Hi there I just stumbled over this one: [ 31.026220] Division by zero in kernel. [ 31.026238] CPU: 1 PID: 529 Comm: X Not tainted 5.0.0-rc5-next- 20190208-dirty #153 [ 31.026244] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) [ 31.026281] [<c01120cc>] (unwind_backtrace) from [<c010c92c>] (show_stack+0x10/0x14) [ 31.026301] [<c010c92c>] (show_stack) from [<c0a7c5ac>] (dump_stack+0xb4/0xc8) [ 31.026317] [<c0a7c5ac>] (dump_stack) from [<c0a7a7e4>] (Ldiv0+0x8/0x10) [ 31.026337] [<c0a7a7e4>] (Ldiv0) from [<c0588758>] (tegra_hdmi_setup_audio+0x1ac/0xed0) [ 31.026353] [<c0588758>] (tegra_hdmi_setup_audio) from [<c0589a68>] (tegra_hdmi_encoder_enable+0x5ec/0x2a20) [ 31.026379] [<c0589a68>] (tegra_hdmi_encoder_enable) from [<c054415c>] (drm_atomic_helper_commit_modeset_enables+0x10c/0x220) [ 31.026397] [<c054415c>] (drm_atomic_helper_commit_modeset_enables) from [<c054449c>] (drm_atomic_helper_commit_tail_rpm+0x24/0x6c) [ 31.026412] [<c054449c>] (drm_atomic_helper_commit_tail_rpm) from [<c054431c>] (commit_tail+0x40/0x6c) [ 31.026427] [<c054431c>] (commit_tail) from [<c054440c>] (drm_atomic_helper_commit+0xbc/0x128) [ 31.026443] [<c054440c>] (drm_atomic_helper_commit) from [<c0547260>] (restore_fbdev_mode_atomic+0x160/0x1cc) [ 31.026457] [<c0547260>] (restore_fbdev_mode_atomic) from [<c0547420>] (drm_fb_helper_pan_display+0xc4/0x1d0) [ 31.026481] [<c0547420>] (drm_fb_helper_pan_display) from [<c04b0250>] (fb_pan_display+0x9c/0x118) [ 31.026498] [<c04b0250>] (fb_pan_display) from [<c04b0fdc>] (do_fb_ioctl+0x4b0/0x7cc) [ 31.026514] [<c04b0fdc>] (do_fb_ioctl) from [<c027e688>] (do_vfs_ioctl+0xac/0x8f8) [ 31.026527] [<c027e688>] (do_vfs_ioctl) from [<c027ef08>] (ksys_ioctl+0x34/0x60) [ 31.026540] [<c027ef08>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x54) [ 31.026546] Exception stack(0xcba59fa8 to 0xcba59ff0) [ 31.026559] 9fa0: 001527a8 00152278 0000000a 00004606 00152808 00000000 [ 31.026572] 9fc0: 001527a8 00152278 0015b368 00000036 b6f20961 0000000a bedb5dd4 00000000 [ 31.026581] 9fe0: b6af7098 bedb5b1c b6af4603 b6cdb67c [ 31.026586] Division by zero in kernel. [ 31.026595] CPU: 1 PID: 529 Comm: X Not tainted 5.0.0-rc5-next- 20190208-dirty #153 [ 31.026600] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree) [ 31.026615] [<c01120cc>] (unwind_backtrace) from [<c010c92c>] (show_stack+0x10/0x14) [ 31.026629] [<c010c92c>] (show_stack) from [<c0a7c5ac>] (dump_stack+0xb4/0xc8) [ 31.026640] [<c0a7c5ac>] (dump_stack) from [<c0a7a7e4>] (Ldiv0+0x8/0x10) [ 31.026654] [<c0a7a7e4>] (Ldiv0) from [<c05887ac>] (tegra_hdmi_setup_audio+0x200/0xed0) [ 31.026667] [<c05887ac>] (tegra_hdmi_setup_audio) from [<c0589a68>] (tegra_hdmi_encoder_enable+0x5ec/0x2a20) [ 31.026684] [<c0589a68>] (tegra_hdmi_encoder_enable) from [<c054415c>] (drm_atomic_helper_commit_modeset_enables+0x10c/0x220) [ 31.026700] [<c054415c>] (drm_atomic_helper_commit_modeset_enables) from [<c054449c>] (drm_atomic_helper_commit_tail_rpm+0x24/0x6c) [ 31.026715] [<c054449c>] (drm_atomic_helper_commit_tail_rpm) from [<c054431c>] (commit_tail+0x40/0x6c) [ 31.026729] [<c054431c>] (commit_tail) from [<c054440c>] (drm_atomic_helper_commit+0xbc/0x128) [ 31.026743] [<c054440c>] (drm_atomic_helper_commit) from [<c0547260>] (restore_fbdev_mode_atomic+0x160/0x1cc) [ 31.026755] [<c0547260>] (restore_fbdev_mode_atomic) from [<c0547420>] (drm_fb_helper_pan_display+0xc4/0x1d0) [ 31.026770] [<c0547420>] (drm_fb_helper_pan_display) from [<c04b0250>] (fb_pan_display+0x9c/0x118) [ 31.026785] [<c04b0250>] (fb_pan_display) from [<c04b0fdc>] (do_fb_ioctl+0x4b0/0x7cc) [ 31.026797] [<c04b0fdc>] (do_fb_ioctl) from [<c027e688>] (do_vfs_ioctl+0xac/0x8f8) [ 31.026809] [<c027e688>] (do_vfs_ioctl) from [<c027ef08>] (ksys_ioctl+0x34/0x60) [ 31.026820] [<c027ef08>] (ksys_ioctl) from [<c0101000>] (ret_fast_syscall+0x0/0x54) [ 31.026826] Exception stack(0xcba59fa8 to 0xcba59ff0) [ 31.026837] 9fa0: 001527a8 00152278 0000000a 00004606 00152808 00000000 [ 31.026850] 9fc0: 001527a8 00152278 0015b368 00000036 b6f20961 0000000a bedb5dd4 00000000 [ 31.026859] 9fe0: b6af7098 bedb5b1c b6af4603 b6cdb67c This has been observed on a Apalis T30 2GB running todays -next. Anybody knowing what is going on before I dig deeper? Cheers Marcel
