linux-kernel - Re: panic, bisect to commit 7f1d4e58dabb "spmi: pmic-arb: optimize table lookups"

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Date:   Mon, 17 Jul 2017 22:44:47 -0700
From:   Frank Rowand <frowand.list@...il.com>
To:     Rajendra Nayak <rnayak@...eaurora.org>,
        Kiran Gunda <kgunda@...eaurora.org>,
        Abhijeet Dharmapurikar <adharmap@...eaurora.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Timur Tabi <timur@...eaurora.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        adharmap@...cinc.com, aghayal@....qualcomm.com
Subject: Re: panic, bisect to commit 7f1d4e58dabb "spmi: pmic-arb: optimize
 table lookups"

On 07/17/17 22:06, Frank Rowand wrote:
> On 07/17/17 20:56, Rajendra Nayak wrote:
>>
>> On 07/18/2017 09:12 AM, Frank Rowand wrote:
>>> Hi Abhijeet,
>>>
>>> My qcom-apq8074-dragonboard panics on boot on v4.13-rc1.
>>>
>>> I bisected the problem to commit 7f1d4e58dabb, "spmi: pmic-arb:
>>> optimize table lookups".
>>
>> there's a fix on its way upstream,
>> https://patchwork.kernel.org/patch/9810723/
>>
> 
> Thank you for the pointer to the patch.  After adding the patch, my
> board still does not boot, but now has several different stack
> dumps from various drivers.  I do not know if the new errors are
> related to this patch or something entirely different.  I'll dig
> into it tomorrow.

There is one more test I should have done before sending my previous
email.  I added the patch that is planned to fix the problem I
reported on top of:

  76b069b1cb20 spmi: spmi-pmic-arb: enable the SPMI interrupt as a wakeup source

which is the last patch in the series that included the patch that
I reported a problem with.  My board boots fine at that point,
so I am fairly confident that my further boot issues have yet
another cause, and that the fix on its way upstream should fix
the specific problem that I reported.

-Frank