基于SDK3.01版本资料测试，有时候系统起不来

梁淑怡-Tronlong

问题：
  出现概率性系统无法启动，报错如下

1. U-Boot 2016.05-00042-g225a0c6 (Jul 09 2018 - 09:24:27 +0800)
   
2. 
   
3. CPU  : DRA752-GP ES2.0
   
4. Model: TI AM5728 BeagleBoard-X15
   
5. Board: AM572x EVM REV A.30
   
6. I2C:   ready
   
7. DRAM:  1 GiB
   
8. MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
   
9. reading uboot.env
   
10. SCSI:  SATA link 0 timeout.
    
11. AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
    
12. flags: 64bit ncq stag pm led clo only pmp pio slum part ccc apst
    
13. scanning bus for devices...
    
14. Found 0 device(s).
    
15. Net:   eth0: ethernet@48484000
    
16. Hit any key to stop autoboot:  0
    
17. Saving Environment to FAT...
    
18. writing uboot.env
    
19. FAT: Misaligned buffer address (bef1ef60)
    
20. done
    
21. MMC: no card present
    
22. MMC: no card present
    
23. MMC: no card present
    
24. MMC: no card present
    
25. switch to partitions #0, OK
    
26. mmc1(part 0) is current device
    
27. SD/MMC found on device 1
    
28. 5540048 bytes read in 156 ms (33.9 MiB/s)
    
29. 105880 bytes read in 18 ms (5.6 MiB/s)
    
30. Booting from mmc1 ...
    
31. Kernel image @ 0x82000000 [ 0x000000 - 0x5488d0 ]
    
32. ## Flattened Device Tree blob at 88000000
    
33.    Booting using the fdt blob at 0x88000000
    
34.    Loading Device Tree to 8ffe3000, end 8ffffd97 ... OK
    
35. 
    
36. Starting kernel ...
    
37. 
    
38. [    0.000000] Booting Linux on physical CPU 0x0
    
39. [    0.000000] Initializing cgroup subsys cpuset
    
40. [    0.000000] Initializing cgroup subsys cpu
    
41. [    0.000000] Initializing cgroup subsys cpuacct
    
42. [    0.000000] Linux version 4.4.19 (root@ubuntu) (gcc version 5.3.1 20160113 (Linaro GCC 5.3-2016.02) ) #7 SMP PREEMPT Wed Jun 5 21:32:36 PDT 2019
    
43. [    0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=30c5387d
    
44. [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
    
45. [    0.000000] Machine model: TI AM572x EVM Rev A3
    
46. [    0.000000] Reserved memory: created CMA memory pool at 0x0000000095800000, size 56 MiB
    
47. [    0.000000] Reserved memory: initialized node ipu2_cma@95800000, compatible id shared-dma-pool
    
48. [    0.000000] Reserved memory: created CMA memory pool at 0x0000000099000000, size 64 MiB
    
49. [    0.000000] Reserved memory: initialized node dsp1_cma@99000000, compatible id shared-dma-pool
    
50. [    0.000000] Reserved memory: created CMA memory pool at 0x000000009d000000, size 32 MiB
    
51. [    0.000000] Reserved memory: initialized node ipu1_cma@9d000000, compatible id shared-dma-pool
    
52. [    0.000000] Reserved memory: created CMA memory pool at 0x000000009f000000, size 8 MiB
    
53. [    0.000000] Reserved memory: initialized node dsp2_cma@9f000000, compatible id shared-dma-pool
    
54. [    0.000000] cma: Reserved 80 MiB at 0x00000000bac00000
    
55. [    0.000000] Forcing write-allocate cache policy for SMP
    
56. [    0.000000] Memory policy: Data cache writealloc
    
57. [    0.000000] OMAP4: Map 0x00000000bfd00000 to fe600000 for dram barrier
    
58. [    0.000000] DRA752 ES2.0
    
59. [    0.000000] PERCPU: Embedded 12 pages/cpu @ef630000 s19008 r8192 d21952 u49152
    
60. [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 210496
    
61. [    0.000000] Kernel command line: console=ttyO2,115200n8 vt.global_cursor_default=0 consoleblank=0 coherent_pool=2M root=PARTUUID=87bdaebe-02 rw rootfstype=ext4 rootwait
    
62. [    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
    
63. [    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
    
64. [    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
    
65. [    0.000000] Memory: 583484K/848896K available (6875K kernel code, 379K rwdata, 2524K rodata, 348K init, 291K bss, 19652K reserved, 245760K cma-reserved, 177152K highmem)
    
66. [    0.000000] Virtual kernel memory layout:
    
67. [    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    
68. [    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
    
69. [    0.000000]     vmalloc : 0xf0800000 - 0xff800000   ( 240 MB)
    
70. [    0.000000]     lowmem  : 0xc0000000 - 0xf0000000   ( 768 MB)
    
71. [    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
    
72. [    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
    
73. [    0.000000]       .text : 0xc0008000 - 0xc093605c   (9401 kB)
    
74. [    0.000000]       .init : 0xc0937000 - 0xc098e000   ( 348 kB)
    
75. [    0.000000]       .data : 0xc098e000 - 0xc09ece10   ( 380 kB)
    
76. [    0.000000]        .bss : 0xc09ee000 - 0xc0a36ee0   ( 292 kB)
    
77. [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
    
78. [    0.000000] Preemptible hierarchical RCU implementation.
    
79. [    0.000000]  Build-time adjustment of leaf fanout to 32.
    
80. [    0.000000] NR_IRQS:16 nr_irqs:16 16
    
81. [    0.000000] OMAP clockevent source: timer1 at 32786 Hz
    
82. [    0.000000] Architected cp15 timer(s) running at 6.14MHz (virt).
    
83. [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x16af5adb9, max_idle_ns: 440795202250 ns
    
84. [    0.000004] sched_clock: 56 bits at 6MHz, resolution 162ns, wraps every 4398046511023ns
    
85. [    0.000015] Switching to timer-based delay loop, resolution 162ns
    
86. [    0.000331] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns
    
87. [    0.000339] OMAP clocksource: 32k_counter at 32768 Hz
    
88. [    0.000770] Console: colour dummy device 80x30
    
89. [    0.000786] WARNING: Your 'console=ttyO2' has been replaced by 'ttyS2'
    
90. [    0.000792] This ensures that you still see kernel messages. Please
    
91. [    0.000798] update your kernel commandline.
    
92. [    0.000810] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.29 BogoMIPS (lpj=61475)
    
93. [    0.000824] pid_max: default: 32768 minimum: 301
    
94. [    0.000918] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
    
95. [    0.000928] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
    
96. [    0.001468] Initializing cgroup subsys io
    
97. [    0.001484] Initializing cgroup subsys memory
    
98. [    0.001508] Initializing cgroup subsys devices
    
99. [    0.001520] Initializing cgroup subsys freezer
    
100. [    0.001532] Initializing cgroup subsys perf_event
     
101. [    0.001543] Initializing cgroup subsys pids
     
102. [    0.001567] CPU: Testing write buffer coherency: ok
     
103. [    0.001762] /cpus/cpu@0 missing clock-frequency property
     
104. [    0.001778] /cpus/cpu@1 missing clock-frequency property
     
105. [    0.001789] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
     
106. [    0.001823] Setting up static identity map for 0x800082c0 - 0x80008318
     
107. [    0.080081] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
     
108. [    0.080140] Brought up 2 CPUs
     
109. [    0.080153] SMP: Total of 2 processors activated (24.59 BogoMIPS).
     
110. [    0.080160] CPU: All CPU(s) started in SVC mode.
     
111. [    0.080532] devtmpfs: initialized
     
112. [    0.110342] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
     
113. [    0.111323] omap_hwmod: l3_main_2 using broken dt data from ocp
     
114. [    0.251645] omap_hwmod: dss_dispc: _wait_target_ready failed: -16
     
115. [    0.251658] omap_hwmod: dss_dispc: cannot be enabled for reset (3)
     
116. [    0.254247] omap_hwmod: dss_hdmi: _wait_target_ready failed: -16
     
117. [    0.254257] omap_hwmod: dss_hdmi: cannot be enabled for reset (3)
     
118. [    0.321844] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
     
119. [    0.326723] pinctrl core: initialized pinctrl subsystem
     
120. [    0.327585] NET: Registered protocol family 16
     
121. [    0.329123] DMA: preallocated 2048 KiB pool for atomic coherent allocations
     
122. [    0.350323] cpuidle: using governor ladder
     
123. [    0.380349] cpuidle: using governor menu
     
124. [    0.389181] OMAP GPIO hardware version 0.1
     
125. [    0.395698] irq: no irq domain found for /ocp/l4@4a000000/scm@2000/pinmux@1400 !
     
