From: Naresh Kamboju <naresh.kamboju@linaro.org>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Rajendra Nayak <rnayak@codeaurora.org>,
open list <linux-kernel@vger.kernel.org>,
Linux-Next Mailing List <linux-next@vger.kernel.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
linux-clk <linux-clk@vger.kernel.org>,
linux-mmc <linux-mmc@vger.kernel.org>,
lkft-triage@lists.linaro.org,
John Stultz <john.stultz@linaro.org>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Lars Povlsen <lars.povlsen@microchip.com>,
madhuparnabhowmik10@gmail.com
Subject: Re: Kernel panic : Unable to handle kernel paging request at virtual address - dead address between user and kernel address ranges
Date: Thu, 27 Aug 2020 17:06:38 +0530 [thread overview]
Message-ID: <CA+G9fYv=XLtsuD=tVR1HHotwpKLkbwZVyPr4UhY-jD+6-duTmw@mail.gmail.com> (raw)
In-Reply-To: <20200827101231.smqrhqu5da6jlz6i@vireshk-i7>
On Thu, 27 Aug 2020 at 15:42, Viresh Kumar <viresh.kumar@linaro.org> wrote:
>
> On 27-08-20, 11:48, Arnd Bergmann wrote:
> > > > [ 3.680477] dev_pm_opp_put_clkname+0x30/0x58
> > > > [ 3.683431] sdhci_msm_probe+0x284/0x9a0
> >
> > dev_pm_opp_put_clkname() is part of the error handling in the
> > probe function, so I would deduct there are two problems:
> >
> > - something failed during the probe and the driver is trying
> > to unwind
> > - the error handling it self is buggy and tries to undo something
> > again that has already been undone.
>
> Right.
>
> > This points to Viresh's
> > d05a7238fe1c mmc: sdhci-msm: Unconditionally call dev_pm_opp_of_remove_table()
>
> I completely forgot that Ulf already pushed this patch and I was
> wondering on which of the OPP core changes I wrote have done this :(
>
> > Most likely this is not the entire problem but it uncovered a preexisting
> > bug.
>
> I think this is.
>
> Naresh: Can you please test with this diff ?
I have applied your patch and tested but still see the reported problem.
Link to test job,
https://lkft.validation.linaro.org/scheduler/job/1715677#L1886
- Naresh
next prev parent reply other threads:[~2020-08-27 15:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-27 8:32 Kernel panic : Unable to handle kernel paging request at virtual address - dead address between user and kernel address ranges Naresh Kamboju
2020-08-27 9:08 ` Viresh Kumar
2020-08-27 9:48 ` Arnd Bergmann
2020-08-27 10:12 ` Viresh Kumar
2020-08-27 11:36 ` Naresh Kamboju [this message]
2020-08-28 9:22 ` Naresh Kamboju
2020-08-28 9:34 ` Ulf Hansson
2020-08-28 10:08 ` Naresh Kamboju
2020-08-28 10:29 ` Anders Roxell
2020-08-28 12:23 ` Ulf Hansson
2020-08-31 4:46 ` Viresh Kumar
2020-08-27 9:12 ` Naresh Kamboju
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