How to bring up-to-date a branch on this repo?

[giuliomoro]

Hi there,
I am interested in reviving the ti-linux-xenomai-4.4.y branch (and possible other more recent Xenomai branches later on), bringing it up to date with the latest ti-linux-4.4.y (or whatever a suitable upstream branch is)?. Could you please explain what is the suggested workflow to do so? I looked at the scripts in repo_maintenance, but I could not make sense of those.
Thanks

[RobertCNelson]

@giuliomoro we need to rewrite a few things, as Xenomai changed there repo's.. Our base kernel also has to be "newer" then Xenomai to make patching cleaner..

Looking at: https://gitlab.denx.de/Xenomai

looks like ipipe is good to 4.9.x

https://gitlab.denx.de/Xenomai/ipipe

and ipipe-arm is for 4.14.x+

https://gitlab.denx.de/Xenomai/ipipe-arm

That get's patched here:

https://github.com/RobertCNelson/ti-linux-kernel-dev/blob/ti-linux-xenomai-4.4.y/patch.sh#L282-L377

The main xenomai patch is from here:

https://gitlab.denx.de/Xenomai/xenomai/tree/stable/v3.0.x

So looking back at the kernels:

4.4.x:
We are at: 4.4.155: Xenomai: 4.4.176 (We are too old, so not a clean pull...)

4.9.x:
We are at: 4.9.147: Xenomai: 4.9.146 (Yay, we are not ancient, i can pull Xenomai in..)

4.14.x:
We are at: 4.14.94: Xenomai: 4.14.85 (yay, we can pull Xenomai in..)

let me look at 4.9.x & 4.14.x tomorrow..

Regards,

[giuliomoro]

thanks, would you be able to detail the steps for bringing the repo up to date, as you go along, so that I can possibly try to do it myself in the future, with no need to bother you?

4.4.x:
We are at: 4.4.155: Xenomai: 4.4.176 (We are too old, so not a clean pull...)

There is a 4.4.138 earlier in the commit log, if that can be of help:
https://gitlab.denx.de/Xenomai/ipipe/commit/ea7a165796165ea6e334f2b6d19a77f1853871b1

[RobertCNelson]

v4.4.x is a mess..

But got v4.9.x working:

debian@beaglebone:~$ dmesg | grep Xenomai
[    0.915640] [Xenomai] scheduling class idle registered.
[    0.915652] [Xenomai] scheduling class rt registered.
[    0.915855] I-pipe: head domain Xenomai registered.
[    0.921395] [Xenomai] Cobalt v3.0.8 
debian@beaglebone:~$ uname -r
4.9.147-ti-xenomai-r117

Pushed out and now building...

[RobertCNelson]

and v4.14.x-ti works too:

dmesgdebian@beaglebone:~$ dmesg | grep Xenomai
[    0.809238] [Xenomai] scheduling class idle registered.
[    0.809263] [Xenomai] scheduling class rt registered.
[    0.809450] I-pipe: head domain Xenomai registered.
[    0.814529] [Xenomai] Cobalt v3.0.8 
debian@beaglebone:~$ uname -r
4.14.94-ti-xenomai-r95

[giuliomoro]

thanks, building 4.14 now. I am wondering why you enabled RT? Also, in the next commit it seems like you (at least partially?) disabled it again: 4228879#diff-95d84854652267a9fbccfca9b0f08f93R354

[RobertCNelson]

@giuliomoro , brain fart in the previous commit.. I had meant to fork the rt branch, but i forked the non-rt..

Then once i disabled the RT patch and enabled Xenomai, a bunch of RT-only symbols where removed like normal..

Regards,

[giuliomoro]

It boots, but I get an error during boot:

