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-----Original Message----- From: Shuah Khan skhan@linuxfoundation.org Sent: Friday, April 17, 2020 2:06 PM To: Linus Torvalds torvalds@linux-foundation.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org; Shuah Khan skhan@linuxfoundation.org; LKML linux-kernel@vger.kernelnorg; Liang, Prike Prike.Liang@amd.com; Deucher, Alexander Alexander.Deucher@amd.com; stable stable@vger.kernel.org Subject: Linux 5.7-rc1 reboot/poweroff hangs
Hi Linus,
Linux 5.7-rc1 reboot/powereoff hangs on AMD Ryzen 5 PRO 2400GE system.
I isolated the commit to:
Revering the following commit fixes the problem.
The fix is already sent out in my -fixes pull for this week: https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-5.7&id=b2a...
Alex
commit 487eca11a321ef33bcf4ca5adb3c0c4954db1b58 Author: Prike Liang Prike.Liang@amd.com Date: Tue Apr 7 20:21:26 2020 +0800
drm/amdgpu: fix gfx hang during suspend with video playback (v2) The system will be hang up during S3 suspend because of SMU is pending for GC not respose the register CP_HQD_ACTIVE access request.This issue root cause of accessing the GC register under enter GFX CGGPG and can be fixed by disable GFX CGPG before perform suspend. v2: Use disable the GFX CGPG instead of RLC safe mode guard. Signed-off-by: Prike Liang <Prike.Liang@amd.com> Tested-by: Mengbing Wang <Mengbing.Wang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.orgI did the bisect on Linux 5.6.5-rc1
git bisect start # good: [0a27a29496060843ae3a8fe78aaec0062cbd5dfa] Linux 5.6.4 git bisect good 0a27a29496060843ae3a8fe78aaec0062cbd5dfa # bad: [576aa353744ce5f1279071363e4a55e97f486f39] Linux 5.6.5-rc1 git bisect bad 576aa353744ce5f1279071363e4a55e97f486f39 # good: [7509db5d111a5763a199902052eecc480e0ec724] x86/tsc_msr: Make MSR derived TSC frequency more accurate git bisect good 7509db5d111a5763a199902052eecc480e0ec724 # good: [15f1ead7d7966d087352ba2cf81a1759b25ad163] scsi: lpfc: Fix broken Credit Recovery after driver load git bisect good 15f1ead7d7966d087352ba2cf81a1759b25ad163 # good: [9e52b4ab5fadd803c8c2e617aa8c151720757fb1] s390/diag: fix display of diagnose call statistics git bisect good 9e52b4ab5fadd803c8c2e617aa8c151720757fb1 # good: [3e1e6903924fd6c95db7e46c5baa41dfa0f46fdb] powerpc/hash64/devmap: Use H_PAGE_THP_HUGE when setting up huge devmap PTE entries git bisect good 3e1e6903924fd6c95db7e46c5baa41dfa0f46fdb # good: [0344e0fee2f904ebce1d58bec8ace3ee9cf5f777] drm/dp_mst: Fix clearing payload state on topology disable git bisect good 0344e0fee2f904ebce1d58bec8ace3ee9cf5f777 # bad: [136881c0420bb52d5f21f75688f5aee1cf401737] perf/core: Unify {pinned,flexible}_sched_in() git bisect bad 136881c0420bb52d5f21f75688f5aee1cf401737 # bad: [0d928b424b99cfe0e7806c530f6039a053d5082d] drm/i915/ggtt: do not set bits 1-11 in gen12 ptes git bisect bad 0d928b424b99cfe0e7806c530f6039a053d5082d # bad: [a655a99c9f6a1d819d695fca6d48b450449f45ee] drm/amdgpu: fix gfx hang during suspend with video playback (v2) git bisect bad a655a99c9f6a1d819d695fca6d48b450449f45ee # first bad commit: [a655a99c9f6a1d819d695fca6d48b450449f45ee] drm/amdgpu: fix gfx hang during suspend with video playback (v2)
thanks, -- Shuah