12131 2017-09-27 08:20:54 +0000 Kernel traceback when reboot beaglebone black 2018-03-22 23:17:30 +0000 1 1 7 Build System, Metadata & Runtime BSPs bsps-meta-yocto 2.4 x86 Multiple VERIFIED FIXED Medium+ normal 2.5 M3 1 yi.zhao kexin.hao libertad.gonzalez.de.la.cruz randy.macleod sgw stephano yi.zhao yi.zhao --- Regression (Used to work) No (bug/feature does not impact docs) oldest_to_newest 77161 0 yi.zhao 2017-09-27 08:20:54 +0000 Image location: https://autobuilder.yocto.io/pub/releases/yocto-2.4.rc1/machines/beaglebone/ Git rev: master/592c3449697ce39bf07864fafd7f0a61ca230561 Steps: 1. Download core-image-sato-sdk wic image from the above link. 2. Deploy the wic image to micro SD card and boot the system 3. reboot the system There are some kernel backtrace messages when reboot the system: #################################### root@beaglebone:~# reboot INIT: Sending processes the TERM signal root@beaglebone:~# Stopping OpenBSD Secure Shell server: sshdstopped /usr/sbin/sshd (pid 536) . [ ok ]pping Avahi mDNS/DNS-SD Daemon: avahi-daemon Stopping atd: OK Stopping bluetooth: bluetoothd. Stopping system message bus: dbus. cpsw 4a100000.ethernet eth0: Link is Down Stopping syslogd/klogd: stopped syslogd (pid 568) stopped klogd (pid 571) Division by zero in kernel. CPU: 0 PID: 549 Comm: Xorg Not tainted 4.12.12-yocto-standard #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c010f544>] (unwind_backtrace) from [<c010c35c>] (show_stack+0x20/0x24) [<c010c35c>] (show_stack) from [<c04b4554>] (dump_stack+0x20/0x28) [<c04b4554>] (dump_stack) from [<c010c1e8>] (__div0+0x20/0x28) [<c010c1e8>] (__div0) from [<c04b326c>] (Ldiv0+0x8/0x10) [<c04b326c>] (Ldiv0) from [<c05b3014>] (tilcdc_crtc_update_fb+0xb0/0x1c0) [<c05b3014>] (tilcdc_crtc_update_fb) from [<c05b1eb8>] (tilcdc_plane_atomic_update+0x54/0x5c) [<c05b1eb8>] (tilcdc_plane_atomic_update) from [<c0566b28>] (drm_atomic_helper_commit_planes+0x170/0x250) [<c0566b28>] (drm_atomic_helper_commit_planes) from [<c05b5058>] (tilcdc_commit+0x50/0x7c) [<c05b5058>] (tilcdc_commit) from [<c0583714>] (drm_atomic_commit+0x54/0x68) [<c0583714>] (drm_atomic_commit) from [<c0567250>] (drm_atomic_helper_set_config+0x68/0x8c) [<c0567250>] (drm_atomic_helper_set_config) from [<c0577aa0>] (__drm_mode_set_config_internal+0x4c/0xe0) [<c0577aa0>] (__drm_mode_set_config_internal) from [<c057840c>] (drm_mode_setcrtc+0x3fc/0x494) [<c057840c>] (drm_mode_setcrtc) from [<c0570e8c>] (drm_ioctl+0x324/0x3ac) [<c0570e8c>] (drm_ioctl) from [<c027056c>] (vfs_ioctl+0x30/0x44) [<c027056c>] (vfs_ioctl) from [<c0270750>] (do_vfs_ioctl+0x94/0x874) [<c0270750>] (do_vfs_ioctl) from [<c0270f90>] (SyS_ioctl+0x60/0x7c) [<c0270f90>] (SyS_ioctl) from [<c01079a0>] (ret_fast_syscall+0x0/0x3c) done Stopping tcf-agent: OK ############################# 77515 1 kexin.hao 2017-10-11 11:04:33 +0000 I have sent a patch to Jyri Sarha (the maintainer of TI LCDC) and the patch is still in review. 78336 2 kexin.hao 2017-11-23 01:39:54 +0000 The patch for this issue has been merged in the mainline and should propagate to the stable soon. 79016 3 yi.zhao 2018-01-11 00:57:37 +0000 This issue still exists in 2.5 M1 RC3 build. 79120 4 kexin.hao 2018-01-18 10:25:39 +0000 The patch has been merged into mainline three months ago, but the process to propagate to stable kernel is much slow than I expect. So I will submit this patch to the linux-yocto directly. 79953 5 yi.zhao 2018-03-22 23:17:30 +0000 Verified with 2.5 M3 RC1. Git rev: master/f49ee61422c867516db252054e993df29f775136