Message-ID: <0679a5bb-88d1-077d-6107-d5f88ef60dbf@fi.rohmeurope.com>
Date:   Fri, 17 Sep 2021 10:28:58 +0000
From:   "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
To:     Tony Lindgren <tony@...mide.com>
CC:     "linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Suman Anna <s-anna@...com>,
        Paul Barker <paul.barker@...cloud.com>,
        Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Benoît Cousson <bcousson@...libre.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: beaglebone black boot failure Linux v5.15.rc1

Hi deeee Ho Tony & All,

On 9/17/21 09:14, Tony Lindgren wrote:
> Hi,
> 
> * Vaittinen, Matti <Matti.Vaittinen@...rohmeurope.com> [210916 09:15]:

>> My beaglebone black (rev c) based test environment fails to boot with
>> v5.15-rc1. Boot succeeds with the v5.14.
>>
>> Bisecting the Linus' tree pointed out the commit:
>> [1c7ba565e70365763ea780666a3eee679344b962] ARM: dts: am335x-baltos:
>> switch to new cpsw switch drv
>>
>> I don't see this exact commit touching the BBB device-tree. In Linus'
>> tree it is a part of a merge commit. Reverting the whole merge on top of
>> the v5.15-rc1
>>
>> This reverts commit 81b6a285737700c2e04ef0893617b80481b6b4b7, reversing
>> changes made to f73979109bc11a0ed26b6deeb403fb5d05676ffc.
>>
>> makes my beaglebone black to boot again.
>>
>> Yesterday I tried adding this patch:
>> https://lore.kernel.org/linux-omap/20210915065032.45013-1-tony@atomide.com/T/#u
>> pointed by Tom on top of the v5.15-rc1 - no avail. I also did #define
>> DEBUG at ti-sys.c as was suggested by Tom - but I don't see any more output.
> 
> Correction, that was me, not Tom :)

Oh.. Sorry! I don't know where I picked Tom from... My bad!

> For me, adding any kind of delay fixed the issue. Also adding some printk
> statements fixed it for me.
> 
>> Any suggestions what to check next?
> 
> Maybe try the attached patch? If it helps, just try with the with the
> ti,sysc-delay-us = <2> added as few modules need that after enable.
> 
> It's also possible there is an issue with some other device that is now
> getting enabled other than pruss. The last XXX printk output should show
> the last device being probed.
> 
> Looks like you need to also enable CONFIG_SERIAL_EARLYCON=y, and pass
> console=ttyS0,115200 debug earlycon in the kernel command line.

Ah. Thanks again. I indeed lacked the "debug earlycon" parameters. Now 
we're more likely to see what went wrong :) I pasted the serial log form 
failing boot with v5.15-rc1 which has both the patch you linked me above 
and the patch you suggested me to test in previous email.


Best Regards
	Matti



[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.15.0-rc1-00002-g5285574596c0 
(mvaittin@...ora) (arm-linux-gnueabihf-gcc (Linaro GCC 6.4-2017.11) 
6.4.1 20171012, GNU ld (Linaro_Binutils-2017.11) 2.27.0.20161229) #552 
Fri Sep 17 15:12:34 EEST 2021
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), 
cr=50c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing 
instruction cache
[    0.000000] OF: fdt: Machine model: TI AM335x BeagleBone Black
[    0.000000] earlycon: omap8250 at MMIO 0x44e09000 (options '')
[    0.000000] printk: bootconsole [omap8250] enabled
[    0.000000] Memory policy: Data cache writeback
[    0.000000] efi: UEFI not found.
