From: Stephen Hemminger <stephen@networkplumber.org> To: dev@dpdk.org Cc: Stephen Hemminger <stephen@networkplumber.org>, qi.z.zhang@intel.com, stable@dpdk.org, Anatoly Burakov <anatoly.burakov@intel.com> Subject: [dpdk-dev] [PATCH v2 5/8] eal: mp: end the multiprocess thread during cleanup Date: Tue, 28 Apr 2020 16:14:12 -0700 Message-ID: <20200428231415.17985-6-stephen@networkplumber.org> (raw) In-Reply-To: <20200428231415.17985-1-stephen@networkplumber.org> When rte_eal_cleanup is called, all control threads should exit. For the mp thread, this best handled by closing the mp_socket and letting the thread see that. This also fixes potential problems where the mp_socket gets another hard error, and the thread runs away repeating itself by reading the same error. Fixes: 85d6815fa6d0 ("eal: close multi-process socket during cleanup") Cc: qi.z.zhang@intel.com Cc: stable@dpdk.org Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Anatoly Burakov <anatoly.burakov@intel.com> --- lib/librte_eal/common/eal_common_proc.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/lib/librte_eal/common/eal_common_proc.c b/lib/librte_eal/common/eal_common_proc.c index 935e8fefeba8..f369d8bf6dd8 100644 --- a/lib/librte_eal/common/eal_common_proc.c +++ b/lib/librte_eal/common/eal_common_proc.c @@ -276,8 +276,17 @@ read_msg(struct mp_msg_internal *m, struct sockaddr_un *s) msgh.msg_control = control; msgh.msg_controllen = sizeof(control); +retry: msglen = recvmsg(mp_fd, &msgh, 0); + + /* zero length message means socket was closed */ + if (msglen == 0) + return 0; + if (msglen < 0) { + if (errno == EINTR) + goto retry; + RTE_LOG(ERR, EAL, "recvmsg failed, %s\n", strerror(errno)); return -1; } @@ -305,7 +314,7 @@ read_msg(struct mp_msg_internal *m, struct sockaddr_un *s) RTE_LOG(ERR, EAL, "invalid received data length\n"); return -1; } - return 0; + return msglen; } static void @@ -376,10 +385,8 @@ mp_handle(void *arg __rte_unused) struct mp_msg_internal msg; struct sockaddr_un sa; - while (1) { - if (read_msg(&msg, &sa) == 0) - process_msg(&msg, &sa); - } + while (read_msg(&msg, &sa) > 0) + process_msg(&msg, &sa); return NULL; } -- 2.20.1
next prev parent reply other threads:[~2020-04-28 23:15 UTC|newest] Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-04 1:33 [dpdk-dev] [PATCH 00/14] cleanup resources on shutdown Stephen Hemminger 2020-01-04 1:33 ` [dpdk-dev] [PATCH 01/14] eal: log: close on cleanup Stephen Hemminger 2020-01-04 1:33 ` [dpdk-dev] [PATCH 02/14] eal: log: free dynamic state " Stephen Hemminger 2020-04-25 16:26 ` David Marchand 2020-01-04 1:33 ` [dpdk-dev] [PATCH 03/14] eal: alarm: close timerfd on eal cleanup Stephen Hemminger 2020-04-25 16:32 ` David Marchand 2020-01-04 1:33 ` [dpdk-dev] [PATCH 04/14] eal: cleanup threads Stephen Hemminger 2020-02-04 14:48 ` Aaron Conole 2020-01-04 1:33 ` [dpdk-dev] [PATCH 05/14] eal: intr: cleanup resources Stephen Hemminger 2020-04-25 16:49 ` David Marchand 2020-04-26 16:24 ` Stephen Hemminger 2020-01-04 1:33 ` [dpdk-dev] [PATCH 06/14] eal: mp: end the multiprocess thread during cleanup Stephen Hemminger 2020-04-27 15:37 ` Burakov, Anatoly 2020-01-04 1:33 ` [dpdk-dev] [PATCH 07/14] eal: interrupts close epoll fd on shutdown Stephen Hemminger 2020-01-04 1:33 ` [dpdk-dev] [PATCH 08/14] eal: vfio: cleanup the mp sync handle Stephen Hemminger 2020-04-27 12:12 ` Burakov, Anatoly 2020-01-04 1:33 ` [dpdk-dev] [PATCH 09/14] eal: close mem config on cleanup Stephen Hemminger 2020-04-27 12:12 ` Burakov, Anatoly 2020-04-27 17:00 ` Stephen Hemminger 2020-04-28 9:20 ` Burakov, Anatoly 2020-01-04 1:33 ` [dpdk-dev] [PATCH 10/14] tap: close netlink socket on device close Stephen Hemminger 2020-04-25 15:52 ` David Marchand 2020-01-04 1:33 ` [dpdk-dev] [PATCH 11/14] eal: cleanup plugins data Stephen Hemminger 2020-01-04 1:33 ` [dpdk-dev] [PATCH 12/14] ethdev: raise priority of old driver warning Stephen Hemminger 2020-04-25 15:53 ` Thomas Monjalon 2020-01-04 1:33 ` [dpdk-dev] [PATCH 13/14] eal: hotplug: cleanup multiprocess resources Stephen Hemminger 