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Date:      Wed, 31 Mar 2021 11:06:24 +0300
From:      "Andrey V. Elsukov" <bu7cher@yandex.ru>
To:        Masachika ISHIZUKA <ish@amail.plala.or.jp>, freebsd-current@freebsd.org
Subject:   Re: system freeze on 14.0-CURRENT
Message-ID:  <f54aef3d-f68b-b200-0656-b8d446dd65ca@yandex.ru>
In-Reply-To: <20210328.140317.1263140531808964255.ish@amail.plala.or.jp>
References:  <20210328.140317.1263140531808964255.ish@amail.plala.or.jp>

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From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
To: Masachika ISHIZUKA <ish@amail.plala.or.jp>, freebsd-current@freebsd.org
Message-ID: <f54aef3d-f68b-b200-0656-b8d446dd65ca@yandex.ru>
Subject: Re: system freeze on 14.0-CURRENT
References: <20210328.140317.1263140531808964255.ish@amail.plala.or.jp>
In-Reply-To: <20210328.140317.1263140531808964255.ish@amail.plala.or.jp>

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28.03.2021 08:03, Masachika ISHIZUKA =D0=BF=D0=B8=D1=88=D0=B5=D1=82:
>   I have trouble with recent 14.0-CURRENT 1400006 (e.x. main-6a762cfae,=

> main-3ead60236, main-25bfa4486).
>   It works well on recent 14.0-CURRENT until starting firefox.
>   If I start firefox (v87.0), system freeze but no core dumps.
>   If it booted old kernel 1400005 (e.x. main-b5449c92b), firefox v87.0
> is working well.

I have successful installed 14.0-CURRENT on the lenovo x1 carbon g8, but
it just hangs when I tried to build the kernel. And I'm unable to enter
the debugger. I think it happens when CPU load reaches some level.

I tried to disable hwpstate_intel via loader.conf and it helps:

% grep hint /boot/loader.conf
hint.hwpstate_intel.0.disabled=3D"1"

My old lenovo x1 carbon gen 4 was hanging on boot with the same symptoms.=


--=20
WBR, Andrey V. Elsukov


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