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User-Agent: Mozilla Thunderbird Content-Language: en-US, de-DE To: stable@vger.kernel.org From: Marius Hanl Subject: Stable request: Backport d5164580a994 to 7.2.y (amdgpu NULL deref) Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:UA7nkuP4dn9j7lZX/6eaMgFsknyp7gw8O3UD2eS1ZwRU9qGtBeM OY4Mi7QZnnXAJuKJI812JdpkkyNijIvPjcdZchhHOaCGTl8dORoVhCqE4iKXhNI+SYDqhZy w4uVPiMcdxaYRP721rVLq1KwhP13yNACOLjWiY8efAWmt5rYR3Ddem9RF1aqx73IsnUyW0A jdJyMmBNaqSJcR92CLXgg== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:zMIZtNf+/Ww=;eYbv+Dd/5+TVPojXG3SQOM3cCRP 6UggPi68z0UmbqYrgFyP16c+f2O+hETe8TGIHlwNvw4/MUpsWPuCJ/7pXghQSmcq25YKfAXiF GQOd1Bh9znGeTsJ8pfMTomO3r/gJ/WYmiCSwfHp55x/ApzOMsOSR+7O7hyBqS8bVZbdRfoRAI SwXB4lFPHLEx8Eop3mZ97RAWvLo/ELQotJrzN9BjQzTFPG2luSV8449sLjBjOZ/kgpWvQrSU3 46O3VDQOteIRVBdGfZOmGTYctzhXrpXRoZP8gF+Ql3IcZoCQA+T2ABemnkC4gwqvZoZtUi1+c 7nPA8byBIo4oqcFUxkw3LKX547/y5mL3vQ3NiaRIC+aG6icnhOY3igSBG0F9RZo7MvKLNz2mD 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s/hDgmwsl32Mox3C9l9ihE2fDuo1THDngDUtR9XkS1HpQJVVWUxFbMzsCslpaQgFiUxEoKxYW 5tZg/IuWaEYwjXBNLLsPSrjVBi0TMLpFoC3NoaToR1JogAIurN6EnkcNs9o0mKZhzMCAuLUcT S9yPKuRz54aV5plvt9uat9bxlRp14AetWuw5YpoE3GRUCHlA4Xa7qyP8/mXjcNGjmfWB5VjgJ 2jOnD8Pxe/p/8AVYlZmDL9HaZgDtMExqO/2U/WbwPpskqiFmPTRsJ8m8OOqoqirPr6pGwsFaR Dyd1fTXtPYsIi4RqyaacHpbMTjj/hjgIdKOwwd8YFGGMS6v20gWT8SITcL1niocGlIkVP5tvK j58HACj2G2fWcwT6IWOCNoC9mf0+lIWt6YeNwR1b+qwSmLynUjxGMk03wVzzum1FKZvzBUSh6 MfCf Please consider the following commit for 7.2.y: commit d5164580a994 "drm/amd/display: Skip Update HDCP Config In=20 Transition State" It fixes a null deref I got today: BUG: kernel NULL pointer dereference, address: 0000000000000000 =C2=A0 Workqueue: events drm_fb_helper_damage_work =C2=A0 RIP: 0010:update_config+0x245/0x390 [amdgpu] =C2=A0 Call Trace: =C2=A0 =C2=A0update_psp_stream_config+0x23f/0x280 [amdgpu] =C2=A0 =C2=A0link_set_dpms_on+0x1a61/0x1b00 [amdgpu] =C2=A0 =C2=A0dce110_apply_ctx_to_hw+0x5ee/0x760 [amdgpu] =C2=A0 =C2=A0dc_commit_streams+0x487/0x650 [amdgpu] =C2=A0 =C2=A0amdgpu_dm_atomic_commit_tail+0xa13/0x4660 [amdgpu] =C2=A0 =C2=A0drm_atomic_commit+0xc3/0xf0 =C2=A0 =C2=A0drm_fb_helper_damage_work+0x305/0x410 =C2=A0 note: kworker/14:2[67932] exited with irqs disabled I needed to restart the whole machine to recover. Since it is a rather small patch, I thought I may ask if that is possible. Thanks Marius