126. [    0.396099] irq: no irq domain found for /ocp/l4@4a000000/scm@2000/pinmux@1400 !
     
127. [    0.396489] irq: no irq domain found for /ocp/l4@4a000000/scm@2000/pinmux@1400 !
     
128. [    0.414798] omap-gpmc 50000000.gpmc: GPMC revision 6.0
     
129. [    0.414811] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
     
130. [    0.425976] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
     
131. [    0.425986] hw-breakpoint: maximum watchpoint size is 8 bytes.
     
132. [    0.426454] omap4_sram_init:Unable to allocate sram needed to handle errata I688
     
133. [    0.426464] omap4_sram_init:Unable to get sram pool needed to handle errata I688
     
134. [    0.427047] OMAP DMA hardware revision 0.0
     
135. [    0.464684] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver
     
136. [    0.465891] edma 43300000.edma: memcpy is disabled
     
137. [    0.470743] edma 43300000.edma: TI EDMA DMA engine driver
     
138. [    0.474804] omap-iommu 40d01000.mmu: 40d01000.mmu registered
     
139. [    0.474990] omap-iommu 40d02000.mmu: 40d02000.mmu registered
     
140. [    0.475150] omap-iommu 58882000.mmu: 58882000.mmu registered
     
141. [    0.475306] omap-iommu 55082000.mmu: 55082000.mmu registered
     
142. [    0.475598] omap-iommu 41501000.mmu: 41501000.mmu registered
     
143. [    0.475796] omap-iommu 41502000.mmu: 41502000.mmu registered
     
144. [    0.477913] SCSI subsystem initialized
     
145. [    0.478152] usbcore: registered new interface driver usbfs
     
146. [    0.478212] usbcore: registered new interface driver hub
     
147. [    0.478297] usbcore: registered new device driver usb
     
148. [    0.479398] palmas 0-0058: Irq flag is 0x00000008
     
149. [    0.492757] palmas 0-0058: Muxing GPIO 2f, PWM 0, LED 0
     
150. [    0.496694] smps3: ramp_delay not set
     
151. [    0.574101] omap_i2c 48070000.i2c: bus 0 rev0.12 at 400 kHz
     
152. [    0.574494] omap_i2c 48060000.i2c: bus 2 rev0.12 at 400 kHz
     
153. [    0.575059] omap_i2c 4807a000.i2c: bus 3 rev0.12 at 400 kHz
     
154. [    0.575623] omap_i2c 4807c000.i2c: bus 4 rev0.12 at 400 kHz
     
155. [    0.575853] media: Linux media interface: v0.10
     
156. [    0.575904] Linux video capture interface: v2.00
     
157. [    0.575945] pps_core: LinuxPPS API ver. 1 registered
     
158. [    0.575952] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
     
159. [    0.575976] PTP clock support registered
     
160. [    0.576023] EDAC MC: Ver: 3.0.0
     
161. [    0.576785] omap-mailbox 4883c000.mailbox: omap mailbox rev 0x400
     
162. [    0.577086] omap-mailbox 4883e000.mailbox: omap mailbox rev 0x400
     
163. [    0.577377] omap-mailbox 48840000.mailbox: omap mailbox rev 0x400
     
164. [    0.577674] omap-mailbox 48842000.mailbox: omap mailbox rev 0x400
     
165. [    0.578020] Advanced Linux Sound Architecture Driver Initialized.
     
166. [    0.578900] clocksource: Switched to clocksource arch_sys_counter
     
167. [    0.589940] NET: Registered protocol family 2
     
168. [    0.590435] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
     
169. [    0.590500] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
     
170. [    0.590625] TCP: Hash tables configured (established 8192 bind 8192)
     
171. [    0.590672] UDP hash table entries: 512 (order: 2, 16384 bytes)
     
172. [    0.590704] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
     
173. [    0.590842] NET: Registered protocol family 1
     
174. [    0.591150] RPC: Registered named UNIX socket transport module.
     
175. [    0.591159] RPC: Registered udp transport module.
     
176. [    0.591166] RPC: Registered tcp transport module.
     
177. [    0.591172] RPC: Registered tcp NFSv4.1 backchannel transport module.
     
178. [    0.592235] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
     
179. [    0.594694] futex hash table entries: 512 (order: 3, 32768 bytes)
     
180. [    0.602460] squashfs: version 4.0 (2009/01/31) Phillip Lougher
     
181. [    0.603111] NFS: Registering the id_resolver key type
     
182. [    0.603140] Key type id_resolver registered
     
183. [    0.603148] Key type id_legacy registered
     
184. [    0.603207] ntfs: driver 2.1.32 [Flags: R/O].
     
185. [    0.605178] bounce: pool size: 64 pages
     
186. [    0.605334] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248)
     
187. [    0.605348] io scheduler noop registered
     
188. [    0.605361] io scheduler deadline registered
     
189. [    0.605393] io scheduler cfq registered (default)
     
190. [    0.610709] pinctrl-single 4a003400.pinmux: 282 pins at pa fc003400 size 1128
     
191. [    0.614889] PCI host bridge /ocp/axi@0/pcie@51000000 ranges:
     
192. [    0.614900]   No bus range found for /ocp/axi@0/pcie@51000000, using [bus 00-ff]
     
193. [    0.614932]    IO 0x20003000..0x20012fff -> 0x00000000
     
194. [    0.614952]   MEM 0x20013000..0x2fffffff -> 0x20013000
     
195. [    0.645803] dra7-pcie 51000000.pcie: link is not up
     
196. [    0.645982] dra7-pcie 51000000.pcie: PCI host bridge to bus 0000:00
     
197. [    0.645995] pci_bus 0000:00: root bus resource [bus 00-ff]
     
198. [    0.646005] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]
     
199. [    0.646015] pci_bus 0000:00: root bus resource [mem 0x20013000-0x2fffffff]
     
200. [    0.646413] PCI: bus0: Fast back to back transfers disabled
     
201. [    0.646533] PCI: bus1: Fast back to back transfers enabled
     
202. [    0.646584] irq: no irq domain found for /ocp/axi@0/pcie@51000000/interrupt-controller !
     
203. [    0.646617] pci 0000:00:00.0: BAR 0: assigned [mem 0x20100000-0x201fffff]
     
204. [    0.646631] pci 0000:00:00.0: BAR 1: assigned [mem 0x20020000-0x2002ffff]
     
205. [    0.646643] pci 0000:00:00.0: PCI bridge to [bus 01]
     
206. [    0.646871] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt
     
207. [    0.648300] backlight supply power not found, using dummy regulator
     
208. [    0.709520] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
     
209. [    0.713052] 4806a000.serial: ttyS0 at MMIO 0x4806a000 (irq = 301, base_baud = 3000000) is a 8250
     
210. [    0.713996] 4806c000.serial: ttyS1 at MMIO 0x4806c000 (irq = 302, base_baud = 3000000) is a 8250
     
211. [    0.714855] console [ttyS2] disabled
     
212. [    0.714901] 48020000.serial: ttyS2 at MMIO 0x48020000 (irq = 303, base_baud = 3000000) is a 8250
     
213. [    1.771683] console [ttyS2] enabled
     
214. [    1.776006] 48422000.serial: ttyS7 at MMIO 0x48422000 (irq = 304, base_baud = 3000000) is a 8250
     
215. [    1.785710] 4ae2b000.serial: ttyS9 at MMIO 0x4ae2b000 (irq = 305, base_baud = 3000000) is a 8250
     
216. [    1.795921] [drm] Initialized drm 1.1.0 20060810
     
217. [    1.802705] OMAP DSS rev 6.1
     
218. [    1.806812] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops)
     
219. [    1.815299] omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops)
     
220. [    1.831696] loop: module loaded
     
221. [    1.840056] libphy: Fixed MDIO Bus: probed
     
222. [    1.888934] davinci_mdio 48485000.mdio: davinci mdio revision 1.6
     
223. [    1.895057] davinci_mdio 48485000.mdio: detected phy mask fffffffe
     
224. [    1.903749] libphy: 48485000.mdio: probed
     
225. [    1.907781] davinci_mdio 48485000.mdio: phy[0]: device 48485000.mdio:00, driver Micrel KSZ9031 Gigabit PHY
     