[    0.000000] cma: Reserved 48 MiB at 0x9c800000
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000080000000-0x000000009fefffff]
[    0.000000]   HighMem  empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x000000009fefffff]
[    0.000000] Initmem setup node 0 [mem 
0x0000000080000000-0x000000009fefffff]
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.1 (sgx neon)
[    0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 129666
[    0.000000] Kernel command line: console=ttyS0,115200n8 debug 
earlycon root=/dev/nfs rw nfsroot=192.168.255.126:/home/mvaittin/nfs 
ip=192.168.255.1:192.168.255.126::255.255.255.0:bbb1:eth0 nfsrootdebug
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 
bytes, linear)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 
bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 450224K/523264K available (9216K kernel code, 
1684K rwdata, 4988K rodata, 1024K init, 350K bss, 23888K reserved, 
49152K cma-reserved, 0K highmem)
[    0.000000] random: get_random_u32 called from 
cache_alloc_refill+0x301/0x670 with crng_init=0
[    0.000000] ftrace: allocating 45825 entries in 135 pages
[    0.000000] ftrace: allocated 135 pages with 4 groups
[    0.000000] trace event string verifier disabled
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 
interrupts
[    0.000000] TI gptimer clocksource: always-on 
/ocp/interconnect@...00000/segment@...000/target-module@...00
[    0.000001] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps 
every 89478484971ns
[    0.008062] clocksource: dmtimer: mask: 0xffffffff max_cycles: 
0xffffffff, max_idle_ns: 79635851949 ns
[    0.017961] TI gptimer clockevent: 24000000 Hz at 
/ocp/interconnect@...00000/segment@...arget-module@...00
[    0.029510] Console: colour dummy device 80x30
[    0.034199] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
[    0.062394] pid_max: default: 32768 minimum: 301
[    0.067399] LSM: Security Framework initializing
[    0.072239] Yama: becoming mindful.
[    0.075866] SELinux:  Initializing.
[    0.079586] TOMOYO Linux initialized
[    0.083392] Mount-cache hash table entries: 1024 (order: 0, 4096 
bytes, linear)
[    0.090929] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 
bytes, linear)
[    0.100024] CPU: Testing write buffer coherency: ok
[    0.105111] CPU0: Spectre v2: using BPIALL workaround
[    0.111068] Setting up static identity map for 0x80100000 - 0x80100054
[    0.118820] EFI services will not be available.
[    0.124132] devtmpfs: initialized
[    0.143080] VFP support v0.3: implementor 41 architecture 3 part 30 
variant c rev 3
[    0.151366] clocksource: jiffies: mask: 0xffffffff max_cycles: 
0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.161419] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.173171] pinctrl core: initialized pinctrl subsystem
[    0.179555] DMI not present or invalid.
[    0.184021] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.192575] DMA: preallocated 256 KiB pool for atomic coherent 
allocations
[    0.200114] audit: initializing netlink subsys (disabled)
[    0.206594] thermal_sys: Registered thermal governor 'fair_share'
[    0.206609] thermal_sys: Registered thermal governor 'bang_bang'
[    0.212920] audit: type=2000 audit(0.144:1): state=initialized 
audit_enabled=0 res=1
[    0.227080] thermal_sys: Registered thermal governor 'step_wise'
[    0.227450] cpuidle: using governor menu
[    0.252742] No ATAGs?
[    0.255098] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.276698] iommu: Default domain type: Translated
[    0.281759] iommu: DMA domain TLB invalidation policy: strict mode
[    0.289435] vgaarb: loaded
[    0.292741] SCSI subsystem initialized
[    0.296853] libata version 3.00 loaded.
[    0.301078] usbcore: registered new interface driver usbfs
[    0.306782] usbcore: registered new interface driver hub
[    0.312290] usbcore: registered new device driver usb
[    0.317793] mc: Linux media interface: v0.10
[    0.322230] videodev: Linux video capture interface: v2.00
[    0.327985] pps_core: LinuxPPS API ver. 1 registered
[    0.333096] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 
Rodolfo Giometti <giometti@...ux.it>
[    0.342511] PTP clock support registered
[    0.347879] NetLabel: Initializing
[    0.351420] NetLabel:  domain hash size = 128
[    0.355903] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.361822] NetLabel:  unlabeled traffic allowed by default
[    0.368330] clocksource: Switched to clocksource dmtimer
[    0.470970] VFS: Disk quotas dquot_6.6.0
[    1.116330] random: fast init done
[    1.439253] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 
bytes)
[    1.455668] NET: Registered PF_INET protocol family
[    1.460941] IP idents hash table entries: 8192 (order: 4, 65536 
bytes, linear)
[    1.469100] tcp_listen_portaddr_hash hash table entries: 512 (order: 
0, 4096 bytes, linear)
[    1.477779] TCP established hash table entries: 4096 (order: 2, 16384 
bytes, linear)
[    1.485792] TCP bind hash table entries: 4096 (order: 2, 16384 bytes, 
linear)
[    1.493170] TCP: Hash tables configured (established 4096 bind 4096)
[    1.499824] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    1.506575] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, 
linear)
[    1.513951] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    1.520473] RPC: Registered named UNIX socket transport module.
