Hello, KernelCI has reported a regression on some sc7180 based platforms (lazor and kingoftown Chromebooks) for linux-next: the kernel seems to hang after initializing the SDHCI controller (~2 seconds in the boot), nothing is reported on the console after unused clocks are disabled: [ 2.241767] mmc1: Command Queue Engine enabled [ 2.257574] dwc3 a600000.usb: Adding to iommu group 9 [ 2.261398] mmc1: new HS400 Enhanced strobe MMC card at address 0001 [ 2.270452] msm_dsi ae94000.dsi: supply refgen not found, using dummy regulator [ 2.274496] mmcblk1: mmc1:0001 DA4064 58.2 GiB [ 2.294482] mmcblk1: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 [ 2.301798] mmcblk1boot0: mmc1:0001 DA4064 4.00 MiB [ 2.307847] mmcblk1boot1: mmc1:0001 DA4064 4.00 MiB [ 2.313799] mmcblk1rpmb: mmc1:0001 DA4064 16.0 MiB, chardev (507:0) [ 14.899579] clk: Disabling unused clocks This was observed on next-20231123 first and is still present on next-20231218. Full kernel log from a couple examples: - next-20231205: https://storage.kernelci.org/next/master/next-20231205/arm64/defconfig+arm64-chromebook+videodec/gcc-10/lab-collabora/baseline-nfs-sc7180-trogdor-kingoftown.html - next-20231215: https://storage.kernelci.org/next/master/next-20231215/arm64/defconfig+arm64-chromebook+videodec/gcc-10/lab-collabora/v4l2-decoder-conformance-h265-sc7180-trogdor-lazor-limozeen.html Sometimes the kernel is able to get past that point, but crashes a bit later - here's an example from a decoder conformance tests, the kernel boots fine but crashes shortly afterwards: - next-20231214: https://storage.kernelci.org/next/master/next-20231214/arm64/defconfig+arm64-chromebook+videodec/gcc-10/lab-collabora/v4l2-decoder-conformance-h265-sc7180-trogdor-kingoftown.html Any idea on what might be causing this issue? Thanks, Laura
