patches for DPDK stable branches
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From: Kevin Traynor <ktraynor@redhat.com>
To: Yunjian Wang <wangyunjian@huawei.com>
Cc: Ferruh Yigit <ferruh.yigit@intel.com>, dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/tap: fix unexpected link handler' has been queued to LTS release 18.11.9
Date: Thu, 28 May 2020 17:23:10 +0100
Message-ID: <20200528162322.7863-83-ktraynor@redhat.com> (raw)
In-Reply-To: <20200528162322.7863-1-ktraynor@redhat.com>

Hi,

FYI, your patch has been queued to LTS release 18.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/03/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/6b0addc2243b55f7aa7c07dd9a3cd08f11e798fe

Thanks.

Kevin.

---
From 6b0addc2243b55f7aa7c07dd9a3cd08f11e798fe Mon Sep 17 00:00:00 2001
From: Yunjian Wang <wangyunjian@huawei.com>
Date: Thu, 16 Apr 2020 21:50:52 +0800
Subject: [PATCH] net/tap: fix unexpected link handler

[ upstream commit dc1a4d86c63732e57e9593919504e8c81f46fcdf ]

The nic's interrupt source has some active handler, which maybe call
tap_dev_intr_handler() to set link handler. We should cancel the link
handler before close fd to prevent executing the link handler. It
triggers segfault.

Call Trace:
   0x00007f15e08dad99 in __rte_panic (Error adding fd %d epoll_ctl, %s\n")
   0x00007f15e08e9b87 in eal_intr_thread_main ()
   0x00007f15e249be15 in start_thread ()
   0x00007f15d5322f9d in clone ()

Fixes: c0bddd3a057f ("net/tap: add link status notification")

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 drivers/net/tap/rte_eth_tap.c | 27 ++++++++++++++++++++++-----
 1 file changed, 22 insertions(+), 5 deletions(-)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index a1e7eb2bde..d3adde8eb5 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -19,4 +19,5 @@
 #include <rte_ethdev.h>
 #include <rte_errno.h>
+#include <rte_cycles.h>
 
 #include <sys/types.h>
@@ -1521,11 +1522,10 @@ tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)
 {
 	struct pmd_internals *pmd = dev->data->dev_private;
+	int ret;
 
 	/* In any case, disable interrupt if the conf is no longer there. */
 	if (!dev->data->dev_conf.intr_conf.lsc) {
 		if (pmd->intr_handle.fd != -1) {
-			tap_nl_final(pmd->intr_handle.fd);
-			rte_intr_callback_unregister(&pmd->intr_handle,
-				tap_dev_intr_handler, dev);
+			goto clean;
 		}
 		return 0;
@@ -1538,7 +1538,24 @@ tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)
 			&pmd->intr_handle, tap_dev_intr_handler, dev);
 	}
+
+clean:
+	do {
+		ret = rte_intr_callback_unregister(&pmd->intr_handle,
+			tap_dev_intr_handler, dev);
+		if (ret >= 0) {
+			break;
+		} else if (ret == -EAGAIN) {
+			rte_delay_ms(100);
+		} else {
+			TAP_LOG(ERR, "intr callback unregister failed: %d",
+				     ret);
+			break;
+		}
+	} while (true);
+
 	tap_nl_final(pmd->intr_handle.fd);
-	return rte_intr_callback_unregister(&pmd->intr_handle,
-					    tap_dev_intr_handler, dev);
+	pmd->intr_handle.fd = -1;
+
+	return 0;
 }
 
-- 
2.21.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-05-28 17:13:03.398943289 +0100
+++ 0083-net-tap-fix-unexpected-link-handler.patch	2020-05-28 17:12:59.173554771 +0100
@@ -1 +1 @@
-From dc1a4d86c63732e57e9593919504e8c81f46fcdf Mon Sep 17 00:00:00 2001
+From 6b0addc2243b55f7aa7c07dd9a3cd08f11e798fe Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit dc1a4d86c63732e57e9593919504e8c81f46fcdf ]
+
@@ -18 +19,0 @@
-Cc: stable@dpdk.org
@@ -27 +28 @@
-index fea464c3d2..e644f8875b 100644
+index a1e7eb2bde..d3adde8eb5 100644
@@ -36 +37 @@
-@@ -1600,11 +1601,10 @@ tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)
+@@ -1521,11 +1522,10 @@ tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)
@@ -50 +51 @@
-@@ -1617,7 +1617,24 @@ tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)
+@@ -1538,7 +1538,24 @@ tap_lsc_intr_handle_set(struct rte_eth_dev *dev, int set)


