[PATCH v6] lib/eal: fix segfaults in exiting

[Zeng, ZhichaoX]

Hi Stephen, thanks for your comments. 

The original goal of this patch is to close the 'eal-intr-thread' to fix segfaults
caught by Asan. But it breaks the debug_autotest unit test.

So the flag is added to fix the unit test.

Hi @David Marchand, what's your suggestions?

BR
Zhichao

> -----Original Message-----
> From: Stephen Hemminger <stephen at networkplumber.org>
> Sent: Tuesday, October 11, 2022 10:04 PM
> To: Zeng, ZhichaoX <zhichaox.zeng at intel.com>
> Cc: dev at dpdk.org; stable at dpdk.org; Zhou, YidingX
> <yidingx.zhou at intel.com>; Richardson, Bruce
> <bruce.richardson at intel.com>; Harman Kalra <hkalra at marvell.com>
> Subject: Re: [PATCH v6] lib/eal: fix segfaults in exiting
> 
> On Tue, 11 Oct 2022 13:25:14 +0800
> Zhichao Zeng <zhichaox.zeng at intel.com> wrote:
> 
> > This patch closes the 'eal-intr-thread' before memory cleanup in
> > 'rte_eal_cleanup' to avoid segfaults, and adds a flag to avoid
> > executing 'rte_eal_cleanup' in the child process which is forked to
> > execute some test cases(e.g. debug_autotest of dpdk-test
> 
> This is a test bug, not an DPDK bug. I don't think DPDK should account for
> misuse of API in this way.