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Message-ID: <79ad8816-815c-14d3-ebe1-3c5007c81dd1@gmail.com>
Date: Fri, 27 Nov 2020 01:17:53 +0200
From: Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
To: Tomi Valkeinen <tomi.valkeinen@...com>,
Aaro Koskinen <aaro.koskinen@....fi>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
ML dri-devel <dri-devel@...ts.freedesktop.org>
Cc: Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION] omapdrm/N900 display broken
Hi Tomi,
On 26.11.20 г. 16:11 ч., Tomi Valkeinen wrote:
> Hi Aaro, Ivaylo,
>
> On 24/11/2020 23:03, Ivaylo Dimitrov wrote:
>
>> Is there any progress on the issue? I tried 5.9.1 and still nothing displayed.
>
> Can you test the attached patch?
>
With this patch I don't see oops that Aaro reported, so:
Tested-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
Seems to fix the particular issue, however, now we get another oops. As
this is not upstream kernel but one with PVR related patches, I will try
again with vanilla 5.9.
Just in case oops rings any bells (the line in question is
https://github.com/maemo-leste/droid4-linux/blob/maemo-5.9/drivers/gpu/drm/omapdrm/omap_gem.c#L801)
[ 17.494506] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
[ 17.502807] pgd = c59ec13e
[ 17.505523] [00000000] *pgd=00000000
[ 17.509277] Internal error: Oops: 5 [#1] THUMB2
[ 17.513824] Modules linked in: joydev hsi_char wl1251_spi wl1251
omap3_rom_rng rng_core ir_rx51 leds_gpio led_class rc_core
snd_soc_rx51(+) isp1704_charger pwm_omap_dmtimer gpio_keys mac80211
cpufreq_dt snd_soc_omap_mcbsp snd_soc_ti_sdma cfg80211 omap3_isp
videobuf2_dma_contig videobuf2_memops libarc4 videobuf2_v4l2 omap_sham
videobuf2_common omap2430 tsc2005 panel_sony_acx565akm tsc200x_core
snd_soc_tlv320aic3x snd_soc_tpa6130a2 omap_mailbox snd_soc_core
hci_nokia snd_pcm_dmaengine si4713 bq2415x_charger phy_twl4030_usb
snd_pcm snd_timer bq27xxx_battery_i2c bq27xxx_battery snd tsl2563
musb_hdrc soundcore udc_core hci_uart btbcm ohci_platform ohci_hcd
ehci_hcd twl4030_pwrbutton st_accel_i2c st_sensors_i2c st_accel pwm_twl
st_sensors twl4030_madc pwm_twl_led industrialio_triggered_buffer
kfifo_buf evdev twl4030_vibra ff_memless bluetooth et8ek8 industrialio
ad5820 v4l2_fwnode ecdh_generic usbcore ecc libaes usb_common videodev
lis3lv02d_i2c omap_ssi lis3lv02d hsi mc
[ 17.599914] CPU: 0 PID: 10 Comm: kworker/0:1 Tainted: G U
5.9.0-02838-g91f16872ecee #5
[ 17.609161] Hardware name: Nokia RX-51 board
[ 17.613464] Workqueue: events deferred_probe_work_func
[ 17.618652] PC is at omap_gem_dma_sync_buffer
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/omap_gem.c:801)
[ 17.623901] LR is at omap_framebuffer_pin
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/omap_fb.c:237
(discriminator 2))
[ 17.628814] pc : lr : psr: 800b0033
[ 17.635101] sp : ce1cf978 ip : cbad5040 fp : 00000000
[ 17.640350] r10: 00000001 r9 : 00000000 r8 : ccbe5000
