Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Tue, 18 Apr 2023 17:08:28 +0200
From:   Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To:     Vlastimil Babka <vbabka@suse.cz>
Cc:     John Ogness <john.ogness@linutronix.de>,
        Pierre Gondois <pierre.gondois@arm.com>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-rt-users@vger.kernel.org,
        Steven Rostedt <rostedt@goodmis.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [ANNOUNCE] v6.3-rc2-rt3
Message-ID: <20230418150828.tNv46UyK@linutronix.de>
References: <20230314170502.OHw1_FK3@linutronix.de>
 <20230314171231.jwtham4a@linutronix.de>
 <9ee941ae-ae22-f14b-4e69-f81b29bbba4b@arm.com>
 <87ttxiefpd.fsf@jogness.linutronix.de>
 <73b5657a-4c47-980a-e709-cd6a880c067c@suse.cz>
 <87pm86ece2.fsf@jogness.linutronix.de>
 <c49c2984-10a3-de8e-c12b-9a3833270a11@suse.cz>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <c49c2984-10a3-de8e-c12b-9a3833270a11@suse.cz>
Precedence: bulk

On 2023-04-14 17:38:56 [+0200], Vlastimil Babka wrote:
> What I meant that in the linked thread a solution seems to be forming in the
> form of annotation for lockdep/CONFIG_PROVE_RAW_LOCK_NESTING to make it
> aware that on CONFIG_PREEMPT_RT the problem it sees is side-stepped so it
> shouldn't warn about it on !PREEMPT_RT, and maybe that solution could be
> used for the printk issue as well (I admit I didn't check the code, just by
> reading your mail it sounded very similar).

Yes, you right and it would work and I would include it. Once the
DEBUG_OBJECT part is merged (the LD_LOCK_WAIT logic is missing) I would
add something here.

Sebastian