Re: Intel 7560 LTE Modem stops working after resuming from standby

From: Bagas Sanjaya
Date: Tue Oct 17 2023 - 03:09:05 EST


On 16/10/2023 20:18, Loic Poulain wrote:
> Hi Bagas,
>
> On Fri, 13 Oct 2023 at 02:04, Bagas Sanjaya <bagasdotme@xxxxxxxxx> wrote:
>>
>> On Thu, Oct 12, 2023 at 06:54:11PM +0200, Loic Poulain wrote:
>>> Hi Chetan,
>>>
>>> On Thu, 12 Oct 2023 at 11:52, Bagas Sanjaya <bagasdotme@xxxxxxxxx> wrote:
>>>> I notice a regression report on Bugzilla [1]. Quoting from it:
>>>>
>>>>> I noticed a few days ago, after Fedora moved to Kernel 6.5, that my Intel LTE Modem was not working anymore after resuming from standby.
>>>>>
>>>>> The journal listed this error message multiple times:
>>>>> kernel: iosm 0000:01:00.0: msg timeout
>>>>>
>>>>> It took me a while to determine the root cause of the problem, since the modem did not work either in the following warm reboots.
>>>>> Only a shutdown revived the modem.
>>>>>
>>>>> I did a bisection of the error and I was able to find the culprit:
>>>>>
>>>>> [e4f5073d53be6cec0c654fac98372047efb66947] net: wwan: iosm: enable runtime pm support for 7560
>>>
>>> Any quick fix for this issue? alternatively we will probably revert e4f5073d53.
>>
>> Chetan can't be contacted as sending to his address bounces (error 550)
>> (had he left Intel?). Last message on LKML is this culprit patch [1].
>> Hence, revert for now.
>
> Could you please submit the revert fix?
>

OK, will do.

--
An old man doll... just what I always wanted! - Clara