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Tue, 10 Dec 2024 11:00:07 -0500 (EST) Message-ID: <5cf0ddae7351c4e6637ef19c17b98d7505381fd0.camel@sapience.com> Subject: Re: Linux 6.12.4 - crash dma_alloc_attrs+0x12b via ipu6 From: Genes Lists To: Stanislaw Gruszka , Greg Kroah-Hartman Cc: Jani Nikula , Sakari Ailus , linux-kernel@vger.kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, stable@vger.kernel.org, linux-media@vger.kernel.org, bingbu.cao@intel.com, Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , David Airlie , Simona Vetter , intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Tue, 10 Dec 2024 11:00:06 -0500 In-Reply-To: References: <2024120917-vision-outcast-85f2@gregkh> <87seqvzzg6.fsf@intel.com> <87bjxjzpwn.fsf@intel.com> <2024121001-senator-raffle-a371@gregkh> Autocrypt: addr=lists@sapience.com; prefer-encrypt=mutual; keydata=mDMEXSY9GRYJKwYBBAHaRw8BAQdAwzFfmp+m0ldl2vgmbtPC/XN7/k5vscpADq3BmRy5R 7y0LU1haWwgTGlzdHMgKEwwIDIwMTkwNzEwKSA8bGlzdHNAc2FwaWVuY2UuY29tPoiWBBMWCAA+Ah sBBQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAFiEE5YMoUxcbEgQOvOMKc+dlCv6PxQAFAmPJfooFCRl vRHEACgkQc+dlCv6PxQAc/wEA/Dbmg91DOGXll0OW1GKaZQGQDl7fHibMOKRGC6X/emoA+wQR5FIz BnV/PrXbao8LS/h0tSkeXgPsYxrzvfZInIAC Content-Type: multipart/signed; micalg="pgp-sha384"; protocol="application/pgp-signature"; boundary="=-KexgZLu3kFUuTiVHjkds" User-Agent: Evolution 3.54.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 --=-KexgZLu3kFUuTiVHjkds Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2024-12-10 at 16:18 +0100, Stanislaw Gruszka wrote: >=20 > I've reproduced the issue. It's caused by 6.12.y commit: >=20 > commit 6ac269abab9ca5ae910deb2d3ca54351c3467e99 > Author: Bingbu Cao > Date:=C2=A0=C2=A0 Wed Oct 16 15:53:01 2024 +0800 >=20 > =C2=A0=C2=A0=C2=A0 media: ipu6: not override the dma_ops of device in dri= ver Terrific - I missed your comment as I was heads down doing git bisect which lands on same commit as you - so confirmed. > The problem will disappear after applying: > https://lore.kernel.org/stable/20241209175416.59433-1- > stanislaw.gruszka@linux.intel.com/ > since the allocation will not longer fail. >=20 > But we also need to handle fail case correctly by adding > cpu_latency_qos_remove_request() on error path. This requires > mainline fix, I'll post it.=20 >=20 Thank you ! 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