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From: Stephen Hemminger <stephen@networkplumber.org>
To: Zhichao Zeng <zhichaox.zeng@intel.com>
Cc: dev@dpdk.org, david.marchand@redhat.com, qiming.yang@intel.com,
	yidingx.zhou@intel.com, stable@dpdk.org,
	Bruce Richardson <bruce.richardson@intel.com>,
	Harman Kalra <hkalra@marvell.com>
Subject: Re: [PATCH v5] lib/eal: fix segfaults in exiting
Date: Tue, 6 Sep 2022 08:03:37 -0700	[thread overview]
Message-ID: <20220906080337.25dc426d@hermes.local> (raw)
In-Reply-To: <20220906025132.160801-1-zhichaox.zeng@intel.com>

On Tue,  6 Sep 2022 10:51:31 +0800
Zhichao Zeng <zhichaox.zeng@intel.com> wrote:

>  
> +static void mark_forked(void)
> +{
> +	is_forked++;
> +}
> +

This will end up counting application threads as well.

Also, it would need to be atomic.

>  /* Launch threads, called at application init(). */
>  int
>  rte_eal_init(int argc, char **argv)
> @@ -1324,6 +1331,8 @@ rte_eal_init(int argc, char **argv)
>  
>  	eal_mcfg_complete();
>  
> +	pthread_atfork(NULL, NULL, mark_forked);
> +
>  	return fctret;
>  }

>  int
>  rte_eal_cleanup(void)
>  {
> +	if (is_forked)
> +		return 0;
> +

rte_eal_cleanup is supposed to be called only once by application.

  reply	other threads:[~2022-09-06 15:03 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220523111642.10406-1-zhichaox.zeng@intel.com>
2022-05-30 13:47 ` [PATCH v3] lib/eal: fix segfaults due to thread exit order zhichaox.zeng
2022-05-30 16:26   ` Stephen Hemminger
2022-05-30 16:28   ` Stephen Hemminger
2022-06-02  8:21     ` Zeng, ZhichaoX
2022-06-07 10:14   ` Zeng, ZhichaoX
2022-06-15  6:01   ` [PATCH v4] " zhichaox.zeng
2022-06-24  1:42     ` Zeng, ZhichaoX
2022-06-24  7:50       ` David Marchand
2022-06-30 10:38       ` Zeng, ZhichaoX
2022-06-30 12:24     ` Bruce Richardson
2022-09-06  2:51     ` [PATCH v5] lib/eal: fix segfaults in exiting Zhichao Zeng
2022-09-06 15:03       ` Stephen Hemminger [this message]
2022-09-07  8:53         ` Zeng, ZhichaoX
2022-10-11  5:25       ` [PATCH v6] " Zhichao Zeng
2022-10-11 14:04         ` Stephen Hemminger
2022-10-19  1:51           ` Zeng, ZhichaoX
2022-09-06  2:49 [PATCH v5] " Zhichao Zeng

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