[    1.526589] RPC: Registered udp transport module.
[    1.531433] RPC: Registered tcp transport module.
[    1.536274] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.542911] PCI: CLS 0 bytes, default 64
[    1.549012] Initialise system trusted keyrings
[    1.554162] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    1.560945] zbud: loaded
[    1.564591] NFS: Registering the id_resolver key type
[    1.569909] Key type id_resolver registered
[    1.574229] Key type id_legacy registered
[    1.578394] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.585301] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver 
Registering...
[    1.593170] fuse: init (API version 7.34)
[    1.597646] orangefs_debugfs_init: called with debug mask: :none: :0:
[    1.604488] orangefs_init: module version upstream loaded
[    1.610057] SGI XFS with ACLs, security attributes, realtime, quota, 
no debug enabled
[    1.707849] Key type asymmetric registered
[    1.712211] Asymmetric key parser 'x509' registered
[    1.717380] Block layer SCSI generic (bsg) driver version 0.4 loaded 
(major 244)
[    1.725139] io scheduler mq-deadline registered
[    1.729818] io scheduler kyber registered
[    1.734615] ti-sysc target-module@...00000: XXX sysc_probe
[    1.742605] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[    1.753477] libphy: Fixed MDIO Bus: probed
[    1.758477] CAN device driver interface
[    1.762960] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.769732] ehci-pci: EHCI PCI platform driver
[    1.774387] ehci-platform: EHCI generic platform driver
[    1.779857] ehci-omap: OMAP-EHCI Host Controller driver
[    1.785360] usbcore: registered new interface driver usb-storage
[    1.793033] i2c_dev: i2c /dev entries driver
[    1.798277] softdog: initialized. soft_noboot=0 soft_margin=60 sec 
soft_panic=0 (nowayout=1)
[    1.806989] softdog:              soft_reboot_cmd=<not set> 
soft_active_on_boot=0
[    1.814789] cpuidle: enable-method property 'ti,am3352' found operations
[    1.822160] ledtrig-cpu: registered to indicate activity on CPUs
[    1.828718] hid: raw HID events driver (C) Jiri Kosina
[    1.834493] usbcore: registered new interface driver usbhid
[    1.840257] usbhid: USB HID core driver
[    1.844610] drop_monitor: Initializing network drop monitor service
[    1.851533] NET: Registered PF_INET6 protocol family
[    1.857872] Segment Routing with IPv6
[    1.861728] In-situ OAM (IOAM) with IPv6
[    1.865858] mip6: Mobile IPv6
[    1.868926] NET: Registered PF_PACKET protocol family
[    1.874139] can: controller area network core
[    1.878687] NET: Registered PF_CAN protocol family
[    1.883710] Key type dns_resolver registered
[    1.888114] mpls_gso: MPLS GSO support
[    1.892201] ThumbEE CPU extension supported.
[    1.896615] Registering SWP/SWPB emulation handler
[    1.901550] omap_voltage_late_init: Voltage driver support not added
[    1.908824] registered taskstats version 1
[    1.913108] Loading compiled-in X.509 certificates
[    1.918224] zswap: loaded using pool lzo/zbud
[    1.923115] Key type ._fscrypt registered
[    1.927294] Key type .fscrypt registered
[    1.931339] Key type fscrypt-provisioning registered
[    1.939318] Key type encrypted registered
[    1.943634] ima: No TPM chip found, activating TPM-bypass!
