linux-kernel - Re: [PATCH 08/31] cpufreq: tegra20: Migrate to dev_pm_opp_set

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

Message-ID: <2517eea1-47e2-56d2-737f-f7d1499f693f@nvidia.com>
Date:   Fri, 24 Jun 2022 10:41:23 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Dmitry Osipenko <dmitry.osipenko@...labora.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Rafael Wysocki <rjw@...ysocki.net>,
        Stephen Boyd <sboyd@...nel.org>, Nishanth Menon <nm@...com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/31] cpufreq: tegra20: Migrate to
 dev_pm_opp_set_config()



On 24/06/2022 06:38, Viresh Kumar wrote:
> On 29-05-22, 19:59, Dmitry Osipenko wrote:
>> With that fixed, now there is another error:
>>
>> [    1.761945] cpu cpu0: _of_add_opp_table_v2: no supported OPPs
>> [    1.761960] cpu cpu0: OPP table can't be empty
>>
>> I see this on Tegra30, but not on Tegra20. Apparently OPP table
>> refcounting is broken on Tegra30 by this patchset. To make it clear,
>> there are no error without these OPP patches applied. I may take a
>> closer look if will be needed, just ping me.
> 
> Hi Jon,
> 
> Dmitry reported this on Tegra30 earlier, do you also see such a
> failure ? Would be helpful to get this fixed as well, if it still
> exists.


Yes I am seeing the same issue on Tegra30 ...

[    2.177437] cpu cpu0: _of_add_opp_table_v2: no supported OPPs
[    2.177455] cpu cpu0: OPP table can't be empty

And the cpufreq test we are running is failing.

Thanks
Jon

-- 
nvpublic