Hi Alex Le ven. 10 janv. 2020 à 01:03, @lex <alex.mob...@gmail.com> a écrit :
> Hi Clément, > > Sure, i will try to apply the MIPI-DSI patch to linux-next, but i see > there are a lot of changes to be made and this can take some time. > MIPI DSI is already applied in Linux-next for a64. > I will report back when i get the results. > Thanks Clement Thanks, > @lex > > On Thursday, January 9, 2020 at 8:33:13 PM UTC-3, Clément Péron wrote: >> >> Hi Alex, >> >> On Thu, 9 Jan 2020 at 22:51, @lex <alex....@gmail.com> wrote: >> > >> > Clément, >> > >> > It usually crashes while changing the LCD backlight. >> > Not sure it is related, but some time later the board enters in a sleep >> mode and shutdown itself (don't resume from that). Screen saver and power >> savings are disabled. >> >> Yes totally makes sense, >> >> Could you test with this patch on top of linux-next ? >> https://patchwork.kernel.org/patch/11326439/ >> >> Thanks >> Clément >> >> >> > >> > BR, >> > @lex >> > >> > >> > >> > On Thursday, January 9, 2020 at 4:59:39 PM UTC-3, Clément Péron wrote: >> >> >> >> Hi, >> >> >> >> On Thu, 9 Jan 2020 at 20:39, @lex <alex....@gmail.com> wrote: >> >> > >> >> > Hi Clément, >> >> > >> >> > Looks like Kernel 5.5 will be affected too. >> >> Yes but if a fix is sent it will be backported to all the kernels >> >> affected still maintained. >> >> >> >> What command do you do to reproduce this? >> >> >> >> Thanks, >> >> Clément >> >> >> >> > >> >> > Thank you. >> >> > >> >> > BR, >> >> > @lex >> >> > >> >> > >> >> > On Thursday, January 9, 2020 at 2:03:43 PM UTC-3, Clément Péron >> wrote: >> >> >> >> >> >> Hi @lex, >> >> >> >> >> >> On Thu, 9 Jan 2020 at 16:51, @lex <alex....@gmail.com> wrote: >> >> >> > >> >> >> > Just adding some info, 5.3.y has the same issue. >> >> >> >> >> >> Yes the bug is not fix mainline. >> >> >> >> >> >> I will open a discussion with the PWM maintainer >> >> >> >> >> >> Regards, >> >> >> Clement >> >> >> >> >> >> > >> >> >> > On Thursday, January 9, 2020 at 9:55:54 AM UTC-3, @lex wrote: >> >> >> >> >> >> >> >> I asked this because i have not touched the pwm-sun4i driver >> code, Only the MIPI-DSI on top of 5.4.8. >> >> >> >> >> >> >> >> On Thursday, January 9, 2020 at 9:25:11 AM UTC-3, @lex wrote: >> >> >> >>> >> >> >> >>> Thank you Vasily for the explanation. >> >> >> >>> >> >> >> >>> Is this a known bug or i have possibly introduced it while >> patching the kernel? >> >> >> >>> >> >> >> >>> On Wednesday, January 8, 2020 at 9:51:03 PM UTC-3, Vasily >> Khoruzhick wrote: >> >> >> >>>> >> >> >> >>>> The issue is that sun4i_pwm_apply() calls >> sun4i_pwm_calculate() which >> >> >> >>>> calls clk_get_rate() while holding a spinlock and >> clk_get_rate() may >> >> >> >>>> sleep. >> >> >> >>>> >> >> >> >>>> It's a bug in pwm-sun4i driver. >> >> >> >>>> >> >> >> >>>> On Wed, Jan 8, 2020 at 4:19 PM @lex <alex....@gmail.com> >> wrote: >> >> >> >>>> > >> >> >> >>>> > I am doing some experiments with LCD7" with the kernel 5.4.8 >> and occasionally i get this crash. >> >> >> >>>> > Can someone explain or give some directions on how to find >> the offending error based on the crash log? Any idea what could be causing >> this? >> >> >> >>>> > >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.681388] BUG: >> scheduling while atomic: gsd-backlight-h/3978/0x00000002 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688221] Modules >> linked in: fuse rfkill dw_hdmi_i2s_audio snd_soc_hdmi_codec >> panel_feiyang_fy07024di26a30d sunxi_cedrus(C) v4l2_mem2mem crct10dif_ce >> sun8i_drm_hdmi videobuf2_dma_contig snd_soc_spdif_tx dw_hdmi >> videobuf2_memops axp20x_adc cec videobuf2_v4l2 snd_soc_simple_card >> sunxi_cir axp20x_usb_power axp20x_ac_power snd_soc_simple_card_utils >> pinctrl_axp209 axp20x_battery phy_sun6i_mipi_dphy rc_core videobuf2_common >> mali(O) sun6i_mipi_dsi sun50i_codec_analog videodev sun8i_adda_pr_regmap >> crc_ccitt goodix sun8i_codec sun4i_i2s mc sun4i_drm sun4i_frontend >> sun4i_tcon sun8i_mixer sun8i_tcon_top pwm_bl ip_tables x_tables ipv6 >> nf_defrag_ipv6 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688331] CPU: 3 >> PID: 3978 Comm: gsd-backlight-h Tainted: G C O 5.4.8 #1 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688334] Hardware >> name: Pine64+ (DT) >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688339] Call >> trace: >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688357] >> dump_backtrace+0x0/0x150 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688364] >> show_stack+0x14/0x20 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688374] >> dump_stack+0xb4/0xd8 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688384] >> __schedule_bug+0x50/0x70 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688392] >> __schedule+0x4bc/0x510 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688397] >> schedule+0x40/0xd0 