From: Khadem Ullah <14pwcse1224@uetpeshawar.edu.pk>
To: "Varghese, Vipin" <Vipin.Varghese@amd.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"Yigit, Ferruh" <Ferruh.Yigit@amd.com>,
"andrew.rybchenko@oktetlabs.ru" <andrew.rybchenko@oktetlabs.ru>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [PATCH v7] app/testpmd: monitor state of primary process when using secondary
Date: Mon, 11 Aug 2025 16:14:42 +0500 [thread overview]
Message-ID: <CA++2-x4i2OegW0u2a6AJepCFgqjLbwzqdw+es3BqrABgqM7FZg@mail.gmail.com> (raw)
In-Reply-To: <PH7PR12MB8596C293ACF92D446DBD10508228A@PH7PR12MB8596.namprd12.prod.outlook.com>
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Hi,
You can create a simple setup with only running testpmd with primary and
another testpmd with secondary and then see the results.
No, the reason for the primary process termination could be close or
shutdown (ctrl + c or ctrl + q) or any other.
The reason is clear: "In secondary processes, accessing
'dev->data->dev_private' or &dev->data->mac_addrs directly can
cause a segmentation fault if the primary process has exited or the
shared memory is unavailable."
The effect is throughput the life-cycle of secondary process existence in
dpdk after primary,
You can check
https://patches.dpdk.org/project/dpdk/patch/20250721073851.963141-1-14pwcse1224@uetpeshawar.edu.pk/
https://patches.dpdk.org/project/dpdk/patch/20250721105522.1019515-1-14pwcse1224@uetpeshawar.edu.pk/
I think most of the details have already been provided.
The community agrees with the current solution.
Thanks.
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next prev parent reply other threads:[~2025-08-11 11:14 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-22 11:54 [PATCH] lib/ethdev: fix segfault in secondary process by validating dev_private pointer Khadem Ullah
2025-07-22 13:39 ` Stephen Hemminger
2025-07-22 14:30 ` Khadem Ullah
2025-07-22 15:42 ` Stephen Hemminger
2025-07-22 16:01 ` Khadem Ullah
2025-07-22 16:13 ` Bruce Richardson
2025-07-22 17:04 ` Khadem Ullah
2025-07-22 17:38 ` Stephen Hemminger
2025-07-22 17:53 ` Khadem Ullah
2025-07-22 18:21 ` Stephen Hemminger
2025-07-22 19:03 ` Khadem Ullah
2025-07-22 19:05 ` Ivan Malov
2025-07-22 22:28 ` Stephen Hemminger
2025-07-23 4:29 ` Khadem Ullah
2025-07-23 4:50 ` [PATCH v2] " Khadem Ullah
2025-07-23 12:19 ` Khadem Ullah
2025-07-23 13:13 ` Khadem Ullah
2025-07-23 13:24 ` Ivan Malov
2025-07-23 13:26 ` Khadem Ullah
2025-07-23 13:31 ` Ivan Malov
2025-07-23 13:10 ` [PATCH] [PATCH v3] " Khadem Ullah
2025-07-23 13:19 ` Ivan Malov
2025-07-23 13:34 ` Khadem Ullah
2025-07-23 14:22 ` Stephen Hemminger
2025-07-24 5:49 ` Khadem Ullah
2025-07-25 13:00 ` Khadem Ullah
2025-07-25 12:55 ` [PATCH] [PATCH v4] " Khadem Ullah
2025-07-28 21:45 ` Stephen Hemminger
2025-07-29 5:42 ` Khadem Ullah
2025-07-29 21:34 ` Stephen Hemminger
2025-07-30 5:07 ` Khadem Ullah
2025-08-08 3:49 ` Varghese, Vipin
2025-08-08 15:32 ` Stephen Hemminger
2025-08-11 10:19 ` Varghese, Vipin
2025-08-11 10:28 ` Khadem Ullah
2025-08-11 10:39 ` Varghese, Vipin
2025-07-29 6:39 ` [PATCH] app/testpmd: fix segfault in secondary process by monitoring primary Khadem Ullah
2025-07-29 6:39 ` [PATCH] [PATCH v4] lib/ethdev: fix segfault in secondary process by validating dev_private pointer Khadem Ullah
2025-07-29 6:39 ` [PATCH] [PATCH v5] app/testpmd: fix segfault in secondary process by monitoring primary Khadem Ullah
2025-07-29 14:48 ` Stephen Hemminger
2025-07-29 21:48 ` Stephen Hemminger
2025-07-30 5:24 ` Khadem Ullah
2025-08-08 3:44 ` Varghese, Vipin
2025-08-08 16:17 ` Stephen Hemminger
2025-08-11 10:23 ` Varghese, Vipin
2025-08-11 10:27 ` Khadem Ullah
2025-07-30 5:56 ` [PATCH] app/testpmd: monitor state of primary process when using secondary Khadem Ullah
2025-07-30 6:08 ` [PATCH v6] " Khadem Ullah
2025-08-01 22:50 ` Stephen Hemminger
2025-08-04 7:54 ` [PATCH v7] " Khadem Ullah
2025-08-04 11:33 ` Khadem Ullah
2025-08-04 15:44 ` Stephen Hemminger
2025-08-05 0:50 ` fengchengwen
2025-08-08 3:23 ` Varghese, Vipin
2025-08-08 5:44 ` Khadem Ullah
2025-08-08 10:59 ` Varghese, Vipin
2025-08-08 11:49 ` Khadem Ullah
2025-08-08 16:49 ` Stephen Hemminger
2025-08-08 17:01 ` Khadem Ullah
2025-08-11 10:37 ` Varghese, Vipin
2025-08-11 11:14 ` Khadem Ullah [this message]
2025-08-11 11:34 ` Varghese, Vipin
2025-08-11 11:55 ` Khadem Ullah
2025-08-11 14:44 ` Varghese, Vipin
2025-08-11 17:11 ` Khadem Ullah
2025-08-11 10:30 ` Varghese, Vipin
2025-08-11 10:51 ` Khadem Ullah
2025-08-11 11:07 ` Varghese, Vipin
2025-08-08 15:28 ` Stephen Hemminger
2025-08-08 15:50 ` Khadem Ullah
2025-08-08 16:10 ` Stephen Hemminger
2025-07-23 14:21 ` [PATCH v2] lib/ethdev: fix segfault in secondary process by validating dev_private pointer Stephen Hemminger
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