linux-kernel - Re: [PATCH AUTOSEL 5.9 28/39] intel_idle: Fix intel

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20201213141115.GR643756@sasha-vm>
Date:   Sun, 13 Dec 2020 09:11:15 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 5.9 28/39] intel_idle: Fix intel_idle() vs tracing

On Thu, Dec 03, 2020 at 06:10:35PM +0100, Peter Zijlstra wrote:
>On Thu, Dec 03, 2020 at 08:28:22AM -0500, Sasha Levin wrote:
>> From: Peter Zijlstra <peterz@...radead.org>
>>
>> [ Upstream commit 6e1d2bc675bd57640f5658a4a657ae488db4c204 ]
>>
>> cpuidle->enter() callbacks should not call into tracing because RCU
>> has already been disabled. Instead of doing the broadcast thing
>> itself, simply advertise to the cpuidle core that those states stop
>> the timer.
>>
>> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
>> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>> Link: https://lkml.kernel.org/r/20201123143510.GR3021@hirez.programming.kicks-ass.net
>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>
>This patch has a known compile issue, fix is pending.

I've also grabbed 4d916140bf28 ("intel_idle: Build fix"). Thanks!

-- 
Thanks,
Sasha