the
link handler before remove dev to prevent executing the link handler.
It triggers segfault.
Fixes: 0408f47ba4d6 ("net/ixgbe: fix busy polling while fiber link update")
Cc: stable@dpdk.org
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 975fa47..2470c89 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1344,6 +1344,9 @@ struct rte_ixgbe_xstats_name_off {
/* cancel the delay handler before remove dev */
rte_eal_alarm_cancel(ixgbe_dev_interrupt_delayed_handler, eth_dev);
+ /* cancel the link handler before remove dev */
+ rte_eal_alarm_cancel(ixgbe_dev_setup_link_alarm_handler, eth_dev);
+
/* uninitialize PF if max_vfs not zero */
ixgbe_pf_host_uninit(eth_dev);
--
1.8.3.1