API tools faq
paste
Advertisement
Guest User

Untitled

a guest
Feb 2nd, 2016
179
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
text 17.50 KB | None | 0 0
raw download clone embed print report
  1. Starting kernel ...
  2.  
  3. [ 0.000000] Booting Linux on physical CPU 0x0
  4. [ 0.000000] Linux version 4.5.0-rc2-00166-gaa6459b (franklin@beast-server) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #20 SMP PREEMPT Tue Feb 2 14:54:24 CS
  5. T 2016
  6. [ 0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7), cr=30c5387d
  7. [ 0.000000] CPU: div instructions available: patching division code
  8. [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
  9. [ 0.000000] Machine model: Texas Instruments Keystone 2 Kepler/Hawking EVM
  10. [ 0.000000] Switching physical address space to 0x800000000
  11. [ 0.000000] cma: Reserved 16 MiB at 0x000000085f000000
  12. [ 0.000000] Forcing write-allocate cache policy for SMP
  13. [ 0.000000] Memory policy: Data cache writealloc
  14. [ 0.000000] PERCPU: Embedded 13 pages/cpu @ef3a7000 s21248 r8192 d23808 u53248
  15. [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 391680
  16. [ 0.000000] Kernel command line: console=ttyS0,115200n8 rootwait=1 rootfstype=nfs root=/dev/nfs rw nfsroot=192.168.1.219:/home/franklin/nfs/k2hk/,v3,tcp,rsize=4096,wsize=4096 ip=dhcp
  17. [ 0.000000] log_buf_len individual max cpu contribution: 4096 bytes
  18. [ 0.000000] log_buf_len total cpu_extra contributions: 12288 bytes
  19. [ 0.000000] log_buf_len min size: 16384 bytes
  20. [ 0.000000] log_buf_len: 32768 bytes
  21. [ 0.000000] early log buf free: 14524(88%)
  22. [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
  23. [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
  24. [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
  25. [ 0.000000] Memory: 1534388K/1572864K available (5680K kernel code, 365K rwdata, 1948K rodata, 368K init, 202K bss, 22092K reserved, 16384K cma-reserved, 770048K highmem)
  26. [ 0.000000] Virtual kernel memory layout:
  27. [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
  28. [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
  29. [ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
  30. [ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
  31. [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
  32. [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
  33. [ 0.000000] .text : 0xc0008000 - 0xc077b494 (7630 kB)
  34. [ 0.000000] .init : 0xc077c000 - 0xc07d8000 ( 368 kB)
  35. [ 0.000000] .data : 0xc07d8000 - 0xc0833708 ( 366 kB)
  36. [ 0.000000] .bss : 0xc0836000 - 0xc0868928 ( 203 kB)
  37. [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
  38. [ 0.000000] Preemptible hierarchical RCU implementation.
  39. [ 0.000000] Build-time adjustment of leaf fanout to 32.
  40. [ 0.000000] NR_IRQS:16 nr_irqs:16 16
  41. [ 0.000000] Architected cp15 timer(s) running at 200.00MHz (virt).
  42. [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x2e2049d3e8, max_idle_ns: 440795210634 ns
  43. [ 0.000003] sched_clock: 56 bits at 200MHz, resolution 5ns, wraps every 4398046511102ns
  44. [ 0.000010] Switching to timer-based delay loop, resolution 5ns
  45. [ 0.000143] keystone timer clock @200000000 Hz
  46. [ 0.000248] Console: colour dummy device 80x30
  47. [ 0.000264] Calibrating delay loop (skipped), value calculated using timer frequency.. 400.00 BogoMIPS (lpj=2000000)
  48. [ 0.000272] pid_max: default: 4096 minimum: 301
  49. [ 0.000324] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
  50. [ 0.000330] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
  51. [ 0.000726] CPU: Testing write buffer coherency: ok
  52. [ 0.000886] /cpus/cpu@0 missing clock-frequency property
  53. [ 0.000902] /cpus/cpu@1 missing clock-frequency property
  54. [ 0.000916] /cpus/cpu@2 missing clock-frequency property
  55. [ 0.000932] /cpus/cpu@3 missing clock-frequency property
  56. [ 0.000939] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
  57. [ 0.000968] Setting up static identity map for 0x800082c0 - 0x800083cc
  58. [ 0.084489] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
  59. [ 0.114525] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
  60. [ 0.144555] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
  61. [ 0.144624] Brought up 4 CPUs
  62. [ 0.144637] SMP: Total of 4 processors activated (1600.00 BogoMIPS).
