From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Markus Ongyerth <markus@ongy.net>
Cc: linux-rt-users@vger.kernel.org, ongyerth@intrinsic.ai,
cschiemann@intrinsic.ai
Subject: Re: Ist drm/i915: Depend on !PREEMPT_RT. still necessary?
Date: Thu, 12 Mar 2026 12:31:56 +0100 [thread overview]
Message-ID: <20260312113156.yINqVd8t@linutronix.de> (raw)
In-Reply-To: <4b7478ba-e10e-4877-b2e6-63203ffa9094@app.fastmail.com>
On 2026-02-02 17:16:00 [+0100], Markus Ongyerth wrote:
> Hi,
Hi,
> in https://patchwork.kernel.org/project/intel-gfx/patch/YgqmfKhwU5spS069@linutronix.de/#24761794 the i915 module was disabled for RT_PREEMPT kernels.
> The associated discussion mentions that it shuld be save to revert this once more patches have made it in.
> From what I can see, further patches did make it in. But the dependency is still there.
>
> Was this an oversight or is it still unsafe to use i915 with
> RT_PREEMPT? If the latter, is there a patchset we could pull to make
> it safer? Or is there some place to read up on the dangers?
If you look at the latest 7.0.-RT queue, there are still i915 patches in
it. It is not an oversight. There is this series
https://lore.kernel.org/all/20260310115709.2276203-1-dev@lankhorst.se/
which once landed would get rid of this !RT for i915.
> Thanks,
> Markus
Sebastian
prev parent reply other threads:[~2026-03-12 11:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-02 16:16 Ist drm/i915: Depend on !PREEMPT_RT. still necessary? Markus Ongyerth
2026-03-12 11:31 ` Sebastian Andrzej Siewior [this message]
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