Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 21 Jul 2019 18:07:06 +0200
From:      Evilham <contact@evilham.com>
To:        freebsd-current@freebsd.org
Subject:   Re: acpi issues on FreeBSD-current_r350103 on Thinkpad A485
Message-ID:  <7f93a34e-0603-410b-850a-ab2708e19273@yggdrasil.evilham.com>
In-Reply-To: <64f3212b-cbe7-4c8f-84df-48f14a0bf44f@yggdrasil.evilham.com>
References:  <CAG%2B4yk=DU9o=5oEaFgZ91pufwyUtY9wH1AAhsqG-RhTkB3Zsug@mail.gmail.com> <3b186187-c9f6-46d2-939a-eceb6fa0359c@yggdrasil.evilham.com> <56603047-4997-1fb5-18e1-3752cdaf3a18@nomadlogic.org> <64f3212b-cbe7-4c8f-84df-48f14a0bf44f@yggdrasil.evilham.com>

next in thread | previous in thread | raw e-mail | index | archive | help
On ds., jul. 20 2019, Evilham wrote:
>>> Serious issue:
>>> I was just debugging this right now, more infos with a proper
>>> bug
>>> report will come, but I think the system encounters a deadlock
>>> sometimes with the drm-kmod / amdgpu which results in a kernel
>>> panic.
>>> It is a serious issue, but it allows me to use the computer 
>>> for
>>> work,
>>> it doesn't happen every couple hours, but it does happen a
>>> couple
>>> times a day.
>>>
>>> FWIW, this is part of the crashlog:
>>>
>>> WARNING !drm_modeset_is_locked(&plane->mutex) failed at
>>> /wrkdirs/usr/ports/graphics/drm-fbsd12.0-kmod/work/kms-drm-6365030/drivers/gpu/drm/drm_atomic_helper.c:821
>>> [Multiple times...]
>>> kernel trap 22 with interrupts disabled
>>>  kernel trap 22 with interrupts
>>>  disabled
>>> kernel trap 22 with interrupts disabled
>>> kernel trap 22 with interrupts disabled
>>>  panic: spin lock held too long


And this is why I wanted to do more debugging before raising an 
issue :-).

It kept happening without drm-kmod but the backtrace was 
different, which allowed me to reduce it to a piece of alpha 
Software I use pretty much all the time: WireGuard.
See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=239351

So, update: there is no *serious* issue when using the ThinkPad 
A485, it works mostly fine with minor annoyances (including the 
fact that installation media won't work out of the box).
--
Evilham



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?7f93a34e-0603-410b-850a-ab2708e19273>