  63. [ 0.144643] CPU: All CPU(s) started in SVC mode.
  64. [ 0.144946] devtmpfs: initialized
  65. [ 0.150126] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0
  66. [ 0.150415] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
  67. [ 0.150857] NET: Registered protocol family 16
  68. [ 0.151545] DMA: preallocated 256 KiB pool for atomic coherent allocations
  69. [ 0.157807] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
  70. [ 0.157814] hw-breakpoint: maximum watchpoint size is 8 bytes.
  71. [ 0.166305] vgaarb: loaded
  72. [ 0.166551] SCSI subsystem initialized
  73. [ 0.166909] usbcore: registered new interface driver usbfs
  74. [ 0.166985] usbcore: registered new interface driver hub
  75. [ 0.167072] usbcore: registered new device driver usb
  76. [ 0.168700] clocksource: Switched to clocksource arch_sys_counter
  77. [ 0.193666] NET: Registered protocol family 2
  78. [ 0.194033] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
  79. [ 0.194086] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
  80. [ 0.194180] TCP: Hash tables configured (established 8192 bind 8192)
  81. [ 0.194221] UDP hash table entries: 512 (order: 2, 16384 bytes)
  82. [ 0.194243] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
  83. [ 0.194362] NET: Registered protocol family 1
  84. [ 0.204533] RPC: Registered named UNIX socket transport module.
  85. [ 0.204539] RPC: Registered udp transport module.
  86. [ 0.204543] RPC: Registered tcp transport module.
  87. [ 0.204549] RPC: Registered tcp NFSv4.1 backchannel transport module.
  88. [ 0.204677] Unpacking initramfs...
  89. [ 0.205069] Freeing initrd memory: 4K (cffff000 - d0000000)
  90. [ 0.205192] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available
  91. [ 0.205586] platform alarmtimer: set dma_pfn_offset00780000
  92. [ 0.205935] futex hash table entries: 16 (order: -2, 1024 bytes)
  93. [ 0.214726] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
  94. [ 0.214815] ntfs: driver 2.1.32 [Flags: R/O].
  95. [ 0.215050] jffs2: version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
  96. [ 0.217605] NET: Registered protocol family 38
  97. [ 0.217663] bounce: pool size: 64 pages
  98. [ 0.217798] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 253)
  99. [ 0.217810] io scheduler noop registered
  100. [ 0.217817] io scheduler deadline registered
  101. [ 0.217844] io scheduler cfq registered (default)
  102. [ 0.217959] keystone_irq soc:keystone_irq@26202a0: irqchip registered, nr_irqs 28
  103. [ 0.219098] keystone-navigator-qmss soc:qmss@2a40000: qmgr start queue 0, number of queues 8192
  104. [ 0.219206] keystone-navigator-qmss soc:qmss@2a40000: added qmgr start queue 0, num of queues 8192, reg_peek f09c0000, reg_status f09e2000, reg_config f09e4000, reg_region f09e6000, reg_push f0a00000, reg_pop f0a40000
  105. [ 0.219220] keystone-navigator-qmss soc:qmss@2a40000: qmgr start queue 8192, number of queues 8192
  106. [ 0.219307] keystone-navigator-qmss soc:qmss@2a40000: added qmgr start queue 8192, num of queues 8192, reg_peek f0a80000, reg_status f09e8400, reg_config f09ea000, reg_region f09ec000, reg_push f0ac0000, reg_pop f0b00000
  107. [ 0.219429] keystone-navigator-qmss soc:qmss@2a40000: firmware file ks2_qmss_pdsp_acc48.bin downloaded for PDSP
  108. [ 0.220770] keystone-navigator-dma soc:knav_dmas@0: DMA dma_gbe registered 41 logical channels, flows 32, tx chans: 9, rx chans: 24
  109. [ 0.262638] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