226. [    1.918169] cpsw 48484000.ethernet: Detected MACID = 88:3f:4a:68:f9:06
     
227. [    1.925490] cpsw 48484000.ethernet: cpsw: Detected MACID = 88:3f:4a:68:f9:07
     
228. [    2.145175] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
     
229. [    2.150732] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 1
     
230. [    2.158727] xhci-hcd xhci-hcd.1.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x00010010
     
231. [    2.167526] xhci-hcd xhci-hcd.1.auto: irq 483, io mem 0x48890000
     
232. [    2.174289] hub 1-0:1.0: USB hub found
     
233. [    2.178087] hub 1-0:1.0: 1 port detected
     
234. [    2.182399] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller
     
235. [    2.187919] xhci-hcd xhci-hcd.1.auto: new USB bus registered, assigned bus number 2
     
236. [    2.195717] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
     
237. [    2.204515] hub 2-0:1.0: USB hub found
     
238. [    2.208310] hub 2-0:1.0: 1 port detected
     
239. [    2.212746] usbcore: registered new interface driver usb-storage
     
240. [    2.219132] mousedev: PS/2 mouse device common for all mice
     
241. [    2.268972] rtc-ds1307: probe of 3-006f failed with error -5
     
242. [    2.274697] i2c /dev entries driver
     
243. [    2.281090] tmp102 3-0049: initialized
     
244. [    2.287766] omap_hsmmc 4809c000.mmc: Got CD GPIO
     
245. [    2.292676] omap_hsmmc 4809c000.mmc: no pinctrl state for sdr104 mode
     
246. [    2.299165] omap_hsmmc 4809c000.mmc: no pinctrl state for ddr50 mode
     
247. [    2.305547] omap_hsmmc 4809c000.mmc: no pinctrl state for sdr50 mode
     
248. [    2.312063] omap_hsmmc 4809c000.mmc: no pinctrl state for sdr25 mode
     
249. [    2.318446] omap_hsmmc 4809c000.mmc: no pinctrl state for sdr12 mode
     
250. [    2.324844] omap_hsmmc 4809c000.mmc: no pinctrl state for hs mode
     
251. [    2.331139] vdd_3v3: supplied by regen1
     
252. [    2.369578] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr25 mode
     
253. [    2.375960] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr12 mode
     
254. [    2.440483] ledtrig-cpu: registered to indicate activity on CPUs
     
255. [    2.449844] 0-0018 supply HPVDD not found, using dummy regulator
     
256. [    2.455931] 0-0018 supply SPRVDD not found, using dummy regulator
     
257. [    2.462123] 0-0018 supply SPLVDD not found, using dummy regulator
     
258. [    2.468480] aic_dvdd_fixed: supplied by vdd_3v3
     
259. [    2.475683] NET: Registered protocol family 10
     
260. [    2.491014] sit: IPv6 over IPv4 tunneling driver
     
261. [    2.496212] NET: Registered protocol family 17
     
262. [    2.500955] Key type dns_resolver registered
     
263. [    2.505363] omap_voltage_late_init: Voltage driver support not added
     
264. [    2.512261] Adding alias for supply vdd,cpu0 -> vdd,4a003b20.oppdm
     
265. [    2.518471] Adding alias for supply vbb,cpu0 -> vbb,4a003b20.oppdm
     
266. [    2.525178] Adding alias for supply vdd,cpu0 -> vdd,4a003b20.oppdm
     
267. [    2.531411] Adding alias for supply vbb,cpu0 -> vbb,4a003b20.oppdm
     
268. [    2.539533] Power Management for TI OMAP4+ devices.
     
269. [    2.544631] Registering SWP/SWPB emulation handler
     
270. [    2.551516] dmm 4e000000.dmm: initialized all PAT entries
     
271. [    2.571331] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
     
272. [    2.577971] [drm] No driver support for vblank timestamp query.
     
273. [    2.584926] [drm] Enabling DMM ywrap scrolling
     
274. [    2.629431] Console: switching to colour frame buffer device 60x34
     
275. [    2.636289] omapdrm omapdrm.0: fb0: omapdrm frame buffer device
     
276. [    2.679137] [drm] Initialized omapdrm 1.0.0 20110917 on minor 0
     
277. [    2.696291] input: gpio_keys as /devices/platform/gpio_keys/input/input0
     
278. [    2.703492] hctosys: unable to open rtc device (rtc0)
     
279. [    2.716554] aic_dvdd_fixed: disabling
     
280. [    2.720250] vmmcwl_fixed: disabling
     
281. [    2.723898] ALSA device list:
     
282. [    2.726873]   No soundcards found.
     
283. [    2.730983] Waiting for root device PARTUUID=87bdaebe-02...
     
284. [    3.432537] mmc1: MAN_BKOPS_EN bit is not set
     
285. [    3.440198] mmc1: new DDR MMC card at address 0001
     
286. [    3.445354] mmcblk1: mmc1:0001 Q2J54A 3.59 GiB
     
287. [    3.460098] mmcblk1boot0: mmc1:0001 Q2J54A partition 1 16.0 MiB
     
288. [    3.476211] mmcblk1boot1: mmc1:0001 Q2J54A partition 2 16.0 MiB
     
289. [    3.483075]  mmcblk1: p1 p2
     
290. [    3.698616] EXT4-fs (mmcblk1p2): recovery complete
     
291. [    3.703830] EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null)
     
292. [    3.712020] VFS: Mounted root (ext4 filesystem) on device 179:2.
     
293. [    3.718800] devtmpfs: mounted
     
294. [    3.721934] Freeing unused kernel memory: 348K (c0937000 - c098e000)
     
295. [    3.728310] This architecture does not have kernel memory protection.
     
296. [    3.825442] systemd[1]: System time before build time, advancing clock.
     
297. [    3.845046] random: systemd: uninitialized urandom read (16 bytes read, 34 bits of entropy available)
     
298. [    3.856018] random: systemd: uninitialized urandom read (16 bytes read, 34 bits of entropy available)
     
299. [    3.866929] systemd[1]: systemd 229 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN)
     
300. [    3.885309] systemd[1]: Detected architecture arm.
     
301. 
     
302. Welcome to Arago 2016.08!
     
303. 
     
304. [    3.909360] systemd[1]: Set hostname to <am57xx-evm>.
     
305. [    3.960506] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read, 35 bits of entropy available)
     
306. [    3.973628] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read, 36 bits of entropy available)
     
307. [    3.983715] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read, 36 bits of entropy available)
     
308. [    3.983803] random: systemd-gpt-aut: uninitialized urandom read (16 bytes read, 36 bits of entropy available)
     
309. [    4.013449] random: systemd-sysv-ge: uninitialized urandom read (16 bytes read, 38 bits of entropy available)
     
310. [    4.038220] random: systemd: uninitialized urandom read (16 bytes read, 40 bits of entropy available)
     
311. [    4.047931] random: systemd: uninitialized urandom read (16 bytes read, 40 bits of entropy available)
     
312. [    4.057800] random: systemd: uninitialized urandom read (16 bytes read, 40 bits of entropy available)
     
313. [    4.235560] systemd[1]: sockets.target: Found ordering cycle on sockets.target/start
     
314. [    4.243393] systemd[1]: sockets.target: Found dependency on dbus.socket/start
     
315. [    4.250575] systemd[1]: sockets.target: Found dependency on sysinit.target/start
     
316. [    4.258003] systemd[1]: sockets.target: Found dependency on alignment.service/start
     
317. [    4.265744] systemd[1]: sockets.target: Found dependency on basic.target/start
     
318. [    4.273008] systemd[1]: sockets.target: Found dependency on sockets.target/start
     
319. [    4.280491] systemd[1]: sockets.target: Breaking ordering cycle by deleting job dbus.socket/start
     
320. [    4.289415] systemd[1]: dbus.socket: Job dbus.socket/start deleted to break ordering cycle starting with sockets.target/start
     
321. [ SKIP ] Ordering cycle found, skipping D-Bus System Message Bus Socket
     
322. [    4.319176] systemd[1]: sockets.target: Found ordering cycle on sockets.target/start
     
323. [    4.326955] systemd[1]: sockets.target: Found dependency on dropbear.socket/stop
     
324. [    4.334442] systemd[1]: sockets.target: Found dependency on sysinit.target/start
     
325. [    4.341896] systemd[1]: sockets.target: Found dependency on alignment.service/start
     
326. [    4.349625] systemd[1]: sockets.target: Found dependency on basic.target/start
     
327. [    4.356879] systemd[1]: sockets.target: Found dependency on sockets.target/start
     