root@bela:~# dmesg
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.14.94-ti-xenomai-r95 (root@giulio-VirtualBox) (gcc version 7.4.1 20181213 [linaro-7.4-2019.02 revision 56ec6f6b99cc167ff0c2f8e1a2eed33b1edc85d4] (Linaro GCC 7.4-2019.02)) #1 PREEMPT Wed Mar 6 12:43:41 GMT 2019
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: TI AM335x PocketBeagle
[    0.000000] Memory policy: Data cache writeback
[    0.000000] On node 0 totalpages: 131072
[    0.000000] free_area_init_node: node 0, pgdat c13d6888, node_mem_map dfb79000
[    0.000000]   Normal zone: 1152 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 131072 pages, LIFO batch:31
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.1 (sgx neon)
[    0.000000] random: get_random_bytes called from start_kernel+0xac/0x3c8 with crng_init=0
[    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: 129920
[    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 quiet
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] Memory: 498504K/524288K available (12288K kernel code, 974K rwdata, 3928K rodata, 1024K init, 856K bss, 25784K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xe0800000 - 0xff800000   ( 496 MB)
                   lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
                   pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
                   modules : 0xbf000000 - 0xbfe00000   (  14 MB)
                     .text : 0xc0008000 - 0xc0d00000   (13280 kB)
                     .init : 0xc1200000 - 0xc1300000   (1024 kB)
                     .data : 0xc1300000 - 0xc13f3964   ( 975 kB)
                      .bss : 0xc13f5000 - 0xc14cb29c   ( 857 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] Preemptible hierarchical RCU implementation.
[    0.000000] 	Tasks RCU enabled.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[    0.000021] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000041] I-pipe, 24.000 MHz clocksource, wrap in 178956 ms
[    0.000060] clocksource: ipipe_tsc: mask: 0xffffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000082] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000090] OMAP clocksource: timer1 at 24000000 Hz
[    0.002792] timer_probe: no matching timers found
[    0.003158] Interrupt pipeline (release #6)
[    0.003499] Console: colour dummy device 80x30
[    0.003552] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
[    0.020742] pid_max: default: 32768 minimum: 301
[    0.020948] Security Framework initialized
[    0.020963] Yama: becoming mindful.
[    0.021007] AppArmor: AppArmor disabled by boot time parameter
[    0.021077] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.021091] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.022089] CPU: Testing write buffer coherency: ok
[    0.022160] CPU0: Spectre v2: using BPIALL workaround
[    0.023137] Setting up static identity map for 0x80100000 - 0x80100060
[    0.023342] Hierarchical SRCU implementation.
[    0.027920] devtmpfs: initialized
[    0.060797] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[    0.061284] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.061306] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.061658] xor: measuring software checksum speed
[    0.100759]    arm4regs  :  1147.000 MB/sec
[    0.140707]    8regs     :   912.000 MB/sec
[    0.180705]    32regs    :   998.000 MB/sec
[    0.220705]    neon      :  1374.000 MB/sec
[    0.220713] xor: using function: neon (1374.000 MB/sec)
[    0.220733] pinctrl core: initialized pinctrl subsystem
[    0.223222] NET: Registered protocol family 16
[    0.225021] DMA: preallocated 1024 KiB pool for atomic coherent allocations
[    0.308280] omap_hwmod: debugss: _wait_target_disable failed
[    0.369392] OMAP GPIO hardware version 0.1
[    0.395159] No ATAGs?
[    0.395182] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.476834] raid6: neonx8   gen()   914 MB/s
[    0.544813] raid6: neonx8   xor()   690 MB/s
[    0.612712] raid6: neonx4   gen()  1877 MB/s
[    0.680714] raid6: neonx4   xor()  1437 MB/s
[    0.748704] raid6: neonx2   gen()  1887 MB/s
[    0.816719] raid6: neonx2   xor()  1506 MB/s
[    0.884705] raid6: neonx1   gen()  1427 MB/s