[ 17.645599] r7 : 00000177 r6 : 00000000 r5 : 00000000 r4 : cba8b000
[ 17.652160] r3 : 00000000 r2 : 00000000 r1 : 00000001 r0 : cba8b000
[ 17.658721] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA Thumb
Segment none
[ 17.666046] Control: 50c5387d Table: 8cb3c019 DAC: 00000051
[ 17.671813] Process kworker/0:1 (pid: 10, stack limit = 0x4150a91a)
[ 17.678131] Stack: (0xce1cf978 to 0xce1d0000)
[ 17.682495] f960:
8e900000 cba8b000
[ 17.690734] f980: 00000000 c04410e7 cba8b000 cbc75000 00000000
cbc75080 00000000 cbc750a0
[ 17.698944] f9a0: 00000001 cbc7507c cbbb5538 c0440ad9 ccc3ffc0
00000002 00000000 00000000
[ 17.707183] f9c0: 00000001 00000000 ccbe5160 c0411be9 c0413509
ccc3ffc0 00000000 ccbe5000
[ 17.715393] f9e0: 00000000 c041355b c041350d ccc3ffc0 ce1cfa0c
ccbe5000 cbdfa100 c042e9c9
[ 17.723602] fa00: 00000000 c0a04048 00000001 ce0bba80 00000004
00000007 00000000 00000000
[ 17.731842] fa20: cb816858 ccc15a20 00000000 be70958a 00000000
ccbe5000 cbdfa118 cd742600
[ 17.740051] fa40: cbdfa100 c0aed344 00000064 0000001e 00000001
c042ea7b cbc750c0 c0aef518
[ 17.748291] fa60: cbdfa1a8 ccbe5054 ccbe5054 cbdfa100 ccbe5000
cd742600 cbdfa1a8 c0aed344
[ 17.756500] fa80: 00000064 c042eb31 cbdfa1a8 cbdfa100 00000000
c0416199 ccba8400 00000000
[ 17.764739] faa0: ccba8400 cd742600 00000000 c04161f1 ce08e000
c03cad8f c0a04048 c01c92bd
[ 17.772949] fac0: 00000064 0000001e 00200000 00000000 00000000
ce08e000 c0aefc30 00000000
[ 17.781188] fae0: 00000000 c0641e80 00000000 c0aefb34 ce08e000
c03f627b 00000000 00000000
[ 17.789398] fb00: 00000000 00000001 00000000 c03f7875 c0a04048
c0a6de84 c0768eab 0000003e
[ 17.797637] fb20: 00000001 c0aef63c c0a6de84 00000000 c0aef634
c0641e80 00000000 0000003e
[ 17.805847] fb40: 00000000 00000001 c0aefc34 c03f7b09 c0a6de84
c076ebc5 00000001 ce1cfba4
[ 17.814056] fb60: ccba8618 c0aed21c c0a69bf4 c0aed220 c0a04850
c0a04048 ccba8410 ccba8618
[ 17.822296] fb80: 000001e0 c03c9239 ccba8400 00000000 c0aed214
c03c4cc9 c0768b17 00000000
[ 17.830505] fba0: 00000000 00000000 00000000 00000320 000001e0
00000000 00000000 00000000
[ 17.838745] fbc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000020 be70958a
[ 17.846954] fbe0: cbdfa100 c0a7208c ccba8400 00000000 ccbe5000
00000000 cbdfa1a8 c0415ec7
[ 17.855194] fc00: cbdfa118 00000001 ccfc598c 00000000 00000000
00000320 000001e0 00000320
[ 17.863403] fc20: 000001e0 00000020 00000018 be70958a c0a7208c
cbdfa100 ccbe5000 ce365000
[ 17.871612] fc40: ce365000 00000002 cbbb5080 ce3650e8 ce365044
c0443ce7 00000000 ccbe5000
[ 17.879852] fc60: ce365000 c043f113 00000000 00000000 00000002
00000000 c0a72fe4 00000000
[ 17.888061] fc80: cd49a210 c0a72fe4 c0af3c20 00000000 c0a72fe4
00000045 c0a731c0 c044990b
[ 17.896301] fca0: cd49a210 00000000 c0af3c28 c04487bf cd49a210
c0a72fe4 ce1cfd0c c0448a31
[ 17.904510] fcc0: 00000001 00000000 00000000 c04489c3 00000000
c0a04048 00000000 c044766f
