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Message-ID: <002b6490-9e4c-27d4-304e-775c07be1b61@skogtun.org>
Date: Mon, 20 Apr 2020 10:54:59 +0200
From: Harald Arnesen <harald@...gtun.org>
To: Giovanni Gherdovich <ggherdovich@...e.cz>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [Bisected] Oops witn 5.7.0-rc1
Giovanni Gherdovich [20.04.2020 10:44]:
> On Sat, 2020-04-18 at 18:15 +0200, Harald Arnesen wrote:
>> Kernel 5.7.0-rc1 and later won't boot on my ThinkPad T510i.
>>
>> The attached jpeg is all I can capture of the oops. Bisected to commit
>> 1567c3e3467cddeb019a7b53ec632f834b6a9239, but I cannot revert that to check.
>>
>> A strange thing: The same commit is in 5.6.5, and that kernel boots
>> fine. 5.7.0-rc1 also boots fine on my desktop.
>>
>> Screenshot and config attached. Please request any further info.
>
> Hello Harald,
>
> thanks for the report.
>
> The problem you encountered is likely due to a bug where the code doesn't work
> on machines with less than 4 physical CPU cores. It is fixed by this patch
> series:
>
> https://lore.kernel.org/lkml/20200416054745.740-1-ggherdovich@suse.cz/
>
> The series has been acknowledged by the subsystem maintainers but not yet
> merged in any tree (it is expected to land in the "tip" tree and then be pulled
> by Linus).
Thanks!
I just sent a new bug report, since rc2 has the same problem. You may
disregard that one, then.
--
Hilsen Harald
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