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688403] >> schedule_preempt_disabled+0x20/0x38 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688410] >> __mutex_lock.isra.10+0x150/0x568 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688416] >> __mutex_lock_slowpath+0x10/0x18 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688422] >> mutex_lock+0x38/0x40 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688430] >> clk_prepare_lock+0x40/0xa0 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688437] >> clk_get_rate+0x1c/0x70 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688446] >> sun4i_pwm_apply+0xb4/0x450 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688453] >> pwm_apply_state+0x64/0x1e8 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688464] >> pwm_backlight_update_status+0xb8/0x198 [pwm_bl] >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688473] >> backlight_device_set_brightness+0x64/0xb8 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688480] >> brightness_store+0x78/0x90 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688488] >> dev_attr_store+0x14/0x28 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688496] >> sysfs_kf_write+0x3c/0x50 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688501] >> kernfs_fop_write+0x144/0x230 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688511] >> __vfs_write+0x18/0x38 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688517] >> vfs_write+0xb4/0x1e0 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688524] >> ksys_write+0x68/0xf8 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688530] >> __arm64_sys_write+0x18/0x20 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688540] >> el0_svc_common.constprop.2+0x64/0x160 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688547] >> el0_svc_handler+0x20/0x80 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688552] >> el0_svc+0x8/0xc >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.688694] BUG: >> scheduling while atomic: gsd-backlight-h/3978/0x00000000 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695480] Modules >> linked in: fuse rfkill dw_hdmi_i2s_audio snd_soc_hdmi_codec >> panel_feiyang_fy07024di26a30d sunxi_cedrus(C) v4l2_mem2mem crct10dif_ce >> sun8i_drm_hdmi videobuf2_dma_contig snd_soc_spdif_tx dw_hdmi >> videobuf2_memops axp20x_adc cec videobuf2_v4l2 snd_soc_simple_card >> sunxi_cir axp20x_usb_power axp20x_ac_power snd_soc_simple_card_utils >> pinctrl_axp209 axp20x_battery phy_sun6i_mipi_dphy rc_core videobuf2_common >> mali(O) sun6i_mipi_dsi sun50i_codec_analog videodev sun8i_adda_pr_regmap >> crc_ccitt goodix sun8i_codec sun4i_i2s mc sun4i_drm sun4i_frontend >> sun4i_tcon sun8i_mixer sun8i_tcon_top pwm_bl ip_tables x_tables ipv6 >> nf_defrag_ipv6 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695558] CPU: 3 >> PID: 3978 Comm: gsd-backlight-h Tainted: G WC O 5.4.8 #1 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695561] Hardware >> name: Pine64+ (DT) >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695564] Call >> trace: >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695579] >> dump_backtrace+0x0/0x150 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695583] >> show_stack+0x14/0x20 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695591] >> dump_stack+0xb4/0xd8 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695600] >> __schedule_bug+0x50/0x70 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695605] >> __schedule+0x4bc/0x510 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695610] >> schedule+0x40/0xd0 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695615] >> do_notify_resume+0x1e0/0x398 >> >> >> >>>> > Jan 8 23:49:43 pine64-plus kernel: [ 5144.695620] >> work_pending+0x8/0x10 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.894318] BUG: >> scheduling while atomic: gsd-backlight-h/3987/0x00000002 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901147] Modules >> linked in: fuse rfkill dw_hdmi_i2s_audio snd_soc_hdmi_codec >> panel_feiyang_fy07024di26a30d sunxi_cedrus(C) v4l2_mem2mem crct10dif_ce >> sun8i_drm_hdmi videobuf2_dma_contig snd_soc_spdif_tx dw_hdmi >> videobuf2_memops axp20x_adc cec videobuf2_v4l2 snd_soc_simple_card >> sunxi_cir axp20x_usb_power axp20x_ac_power snd_soc_simple_card_utils >> pinctrl_axp209 axp20x_battery phy_sun6i_mipi_dphy rc_core videobuf2_common >> mali(O) sun6i_mipi_dsi sun50i_codec_analog videodev sun8i_adda_pr_regmap >> crc_ccitt goodix sun8i_codec sun4i_i2s mc sun4i_drm sun4i_frontend >> sun4i_tcon sun8i_mixer sun8i_tcon_top pwm_bl ip_tables x_tables ipv6 >> nf_defrag_ipv6 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901246] CPU: 0 >> PID: 3987 Comm: gsd-backlight-h Tainted: G WC O 5.4.8 #1 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901250] Hardware >> name: Pine64+ (DT) >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901254] Call >> trace: >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901271] >> dump_backtrace+0x0/0x150 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901277] >> show_stack+0x14/0x20 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901286] >> dump_stack+0xb4/0xd8 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901296] >> __schedule_bug+0x50/0x70 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901303] >> __schedule+0x4bc/0x510 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901307] >> schedule+0x40/0xd0 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901313] >> schedule_preempt_disabled+0x20/0x38 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901319] >> __mutex_lock.isra.10+0x150/0x568 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901324] >> __mutex_lock_slowpath+0x10/0x18 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901330] >> mutex_lock+0x38/0x40 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901337] >> clk_prepare_lock+0x40/0xa0 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901343] >> clk_get_rate+0x1c/0x70 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901352] >> sun4i_pwm_apply+0xb4/0x450 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901357] >> pwm_apply_state+0x64/0x1e8 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901368] >> pwm_backlight_update_status+0xb8/0x198 [pwm_bl] >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901375] >> backlight_device_set_brightness+0x64/0xb8 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901381] >> brightness_store+0x78/0x90 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901389] >> dev_attr_store+0x14/0x28 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901396] >> sysfs_kf_write+0x3c/0x50 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901401] >> kernfs_fop_write+0x144/0x230 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901409] >> __vfs_write+0x18/0x38 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901415] >> vfs_write+0xb4/0x1e0 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901421] >> ksys_write+0x68/0xf8 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901427] >> __arm64_sys_write+0x18/0x20 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901435] >> el0_svc_common.constprop.2+0x64/0x160 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901441] >> el0_svc_handler+0x20/0x80 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901446] >> el0_svc+0x8/0xc >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.901612] BUG: >> scheduling while atomic: gsd-backlight-h/3987/0x00000000 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908388] Modules >> linked in: fuse rfkill dw_hdmi_i2s_audio snd_soc_hdmi_codec >> panel_feiyang_fy07024di26a30d sunxi_cedrus(C) v4l2_mem2mem crct10dif_ce >> sun8i_drm_hdmi videobuf2_dma_contig snd_soc_spdif_tx dw_hdmi >> videobuf2_memops axp20x_adc cec videobuf2_v4l2 snd_soc_simple_card >> sunxi_cir axp20x_usb_power axp20x_ac_power snd_soc_simple_card_utils >> pinctrl_axp209 axp20x_battery phy_sun6i_mipi_dphy rc_core videobuf2_common >> mali(O) sun6i_mipi_dsi sun50i_codec_analog videodev sun8i_adda_pr_regmap >> crc_ccitt goodix sun8i_codec sun4i_i2s mc sun4i_drm sun4i_frontend >> sun4i_tcon sun8i_mixer sun8i_tcon_top pwm_bl ip_tables x_tables ipv6 >> nf_defrag_ipv6 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908479] CPU: 0 >> PID: 3987 Comm: gsd-backlight-h Tainted: G WC O 5.4.8 #1 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908482] Hardware >> name: Pine64+ (DT) >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908486] Call >> trace: >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908500] >> dump_backtrace+0x0/0x150 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908507] >> show_stack+0x14/0x20 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908517] >> dump_stack+0xb4/0xd8 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908526] >> __schedule_bug+0x50/0x70 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908533] >> __schedule+0x4bc/0x510 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908538] >> schedule+0x40/0xd0 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908545] >> do_notify_resume+0x1e0/0x398 >> >> >> >>>> > Jan 8 23:49:45 pine64-plus kernel: [ 5146.908551] >> work_pending+0x8/0x10 >> >> >> >>>> > >> >> >> >>>> > >> >> >> >>>> > >> >> >> >>>> > B.R >> >> >> >>>> > >> >> >> >>>> > -- >> >> >> >>>> > You received this message because you are subscribed to the >> Google Groups "linux-sunxi" group. >> >> >> >>>> > To unsubscribe from this group and stop receiving emails >> from it, send an email to linux...@googlegroups.com. >> >> >> >>>> > To view this discussion on the web, visit >> https://groups.google.com/d/msgid/linux-sunxi/91a0725f-5ce3-4244-ba98-88c1ea7e7574%40googlegroups.com. >> >> >> >> > >> >> >> > -- >> >> >> 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