[ 17.912750] fce0: cd49a254 ce09f1dc ce576ab4 be70958a c0a731c0
cd49a210 c0a73678 c0a04048
[ 17.920959] fd00: cd49a254 c04488fd cd49a210 cd49a210 00000001
be70958a cd49a210 c0a73678
[ 17.929199] fd20: cd49a210 c0a04048 c0a734c8 c0447e2f cd49a210
00000000 c0a731c0 c0446753
[ 17.937408] fd40: ce21be10 00000018 00000000 c03a66b3 c0a04048
be70958a 00000000 cd49a200
[ 17.945617] fd60: 00000000 00000000 ccbe2400 c0a12190 c0a121b0
00000000 c0a731a4 c04497c3
[ 17.953857] fd80: be70958a cd49a200 ce1cfdb0 00000000 ccbe2400
ce21be10 00000018 c0449d9b
[ 17.962066] fda0: 00000000 c0a04048 cbb24018 c04325d7 00000000
00000000 00000000 c077a4af
[ 17.970306] fdc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 17.978515] fde0: 00000000 00000000 00000018 be70958a cbb24540
cbb24180 cbb24018 00000002
[ 17.986755] fe00: cbbeadc0 c0444251 c0a731b8 cbb24180 c0a731a4
ce21be10 c06632fc ce21be00
[ 17.994964] fe20: c0a04048 ce21be00 cfcac160 c0444589 c0666cb0
c06632fc cbbeadc0 00000000
[ 18.003204] fe40: ccbe2400 ce21be10 00000002 c0432c39 cbbeadc0
ce21be10 ce1cfe50 be70958a
[ 18.011413] fe60: c0a726dc 00000000 ce21be10 c0a726dc c0af3c20
00000000 c0a726dc 00000043
[ 18.019653] fe80: c0a91e94 c044990b ce21be10 00000000 c0af3c28
c04487bf ce21be10 c0a726dc
[ 18.027862] fea0: ce1cfef4 c0448a31 00000001 00000000 c0a73430
c04489c3 00000000 c0a04048
[ 18.036071] fec0: 00000000 c044766f ce21be54 ce09f1dc ce3ba4b4
be70958a c0a91e94 ce21be10
[ 18.044311] fee0: c0a73678 c0a04048 ce21be54 c04488fd ce21be10
ce21be10 00000001 be70958a
[ 18.052520] ff00: c0a73400 c0a73678 ce21be10 cfc74200 00000000
c0447e2f c0a73400 ce21be10
[ 18.060760] ff20: c0a73444 c04482f7 ce1ae400 c0a7342c c0a13e5c
c01271e5 ce1ae400 c0a7342c
[ 18.068969] ff40: ffff2126 ce1ae400 ce1ae414 c0a13e5c c0a91878
c0a1c4a0 c0a13e70 c0a970e8
[ 18.077209] ff60: 00000000 c012758b 00000000 ce1b8a40 ce1b8a00
ce1ce000 c012743d ce1ae400
[ 18.085418] ff80: ce0c5ec0 ce1b8a60 00000000 c012ae47 ce1b8a00
c012ad89 00000000 00000000
[ 18.093658] ffa0: 00000000 00000000 00000000 c0100159 00000000
00000000 00000000 00000000
[ 18.101867] ffc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 18.110076] ffe0: 00000000 00000000 00000000 00000000 00000013
00000000 00000000 00000000
[ 18.118316] (omap_gem_dma_sync_buffer) from omap_framebuffer_pin
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/omap_fb.c:237
(discriminator 2))
[ 18.127685] (omap_framebuffer_pin) from
drm_atomic_helper_prepare_planes
(/home/user/git/linux-omap/drivers/gpu/drm/drm_atomic_helper.c:2401
/home/user/git/linux-omap/drivers/gpu/drm/drm_atomic_helper.c:2376)
[ 18.137756] (drm_atomic_helper_prepare_planes) from
drm_atomic_helper_commit
(/home/user/git/linux-omap/drivers/gpu/drm/drm_atomic_helper.c:1820
/home/user/git/linux-omap/drivers/gpu/drm/drm_atomic_helper.c:1796)
[ 18.148162] (drm_atomic_helper_commit) from
drm_client_modeset_commit_atomic
(/home/user/git/linux-omap/./arch/arm/include/asm/atomic.h:224
