From: Jani Nikula <jani.nikula@linux.intel.com>
To: "Suesens, Sebastian" <sebastian.suesens@zeiss.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>
Subject: Re: How to fix Linux CMA on x86 with internal graphic card i915/hda_intel ioremap error?
Date: Wed, 17 Apr 2024 12:08:50 +0300 [thread overview]
Message-ID: <874jc0z78d.fsf@intel.com> (raw)
In-Reply-To: <AS1P190MB1822E12B130B87D1A768637AF13B2@AS1P190MB1822.EURP190.PROD.OUTLOOK.COM>
On Thu, 28 Mar 2024, "Suesens, Sebastian" <sebastian.suesens@zeiss.com> wrote:
> Hello,
>
> I enabled the CMA (CONFIG_CMA=y) for an x86 machine on Linux kernel v5.10 and v5.15 When I boot the system the CMA reserved memory, but when the graphic card driver i915 or hda_intel is loaded the system crashed.
> I see that ioremap on RAM at 0x0000000000000000 - 0x00000000d0000000 get fail. When I blacklist the i915 and hda_intel module the system boots fine with cma memory reserved.
>
> I think this has something to do with the shared memory which this driver use.
>
> Does anyone know if a kernel config or something else prevents this crash?
If you can reproduce this with recent kernels, please file a bug as
described at [1].
BR,
Jani.
[1] https://drm.pages.freedesktop.org/intel-docs/how-to-file-i915-bugs.html
--
Jani Nikula, Intel
prev parent reply other threads:[~2024-04-17 9:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-28 6:29 How to fix Linux CMA on x86 with internal graphic card i915/hda_intel ioremap error? Suesens, Sebastian
2024-04-17 9:08 ` Jani Nikula [this message]
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