  parent reply index

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-28 16:21 [dpdk-stable] patch 'app/pipeline: fix build with gcc 10' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'examples/eventdev: " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'drivers: add crypto as dependency for event drivers' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'eal: fix log message print for regex' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'eal/arm64: fix precise TSC' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'mem: mark pages as not accessed when reserving VA' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'service: fix crash on exit' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'pci: fix build on ppc' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'net/i40e: fix X722 performance' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'doc: fix number of failsafe sub-devices' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'net/sfc: fix reported promiscuous/multicast mode' " Kevin Traynor
2020-05-28 16:21 ` [dpdk-stable] patch 'net/sfc: fix initialization error path' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/sfc: fix Rx queue start failure " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/mlx5: fix mask used for IPv6 item validation' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'ethdev: fix spelling' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/sfc/base: reduce filter priorities to implemented only' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/sfc/base: reject automatic filter creation by users' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/sfc/base: refactor filter lookup loop in EF10' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/sfc/base: handle manual and auto filter clashes " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/mlx5: fix CVLAN tag set in IP item translation' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'contigmem: cleanup properly when load fails' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'devtools: fix symbol map change check' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'test: skip some subtests in no-huge mode' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'test/kvargs: fix to consider empty elements as valid' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'test/kvargs: fix invalid cases check' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'kvargs: fix buffer overflow when parsing list' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'bus/pci: fix devargs on probing again' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'common/qat: fix GEN3 marketing name' " Kevin Traynor
2020-06-04 16:29   ` Trahe, Fiona
2020-06-04 16:36     ` Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'event/dsw: remove redundant control ring poll' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'event/dsw: remove unnecessary read barrier' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'doc: fix sphinx compatibility' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'log: fix level picked with globbing on type register' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'doc: fix matrix CSS for recent sphinx' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'vfio: fix race condition with sysfs' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'vfio: fix use after free with multiprocess' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'drivers: fix log type variables for -fno-common' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'drivers/crypto: " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'test/crypto: fix flag check' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'crypto/openssl: fix out-of-place encryption' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'security: fix verification of parameters' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'security: fix return types in documentation' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'security: fix session counter' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'test: remove redundant macro' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/mlx5: fix validation of VXLAN/VXLAN-GPE specs' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'examples/vmdq: fix output of pools/queues' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/mvneta: do not use PMD log type' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/virtio: " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/tap: " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/bnxt: " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/dpaa: use dynamic " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/thunderx: " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/tap: remove unused assert' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/octeontx: fix meson build for disabled drivers' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: propagate descriptor limits from VF' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: handle Rx packets during multi-channel setup' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: split send buffers from Tx descriptors' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: fix memory free on device close' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: remove process event optimization' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: handle Tx completions based on burst size' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/netvsc: avoid possible live lock' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'ethdev: fix build when vtune profiling is on' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'examples/vmdq: fix RSS configuration' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena/base: make allocation macros thread-safe' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena/base: prevent allocation of zero sized memory' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena/base: fix testing for supported hash function' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena/base: fix documentation of functions' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena/base: fix indentation in CQ polling' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena/base: fix indentation of multiple defines' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/ena: set IO ring size to valid value' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/null: fix secondary burst function selection' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'net/null: remove redundant check' " Kevin Traynor
2020-05-28 16:22 ` [dpdk-stable] patch 'vhost/crypto: add missing user protocol flag' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/vhost: fix potential memory leak on close' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/virtio: fix outdated comment' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'vhost: remove unused variable' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'vhost: make IOTLB cache name unique among processes' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/mlx4: fix build with -fno-common' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/i40e: relax barrier in Tx for NEON' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/tap: fix mbuf and mem leak during queue release' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/tap: fix check for mbuf number of segment' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/tap: fix file close on remove' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/tap: fix fd leak on creation failure' " Kevin Traynor
2020-05-28 16:23 ` Kevin Traynor [this message]
2020-05-28 16:23 ` [dpdk-stable] patch 'net/virtio-user: fix devargs parsing' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/tap: fix queues fd check before close' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/iavf: fix stats query error code' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'net/bnxt: fix VLAN add when port is stopped' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'security: fix crash at accessing non-implemented ops' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'lpm6: fix size of tbl8 group' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'lpm6: fix comments spelling' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'eal: " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'fix various typos found by Lintian' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'app: fix usage help of options separated by dashes' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'usertools: check for pci.ids in /usr/share/misc' " Kevin Traynor
2020-05-28 16:23 ` [dpdk-stable] patch 'bus/pci: fix UIO resource access from secondary process' " Kevin Traynor

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