328. [    4.364345] systemd[1]: sockets.target: Breaking ordering cycle by deleting job dropbear.socket/stop
     
329. [    4.373544] systemd[1]: dropbear.socket: Job dropbear.socket/stop deleted to break ordering cycle starting with sockets.target/start
     
330. [ SKIP ] Ordering cycle found, skipping dropbear.socket
     
331. [    4.409116] systemd[1]: sockets.target: Found ordering cycle on sockets.target/start
     
332. [    4.416899] systemd[1]: sockets.target: Found dependency on rpcbind.socket/start
     
333. [    4.424362] systemd[1]: sockets.target: Found dependency on sysinit.target/start
     
334. [    4.431822] systemd[1]: sockets.target: Found dependency on alignment.service/start
     
335. [    4.439547] systemd[1]: sockets.target: Found dependency on basic.target/start
     
336. [    4.446800] systemd[1]: sockets.target: Found dependency on sockets.target/start
     
337. [    4.454258] systemd[1]: sockets.target: Breaking ordering cycle by deleting job rpcbind.socket/start
     
338. [    4.463458] systemd[1]: rpcbind.socket: Job rpcbind.socket/start deleted to break ordering cycle starting with sockets.target/start
     
339. [ SKIP ] Ordering cycle found, skipping RPCbind Server Activation Socket
     
340. [    4.499143] systemd[1]: basic.target: Found ordering cycle on basic.target/start
     
341. [    4.506572] systemd[1]: basic.target: Found dependency on sysinit.target/start
     
342. [    4.513862] systemd[1]: basic.target: Found dependency on alignment.service/start
     
343. [    4.521414] systemd[1]: basic.target: Found dependency on basic.target/start
     
344. [    4.528493] systemd[1]: basic.target: Breaking ordering cycle by deleting job alignment.service/start
     
345. [    4.537782] systemd[1]: alignment.service: Job alignment.service/start deleted to break ordering cycle starting with basic.target/start
     
346. [ SKIP ] Ordering cycle found, skipping alignment.service
     
347. [    4.570759] systemd[1]: Reached target Remote File Systems.
     
348. [  OK  ] Reached target Remote File Systems.
     
349. [    4.599223] systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
     
350. [  OK  ] Started Dispatch Password Requests to Console Directory Watch.
     
351. [    4.635126] systemd[1]: Listening on udev Control Socket.
     
352. [  OK  ] Listening on udev Control Socket.
     
353. [    4.659208] systemd[1]: Listening on Network Service Netlink Socket.
     
354. [  OK  ] Listening on Network Service Netlink Socket.
     
355. [    4.690078] systemd[1]: Created slice System Slice.
     
356. [  OK  ] Created slice System Slice.
     
357. [    4.719545] systemd[1]: Created slice system-getty.slice.
     
358. [  OK  ] Created slice system-getty.slice.
     
359. [    4.749504] systemd[1]: Created slice system-serial\x2dgetty.slice.
     
360. [  OK  ] Created slice system-serial\x2dgetty.slice.
     
361. [    4.779839] systemd[1]: Listening on udev Kernel Socket.
     
362. [  OK  ] Listening on udev Kernel Socket.
     
363. [    4.809164] systemd[1]: Listening on Journal Socket.
     
364. [  OK  ] Listening on Journal Socket.
     
365. [    4.869221] systemd[1]: Starting Setup Virtual Console...
     
366.          Starting Setup Virtual Console...
     
367. [    4.900761] systemd[1]: Mounting Debug File System...
     
368.          Mounting Debug File System...
     
369. [    4.959201] systemd[1]: Starting Create list of required static device nodes for the current kernel...
     
370.          Starting Create list of required st... nodes for the current kernel...
     
371. [    4.991082] systemd[1]: Mounting Temporary Directory...
     
372.          Mounting Temporary Directory...
     
373. [    5.022144] systemd[1]: Starting Load Kernel Modules...
     
374.          Starting Load Kernel Modules...
     
375. [    5.034918] CMEMK module: reference Linux version 4.4.19
     
376. [    5.040959] systemd[1]: Listening on Journal Socket (/dev/log).
     
377. [    5.047730] llocated heap buffer 0x40500000 of size 0x100000
     
378. [    5.053484] cmemk initialized
     
379. [  OK  ] Listening on Journal Socket (/dev/log).
     
380. [    5.079661] systemd[1]: Created slice User and Session Slice.
     
381. [  OK  ] Created slice User and Session Slice.
     
382. [    5.109076] systemd[1]: Reached target Slices.
     
383. [  OK  ] Reached target Slices.
     
384. [    5.129142] systemd[1]: Listening on Syslog Socket.
     
385. [  OK  ] Listening on Syslog Socket.
     
386. [    5.189256] systemd[1]: Starting Journal Service...
     
387.          Starting Journal Service...
     
388. [    5.219235] systemd[1]: Started Forward Password Requests to Wall Directory Watch.
     
389. [  OK  ] Started Forward Password Requests to Wall Directory Watch.
     
390. [    5.259311] systemd[1]: Reached target Paths.
     
391. [  OK  ] Reached target Paths.
     
392. [    5.289114] systemd[1]: Reached target Swap.
     
393. [  OK  ] Reached target Swap.
     
394. [    5.349177] systemd[1]: Starting Remount Root and Kernel File Systems...
     
395.          Starting Remount Root and Kernel File Systems...
     
396. [    5.366021] EXT4-fs (mmcblk1p2): re-mounted. Opts: (null)
     
397. [    5.380922] systemd[1]: Mounting POSIX Message Queue File System...
     
398.          Mounting POSIX Message Queue File System...
     
399. [    5.409542] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
     
400. [  OK  ] Listening on /dev/initctl Compatibility Named Pipe.
     
401. [    5.472559] systemd[1]: Mounted Debug File System.
     
402. [  OK  ] Mounted Debug File System.
     
403. [    5.499139] systemd[1]: Mounted POSIX Message Queue File System.
     
404. [  OK  ] Mounted POSIX Message Queue File System.
     
405. [    5.529103] systemd[1]: Mounted Temporary Directory.
     
406. [  OK  ] Mounted Temporary Directory.
     
407. [    5.549258] systemd[1]: Started Journal Service.
     
408. [  OK  ] Started Journal Service.
     
409. [  OK  ] Started Setup Virtual Console.
     
410. [  OK  ] Started Create list of required sta...ce nodes for the current kernel.
     
411. [FAILED] Failed to start Load Kernel Modules.
     
412. See 'systemctl status systemd-modules-load.service' for details.
     
413. [  OK  ] Started Remount Root and Kernel File Systems.
     
414.          Starting udev Coldplug all Devices...
     
415.          Starting Apply Kernel Variables...
     
416.          Starting Create Static Device Nodes in /dev...
     
417.          Starting Flush Journal to Persistent Storage...
     
418. [  OK  ] Started Apply Kernel Variables.
     
419. [  OK  ] Started Create Static Device Nodes in /dev.
     
420. [    6.110232] systemd-journald[137]: Received request to flush runtime journal from PID 1
     
421. [  OK  ] Started Flush Journal to Persistent Storage.
     
422.          Starting udev Kernel Device Manager...
     
423. [  OK  ] Reached target Local File Systems (Pre).
     
424.          Mounting /media/ram...
     
425.          Mounting /var/volatile...
     
426. [  OK  ] Mounted /var/volatile.
     
427. [  OK  ] Mounted /media/ram.
     
428. [  OK  ] Started udev Kernel Device Manager.
     
429. [  OK  ] Started udev Coldplug all Devices.
     
430. [    6.514335] omap-rproc 58820000.ipu: assigned reserved memory node ipu1_cma@9d000000
     
431. [    6.543606]  remoteproc0: 58820000.ipu is available
     
432. [    6.552832]  remoteproc0: Note: remoteproc is still under development and considered experimental.
     
433. [    6.572009]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
434. [    6.585047] omap-rproc 55020000.ipu: assigned reserved memory node ipu2_cma@95800000
     
435. [    6.596760]  remoteproc1: 55020000.ipu is available
     
436.          Starting Load/Save Random Seed...[    6.605081]  remoteproc1: Note: remoteproc is still under development and considered experimental.
     
437. 
     
438. [  OK  ] Reached target Local File Systems.[    6.621110]  remoteproc1: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
439. 
     
440.          Starting Create Volatile Files and Directories...
     
441. [  OK  ] Started Load/Save Random Seed.
     
