linux-kernel - Re: [PATCH 02/37] binder: use group leader instead of open thread

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Message-ID: <CAMi1Hd0rT8Q92DiiS0h=TZ2uK07V43NSuzN6m6aM9KtRYJhNhA@mail.gmail.com>
Date:   Thu, 27 Jul 2017 14:38:30 +0530
From:   Amit Pundir <amit.pundir@...aro.org>
To:     Martijn Coenen <maco@...gle.com>
Cc:     John Stultz <john.stultz@...aro.org>,
        Todd Kjos <tkjos@...roid.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        devel@...verdev.osuosl.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Todd Kjos <tkjos@...gle.com>
Subject: Re: [PATCH 02/37] binder: use group leader instead of open thread

Hi,

On 25 July 2017 at 14:43, Martijn Coenen <maco@...gle.com> wrote:
> Hi John,
>
> On Mon, Jul 24, 2017 at 11:07 PM, John Stultz <john.stultz@...aro.org> wrote:
>>
>> 12-31 16:00:36.632  2518  2584 E hw-ProcessState: Using /dev/hwbinder
>> failed: unable to mmap transaction memory.
>
> This doesn't look right. Is there anything in the kernel log?

There is a slight difference in this patch and the one that got pushed
in android-4.9[1]. I cherry-picked those changes and got BT/WiFi
working again on Hikey with mainline tracking (4.13-rc2) tree.

Regards,
Amit Pundir
[1] https://android.googlesource.com/kernel/common/+/872c26eb0776ef160447d8703779e2bce0b7230a%5E%21/#F0

>
>> 12-31 16:00:36.632  2518  2566 D bt_hci  : hci_module_start_up
>> starting async portion
>> 12-31 16:00:36.632  2518  2584 E
>> android.hardware.bluetooth@1.0::BluetoothHci: getService:
>> defaultServiceManager()->getTransport returns
>> Status(EX_TRANSACTION_FAILED): '-9 Bad file descriptor: '
>> 12-31 16:00:36.633  2518  2584 F         :
>> [1231/160036:FATAL:hci_layer_android.cc(109)] Check failed: btHci !=
>> nullptr.
>> 12-31 16:00:36.634  2518  2584 F libc    : Fatal signal 6 (SIGABRT),
>> code -6 in tid 2584 (hci_thread)
>> ...
>> 12-31 16:00:38.027  2009  2061 E SupplicantStaIfaceHal: Exception
>> while trying to register a listener for ISupplicant service:
>> android.os.RemoteException: HwBinder Error: (-2147483648)
>> 12-31 16:00:38.027  2009  2061 E WifiMonitor: startMonitoring(wlan0) failed!
>> 12-31 16:00:38.028  2009  2061 E SupplicantStaIfaceHal: Can't call
>> setDebugParams, ISupplicant is null
>> 12-31 16:00:38.030  2009  2061 D WifiConfigStore: Reading from stores
>> completed in 2 ms.
>> 12-31 16:00:38.034  2009  2061 D WIFI    : Registering NetworkFactory
>> 12-31 16:00:38.035  2009  2061 D WIFI_UT : Registering NetworkFactory
>> 12-31 16:00:38.035  2009  2065 D ConnectivityService: Got
>> NetworkFactory Messenger for WIFI
>> 12-31 16:00:38.035  2009  2065 D ConnectivityService: Got
>> NetworkFactory Messenger for WIFI_UT
>> 12-31 16:00:38.037  2009  2061 D WifiConfigStore: Reading from user
>> store completed in 2 ms.
>> 12-31 16:00:38.055  2009  2061 D WifiConfigStore: Writing to stores
>> completed in 17 ms.
>> 12-31 16:00:38.055  2009  2061 E WifiStateMachine: Failed to setup
>> control channel, restart supplicant
>> ...
>> etc.
>>
>> thanks
>> -john