[    0.952710] raid6: neonx1   xor()  1118 MB/s
[    1.020703] random: fast init done
[    1.020846] raid6: int32x8  gen()   318 MB/s
[    1.088763] raid6: int32x8  xor()   202 MB/s
[    1.156882] raid6: int32x4  gen()   329 MB/s
[    1.224794] raid6: int32x4  xor()   245 MB/s
[    1.292784] raid6: int32x2  gen()   328 MB/s
[    1.360720] raid6: int32x2  xor()   264 MB/s
[    1.428803] raid6: int32x1  gen()   265 MB/s
[    1.496706] raid6: int32x1  xor()   215 MB/s
[    1.496715] raid6: using algorithm neonx2 gen() 1887 MB/s
[    1.496723] raid6: .... xor() 1506 MB/s, rmw enabled
[    1.496731] raid6: using neon recovery algorithm
[    1.506437] edma 49000000.edma: TI EDMA DMA engine driver
[    1.518668] SCSI subsystem initialized
[    1.519106] libata version 3.00 loaded.
[    1.519435] usbcore: registered new interface driver usbfs
[    1.519503] usbcore: registered new interface driver hub
[    1.519630] usbcore: registered new device driver usb
[    1.520645] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe
[    1.521698] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 400 kHz
[    1.522482] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 400 kHz
[    1.522931] media: Linux media interface: v0.10
[    1.522991] Linux video capture interface: v2.00
[    1.523164] pps_core: LinuxPPS API ver. 1 registered
[    1.523172] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.523195] PTP clock support registered
[    1.524210] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    1.525823] NetLabel: Initializing
[    1.525836] NetLabel:  domain hash size = 128
[    1.525842] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    1.525961] NetLabel:  unlabeled traffic allowed by default
[    1.526656] clocksource: Switched to clocksource ipipe_tsc
[    1.697653] VFS: Disk quotas dquot_6.6.0
[    1.697745] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    1.711931] NET: Registered protocol family 2
[    1.712843] TCP established hash table entries: 4096 (order: 2, 16384 bytes)
[    1.712888] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[    1.712927] TCP: Hash tables configured (established 4096 bind 4096)
[    1.713047] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    1.713066] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    1.713297] NET: Registered protocol family 1
[    1.714043] RPC: Registered named UNIX socket transport module.
[    1.714054] RPC: Registered udp transport module.
[    1.714061] RPC: Registered tcp transport module.
[    1.714067] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.715383] hw perfevents: no interrupt-affinity property for /pmu, guessing.
[    1.715511] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[    1.717702] audit: initializing netlink subsys (disabled)
[    1.718971] [Xenomai] scheduling class idle registered.
[    1.718982] [Xenomai] scheduling class rt registered.
[    1.719128] I-pipe: head domain Xenomai registered.
[    1.720625] audit: type=2000 audit(1.716:1): state=initialized audit_enabled=0 res=1
[    1.726968] [Xenomai] Cobalt v3.0.8 [DEBUG]
[    1.727144] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    1.734532] zbud: loaded
[    1.737860] NFS: Registering the id_resolver key type
[    1.737919] Key type id_resolver registered
[    1.737926] Key type id_legacy registered
[    1.737947] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    1.738319] fuse init (API version 7.26)
[    1.739212] SGI XFS with ACLs, security attributes, realtime, no debug enabled
[    1.749815] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[    1.750093] io scheduler noop registered
[    1.750103] io scheduler deadline registered
[    1.750507] io scheduler cfq registered (default)
[    1.750518] io scheduler mq-deadline registered
[    1.750527] io scheduler kyber registered
[    1.753197] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568
[    1.763562] gpio-of-helper ocp:cape-universal: ready
[    1.770224] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[    1.772510] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[    1.775948] console [ttyS0] disabled
[    1.776056] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
[    1.787865] console [ttyS0] enabled
