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Date: Wed, 13 Mar 2024 17:05:45 +0100
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Subject: Re: [PATCH v2 2/5] eal: fix multiprocess hotplug race
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To: Artemy Kovalyov <artemyko@nvidia.com>, <dev@dpdk.org>
CC: Thomas Monjalon <thomas@monjalon.net>, <stable@dpdk.org>, Qi Zhang
<qi.z.zhang@intel.com>
References: <20231212042517.164353-2-artemyko@nvidia.com>
<20240307070113.29580-1-artemyko@nvidia.com>
<20240307070113.29580-3-artemyko@nvidia.com>
From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
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Errors-To: dev-bounces@dpdk.org
On 3/7/2024 8:01 AM, Artemy Kovalyov wrote:
> There exists a time gap between the creation of the multiprocess channel
> and the registration of request action handlers. Within this window, a
> secondary process that receives an eal_dev_mp_request broadcast
> notification might respond with ENOTSUP. This, in turn, causes the
> rte_dev_probe() operation to fail in another secondary process.
> To avoid this, disregarding ENOTSUP responses to attach notifications.
>
> Fixes: 244d5130719c ("eal: enable hotplug on multi-process")
> Cc: stable@dpdk.org
>
> Signed-off-by: Artemy Kovalyov <artemyko@nvidia.com>
> ---
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
--
Thanks,
Anatoly