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SubjectRe: Thinkpad X60: regression with 5.1-rc1 and 5.1-rc4
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> Il giorno 9 apr 2019, alle ore 18:33, Pavel Machek <pavel@ucw.cz> ha scritto:
>
> On Mon 2019-04-08 11:41:18, Jens Axboe wrote:
>> On 4/8/19 11:39 AM, Pavel Machek wrote:
>>> Hi!
>>>
>>> For some reason, Thinkpad X60 now crashes during boot. I see some
>>> weird backtraces, and it may be bfq related... or maybe ACPI idle.
>>>
>>> Does x86-32 work for you?
>>>
>>> Weird thing is, 5.1.0-rc3-next-20190408 boots here (but later has
>>> problems during resume, making it unusable, too). They may not have
>>> 100% same configs.
>
> I now noticed it said:
>
> EIP is in bfq_bfqq_expire
>
>> Can you try and revert:
>>
>> 9dee8b3b057e1
>>
>> and see if that helps?
>
> Yes, I tried and yes, it helps. What are the next steps?
>

Try my fix:

https://lore.kernel.org/linux-block/20190409191420.3f56d493@fire.localdomain/T/#m30a14045e710b870f00f7c51cdaa7c403977b767

and cross your fingers :)

Thanks,
Paolo

> Pavel
>
> --
> (english) http://www.livejournal.com/~pavelmachek
> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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