[    1.788947] 48022000.serial: ttyS1 at MMIO 0x48022000 (irq = 31, base_baud = 3000000) is a 8250
[    1.789885] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 32, base_baud = 3000000) is a 8250
[    1.790969] 481a8000.serial: ttyS4 at MMIO 0x481a8000 (irq = 33, base_baud = 3000000) is a 8250
[    1.840778] libphy: Fixed MDIO Bus: probed
[    1.844844] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.844890] ehci-platform: EHCI generic platform driver
[    1.845323] ehci-omap: OMAP-EHCI Host Controller driver
[    1.846470] usbcore: registered new interface driver usb-storage
[    1.849861] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply vcc not found, using dummy regulator
[    1.854446] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
[    1.854489] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 1
[    1.854995] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    1.855008] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.855018] usb usb1: Product: MUSB HDRC host driver
[    1.855027] usb usb1: Manufacturer: Linux 4.14.94-ti-xenomai-r95 musb-hcd
[    1.855035] usb usb1: SerialNumber: musb-hdrc.0
[    1.856073] hub 1-0:1.0: USB hub found
[    1.856160] hub 1-0:1.0: 1 port detected
[    1.859203] am335x-phy-driver 47401b00.usb-phy: 47401b00.usb-phy supply vcc not found, using dummy regulator
[    1.863672] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[    1.863718] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 2
[    1.864072] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[    1.864083] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    1.864093] usb usb2: Product: MUSB HDRC host driver
[    1.864101] usb usb2: Manufacturer: Linux 4.14.94-ti-xenomai-r95 musb-hcd
[    1.864110] usb usb2: SerialNumber: musb-hdrc.1
[    1.865112] hub 2-0:1.0: USB hub found
[    1.865192] hub 2-0:1.0: 1 port detected
[    1.874513] mousedev: PS/2 mouse device common for all mice
[    1.877589] omap_rtc 44e3e000.rtc: already running
[    1.878360] omap_rtc 44e3e000.rtc: registered as rtc0
[    1.880105] i2c /dev entries driver
[    1.882629] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[    1.885159] omap_hsmmc 48060000.mmc: Got CD GPIO
[    1.928842] hidraw: raw HID events driver (C) Jiri Kosina
[    1.932076] usbcore: registered new interface driver usbhid
[    1.932087] usbhid: USB HID core driver
[    1.932668] ashmem: initialized
[    1.933335] remoteproc remoteproc0: wkup_m3 is available
[    1.944647] NET: Registered protocol family 10
[    1.946000] Segment Routing with IPv6
[    1.946082] mip6: Mobile IPv6
[    1.946100] NET: Registered protocol family 17
[    1.946217] Key type dns_resolver registered
[    1.946225] mpls_gso: MPLS GSO support
[    1.946558] omap_voltage_late_init: Voltage driver support not added
[    1.953657] PM: Cannot get wkup_m3_ipc handle
[    1.958307] ThumbEE CPU extension supported.
[    1.959804] registered taskstats version 1
[    1.959930] zswap: loaded using pool lzo/zbud
[    1.962498] Btrfs loaded, crc32c=crc32c-generic
[    1.964395] Key type encrypted registered
[    1.973437] mmc0: host does not support reading read-only switch, assuming write-enable
[    1.975515] mmc0: new high speed SDHC card at address 1234
[    1.978097] mmcblk0: mmc0:1234 SA16G 14.4 GiB
[    1.980050]  mmcblk0: p1 p2
[    2.010215] ------------[ cut here ]------------
[    2.010255] WARNING: CPU: 0 PID: 64 at kernel/irq/chip.c:57 irq_set_chip+0xcc/0xdc
[    2.010262] irqchip tps65217 is not pipeline-safe!
[    2.010270] Modules linked in:
[    2.010292] CPU: 0 PID: 64 Comm: kworker/0:2 Not tainted 4.14.94-ti-xenomai-r95 #1
[    2.010298] Hardware name: Generic AM33XX (Flattened Device Tree)
[    2.010305] I-pipe domain: Linux
[    2.010332] Workqueue: events deferred_probe_work_func
[    2.010377] [<c0110924>] (unwind_backtrace) from [<c010dedc>] (show_stack+0x20/0x24)
[    2.010395] [<c010dedc>] (show_stack) from [<c0cd71c8>] (dump_stack+0x24/0x28)
[    2.010424] [<c0cd71c8>] (dump_stack) from [<c013a418>] (__warn+0xf4/0x10c)
[    2.010440] [<c013a418>] (__warn) from [<c013a488>] (warn_slowpath_fmt+0x58/0x74)
[    2.010456] [<c013a488>] (warn_slowpath_fmt) from [<c01963ec>] (irq_set_chip+0xcc/0xdc)
