linux-kernel - Re: [RFC PATCH 0/6] RLIMIT

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Message-ID: <e9589141-cfeb-90cd-2d0e-83a62787239a@edechamps.fr>
Date:   Sat, 12 Feb 2022 15:32:30 +0000
From:   Etienne Dechamps <etienne@...champs.fr>
To:     Michal Koutný <mkoutny@...e.com>,
        Eric Biederman <ebiederm@...ssion.com>,
        Alexey Gladkov <legion@...nel.org>
Cc:     Kees Cook <keescook@...omium.org>, Shuah Khan <shuah@...nel.org>,
        Christian Brauner <brauner@...nel.org>,
        Solar Designer <solar@...nwall.com>,
        Ran Xiaokai <ran.xiaokai@....com.cn>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        Linux Containers <containers@...ts.linux-foundation.org>
Subject: Re: [RFC PATCH 0/6] RLIMIT_NPROC in ucounts fixups

Hello there,

On 07/02/2022 12:17, Michal Koutný wrote:
> This series is a result of looking deeper into breakage of
> tools/testing/selftests/rlimits/rlimits-per-userns.c after
> https://lore.kernel.org/r/20220204181144.24462-1-mkoutny@suse.com/
> is applied.

Pardon the intrusion, but I thought you might be interested to know that 
as a humble user I noticed actual user-visible breakage from 59ec715 
"ucounts: Fix rlimit max values check": 
https://bugzilla.kernel.org/show_bug.cgi?id=215596

I'm not sure I understand everything that's going on in this thread but 
it does seem very relevant. You guys might want to double-check the 
behavior in the particular scenario described there. I'm mostly sending 
this to make sure everything is cross-linked.