442. [    6.676741] omap-rproc 40800000.dsp: assigned reserved memory node dsp1_cma@99000000
     
443. [    6.706791]  remoteproc2: 40800000.dsp is available
     
444. [    6.728159]  remoteproc2: Note: remoteproc is still under development and considered experimental.
     
445. [  OK  ] Started Create Volatile Files and Directories.[    6.758554]  remoteproc2: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
446. 
     
447. [    6.775861]  remoteproc0: registered virtio0 (type 7)
     
448. [  OK  ] Found device /dev/ttyS2.
     
449. [    6.799807]  remoteproc1: registered virtio1 (type 7)
     
450. [    6.805877] omap-rproc 41000000.dsp: assigned reserved memory node dsp2_cma@9f000000
     
451. [    6.836342]  remoteproc3: 41000000.dsp is available
     
452. [    6.851030]  remoteproc3: Note: remoteproc is still under development and considered experimental.
     
453. [    6.860889] Error: Driver 'tlv320aic31xx-codec' is already registered, aborting...
     
454. [    6.871770]  remoteproc3: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
455.          Starting Network Time Synchronization...
     
456.          Starting Update UTMP about System Boot/Shutdown...
     
457. [    6.956599] palmas-rtc 48070000.i2c:tps659038@58:tps659038_rtc: rtc core: registered 48070000.i2c:tps659 as rtc1
     
458. [    6.989706] omap_rng 48090000.rng: OMAP Random Number Generator ver. 20
     
459. [    7.001317] Error: Driver 'tlv320aic31xx-codec' is already registered, aborting...
     
460. [  OK  ] Started Network Time Synchronization.
     
461. [    7.076601] spi2.0 supply vcc not found, using dummy regulator
     
462. [    7.107533] gv7601: gv7601 sdi driver registered successfully!
     
463. [    7.109199] ads7846 spi2.0: touchscreen, irq 129
     
464. [    7.109582] input: ADS7846 Touchscreen as /devices/platform/44000000.ocp/480b8000.spi/spi_master/spi2/spi2.0/input/input1
     
465. [    7.154781] omap_rtc 48838000.rtc: rtc core: registered 48838000.rtc as rtc2
     
466. [  OK  ] Started Update UTMP about System Boot/Shutdown.
     
467.          Starting Synchronize System and HW clocks...
     
468. [    7.327000] vpe 489d0000.vpe: loading firmware vpdma-1b8.bin
     
469. [  OK  ] Reached target System Time Synchronized.
     
470. [    7.360233] vpe 489d0000.vpe: Device registered as /dev/video0
     
471. [    7.406400] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
     
472. [FAILED] Failed to start Synchronize System and HW clocks.
     
473. [    7.441186] ahci 4a140000.sata: SSS flag set, parallel bus scan disabled
     
474. [    7.454135] ahci 4a140000.sata: AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl platform mode
     
475. See 'systemctl status sync-clocks.service' for details.
     
476. [    7.492812] CAN device driver interface
     
477. [    7.495535] ahci 4a140000.sata: flags: 64bit ncq sntf stag pm led clo only pmp pio slum part ccc apst
     
478. [    7.535518] scsi host0: ahci
     
479. [    7.538721] ata1: SATA max UDMA/133 mmio [mem 0x4a140000-0x4a1410ff] port 0x100 irq 354
     
480. [    7.538985] m25p80 spi32766.0: found n25q256a, expected s25fl256s1
     
481. [    7.539011] m25p80 spi32766.0: n25q256a (32768 Kbytes)
     
482. [    7.539076] 8 ofpart partitions found on MTD device spi32766.0
     
483. [    7.539078] Creating 8 MTD partitions on "spi32766.0":
     
484. [    7.539083] 0x000000000000-0x000000020000 : "QSPI.SPL"
     
485. [    7.582308] 0x000000020000-0x000000040000 : "QSPI.SPL.backup1"
     
486. [  OK  ] Reached target System Initialization.
     
487. [    7.606470] 0x000000040000-0x000000140000 : "QSPI.u-boot"
     
488. [  OK  ] Listening on Avahi mDNS/DNS-SD Stack Activation Socket.
     
489. [    7.629171] 0x000000140000-0x0000001c0000 : "QSPI.u-boot-spl-os"
     
490. [    7.642148] ti-pruss 4b200000.pruss: creating PRU cores and other child platform devices
     
491. [    7.43543] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller
     
492. [    7.643562] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 3
     
493. [    7.662322] 0x0000001c0000-0x0000001d0000 : "QSPI.u-boot-env"
     
494. [    7.670199] xhci-hcd xhci-hcd.2.auto: hcc params 0x0220f04c hci version 0x100 quirks 0x00010010
     
495. [    7.670888] irq: no irq domain found for /ocp/pruss@4b200000/intc@4b220000 !
     
496. [    7.671317] irq: no irq domain found for /ocp/pruss@4b200000/intc@4b220000 !
     
497. [    7.671711] ti-pruss 4b280000.pruss: creating PRU cores and other child platform devices
     
498. [    7.672731] irq: no irq domain found for /ocp/pruss@4b280000/intc@4b2a0000 !
     
499. [    7.673161] irq: no irq domain found for /ocp/pruss@4b280000/intc@4b2a0000 !
     
500. [  OK  ] Reached target Sockets.[    7.719142] 0x0000001d0000-0x0000001e0000 : "QSPI.u-boot-env.backup1"
     
501. 
     
502. [    7.728130] vip 48990000.vip: loading firmware vpdma-1b8.bin
     
503. [    7.734251]  remoteproc2: registered virtio2 (type 7)
     
504. [    7.749289] [drm] Initialized pvr 1.14.3699939 20110701 on minor 1
     
505. [    7.756299] c_can_platform 4ae3c000.can: c_can_platform device registered (regs=fce3c000, irq=367)
     
506. [    7.763058] xhci-hcd xhci-hcd.2.auto: irq 487, io mem 0x488d0000
     
507. [    7.771948] vip 48990000.vip: VPDMA firmware loaded
     
508. [    7.772922]  remoteproc4: 4b234000.pru0 is available
     
509. [    7.772925]  remoteproc4: Note: remoteproc is still under development and considered experimental.
     
510. [    7.772927]  remoteproc4: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
511. [    7.773427] hub 3-0:1.0: USB hub found
     
512. [    7.773466] hub 3-0:1.0: 1 port detected
     
513. [    7.773768] xhci-hcd xhci-hcd.2.auto: xHCI Host Controller
     
514. [    7.773780] xhci-hcd xhci-hcd.2.auto: new USB bus registered, assigned bus number 4
     
515. [    7.773855] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
     
516. [    7.819500] hub 4-0:1.0: USB hub found
     
517. [    7.819627] hub 4-0:1.0: 1 port detected
     
518. [    7.822417]  remoteproc4: registered virtio3 (type 7)
     
519. [    7.822459] pru-rproc 4b234000.pru0: PRU rproc node /ocp/pruss@4b200000/pru0@4b234000 probed successfully
     
520. [    7.822723]  remoteproc5: 4b238000.pru1 is available
     
521. [    7.822726]  remoteproc5: Note: remoteproc is still under development and considered experimental.
     
522. [    7.822728]  remoteproc5: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
523. [    7.826186]  remoteproc5: registered virtio4 (type 7)
     
524. [    7.826217] pru-rproc 4b238000.pru1: PRU rproc node /ocp/pruss@4b200000/pru1@4b238000 probed successfully
     
525. [    7.826475]  remoteproc6: 4b2b4000.pru0 is available
     
526. [    7.826478]  remoteproc6: Note: remoteproc is still under development and considered experimental.
     
527. [    7.826480]  remoteproc6: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
528. [    7.830708] 0x0000001e0000-0x0000009e0000 : "QSPI.kernel"
     
529. [    7.831089]  remoteproc6: registered virtio5 (type 7)
     
530. [    7.831122] pru-rproc 4b2b4000.pru0: PRU rproc node /ocp/pruss@4b280000/pru0@4b2b4000 probed successfully
     
531. [    7.831352]  remoteproc7: 4b2b8000.pru1 is available
     
532. [    7.831355]  remoteproc7: Note: remoteproc is still under development and considered experimental.
     
