On Thu, Aug 16, 2018 at 1:38 PM, John Stultz <john.stultz@xxxxxxxxxx> wrote: > > Unfortunately bumping the max width/height values to 4096 cause the > system to hard hang as userspace starts up (and setting it to > 2048/2160 does the same). > > So yea, I'm going to continue to dig at the hard-hang issue, and > hopefully we can just bump the max width/height, but if there are > other suggestions, please let me know. So still digging on the hard hang after bumping the max_height value. It seems to trigger as the display is being initialized by userland, so if I boot with the HDMI cable unplugged the kernel boots fine (as userland error loops looking for a display). Then when I hotplug the HDMI cable it will hang. Booting with drm_debug=0xe, (and doing the HDMI hotplug after bootup) I see: [ 63.172368] [drm:dsi_encoder_phy_mode_valid] OK! [ 63.185522] [drm:drm_calc_timestamping_constants] crtc 29: hwmode: htotal 2200, vtotal 1125, vdisplay 1080 [ 63.195213] [drm:drm_calc_timestamping_constants] crtc 29: clock 148500 kHz framedur 16666666 linedur 14814 [ 63.205114] [drm:ade_ldi_set_mode.isra.9] set mode: 1920x1080 [ 63.212529] [drm:ade_ldi_set_mode.isra.9] set mode: 1920x1080 [ 63.218333] [drm:ade_plane_atomic_update] channel1: src:(0, 0)-1920x1080, crtc:(0, 0)-1920x1080 [ 63.218346] [drm:ade_plane_atomic_update] rdma1: (y=0, height=1080), stride=7680, paddr=0x77d00000 [ 63.236111] [drm:ade_plane_atomic_update] addr=0x77d00000, fb:1920x2160, pixel_format=2(XR24 little-endian (0x34325258)) [ 63.238695] Mali<2>: [ 63.247032] [drm:ade_plane_atomic_update] clip1: clip_left=0, clip_right=0 [ 63.247053] [drm:drm_vblank_enable] enabling vblank on crtc 0, ret: 0 [ 63.249319] Session 0x74ACAE00 with pid 2249 was granted higher priority. [ 63.256253] [drm:ade_dump_regs] [rdma1]: reload(0) [ 63.273400] [drm:drm_handle_vblank] vblank event on 1, current 1 [ 63.274362] [drm:ade_dump_regs] [rdma1]: reg_ctrl(0x00020000) [ 63.286201] [drm:ade_dump_regs] [rdma1]: reg_addr(0x77d00000) [ 63.286208] [drm:ade_dump_regs] [rdma1]: reg_size(0x04381e00) [ 63.286214] [drm:ade_dump_regs] [rdma1]: reg_stride(0x00001e00) [ 63.286221] [drm:ade_dump_regs] [rdma1]: reg_space(0x007e9000) [ 63.286227] [drm:ade_dump_regs] [rdma1]: reg_en(0x00000000) [ 63.286234] [drm:ade_dump_regs] [clip1]: reload(0) [ 63.286248] [drm:ade_dump_regs] [clip1]: reg_clip_disable(0x00000001) [ 63.326460] [drm:ade_dump_regs] [clip1]: reg_clip_size0(0x077f0437) [ 63.332786] [drm:ade_dump_regs] [clip1]: reg_clip_size1(0x00000000) [ 63.339102] [drm:ade_dump_regs] [overlay ch0]: reg_ch_xy0(0x00000000) [ 63.345596] [drm:ade_dump_regs] [overlay ch0]: reg_ch_xy1(0x077f0437) [ 63.350809] init: Received control message 'start' for 'bootanim' from pid: 2249 (/system/bin/surfaceflinger) [ 63.352091] [drm:ade_dump_regs] [overlay ch0]: reg_ch_ctl(0x107f806c) [ 63.362726] init: starting service 'bootanim'... [ 63.368494] [drm:ade_dump_regs] [overlay2]: reload(0) [ 63.368506] [drm:ade_dump_regs] [overlay2]: reg_ctl(0x00000000) [ 63.384170] [drm:ade_dump_regs] ovly_ctl(0x00000002) [ 63.390826] [drm:dsi_encoder_enable] htot=2200, hfp=88, hbp=148, hsw=44 [ 63.397502] [drm:dsi_encoder_enable] vtol=1125, vfp=4, vbp=36, vsw=5 [ 63.403902] [drm:dsi_encoder_enable] hsa_time=33, hbp_time=111, hline_time=1650 [ 63.411250] [drm:dsi_encoder_enable] lanes=4, pixel_clk=144000 kHz, bytes_freq=108000 kHz [ 63.428238] [drm:drm_mode_object_put] OBJ ID: 31 (5) <hang> Not always, but sometimes as it hangs I'll see: [drm:vblank_disable_fn] disabling vblank on crtc 0 And sometimes I'll also see: Insufficient stack space to handle exception! So I'm not sure if there's a screaming interrupt or what (nor am I sure what from the problematic changes would cause that change either). thanks -john _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