[    2.010473] [<c01963ec>] (irq_set_chip) from [<c0197708>] (irq_set_chip_and_handler_name+0x24/0x3c)
[    2.010497] [<c0197708>] (irq_set_chip_and_handler_name) from [<c0948970>] (tps65217_irq_map+0x40/0x78)
[    2.010515] [<c0948970>] (tps65217_irq_map) from [<c019a214>] (irq_domain_associate+0x84/0x1f8)
[    2.010529] [<c019a214>] (irq_domain_associate) from [<c019abf4>] (irq_create_mapping+0x144/0x1fc)
[    2.010548] [<c019abf4>] (irq_create_mapping) from [<c094e720>] (mfd_add_device+0x204/0x348)
[    2.010563] [<c094e720>] (mfd_add_device) from [<c094e968>] (mfd_add_devices+0xa0/0x104)
[    2.010577] [<c094e968>] (mfd_add_devices) from [<c094ea60>] (devm_mfd_add_devices+0x78/0xb8)
[    2.010592] [<c094ea60>] (devm_mfd_add_devices) from [<c0948c9c>] (tps65217_probe+0x110/0x328)
[    2.010608] [<c0948c9c>] (tps65217_probe) from [<c0a7ee7c>] (i2c_device_probe+0x290/0x2dc)
[    2.010625] [<c0a7ee7c>] (i2c_device_probe) from [<c0919a14>] (driver_probe_device+0x298/0x478)
[    2.010668] [<c0919a14>] (driver_probe_device) from [<c0919dcc>] (__device_attach_driver+0xac/0x14c)
[    2.010683] [<c0919dcc>] (__device_attach_driver) from [<c0917544>] (bus_for_each_drv+0x68/0xc8)
[    2.010698] [<c0917544>] (bus_for_each_drv) from [<c09195c8>] (__device_attach+0xe0/0x174)
[    2.010713] [<c09195c8>] (__device_attach) from [<c0919ec8>] (device_initial_probe+0x1c/0x20)
[    2.010727] [<c0919ec8>] (device_initial_probe) from [<c091880c>] (bus_probe_device+0x94/0x9c)
[    2.010742] [<c091880c>] (bus_probe_device) from [<c0916390>] (device_add+0x418/0x618)
[    2.010756] [<c0916390>] (device_add) from [<c09165b4>] (device_register+0x24/0x28)
[    2.010770] [<c09165b4>] (device_register) from [<c0a7fe50>] (i2c_new_device+0x154/0x308)
[    2.010787] [<c0a7fe50>] (i2c_new_device) from [<c0a82dc8>] (of_i2c_register_device+0x148/0x1fc)
[    2.010800] [<c0a82dc8>] (of_i2c_register_device) from [<c0a831f4>] (of_i2c_register_devices+0x98/0x118)
[    2.010814] [<c0a831f4>] (of_i2c_register_devices) from [<c0a80514>] (i2c_register_adapter+0x184/0x404)
[    2.010828] [<c0a80514>] (i2c_register_adapter) from [<c0a8081c>] (__i2c_add_numbered_adapter+0x88/0x138)
[    2.010840] [<c0a8081c>] (__i2c_add_numbered_adapter) from [<c0a809b4>] (i2c_add_adapter+0xe8/0x154)
[    2.010853] [<c0a809b4>] (i2c_add_adapter) from [<c0a80a4c>] (i2c_add_numbered_adapter+0x2c/0x30)
[    2.010869] [<c0a80a4c>] (i2c_add_numbered_adapter) from [<c0a86c58>] (omap_i2c_probe+0x524/0x718)
[    2.010885] [<c0a86c58>] (omap_i2c_probe) from [<c091bf9c>] (platform_drv_probe+0x60/0xbc)
[    2.010900] [<c091bf9c>] (platform_drv_probe) from [<c0919a14>] (driver_probe_device+0x298/0x478)
[    2.010915] [<c0919a14>] (driver_probe_device) from [<c0919dcc>] (__device_attach_driver+0xac/0x14c)
[    2.010928] [<c0919dcc>] (__device_attach_driver) from [<c0917544>] (bus_for_each_drv+0x68/0xc8)
[    2.010942] [<c0917544>] (bus_for_each_drv) from [<c09195c8>] (__device_attach+0xe0/0x174)
[    2.010956] [<c09195c8>] (__device_attach) from [<c0919ec8>] (device_initial_probe+0x1c/0x20)
[    2.010970] [<c0919ec8>] (device_initial_probe) from [<c091880c>] (bus_probe_device+0x94/0x9c)
[    2.010984] [<c091880c>] (bus_probe_device) from [<c0918d28>] (deferred_probe_work_func+0x74/0x19c)
[    2.011008] [<c0918d28>] (deferred_probe_work_func) from [<c0156b38>] (process_one_work+0x178/0x4e4)
[    2.011025] [<c0156b38>] (process_one_work) from [<c0157110>] (worker_thread+0x26c/0x5ec)
[    2.011042] [<c0157110>] (worker_thread) from [<c015d494>] (kthread+0x168/0x170)
[    2.011064] [<c015d494>] (kthread) from [<c010952c>] (ret_from_fork+0x18/0x24)
[    2.011073] ---[ end trace 7699ea00e776f627 ]---
[    2.014786] input: tps65217_pwr_but as /devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/tps65217-pwrbutton/input/input0
[    2.015419] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[    2.015978] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 bytes/write
[    2.016061] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    2.017405] PM: Cannot get wkup_m3_ipc handle
[    2.021943] remoteproc remoteproc0: powering up wkup_m3
[    2.021965] remoteproc remoteproc0: Booting fw image am335x-pm-firmware.elf, size 217168