2020-01-04 1:33 ` [dpdk-dev] [PATCH 14/14] eal: malloc: cleanup mp resources Stephen Hemminger 2020-04-27 12:10 ` Burakov, Anatoly 2020-02-05 9:32 ` [dpdk-dev] [PATCH 00/14] cleanup resources on shutdown David Marchand 2020-02-05 12:07 ` Stephen Hemminger 2020-02-05 12:32 ` David Marchand 2020-02-06 14:06 ` David Marchand 2020-02-07 18:24 ` Stephen Hemminger 2020-04-25 19:34 ` David Marchand 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 0/9] eal: " Stephen Hemminger 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 1/8] eal: log: close on cleanup Stephen Hemminger 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 2/8] eal: log: free dynamic state " Stephen Hemminger 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 3/8] eal: alarm: close file " Stephen Hemminger 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 4/8] eal: cleanup threads Stephen Hemminger 2020-04-28 23:14 ` Stephen Hemminger [this message] 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 6/8] eal: vfio: cleanup the mp sync handle Stephen Hemminger 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 7/8] eal: hotplug: cleanup multiprocess resources Stephen Hemminger 2020-04-28 23:14 ` [dpdk-dev] [PATCH v2 8/8] eal: malloc: cleanup mp resources Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 0/8] eal: cleanup resources on shutdown Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 1/8] eal: log: close on cleanup Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 2/8] eal: log: free dynamic state " Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 3/8] eal: alarm: close file " Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 4/8] eal: cleanup threads Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 5/8] eal: mp: end the multiprocess thread during cleanup Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 6/8] eal: vfio: cleanup the mp sync handle Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 7/8] eal: hotplug: cleanup multiprocess resources Stephen Hemminger 2020-04-28 23:58 ` [dpdk-dev] [PATCH v3 8/8] eal: malloc: cleanup mp resources Stephen Hemminger 2020-05-03 17:21 ` [dpdk-dev] [PATCH v3 0/8] eal: cleanup resources on shutdown David Marchand 2020-10-19 22:24 ` Thomas Monjalon 2021-03-24 21:30 ` Thomas Monjalon 2021-11-13 0:28 ` [PATCH v4 0/5] cleanup more stuff " Stephen Hemminger 2021-11-13 0:28 ` [PATCH v4 1/5] eal: close log in eal_cleanup Stephen Hemminger 2021-11-13 0:28 ` [PATCH v4 2/5] eal: mp: end the multiprocess thread during cleanup Stephen Hemminger 2021-11-13 0:28 ` [PATCH v4 3/5] eal: vfio: cleanup the mp sync handle Stephen Hemminger 2021-11-13 0:28 ` [PATCH v4 4/5] eal: hotplug: cleanup multiprocess resources Stephen Hemminger 2021-11-13 0:28 ` [PATCH v4 5/5] eal: malloc: cleanup mp resources Stephen Hemminger 2021-11-13 3:32 ` [PATCH v5 0/5] cleanup DPDK resources via eal_cleanup Stephen Hemminger 2021-11-13 3:32 ` [PATCH v5 1/5] eal: close log in eal_cleanup Stephen Hemminger 2021-11-13 3:32 ` [PATCH v5 2/5] eal: mp: end the multiprocess thread during cleanup Stephen Hemminger 2021-11-13 3:32 ` [PATCH v5 3/5] eal: vfio: cleanup the mp sync handle Stephen Hemminger 2021-11-13 3:32 ` [PATCH v5 4/5] eal: hotplug: cleanup multiprocess resources Stephen Hemminger 2021-11-13 3:32 ` [PATCH v5 5/5] eal: malloc: cleanup mp resources Stephen Hemminger 2021-11-13 17:22 ` [PATCH v6 0/5] cleanup more resources on eal_cleanup Stephen Hemminger 2021-11-13 17:22 ` [PATCH v6 1/5] eal: close log in eal_cleanup Stephen Hemminger 2021-11-13 17:22 ` [PATCH v6 2/5] eal: mp: end the multiprocess thread during cleanup Stephen Hemminger 2021-11-13 17:22 ` [PATCH v6 3/5] eal: vfio: cleanup the mp sync handle Stephen Hemminger 2021-11-13 17:22 ` [PATCH v6 4/5] eal: hotplug: cleanup multiprocess resources Stephen Hemminger 2021-11-13 17:22 ` [PATCH v6 5/5] eal: malloc: cleanup mp resources Stephen Hemminger 2022-02-11 20:17 ` [PATCH v6 0/5] cleanup more resources on eal_cleanup Thomas Monjalon
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