  110. [ 0.262707] platform serial8250: set dma_pfn_offset00780000
  111. [ 0.263890] console [ttyS0] disabled
  112. [ 0.263921] 2530c00.serial: ttyS0 at MMIO 0x2530c00 (irq = 26, base_baud = 12500000) is a 16550A
  113. [ 0.971905] console [ttyS0] enabled
  114. [ 0.975963] 2531000.serial: ttyS1 at MMIO 0x2531000 (irq = 27, base_baud = 12500000) is a 16550A
  115. [ 0.989150] loop: module loaded
  116. [ 0.992424] at24 0-0050: 131072 byte 24c1024 EEPROM, writable, 1 bytes/write
  117. [ 1.000619] m25p80 spi32766.0: n25q128a11 (16384 Kbytes)
  118. [ 1.005963] 2 ofpart partitions found on MTD device spi32766.0
  119. [ 1.011831] Creating 2 MTD partitions on "spi32766.0":
  120. [ 1.016987] 0x000000000000-0x000000080000 : "u-boot-spl"
  121. [ 1.023022] 0x000000080000-0x000001000000 : "misc"
  122. [ 1.028477] spi_davinci 21000400.spi: Controller at 0xf0a2c400
  123. [ 1.034731] spi_davinci 21000600.spi: Controller at 0xf0a2e600
  124. [ 1.040977] spi_davinci 21000800.spi: Controller at 0xf0a30800
  125. [ 1.088721] davinci_mdio 2090300.mdio: davinci mdio revision 1.5
  126. [ 1.094747] libphy: 2090300.mdio: probed
  127. [ 1.099225] davinci_mdio 2090300.mdio: phy[0]: device 2090300.mdio:00, driver Marvell 88E1111
  128. [ 1.107782] davinci_mdio 2090300.mdio: phy[1]: device 2090300.mdio:01, driver Marvell 88E1111
  129. [ 2.121472] netcp-1.0 2620110.netcp: module(netcp-xgbe) not used for device
  130. [ 2.329432] platform xhci-hcd.0.auto: set dma_pfn_offset00780000
  131. [ 2.335912] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
  132. [ 2.341572] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
  133. [ 2.349492] xhci-hcd xhci-hcd.0.auto: hcc params 0x0298f06d hci version 0x100 quirks 0x00010010
  134. [ 2.358230] xhci-hcd xhci-hcd.0.auto: irq 34, io mem 0x02690000
  135. [ 2.364308] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
  136. [ 2.371143] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
  137. [ 2.378389] usb usb1: Product: xHCI Host Controller
  138. [ 2.383310] usb usb1: Manufacturer: Linux 4.5.0-rc2-00166-gaa6459b xhci-hcd
  139. [ 2.390319] usb usb1: SerialNumber: xhci-hcd.0.auto
  140. [ 2.395569] hub 1-0:1.0: USB hub found
  141. [ 2.399371] hub 1-0:1.0: 1 port detected
  142. [ 2.403534] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
  143. [ 2.409173] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
  144. [ 2.416904] usb usb2: We don't know the algorithms for LPM for this host, disabling LPM.
  145. [ 2.425131] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
  146. [ 2.431969] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
  147. [ 2.439240] usb usb2: Product: xHCI Host Controller
  148. [ 2.444132] usb usb2: Manufacturer: Linux 4.5.0-rc2-00166-gaa6459b xhci-hcd
  149. [ 2.451140] usb usb2: SerialNumber: xhci-hcd.0.auto
  150. [ 2.456373] hub 2-0:1.0: USB hub found
  151. [ 2.460175] hub 2-0:1.0: 1 port detected
  152. [ 2.464438] usbcore: registered new interface driver usb-storage
  153. [ 2.470711] mousedev: PS/2 mouse device common for all mice
  154. [ 2.476471] i2c /dev entries driver
  155. [ 2.480473] davinci-wdt 22f0080.wdt: heartbeat 60 sec
  156. [ 2.486327] usbcore: registered new interface driver usbhid
  157. [ 2.491946] usbhid: USB HID core driver
  158. [ 2.496482] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xac
  159. [ 2.502951] nand: Micron MT29F4G08ABBDAHC
  160. [ 2.506972] nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