/home/user/git/linux-omap/./include/linux/atomic-fallback.h:276
/home/user/git/linux-omap/./include/linux/refcount.h:266
/home/user/git/linux-omap/./include/linux/refcount.h:294
/home/user/git/linux-omap/./include/linux/kref.h:64
/home/user/git/linux-omap/./include/drm/drm_atomic.h:437
/home/user/git/linux-omap/drivers/gpu/drm/drm_client_modeset.c:1048)
[ 18.158660] (drm_client_modeset_commit_atomic) from
drm_client_modeset_commit_locked
(/home/user/git/linux-omap/drivers/gpu/drm/drm_client_modeset.c:1148)
[ 18.169769] (drm_client_modeset_commit_locked) from
drm_client_modeset_commit
(/home/user/git/linux-omap/drivers/gpu/drm/drm_client_modeset.c:1173)
[ 18.180267] (drm_client_modeset_commit) from
__drm_fb_helper_restore_fbdev_mode_unlocked
(/home/user/git/linux-omap/drivers/gpu/drm/drm_fb_helper.c:238)
[ 18.191741] (__drm_fb_helper_restore_fbdev_mode_unlocked) from
drm_fb_helper_set_par
(/home/user/git/linux-omap/drivers/gpu/drm/drm_fb_helper.c:1344)
[ 18.202819] (drm_fb_helper_set_par) from fbcon_init
(/home/user/git/linux-omap/drivers/video/fbdev/core/fbcon.c:1141)
[ 18.211242] (fbcon_init) from visual_init
(/home/user/git/linux-omap/drivers/tty/vt/vt.c:1075)
[ 18.218597] (visual_init) from do_bind_con_driver
(/home/user/git/linux-omap/drivers/tty/vt/vt.c:3659)
[ 18.226837] (do_bind_con_driver) from do_take_over_console
(/home/user/git/linux-omap/drivers/tty/vt/vt.c:4241)
[ 18.235748] (do_take_over_console) from do_fbcon_takeover
(/home/user/git/linux-omap/drivers/video/fbdev/core/fbcon.c:566)
[ 18.244506] (do_fbcon_takeover) from register_framebuffer
(/home/user/git/linux-omap/./include/linux/fb.h:641
/home/user/git/linux-omap/drivers/video/fbdev/core/fbmem.c:1661
/home/user/git/linux-omap/drivers/video/fbdev/core/fbmem.c:1828)
[ 18.253417] (register_framebuffer) from
__drm_fb_helper_initial_config_and_unlock
(/home/user/git/linux-omap/drivers/gpu/drm/drm_fb_helper.c:1823)
[ 18.264434] (__drm_fb_helper_initial_config_and_unlock) from
omap_fbdev_init
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/omap_fbdev.c:258)
[ 18.274841] (omap_fbdev_init) from pdev_probe
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/omap_drv.c:826
/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/omap_drv.c:902)
[ 18.282745] (pdev_probe) from platform_drv_probe
(/home/user/git/linux-omap/drivers/base/platform.c:748)
[ 18.290710] (platform_drv_probe) from really_probe
(/home/user/git/linux-omap/drivers/base/dd.c:562)
[ 18.299011] (really_probe) from driver_probe_device
(/home/user/git/linux-omap/drivers/base/dd.c:738)
[ 18.307250] (driver_probe_device) from bus_for_each_drv
(/home/user/git/linux-omap/drivers/base/bus.c:431)
[ 18.315826] (bus_for_each_drv) from __device_attach
(/home/user/git/linux-omap/drivers/base/dd.c:914)
[ 18.324035] (__device_attach) from bus_probe_device
(/home/user/git/linux-omap/drivers/base/bus.c:493)
[ 18.332275] (bus_probe_device) from device_add