533. [    7.831357]  remoteproc7: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
     
534. [    7.837199]  remoteproc7: registered virtio6 (type 7)
     
535. [    7.837234] pru-rproc 4b2b8000.pru1: PRU rproc node /ocp/pruss@4b280000/pru1@4b2b8000 probed successfully
     
536. [    7.849525] 0x0000009e0000-0x000002000000 : "QSPI.user-data"
     
537. [    7.872194] net eth1: initializing cpsw version 1.15 (0)
     
538. [    7.872211] net eth0: initialized cpsw ale version 1.4
     
539. [    7.872215] net eth0: ALE Table size 1024
     
540. [    7.877436] libphy: PHY 48485000.mdio:01 not found
     
541. [    7.877442] net eth1: phy "48485000.mdio:01" not found on slave 1, err -19
     
542. [    7.906947] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
     
543. [    7.916827] net eth0: initializing cpsw version 1.15 (0)
     
544. [    8.029376] vip2-s1: Port A: Using subdev gv7601 for capture
     
545. [    8.035648] vip2-s1: device registered as video1
     
546. [    8.042095] net eth0: phy found : id is : 0x221622
     
547. [    8.054002] omap-hdmi-audio omap-hdmi-audio.0.auto: snd-soc-dummy-dai <-> 58040000.encoder mapping ok
     
548. [    8.074686]  remoteproc3: registered virtio7 (type 7)
     
549. [    8.076533] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
     
550.          Starting Network Service...
     
551. [  OK  ] Reached target Basic System.
     
552. [    8.138999] ata1: SATA link down (SStatus 0 SControl 300)
     
553. [  OK  ] Started Kernel Logging Service.
     
554. [    8.194965] asoc-simple-card sound@0: tlv320aic31xx-hifi <-> 48464000.mcasp mapping ok
     
555. [  OK  ] Started strongSwan IPsec IKEv1/IKEv2 daemon using ipsec.conf.[    8.223926] asoc-simple-card sound@0: ASoC: no source widget found for Line In
     
556. 
     
557. [    8.247806] asoc-simple-card sound@0: ASoC: Failed to add route Line In -> direct -> Line In
     
558. [    8.259741] tlv320aic31xx-codec 0-0018: Unable to sync registers 0x1b-0x1b. -121
     
559. [    8.280284] tlv320aic31xx-codec 0-0018: Failed to restore cache: -121
     
560.          tSarting Permit User Sessions...
     
561. [[;32m  OK   ]Started System Logging Service.[    8.353658] FAT-fs (mmcblk1p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
     
562. 
     
563.          tSarting uim-sysfs.service...
     
564.          tSarting Save/Restore Sound Card State...
     
565.          tSarting Print notice about GPLv3 packages...
     
566. [[;32m  OK   ]Started Daily Cleanup of Temporary Directorie.[    8.468073] NET: Registered protocol family 15
     
567. 
     
568. [  OK  ] Reached target Timers.
     
569. [  OK  ] Started Network Service.
     
570. [  OK  ] Started Permit User Sessions.
     
571. [  OK  ] Started Save/Restore Sound Card State.
     
572. [    8.827748] Initializing XFRM netlink socket
     
573. [    9.117649] random: nonblocking pool is initialized
     
574. [    9.254763]  remoteproc0: powering up 58820000.ipu
     
575. [    9.268989] Unable to handle kernel paging request at virtual address 00002248
     
576. [    9.276655] pgd = c0003000
     
577. [    9.301807]  remoteproc0: Booting fw image dra7-ipu1-fw.xem4, size 4870344
     
578. [    9.312333] [00002248] *pgd=80000080004003
     
579. [    9.321076] omap-iommu 58882000.mmu: 58882000.mmu: version 2.1
     
580. [    9.338932] , *pmd=00000000
     
581. [    9.353277] Internal error: Oops: 205 [#1] PREEMPT SMP ARM
     
582. [    9.358788] Modules linked in: virtio_rpmsg_bus(+) xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo snd_soc_simple_card pwm_fan snd_soc_omap_hdmi_audio pwm_omap_dmtimer pru_rproc pruss_intc c_can_platform c_can pvrsrvkm(O) m25p80 can_dev ti_vip pruss ahci_platform libahci_platform libahci omap_wdt libata ti_vpe ti_sc ti_vpdma rtc_omap gv7601 ads7846 omap_rng extcon_palmas rng_core rtc_palmas debugss_kmodule(O) omap_remoteproc remoteproc virtio virtio_ring sch_fq_codel uio_module_drv(O) uio gdbserverproxy(O) cmemk(O)
     
583. [    9.406666] CPU: 1 PID: 55 Comm: kworker/u4:1 Tainted: G           O    4.4.19 #7
     
584. [    9.414177] Hardware name: Generic DRA74X (Flattened Device Tree)
     
585. [    9.420300] Workqueue: events_unbound flush_to_ldisc
     
586. [    9.425287] task: eea81e00 ti: eeabe000 task.ti: eeabe000
     
587. [    9.430706] PC is at n_tty_receive_buf_common+0x7c/0xa60
     
588. [    9.436039] LR is at n_tty_receive_buf_common+0x78/0xa60
     
589. [    9.441370] pc : [<c03570cc>]    lr : [<c03570c8>]    psr: 20010113
     
590. [    9.441370] sp : eeabfe28  ip : eeabfe28  fp : eeabfe94
     
591. [    9.452894] r10: ee166c00  r9 : ef009000  r8 : ef009014
     
592. [    9.458136] r7 : ee166c00  r6 : ee166d84  r5 : ee166c80  r4 : c06efba4
     
593. [    9.464687] r3 : 00002000  r2 : 00000001  r1 : 00000000  r0 : ee166c80
     
594. [    9.471238] Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
     
595. [    9.478574] Control: 30c5387d  Table: ae138300  DAC: 55555555
     
596. [    9.484341] Process kworker/u4:1 (pid: 55, stack limit = 0xeeabe210)
     
597. [    9.490717] Stack: (0xeeabfe28 to 0xeeac0000)
     
598. [    9.495089] fe20:                   ee166c80 c09904f8 eeabfeb4 00020001 ee166d84 55555556
     
599. [    9.503298] fe40: c09906d4 eea821a8 c06efba4 ef63fe80 00002000 00000000 00000000 eeb2fc18
     
600. [    9.511508] fe60: 0000009f eeb2fd18 c00544b0 eeb2fc00 00000000 ef009004 ee166c00 ef009014
     
601. [    9.519716] fe80: ef009000 c0357ab0 eeabfeac eeabfe98 c0357acc c035705c 00000001 eeaa4580
     
602. [    9.527925] fea0: eeabfee4 eeabfeb0 c035b050 c0357abc c06b9320 d3ca75c0 eeabfee4 ef009004
     
603. [    9.536133] fec0: eeaa4580 ef0a8000 00000000 ef05b400 00000000 ef0a8000 eeabff24 eeabfee8
     
604. [    9.544341] fee0: c0049a34 c035af74 ef0a8000 ef0a8014 eeabe000 00000088 eeaa4580 ef0a8000
     
605. [    9.552550] ff00: eeaa4598 ef0a8014 eeabe000 00000088 eeaa4580 ef0a8000 eeabff5c eeabff28
     
606. [    9.560759] ff20: c0049d50 c004991c ef0a8164 c0990100 00000000 00000000 eeaa5680 eeaa4580
     
607. [    9.568968] ff40: c0049d04 00000000 00000000 00000000 eeabffac eeabff60 c004f8a8 c0049d10
     
608. [    9.577177] ff60: 01200000 00000000 24400800 eeaa4580 00000000 00000000 eeabff78 eeabff78
     
609. [    9.585385] ff80: 00000000 00000000 eeabff88 eeabff88 eeaa5680 c004f7c4 00000000 00000000
     
610. [    9.593593] ffa0: 00000000 eeabffb0 c000fac8 c004f7d0 00000000 00000000 00000000 00000000
     
611. [    9.601802] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     
612. [    9.610011] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 20001051 1008a806
     
613. [    9.618217] Backtrace:
     
614. [    9.620677] [<c0357050>] (n_tty_receive_buf_common) from [<c0357acc>] (n_tty_receive_buf2+0x1c/0x24)
     
615. [    9.629842]  r10:c0357ab0 r9:ef009000 r8:ef009014 r7:ee166c00 r6:ef009004 r5:00000000
     
616. [    9.637734]  r4:eeb2fc00
     
617. [    9.640282] [<c0357ab0>] (n_tty_receive_buf2) from [<c035b050>] (flush_to_ldisc+0xe8/0x134)
     
618. [    9.648670] [<c035af68>] (flush_to_ldisc) from [<c0049a34>] (process_one_work+0x124/0x3f4)
     
619. [    9.656964]  r10:ef0a8000 r9:00000000 r8:ef05b400 r7:00000000 r6:ef0a8000 r5:eeaa4580
     