[    1.949397] ima: Allocated hash algorithm: sha256
[    1.954333] ima: No architecture policies found
[    1.974048] ti-sysc 44d00000.target-module: XXX sysc_probe
[    1.979958] ti-sysc 44d00000.target-module: 
44d00000:4000:0:NA:NA:12152dd2
[    1.988004] remoteproc remoteproc0: wkup_m3 is available
[    1.995587] ti-sysc 44e00000.target-module: XXX sysc_probe
[    2.001499] ti-sysc 44e00000.target-module: 
44e00000:2000:0:NA:NA:03004502
[    2.009249] ti-sysc 44e07000.target-module: XXX sysc_probe
[    2.015294] ti-sysc 44e07000.target-module: 
44e07000:1000:0:10:114:50600801:gpio
[    2.024517] ti-sysc 44e09050.target-module: XXX sysc_probe
[    2.030321] ti-sysc 44e09050.target-module: 
44e09000:1000:50:54:58:50412603:uart
[    2.039014] ti-sysc 44e0b000.target-module: XXX sysc_probe
[    2.044819] ti-sysc 44e0b000.target-module: 
44e0b000:1000:0:10:90:5040000b:i2c
[    2.053206] ti-sysc 44e0d000.target-module: XXX sysc_probe
[    2.058993] ti-sysc 44e0d000.target-module: 
44e0d000:1000:0:10:NA:47300001:adc
[    2.066973] ti-sysc 44e10000.target-module: XXX sysc_probe
[    2.072739] ti-sysc 44e10000.target-module: 
44e10000:10000:0:NA:NA:4e8b0100:scm
[    2.081798] pinctrl-single 44e10800.pinmux: 142 pins, size 568
[    2.091090] ti-sysc 44e31000.target-module: XXX sysc_probe
[    2.096953] ti-sysc 44e31000.target-module: 
44e31000:1000:0:10:14:00000015:timer
[    2.105039] ti-sysc 44e35000.target-module: XXX sysc_probe
[    2.111512] ti-sysc 44e35000.target-module: 
44e35000:1000:0:10:14:502a0501:wdt
[    2.120298] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 
60 sec
[    2.128247] ti-sysc 44e3e074.target-module: XXX sysc_probe
[    2.134064] ti-sysc 44e3e074.target-module: 
44e3e000:1000:74:78:NA:4eb01106:rtc
[    2.143269] omap_rtc 44e3e000.rtc: registered as rtc0
[    2.148541] omap_rtc 44e3e000.rtc: setting system clock to 
2000-01-01T00:00:00 UTC (946684800)
[    2.160185] ti-sysc 48022050.target-module: XXX sysc_probe
[    2.166060] ti-sysc 48022050.target-module: 
48022000:1000:50:54:58:50412603:uart
[    2.174292] ti-sysc 48024050.target-module: XXX sysc_probe
[    2.180086] ti-sysc 48024050.target-module: 
48024000:1000:50:54:58:50412603:uart
[    2.188200] ti-sysc 4802a000.target-module: XXX sysc_probe
[    2.193978] ti-sysc 4802a000.target-module: 
4802a000:1000:0:10:90:5040000b:i2c
[    2.201916] ti-sysc 48030000.target-module: XXX sysc_probe
[    2.207687] ti-sysc 48030000.target-module: 
48030000:1000:0:110:114:40300a0b:mcspi
[    2.215991] ti-sysc 48038000.target-module: XXX sysc_probe
[    2.221760] ti-sysc 48038000.target-module: 
48038000:2000:0:4:NA:44307b02:mcasp
[    2.230891] ti-sysc 4803c000.target-module: XXX sysc_probe
[    2.236725] ti-sysc 4803c000.target-module: 
4803c000:2000:0:4:NA:44307b02:mcasp
[    2.244804] ti-sysc 48040000.target-module: XXX sysc_probe
[    2.250598] ti-sysc 48040000.target-module: 
48040000:1000:0:10:14:4fff1301
[    2.258119] ti-sysc 48042000.target-module: XXX sysc_probe
[    2.263886] ti-sysc 48042000.target-module: 
48042000:1000:0:10:14:4fff1301
[    2.272307] ti-sysc 48044000.target-module: XXX sysc_probe
[    2.278131] ti-sysc 48044000.target-module: 
48044000:1000:0:10:14:4fff1301
[    2.286463] ti-sysc 48046000.target-module: XXX sysc_probe