(/home/user/git/linux-omap/drivers/base/core.c:2927)
[ 18.340240] (device_add) from platform_device_add
(/home/user/git/linux-omap/drivers/base/platform.c:598 (discriminator 3))
[ 18.348358] (platform_device_add) from platform_device_register_full
(/home/user/git/linux-omap/drivers/base/platform.c:721)
[ 18.358093] (platform_device_register_full) from dss_bind
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/dss/dss.c:1319)
[ 18.366821] (dss_bind) from try_to_bring_up_master
(/home/user/git/linux-omap/drivers/base/component.c:257
/home/user/git/linux-omap/drivers/base/component.c:234)
[ 18.374969] (try_to_bring_up_master) from
component_master_add_with_match
(/home/user/git/linux-omap/drivers/base/component.c:494
/home/user/git/linux-omap/drivers/base/component.c:467)
[ 18.385101] (component_master_add_with_match) from dss_probe
(/home/user/git/linux-omap/drivers/gpu/drm/omapdrm/dss/dss.c:1506)
[ 18.394287] (dss_probe) from platform_drv_probe
(/home/user/git/linux-omap/drivers/base/platform.c:748)
[ 18.402160] (platform_drv_probe) from really_probe
(/home/user/git/linux-omap/drivers/base/dd.c:562)
[ 18.410491] (really_probe) from driver_probe_device
(/home/user/git/linux-omap/drivers/base/dd.c:738)
[ 18.418701] (driver_probe_device) from bus_for_each_drv
(/home/user/git/linux-omap/drivers/base/bus.c:431)
[ 18.427276] (bus_for_each_drv) from __device_attach
(/home/user/git/linux-omap/drivers/base/dd.c:914)
[ 18.435516] (__device_attach) from bus_probe_device
(/home/user/git/linux-omap/drivers/base/bus.c:493)
[ 18.443725] (bus_probe_device) from deferred_probe_work_func
(/home/user/git/linux-omap/drivers/base/dd.c:116)
[ 18.452758] (deferred_probe_work_func) from process_one_work
(/home/user/git/linux-omap/./include/linux/jump_label.h:254
/home/user/git/linux-omap/./include/linux/jump_label.h:264
/home/user/git/linux-omap/./include/trace/events/workqueue.h:108
/home/user/git/linux-omap/kernel/workqueue.c:2274)
[ 18.461853] (process_one_work) from worker_thread
(/home/user/git/linux-omap/kernel/workqueue.c:2416)
[ 18.470092] (worker_thread) from kthread
(/home/user/git/linux-omap/kernel/kthread.c:292)
[ 18.477355] (kthread) from ret_from_fork
(/home/user/git/linux-omap/arch/arm/kernel/entry-common.S:156)
[ 18.484588] Exception stack(0xce1cffb0 to 0xce1cfff8)
[ 18.489685] ffa0: 00000000
00000000 00000000 00000000
[ 18.497894] ffc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 18.506103] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 18.512786] Code: f8d4 30f4 ea4f 0b86 (f853) 2026
All code
========
0: d4 (bad)
1: f8 clc
2: f4 hlt
3: 30 4f ea xor %cl,-0x16(%rdi)
6: 86 0b xchg %cl,(%rbx)
8:* 53 push %rbx <-- trapping instruction
9: f8 clc
a: 26 es
b: 20 .byte 0x20
Code starting with the faulting instruction
===========================================
0: 53 push %rbx
1: f8 clc
2: 26 es
3: 20 .byte 0x20
Ivo
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