620. [    9.664856]  r4:ef009004
     
621. [    9.667405] [<c0049910>] (process_one_work) from [<c0049d50>] (worker_thread+0x4c/0x524)
     
622. [    9.675523]  r10:ef0a8000 r9:eeaa4580 r8:00000088 r7:eeabe000 r6:ef0a8014 r5:eeaa4598
     
623. [    9.683413]  r4:ef0a8000
     
624. [    9.685962] [<c0049d04>] (worker_thread) from [<c004f8a8>] (kthread+0xe4/0xfc)
     
625. [    9.693210]  r10:00000000 r9:00000000 r8:00000000 r7:c0049d04 r6:eeaa4580 r5:eeaa5680
     
626. [    9.701099]  r4:00000000
     
627. [    9.703648] [<c004f7c4>] (kthread) from [<c000fac8>] (ret_from_fork+0x14/0x2c)
     
628. [    9.710895]  r7:00000000 r6:00000000 r5:c004f7c4 r4:eeaa5680
     
629. [    9.716600] Code: e50b2030 e50b3034 eb0d91ec e51b3044 (e5930248)
     
630. [   10.020151] gv7601: the resolution of the input video is 720P60
     
631. [   10.146254] ---[ end trace a4628be2ff85fb2c ]---
     
632. [   10.151204] Unable to handle kernel paging request at virtual address ffffffec
     
633. [   10.158455] pgd = c0003000
     
634. [   10.161169] [ffffffec] *pgd=80000080007003, *pmd=affae003, *pte=00000000
     
635. [   10.167918] Internal error: Oops: 207 [#2] PREEMPT SMP ARM
     
636. [   10.173423] Modules linked in: virtio_rpmsg_bus(+) xfrm_user xfrm4_tunnel ipcomp xfrm_ipcomp esp4 ah4 af_key xfrm_algo snd_soc_simple_card pwm_fan snd_soc_omap_hdmi_audio pwm_omap_dmtimer pru_rproc pruss_intc c_can_platform c_can pvrsrvkm(O) m25p80 can_dev ti_vip pruss ahci_platform libahci_platform libahci omap_wdt libata ti_vpe ti_sc ti_vpdma rtc_omap gv7601 ads7846 omap_rng extcon_palmas rng_core rtc_palmas debugss_kmodule(O) omap_remoteproc remoteproc virtio virtio_ring sch_fq_codel uio_module_drv(O) uio gdbserverproxy(O) cmemk(O)
     
637. [   10.221283] CPU: 1 PID: 55 Comm: kworker/u4:1 Tainted: G      D    O    4.4.19 #7
     
638. [   10.228794] Hardware name: Generic DRA74X (Flattened Device Tree)
     
639. [   10.234916] task: eea81e00 ti: eeabe000 task.ti: eeabe000
     
640. [   10.240339] PC is at kthread_data+0x10/0x18
     
641. [   10.244540] LR is at wq_worker_sleeping+0x14/0xd8
     
642. [   10.249259] pc : [<c004fcf8>]    lr : [<c004ab00>]    psr: 20070093
     
643. [   10.249259] sp : eeabfb50  ip : eeabfb60  fp : eeabfb5c
     
644. [   10.260782] r10: 00000001  r9 : ef63fe40  r8 : eea821a8
     
645. [   10.266023] r7 : c09906d4  r6 : c098be40  r5 : eea81e00  r4 : 00000001
     
646. [   10.272573] r3 : 00000000  r2 : 00000000  r1 : 00000001  r0 : eea81e00
     
647. [   10.279127] Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
     
648. [   10.286378] Control: 30c5387d  Table: 93d68540  DAC: 55555555
     
649. [   10.292143] Process kworker/u4:1 (pid: 55, stack limit = 0xeeabe210)
     
650. [   10.298519] Stack: (0xeeabfb50 to 0xeeac0000)
     
651. [   10.302891] fb40:                                     eeabfb74 eeabfb60 c004ab00 c004fcf4
     
652. [   10.311100] fb60: ef63fe40 eea81e00 eeabfbcc eeabfb78 c06b94c0 c004aaf8 c09eee54 ee820000
     
653. [   10.319310] fb80: eeabfb9c eeabfb90 c008bbd0 c008b954 eeabfbe4 c06b96f8 00000000 c008bbc4
     
654. [   10.327519] fba0: c0035974 eeabe000 eeabf8b4 ef090000 eeabfbf0 eea82120 c085ab64 c085ab6c
     
655. [   10.335727] fbc0: eeabfbe4 eeabfbd0 c06b96f8 c06b9048 eea81e00 eeabf8b4 eeabfc0c eeabfbe8
     
656. [   10.343937] fbe0: c0037664 c06b96b0 c03570ce 00000000 eeabfbf0 eeabfbf0 c0034a1c 00000001
     
657. [   10.352145] fc00: eeabfc94 eeabfc10 c0013530 c0037030 eeabe210 0000000b eeabfc3c 00000008
     
658. [   10.360354] fc20: 00000000 00000000 c03570d0 60070113 65abfc5c 32623035 20303330 62303565
     
659. [   10.368562] fc40: 34333033 30626520 65313964 35652063 30336231 28203434 33393565 38343230
     
660. [   10.376771] fc60: c0002029 00000000 00000000 00002248 eeabfdd8 00000205 00000000 00002248
     
661. [   10.384980] fc80: ef009000 ee166c00 eeabfcac eeabfc98 c002176c c00132f0 eeabfdd8 00000205
     
662. [   10.393188] fca0: eeabfcfc eeabfcb0 c001caa8 c002170c eeabfce4 eeabfcc0 c005f404 c02b9498
     
663. [   10.401397] fcc0: ef633e80 dfe50c48 0000c56e 00000000 ffffffff c0994f9c 00000205 c001cb48
     
664. [   10.409605] fce0: 00002248 eeabfdd8 ef009000 ee166c00 eeabfd24 eeabfd00 c001cc4c c001c768
     
665. [   10.417813] fd00: c0994f9c 00000205 c001cb48 00002248 eeabfdd8 ef009000 eeabfdd4 eeabfd28
     
666. [   10.426021] fd20: c0009298 c001cb54 eeabfd5c eeabfd38 c0061680 c0076c24 ef63fe80 eea81e48
     
667. [   10.434228] fd40: ef63fe80 eea81e48 00000001 00000000 eeabfddc eeabfd60 c00633f4 c0061708
     
668. [   10.442436] fd60: 60030013 00000003 00000000 00000000 00000000 ffffe000 eeabfdb4 eeabfd88
     
669. [   10.450645] fd80: c006fd18 c06bd388 00001c00 eeabfd98 eea81e48 00000001 00000000 eeabfda8
     
670. [   10.458854] fda0: 080796ea 00000000 eead0048 eead0048 ef63fe80 c03570cc 20010113 ffffffff
     
671. [   10.467062] fdc0: eeabfe0c ef009014 eeabfe94 eeabfdd8 c0013d58 c000926c ee166c80 00000000
     
672. [   10.475271] fde0: 00000001 00002000 c06efba4 ee166c80 ee166d84 ee166c00 ef009014 ef009000
     
673. [   10.483480] fe00: ee166c00 eeabfe94 eeabfe28 eeabfe28 c03570c8 c03570cc 20010113 ffffffff
     
674. [   10.491689] fe20: c03570c8 c06bb888 ee166c80 c09904f8 eeabfeb4 00020001 ee166d84 55555556
     
675. [   10.499898] fe40: c09906d4 eea821a8 c06efba4 ef63fe80 00002000 00000000 00000000 eeb2fc18
     
676. [   10.508106] fe60: 0000009f eeb2fd18 c00544b0 eeb2fc00 00000000 ef009004 ee166c00 ef009014
     
677. [   10.516314] fe80: ef009000 c0357ab0 eeabfeac eeabfe98 c0357acc c035705c 00000001 eeaa4580
     
678. [   10.524523] fea0: eeabfee4 eeabfeb0 c035b050 c0357abc c06b9320 d3ca75c0 eeabfee4 ef009004
     
679. [   10.532731] fec0: eeaa4580 ef0a8000 00000000 ef05b400 00000000 ef0a8000 eeabff24 eeabfee8
     
680. [   10.540939] fee0: c0049a34 c035af74 ef0a8000 ef0a8014 eeabe000 00000088 eeaa4580 ef0a8000
     
681. [   10.549148] ff00: eeaa4598 ef0a8014 eeabe000 00000088 eeaa4580 ef0a8000 eeabff5c eeabff28
     