[    2.292283] ti-sysc 48046000.target-module: 
48046000:1000:0:10:14:4fff1301
[    2.300625] ti-sysc 48048000.target-module: XXX sysc_probe
[    2.306433] ti-sysc 48048000.target-module: 
48048000:1000:0:10:14:4fff1301
[    2.314772] ti-sysc 4804a000.target-module: XXX sysc_probe
[    2.320598] ti-sysc 4804a000.target-module: 
4804a000:1000:0:10:14:4fff1301
[    2.328954] ti-sysc 4804c000.target-module: XXX sysc_probe
[    2.335079] ti-sysc 4804c000.target-module: 
4804c000:1000:0:10:114:50600801:gpio
[    2.343953] OMAP GPIO hardware version 0.1
[    2.349058] ti-sysc 480602fc.target-module: XXX sysc_probe
[    2.354899] ti-sysc 480602fc.target-module: 
48060000:1000:2fc:110:114:31010000:sdio
[    2.364542] ti-sysc 48080000.target-module: XXX sysc_probe
[    2.370389] ti-sysc 48080000.target-module: 
48080000:10000:0:10:14:00000020:elm
[    2.378413] ti-sysc 480c8000.target-module: XXX sysc_probe
[    2.384187] ti-sysc 480c8000.target-module: 
480c8000:1000:0:10:NA:00000400:mailbox
[    2.392727] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    2.399576] ti-sysc 480ca000.target-module: XXX sysc_probe
[    2.405387] ti-sysc 480ca000.target-module: 
480ca000:1000:0:10:14:50020000
[    2.414265] ti-sysc 4819c000.target-module: XXX sysc_probe
[    2.420106] ti-sysc 4819c000.target-module: 
4819c000:1000:0:10:90:5040000b:i2c
[    2.429434] at24 2-0054: supply vcc not found, using dummy regulator
[    2.467691] at24 2-0055: supply vcc not found, using dummy regulator
[    2.502628] at24 2-0056: supply vcc not found, using dummy regulator
[    2.538589] at24 2-0057: supply vcc not found, using dummy regulator
[    2.574332] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[    2.580807] ti-sysc 481a0000.target-module: XXX sysc_probe
[    2.586667] ti-sysc 481a0000.target-module: 
481a0000:1000:0:110:114:40300a0b:mcspi
[    2.594987] ti-sysc 481a6050.target-module: XXX sysc_probe
[    2.600790] ti-sysc 481a6050.target-module: 
481a6000:1000:50:54:58:50412603:uart
[    2.608871] ti-sysc 481a8050.target-module: XXX sysc_probe
[    2.614638] ti-sysc 481a8050.target-module: 
481a8000:1000:50:54:58:50412603:uart
[    2.622726] ti-sysc 481aa050.target-module: XXX sysc_probe
[    2.628493] ti-sysc 481aa050.target-module: 
481aa000:1000:50:54:58:50412603:uart
[    2.636567] ti-sysc 481ac000.target-module: XXX sysc_probe
[    2.642641] ti-sysc 481ac000.target-module: 
481ac000:1000:0:10:114:50600801:gpio
[    2.651921] ti-sysc 481ae000.target-module: XXX sysc_probe
[    2.658078] ti-sysc 481ae000.target-module: 
481ae000:1000:0:10:114:50600801:gpio
[    2.667193] ti-sysc 481cc020.target-module: XXX sysc_probe
[    2.673023] ti-sysc 481cc020.target-module: 
481cc000:2000:20:NA:NA:a3170504:dcan
[    2.681071] ti-sysc 481d0020.target-module: XXX sysc_probe
[    2.686855] ti-sysc 481d0020.target-module: 
481d0000:2000:20:NA:NA:a3170504:dcan
[    2.695078] ti-sysc 481d82fc.target-module: XXX sysc_probe
[    2.700860] ti-sysc 481d82fc.target-module: 
481d8000:1000:2fc:110:114:31010000:sdio
[    2.710849] ti-sysc 
48000000.interconnect:segment@...000:target-module@0: XXX sysc_probe
[    2.719360] ti-sysc 
48000000.interconnect:segment@...000:target-module@0: 
48200000:10000:NA:NA:NA:NA