[    2.022222] remoteproc remoteproc0: remote processor wkup_m3 is now up
[    2.022250] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 0x193
[    2.023801] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 00:08:00 UTC (946685280)
[    2.023819] of_cfs_init
[    2.023975] of_cfs_init: OK
[    2.041774] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[    2.041887] VFS: Mounted root (ext4 filesystem) readonly on device 179:2.
[    2.043134] devtmpfs: mounted
[    2.044604] Freeing unused kernel memory: 1024K
[    2.270820] usb 2-1: new high-speed USB device number 2 using musb-hdrc
[    2.436539] usb 2-1: New USB device found, idVendor=148f, idProduct=5370
[    2.436558] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[    2.436567] usb 2-1: Product: 802.11 n WLAN
[    2.436576] usb 2-1: Manufacturer: Ralink
[    2.436585] usb 2-1: SerialNumber: 1.0
[    2.441281] PM: bootloader does not support rtc-only!
[    2.459994] systemd[1]: System time before build time, advancing clock.
[    2.557621] ip_tables: (C) 2000-2006 Netfilter Core Team
[    2.601892] random: systemd: uninitialized urandom read (16 bytes read)
[    2.605555] random: systemd: uninitialized urandom read (16 bytes read)
[    2.618450] systemd[1]: systemd 232 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN)
[    2.619503] systemd[1]: Detected architecture arm.
[    2.621605] systemd[1]: Set hostname to <bela>.
[    2.834116] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read)
[    3.299040] systemd[1]: Listening on udev Kernel Socket.
[    3.301400] systemd[1]: Created slice User and Session Slice.
[    3.301650] systemd[1]: Reached target Swap.
[    3.301846] systemd[1]: Reached target Remote File Systems.
[    3.303934] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
[    3.304687] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[    3.306114] systemd[1]: Created slice System Slice.
[    4.401409] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
[    4.735639] systemd-journald[94]: Received request to flush runtime journal from PID 1
[    7.556775] CAN device driver interface
[    7.624239] c_can_platform 481cc000.can: c_can_platform device registered (regs=fa1cc000, irq=39)
[    7.641829] c_can_platform 481d0000.can: c_can_platform device registered (regs=fa1d0000, irq=40)
[    7.724724] omap_rng 48310000.rng: Random Number Generator ver. 20
[    8.402920] usb 2-1: reset high-speed USB device number 2 using musb-hdrc
[    8.593893] ieee80211 phy0: rt2x00_set_rt: Info - RT chipset 5390, rev 0502 detected
[    8.869360] ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 5370 detected
[    8.933631] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[    8.952725] usbcore: registered new interface driver rt2800usb
[   10.404962] using random self ethernet address
[   10.404982] using random host ethernet address
[   10.457396] using random self ethernet address
[   10.457417] using random host ethernet address
[   10.516450] Mass Storage Function, version: 2009/09/11
[   10.516482] LUN: removable file: (no medium)
[   11.704012] ti_am3359-tscadc 44e0d000.tscadc: chan 0 step_avg truncating to 16
[   11.704036] ti_am3359-tscadc 44e0d000.tscadc: chan 1 step_avg truncating to 16
[   11.704045] ti_am3359-tscadc 44e0d000.tscadc: chan 2 step_avg truncating to 16
[   11.704054] ti_am3359-tscadc 44e0d000.tscadc: chan 3 step_avg truncating to 16
[   11.704063] ti_am3359-tscadc 44e0d000.tscadc: chan 4 step_avg truncating to 16
[   11.704072] ti_am3359-tscadc 44e0d000.tscadc: chan 5 step_avg truncating to 16
[   11.704082] ti_am3359-tscadc 44e0d000.tscadc: chan 6 step_avg truncating to 16
[   11.704091] ti_am3359-tscadc 44e0d000.tscadc: chan 7 step_avg truncating to 16
[   12.970244] usb0: HOST MAC be:1a:ad:2a:55:01
[   12.972247] usb0: MAC be:1a:ad:2a:55:02
[   12.976169] usb1: HOST MAC be:1a:ad:2a:55:04
[   12.976547] usb1: MAC be:1a:ad:2a:55:05
[   13.211329] configfs-gadget gadget: high-speed config #1: c
[   15.755094] random: crng init done
[   15.755115] random: 7 urandom warning(s) missed due to ratelimiting

I guess that may be all good, except that you cannot use the PMIC driver from Xenomai?

[RobertCNelson]

Better ping the Xenomai guys. ;)