<div dir="ltr"><div><div><div><div>Hello dev team, </div><div>Platform: ARM IMX6Q </div><div>Kernel: Linux-4.1.30 </div><div>DRM version: libdrm2 - 2.4.68-r0.0 </div>I am building latest plymouth-0.9.2 release on my ARM i.MX6Q platform which is running on X11 based graphics, Since this platform has DRM_VIVANTE support by default enabled for graphics, I have enabled DRM support in plymouth configuration so that I get drm.so plugin for splash screen, the system is running on "systemd-230" so we have systemd enabled by default, the plymouth starts every time but only few times the splash screen appears, also the other major issue I see is the DRM master is locked and I see lock messages If I try to bring down the Xserver or reboot the target. The following are the log messages of error and crash: ---------------------------------8<---------------------------------------------- [ 2.231409] [drm] Initialized drm 1.1.0 20060810 [ 2.236624] [drm] Initialized vivante 1.0.0 20120216 on minor 0 ... ... Starting Tell Plymouth To Write Out Runtime Data... [ OK ] Started udev Kernel Device Manager. [ OK ] Started Flush Journal to Persistent Storage. [ OK ] Started Load/Save Random Seed. [ OK ] Started udev Coldplug all Devices. [ OK ] Started Tell Plymouth To Write Out Runtime Data. Starting Create Volatile Files and Directories... Starting Show Plymouth Boot Screen.. .... .... root@mx6q:~# opkg list | grep -i plymouth plymouth - 0.9.2-r0.1 ... ... root@mx6q:~# ls /dev/dri/card0 /dev/dri/card0 root@mx6q:~# ls /dev/fb fb fb0 fb1 fb2 fb3 ... ... root@mx6q:~# cat /var/log/Xorg.0.log | grep -i drm [2674329.627] (II) xfree86: Adding drm device (/dev/dri/card0) [2674329.628] falling back to /sys/devices/platform/Vivante GCCore/drm/card0 [2674330.548] drmOpenDevice: node name is /dev/dri/card0 [2674330.548] drmOpenDevice: open result is 9, (OK) [2674330.548] drmOpenDevice: node name is /dev/dri/card0 [2674330.548] drmOpenDevice: open result is 9, (OK) [2674330.548] drmOpenByBusid: Searching for BusID platform:Vivante GCCore:00 [2674330.548] drmOpenDevice: node name is /dev/dri/card0 [2674330.548] drmOpenDevice: open result is 9, (OK) [2674330.549] drmOpenByBusid: drmOpenMinor returns 9 [2674330.549] drmOpenByBusid: drmGetBusid reports platform:Vivante GCCore:00 [2674330.549] (II) [drm] DRM interface version 1.4 [2674330.549] (II) [drm] DRM open master succeeded. [2674330.549] (II) VIVANTE(0): [drm] Using the DRM lock SAREA also for drawables. [2674330.549] (II) VIVANTE(0): [drm] framebuffer handle = 0x33a00000 [2674330.549] (II) VIVANTE(0): [drm] added 1 reserved context for kernel [2674330.549] (II) VIVANTE(0): [drm] installed DRM signal handler root@mx6q:~# ... ... ... root@mx6q:~# cat /var/log/Xorg.0.log | grep -i fb [2674329.576] Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk2p2 rootwait rw ip=none video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24 video=mxcfb1:off video=mxcfb2:off splash plymouth.ignore-serial-conss [2674329.781] (II) VIVANTE: driver for vivante fb: VivanteGC500, VivanteGC2100, [2674329.812] (II) Loading sub module "fbdevhw" [2674329.812] (II) LoadModule: "fbdevhw" [2674329.812] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [2674329.816] (II) Module fbdevhw: vendor="X.Org Foundation" [2674329.818] (II) VIVANTE(0): Device preferred mode 'fb0':S:1920x1080p-60 "Default Screen" for depth/fbbpp 24/32 [2674329.819] (**) VIVANTE(0): Option "fbdev" "/dev/fb0" [2674329.819] (II) Loading sub module "fb" [2674329.819] (II) LoadModule: "fb" [2674329.820] (II) Loading /usr/lib/xorg/modules/libfb.so [2674329.829] (II) Module fb: vendor="X.Org Foundation" [2674330.244] (II) VIVANTE(0): printing discovered frame buffer 'fb0' supported modes: [2674330.316] (II) VIVANTE(0): FBDevPreInit: adjust display width 1920 [2674330.316] (II) VIVANTE(0): Init mode for fb device [2674330.409] (II) VIVANTE(0): FB Start = 0xb5435000 FB Base = 0xb5435000 FB Offset = (nil) FB PhyBase 0x33a00000 [2674330.409] (II) VIVANTE(0): reserve 8355840 bytes for on screen frame buffer; total fb memory size 16727040 bytes; offset of shadow buffer 8355840 root@mx6q:~# .... .... .... root@mx6q:~# reboot [ 17.497191] [drm:drm_legacy_unlock] *ERROR* Process 633 using kernel context 0 [ 17.518676] [drm:drm_legacy_unlock] *ERROR* Process 633 using kernel context 0 [ 17.526643] [drm:drm_legacy_unlock] *ERROR* Process 623 using kernel context 0 [ 17.535865] [drm:drm_legacy_unlock] *ERROR* Process 623 using kernel context 0 [ 17.543426] [drm:drm_legacy_unlock] *ERROR* Process 597 using kernel context 0 [ 17.551009] [drm:drm_legacy_unlock] *ERROR* Process 624 using kernel context 0 [ 17.559455] [drm:drm_lock_take] *ERROR* 1 holds heavyweight lock [ 17.574592] [drm:drm_lock_take] *ERROR* 1 holds heavyweight lock ... ... [ 22.744931] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 22.744935] task: d8eb1900 ti: d8c86000 task.ti: d8c86000 [ 22.744948] PC is at drm_legacy_lock_free+0x30/0x100 [ 22.744960] LR is at __local_bh_enable_ip+0x60/0x100 [ 22.744966] pc : [<c03dbb44>] lr : [<c00385f4>] psr: 60070013 .... .... [ 22.745106] [<c03dbb44>] (drm_legacy_lock_free) from [<c03dbc40>] (drm_legacy_unlock+0x2c/0x6c) [ 22.745120] [<c03dbc40>] (drm_legacy_unlock) from [<c03d91e0>] (drm_ioctl+0x28c/0x4cc) [ 22.745134] [<c03d91e0>] (drm_ioctl) from [<c011be10>] (do_vfs_ioctl+0x3e8/0x608) [ 22.745143] [<c011be10>] (do_vfs_ioctl) from [<c011c064>] (SyS_ioctl+0x34/0x5c) [ 22.745161] [<c011c064>] (SyS_ioctl) from [<c000f3c0>] (ret_fast_syscall+0x0/0x3c) [ 22.745172] Code: e3530000 1a000019 e1a00007 eb12aaec (e5943000) [ 22.745178] ---[ end trace 6a02194539dcc630 ]--- ---------------------------------8<---------------------------------------------- </div>Any pointers would be highly appreciated. The consequent reboot results in total system hang without further moving on to shutdown process. </div>Thanks in Advance ! </div>Srikanth </div>