682. [   10.557357] ff20: c0049d50 c004991c ef0a8164 c0990100 00000000 00000000 eeaa5680 eeaa4580
     
683. [   10.565564] ff40: c0049d04 00000000 00000000 00000000 eeabffac eeabff60 c004f8a8 c0049d10
     
684. [   10.573774] ff60: 01200000 00000000 24400800 eeaa4580 00000000 00000000 eeabff78 eeabff78
     
685. [   10.581982] ff80: 00000001 00010001 eeabff88 eeabff88 eeaa5680 c004f7c4 00000000 00000000
     
686. [   10.590191] ffa0: 00000000 eeabffb0 c000fac8 c004f7d0 00000000 00000000 00000000 00000000
     
687. [   10.598399] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
     
688. [   10.606607] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 20001051 1008a806
     
689. [   10.614813] Backtrace:
     
690. [   10.617279] [<c004fce8>] (kthread_data) from [<c004ab00>] (wq_worker_sleeping+0x14/0xd8)
     
691. [   10.625406] [<c004aaec>] (wq_worker_sleeping) from [<c06b94c0>] (__schedule+0x484/0x668)
     
692. [   10.633526]  r5:eea81e00 r4:ef63fe40
     
693. [   10.637126] [<c06b903c>] (__schedule) from [<c06b96f8>] (schedule+0x54/0xc4)
     
694. [   10.644200]  r10:c085ab6c r9:c085ab64 r8:eea82120 r7:eeabfbf0 r6:ef090000 r5:eeabf8b4
     
695. [   10.652091]  r4:eeabe000
     
696. [   10.654639] [<c06b96a4>] (schedule) from [<c0037664>] (do_exit+0x640/0x9b8)
     
697. [   10.661625]  r5:eeabf8b4 r4:eea81e00
     
698. [   10.665228] [<c0037024>] (do_exit) from [<c0013530>] (die+0x24c/0x424)
     
699. [   10.671778]  r7:00000001
     
700. [   10.674327] [<c00132e4>] (die) from [<c002176c>] (__do_kernel_fault.part.0+0x6c/0x1ec)
     
701. [   10.682272]  r10:ee166c00 r9:ef009000 r8:00002248 r7:00000000 r6:00000205 r5:eeabfdd8
     
702. [   10.690160]  r4:00002248
     
703. [   10.692707] [<c0021700>] (__do_kernel_fault.part.0) from [<c001caa8>] (do_page_fault+0x34c/0x358)
     
704. [   10.701611]  r7:00000205 r4:eeabfdd8
     
705. [   10.705210] [<c001c75c>] (do_page_fault) from [<c001cc4c>] (do_translation_fault+0x104/0x108)
     
706. [   10.713765]  r10:ee166c00 r9:ef009000 r8:eeabfdd8 r7:00002248 r6:c001cb48 r5:00000205
     
707. [   10.721654]  r4:c0994f9c
     
708. [   10.724201] [<c001cb48>] (do_translation_fault) from [<c0009298>] (do_DataAbort+0x38/0xb8)
     
709. [   10.732494]  r9:ef009000 r8:eeabfdd8 r7:00002248 r6:c001cb48 r5:00000205 r4:c0994f9c
     
710. [   10.740300] [<c0009260>] (do_DataAbort) from [<c0013d58>] (__dabt_svc+0x38/0x60)
     
711. [   10.747722] Exception stack(0xeeabfdd8 to 0xeeabfe20)
     
712. [   10.752791] fdc0:                                                       ee166c80 00000000
     
713. [   10.761000] fde0: 00000001 00002000 c06efba4 ee166c80 ee166d84 ee166c00 ef009014 ef009000
     
714. [   10.769208] fe00: ee166c00 eeabfe94 eeabfe28 eeabfe28 c03570c8 c03570cc 20010113 ffffffff
     
715. [   10.777413]  r8:ef009014 r7:eeabfe0c r6:ffffffff r5:20010113 r4:c03570cc
     
716. [   10.784172] [<c0357050>] (n_tty_receive_buf_common) from [<c0357acc>] (n_tty_receive_buf2+0x1c/0x24)
     
717. [   10.793338]  r10:c0357ab0 r9:ef009000 r8:ef009014 r7:ee166c00 r6:ef009004 r5:00000000
     
718. [   10.801229]  r4:eeb2fc00
     
719. [   10.803777] [<c0357ab0>] (n_tty_receive_buf2) from [<c035b050>] (flush_to_ldisc+0xe8/0x134)
     
720. [   10.812162] [<c035af68>] (flush_to_ldisc) from [<c0049a34>] (process_one_work+0x124/0x3f4)
     
721. [   10.820456]  r10:ef0a8000 r9:00000000 r8:ef05b400 r7:00000000 r6:ef0a8000 r5:eeaa4580
     
722. [   10.828344]  r4:ef009004
     
723. [   10.830892] [<c0049910>] (process_one_work) from [<c0049d50>] (worker_thread+0x4c/0x524)
     
724. [   10.839010]  r10:ef0a8000 r9:eeaa4580 r8:00000088 r7:eeabe000 r6:ef0a8014 r5:eeaa4598
     
725. [   10.846900]  r4:ef0a8000
     
726. [   10.849447] [<c0049d04>] (worker_thread) from [<c004f8a8>] (kthread+0xe4/0xfc)
     
727. [   10.856694]  r10:00000000 r9:00000000 r8:00000000 r7:c0049d04 r6:eeaa4580 r5:eeaa5680
     
728. [   10.864583]  r4:00000000
     
729. [   10.867131] [<c004f7c4>] (kthread) from [<c000fac8>] (ret_from_fork+0x14/0x2c)
     
730. [   10.874377]  r7:00000000 r6:00000000 r5:c004f7c4 r4:eeaa5680
     
731. [   10.880083] Code: e1a0c00d e92dd800 e24cb004 e5903378 (e5130014)
     
732. [   10.886200] ---[ end trace a4628be2ff85fb2d ]---
     
733. [   10.890833] Fixing recursive fault but reboot is needed!
     
734. [   31.168892] INFO: rcu_preempt detected stalls on CPUs/tasks:
     
735. [   31.174587]  1-...: (0 ticks this GP) idle=1af/140000000000000/0 softirq=3722/3722 fqs=0
     
736. [   31.182795]  (detected by 0, t=2102 jiffies, g=153, c=152, q=17398)
     
737. [   31.189093] Task dump for CPU 1:
     
738. [   31.192329] kworker/u4:1    D c06b931c     0    55      0 0x00000000
     
739. [   31.198722] Backtrace:
     
740. [   31.201181] Backtrace aborted due to bad frame pointer <eeabfb04>
     
741. [   31.207298] rcu_preempt kthread starved for 2102 jiffies! g153 c152 f0x0 s3 ->state=0x1
     
742. [   94.218889] INFO: rcu_preempt detected stalls on CPUs/tasks:
     
743. [   94.224578]  1-...: (0 ticks this GP) idle=1af/140000000000000/0 softirq=3722/3722 fqs=0
     
744. [   94.232785]  (detected by 0, t=8407 jiffies, g=153, c=152, q=17398)
     
745. [   94.239081] Task dump for CPU 1:
     
746. [   94.242317] kworker/u4:1    D c06b931c     0    55      0 0x00000000
     
747. [   94.248710] Backtrace:
     
748. [   94.251168] Backtrace aborted due to bad frame pointer <eeabfb04>
     
749. [   94.257284] rcu_preempt kthread starved for 8407 jiffies! g153 c152 f0x2 s3 ->state=0x100
     
750. [  157.268889] INFO: rcu_preempt detected stalls on CPUs/tasks:
     
751. [  157.274578]  1-...: (0 ticks this GP) idle=1af/140000000000000/0 softirq=3722/3722 fqs=0
     
752. [  157.282784]  (detected by 0, t=14712 jiffies, g=153, c=152, q=17398)
     
753. [  157.289166] Task dump for CPU 1:
     
754. [  157.292402] kworker/u4:1    D c06b931c     0    55      0 0x00000000
     
755. [  157.298794] Backtrace:
     
756. [  157.301252] Backtrace aborted due to bad frame pointer <eeabfb04>
     
757. [  157.307369] rcu_preempt kthread starved for 14712 jiffies! g153 c152 f0x2 s3 ->state=0x100

复制代码

解决思路：

  1.从报错信息分析，为空指针问题。
  2. 对tty->disc_data做空指针判断，避免访问空指针。参考下图，修改内核源码：


3.TI SDK3.01版本内核有此BUG，此问题TI在SDK4.03上已修复。