[    2.730103] ti-sysc 48300000.target-module: XXX sysc_probe
[    2.735935] ti-sysc 48300000.target-module: 
48300000:1000:0:4:NA:47400001:epwmss
[    2.744045] ti-sysc 48302000.target-module: XXX sysc_probe
[    2.749823] ti-sysc 48302000.target-module: 
48302000:1000:0:4:NA:47400001:epwmss
[    2.757881] ti-sysc 48304000.target-module: XXX sysc_probe
[    2.763651] ti-sysc 48304000.target-module: 
48304000:1000:0:4:NA:47400001:epwmss
[    2.771715] ti-sysc 4830e000.target-module: XXX sysc_probe
[    2.777477] ti-sysc 4830e000.target-module: 
4830e000:1000:0:54:NA:4f201000:lcdc
[    2.786181] ti-sysc 48311fe0.target-module: XXX sysc_probe
[    2.791994] ti-sysc 48311fe0.target-module: 
48310000:2000:1fe0:1fe4:NA:00000020:rng
[    2.800820] omap_rng 48310000.rng: Random Number Generator ver. 20
[    2.807315] random: crng init done
[    2.814207] ti-sysc 4a101200.target-module: XXX sysc_probe
[    2.820080] ti-sysc 4a101200.target-module: 
4a100000:8000:1200:1208:1204:4edb0100:cpgmac
[    2.830347] ti-sysc 4a326000.target-module: XXX sysc_probe
[    2.836198] 8<--- cut here ---
[    2.839339] Unhandled fault: external abort on non-linefetch (0x1008) 
at 0xe0266000
[    2.847215] pgd = 342d2420
[    2.850000] [e0266000] *pgd=81ec1811, *pte=4a326653, *ppte=4a326453
[    2.856467] Internal error: : 1008 [#1] THUMB2
[    2.861036] Modules linked in:
[    2.864176] CPU: 0 PID: 65 Comm: kworker/u2:2 Not tainted 
5.15.0-rc1-00002-g5285574596c0 #552
[    2.872946] Hardware name: Generic AM33XX (Flattened Device Tree)
[    2.879212] Workqueue: events_unbound deferred_probe_work_func
[    2.885231] PC is at sysc_probe+0xb30/0xf6c
[    2.889545] LR is at omap_reset_deassert+0x8d/0x164
[    2.894569] pc : [<c05afb40>]    lr : [<c0605e2d>]    psr: 40000033
[    2.901009] sp : c1bcb798  ip : 05355555  fp : c0a56460
[    2.906379] r10: 00000000  r9 : 00000001  r8 : 00000000
[    2.911746] r7 : c110be4c  r6 : c1f5ae10  r5 : c1f52240  r4 : c1105288
[    2.918457] r3 : e0266000  r2 : 00000001  r1 : 00026000  r0 : 00000000
[    2.925171] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA Thumb 
Segment none
[    2.932687] Control: 50c5387d  Table: 80004019  DAC: 00000051
[    2.938590] Register r0 information: NULL pointer
[    2.943430] Register r1 information: non-paged memory
[    2.948622] Register r2 information: non-paged memory
[    2.953813] Register r3 information: 0-page vmalloc region starting 
at 0xe0240000 allocated at __devm_ioremap+0x6f/0x78
[    2.964915] Register r4 information: non-slab/vmalloc memory
[    2.970734] Register r5 information: slab kmalloc-256 start c1f52200 
pointer offset 64 size 256
[    2.979701] Register r6 information: slab kmalloc-512 start c1f5ae00 
pointer offset 16 size 512
[    2.988661] Register r7 information: non-slab/vmalloc memory
[    2.994481] Register r8 information: NULL pointer
[    2.999316] Register r9 information: non-paged memory
[    3.004508] Register r10 information: NULL pointer
[    3.009433] Register r11 information: non-slab/vmalloc memory
[    3.015343] Register r12 information: non-paged memory
[    3.020625] Process kworker/u2:2 (pid: 65, stack limit = 0xa1c5a543)
[    3.027159] Stack: (0xc1bcb798 to 0xc1bcc000)
[    3.031637] b780: 
    ???????? ????????
