linux-kernel - Re: get_maintainer.pl produces non-deterministic results

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Message-ID: <4f3e350d0fcef89e25350f7d68ea96f33dc4e3f0.camel@perches.com>
Date:   Tue, 10 Dec 2019 16:01:15 -0800
From:   Joe Perches <joe@...ches.com>
To:     Dmitry Vyukov <dvyukov@...gle.com>,
        Vegard Nossum <vegard.nossum@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: get_maintainer.pl produces non-deterministic results

On Tue, 2019-12-10 at 14:47 +0100, Dmitry Vyukov wrote:
> Hi Joe,
> 
> scripts/get_maintainer.pl fs/proc/task_mmu.c
> non-deterministically gives me from 13 to 16 results, different number
> every time (on upstream 6794862a). Perl v5.28.1. Michael confirmed
> this with v5.28.2.
> Vergard suggested to check PERL_HASH_SEED=0. Indeed it fixes
> non-determinism. But I guess it's not the right solution, there should
> be some logical problem.
> My perl-fo is weak, I appreciate if somebody with proper perl-fo takes a look.
> 
> Thanks

https://lkml.org/lkml/2017/7/13/789