[    3.040045] b7a0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.048451] b7c0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.056860] b7e0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.065267] b800: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.073674] b820: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.082082] b840: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.090489] b860: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.098898] b880: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.107303] b8a0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.115711] b8c0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.124119] b8e0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.132527] b900: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.140935] b920: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.149342] b940: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.157749] b960: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.166156] b980: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.174566] b9a0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.182974] b9c0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.191383] b9e0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.199790] ba00: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.208195] ba20: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.216605] ba40: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.225011] ba60: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.233417] ba80: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.241827] baa0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.250233] bac0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.258644] bae0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.267051] bb00: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.275459] bb20: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.283866] bb40: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.292275] bb60: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.300680] bb80: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.309089] bba0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.317498] bbc0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.325908] bbe0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.334319] bc00: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.342728] bc20: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.351135] bc40: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.359542] bc60: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.367951] bc80: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.376358] bca0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.384764] bcc0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.393173] bce0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.401581] bd00: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.409987] bd20: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.418395] bd40: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.426804] bd60: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.435213] bd80: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.443620] bda0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.452029] bdc0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.460437] bde0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.468844] be00: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.477251] be20: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.485659] be40: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.494066] be60: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.502477] be80: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.510884] bea0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.519291] bec0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.527698] bee0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.536107] bf00: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.544514] bf20: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.552923] bf40: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.561331] bf60: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.569739] bf80: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.578146] bfa0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.586553] bfc0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.594958] bfe0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    3.603378] [<c05afb40>] (sysc_probe) from [<c0695135>] 
(platform_probe+0x5d/0x88)
[    3.611178] [<c0695135>] (platform_probe) from [<c069334b>] 
(really_probe+0x12b/0x2c8)
[    3.619334] [<c069334b>] (really_probe) from [<c069356f>] 
(__driver_probe_device+0x87/0x17c)
[    3.628019] [<c069356f>] (__driver_probe_device) from [<c0693699>] 
(driver_probe_device+0x35/0xa4)
[    3.637244] [<c0693699>] (driver_probe_device) from [<c0693951>] 
(__device_attach_driver+0x61/0xa8)
[    3.646560] [<c0693951>] (__device_attach_driver) from [<c0691c7b>] 
(bus_for_each_drv+0x47/0x70)
[    3.655604] [<c0691c7b>] (bus_for_each_drv) from [<c06931b3>] 
(__device_attach+0x8f/0xf0)
[    3.664023] [<c06931b3>] (__device_attach) from [<c06926f3>] 
(bus_probe_device+0x5b/0x60)
[    3.672443] [<c06926f3>] (bus_probe_device) from [<c0690e19>] 
(device_add+0x389/0x640)
[    3.680597] [<c0690e19>] (device_add) from [<c08064b5>] 
(of_platform_device_create_pdata+0x71/0xa0)
[    3.689919] [<c08064b5>] (of_platform_device_create_pdata) from 
[<c08065fd>] (of_platform_bus_create+0x10d/0x244)
[    3.700484] [<c08065fd>] (of_platform_bus_create) from [<c0806879>] 
(of_platform_populate+0x5d/0xd8)
[    3.709886] [<c0806879>] (of_platform_populate) from [<c05add17>] 
(simple_pm_bus_probe+0x2b/0x50)
[    3.719020] [<c05add17>] (simple_pm_bus_probe) from [<c0695135>] 
(platform_probe+0x5d/0x88)
[    3.727617] [<c0695135>] (platform_probe) from [<c069334b>] 
(really_probe+0x12b/0x2c8)
[    3.735766] [<c069334b>] (really_probe) from [<c069356f>] 
(__driver_probe_device+0x87/0x17c)
[    3.744452] [<c069356f>] (__driver_probe_device) from [<c0693699>] 
(driver_probe_device+0x35/0xa4)
[    3.753677] [<c0693699>] (driver_probe_device) from [<c0693951>] 
(__device_attach_driver+0x61/0xa8)
[    3.762991] [<c0693951>] (__device_attach_driver) from [<c0691c7b>] 
(bus_for_each_drv+0x47/0x70)
[    3.772037] [<c0691c7b>] (bus_for_each_drv) from [<c06931b3>] 
(__device_attach+0x8f/0xf0)
[    3.780454] [<c06931b3>] (__device_attach) from [<c06926f3>] 
(bus_probe_device+0x5b/0x60)
[    3.788873] [<c06926f3>] (bus_probe_device) from [<c0690e19>] 
(device_add+0x389/0x640)
[    3.797023] [<c0690e19>] (device_add) from [<c08064b5>] 
(of_platform_device_create_pdata+0x71/0xa0)
[    3.806336] [<c08064b5>] (of_platform_device_create_pdata) from 
[<c08065fd>] (of_platform_bus_create+0x10d/0x244)
[    3.816899] [<c08065fd>] (of_platform_bus_create) from [<c0806879>] 
(of_platform_populate+0x5d/0xd8)
[    3.826302] [<c0806879>] (of_platform_populate) from [<c05add17>] 
(simple_pm_bus_probe+0x2b/0x50)
[    3.835434] [<c05add17>] (simple_pm_bus_probe) from [<c0695135>] 
(platform_probe+0x5d/0x88)
[    3.844030] [<c0695135>] (platform_probe) from [<c069334b>] 
(really_probe+0x12b/0x2c8)
[    3.852182] [<c069334b>] (really_probe) from [<c069356f>] 
(__driver_probe_device+0x87/0x17c)
[    3.860871] [<c069356f>] (__driver_probe_device) from [<c0693699>] 
(driver_probe_device+0x35/0xa4)
[    3.870095] [<c0693699>] (driver_probe_device) from [<c0693951>] 
(__device_attach_driver+0x61/0xa8)
[    3.879409] [<c0693951>] (__device_attach_driver) from [<c0691c7b>] 
(bus_for_each_drv+0x47/0x70)
[    3.888455] [<c0691c7b>] (bus_for_each_drv) from [<c06931b3>] 
(__device_attach+0x8f/0xf0)
[    3.896874] [<c06931b3>] (__device_attach) from [<c06926f3>] 
(bus_probe_device+0x5b/0x60)
[    3.905295] [<c06926f3>] (bus_probe_device) from [<c0690e19>] 
(device_add+0x389/0x640)
[    3.913443] [<c0690e19>] (device_add) from [<c08064b5>] 
(of_platform_device_create_pdata+0x71/0xa0)
[    3.922756] [<c08064b5>] (of_platform_device_create_pdata) from 
[<c08065fd>] (of_platform_bus_create+0x10d/0x244)
[    3.933320] [<c08065fd>] (of_platform_bus_create) from [<c0806879>] 
(of_platform_populate+0x5d/0xd8)
[    3.942722] [<c0806879>] (of_platform_populate) from [<c05add17>] 
(simple_pm_bus_probe+0x2b/0x50)
[    3.951857] [<c05add17>] (simple_pm_bus_probe) from [<c0695135>] 
(platform_probe+0x5d/0x88)
[    3.960452] [<c0695135>] (platform_probe) from [<c069334b>] 
(really_probe+0x12b/0x2c8)
[    3.968600] [<c069334b>] (really_probe) from [<c069356f>] 
(__driver_probe_device+0x87/0x17c)
[    3.977286] [<c069356f>] (__driver_probe_device) from [<c0693699>] 
(driver_probe_device+0x35/0xa4)
[    3.986512] [<c0693699>] (driver_probe_device) from [<c0693951>] 
(__device_attach_driver+0x61/0xa8)
[    3.995827] [<c0693951>] (__device_attach_driver) from [<c0691c7b>] 
(bus_for_each_drv+0x47/0x70)
[    4.004871] [<c0691c7b>] (bus_for_each_drv) from [<c06931b3>] 
(__device_attach+0x8f/0xf0)
[    4.013290] [<c06931b3>] (__device_attach) from [<c06926f3>] 
(bus_probe_device+0x5b/0x60)
[    4.021710] [<c06926f3>] (bus_probe_device) from [<c0692a9b>] 
(deferred_probe_work_func+0x77/0xa4)
[    4.030931] [<c0692a9b>] (deferred_probe_work_func) from [<c01343d5>] 
(process_one_work+0x109/0x310)
[    4.040336] [<c01343d5>] (process_one_work) from [<c0134921>] 
(worker_thread+0xe5/0x3a8)
[    4.048663] [<c0134921>] (worker_thread) from [<c01397a7>] 
(kthread+0xe3/0x11c)
[    4.056194] [<c01397a7>] (kthread) from [<c0100139>] 
(ret_from_fork+0x11/0x38)
[    4.063632] Exception stack(0xc1bcbfb0 to 0xc1bcbff8)
[    4.068824] bfa0:                                     ???????? 
???????? ???????? ????????
[    4.077233] bfc0: ???????? ???????? ???????? ???????? ???????? 
???????? ???????? ????????
[    4.085640] bfe0: ???????? ???????? ???????? ???????? ???????? ????????
[    4.092446] Code: f100 81cc 696b 440b (6818) 46cc
[    4.097375] ---[ end trace eba2b1d5f478df09 ]---

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