  161. [ 2.514894] Bad block table found at page 262080, version 0x01
  162. [ 2.521297] Bad block table found at page 262016, version 0x01
  163. [ 2.527466] 3 ofpart partitions found on MTD device 30000000.nand
  164. [ 2.533604] Creating 3 MTD partitions on "30000000.nand":
  165. [ 2.539043] 0x000000000000-0x000000100000 : "u-boot"
  166. [ 2.544694] 0x000000100000-0x000000180000 : "params"
  167. [ 2.550360] 0x000000180000-0x000020000000 : "ubifs"
  168. [ 2.556089] davinci_nand 30000000.nand: controller rev. 2.5
  169. [ 2.561932] platform oprofile-perf.0: set dma_pfn_offset00780000
  170. [ 2.568003] ------------[ cut here ]------------
  171. [ 2.572666] WARNING: CPU: 0 PID: 1 at drivers/base/power/common.c:150 dev_pm_domain_set+0x3c/0x48()
  172. [ 2.581767] PM domains can only be changed for unbound devices
  173. [ 2.587617] Modules linked in:
  174. [ 2.590708] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.5.0-rc2-00166-gaa6459b #20
  175. [ 2.598302] Hardware name: Keystone
  176. [ 2.601827] [<c0015e30>] (unwind_backtrace) from [<c0012724>] (show_stack+0x10/0x14)
  177. [ 2.609614] [<c0012724>] (show_stack) from [<c02ac9b8>] (dump_stack+0x70/0xbc)
  178. [ 2.616869] [<c02ac9b8>] (dump_stack) from [<c0022fc4>] (warn_slowpath_common+0x78/0xb4)
  179. [ 2.625034] [<c0022fc4>] (warn_slowpath_common) from [<c0023094>] (warn_slowpath_fmt+0x30/0x40)
  180. [ 2.633780] [<c0023094>] (warn_slowpath_fmt) from [<c0332fd8>] (dev_pm_domain_set+0x3c/0x48)
  181. [ 2.642268] [<c0332fd8>] (dev_pm_domain_set) from [<c03366f0>] (pm_clk_notify+0x90/0xa8)
  182. [ 2.650406] [<c03366f0>] (pm_clk_notify) from [<c003d61c>] (notifier_call_chain+0x44/0x84)
  183. [ 2.658714] [<c003d61c>] (notifier_call_chain) from [<c003d82c>] (__blocking_notifier_call_chain+0x48/0x60)
  184. [ 2.668492] [<c003d82c>] (__blocking_notifier_call_chain) from [<c003d85c>] (blocking_notifier_call_chain+0x18/0x20)
  185. [ 2.679071] [<c003d85c>] (blocking_notifier_call_chain) from [<c032a02c>] (device_del+0x30/0x1dc)
  186. [ 2.687979] [<c032a02c>] (device_del) from [<c032e41c>] (platform_device_del+0x18/0x90)
  187. [ 2.696024] [<c032e41c>] (platform_device_del) from [<c032e774>] (platform_device_unregister+0xc/0x18)
  188. [ 2.705376] [<c032e774>] (platform_device_unregister) from [<c04066d4>] (oprofile_perf_exit+0x98/0xbc)
  189. [ 2.714728] [<c04066d4>] (oprofile_perf_exit) from [<c07afd94>] (oprofile_perf_init+0x1c4/0x208)
  190. [ 2.723554] [<c07afd94>] (oprofile_perf_init) from [<c07afb68>] (oprofile_init+0x1c/0x78)
  191. [ 2.731771] [<c07afb68>] (oprofile_init) from [<c00096e8>] (do_one_initcall+0x84/0x1d4)
  192. [ 2.739820] [<c00096e8>] (do_one_initcall) from [<c077cdd8>] (kernel_init_freeable+0x118/0x1e4)
  193. [ 2.748555] [<c077cdd8>] (kernel_init_freeable) from [<c055cb98>] (kernel_init+0x8/0xf0)
  194. [ 2.756686] [<c055cb98>] (kernel_init) from [<c000f628>] (ret_from_fork+0x14/0x2c)
  195. [ 2.764298] ---[ end trace 5d3a513945def014 ]---
  196. [ 2.769010] oprofile: using timer interrupt.
  197. [ 2.773339] Netfilter messages via NETLINK v0.30.
  198. [ 2.778072] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
  199. [ 2.784570] ctnetlink v0.93: registering with nfnetlink.
  200. [ 2.790156] ipip: IPv4 over IPv4 tunneling driver
  201. [ 2.795214] gre: GRE over IPv4 demultiplexor driver
  202. [ 2.800124] ip_gre: GRE over IPv4 tunneling driver
  203. [ 2.805717] ip_tables: (C) 2000-2006 Netfilter Core Team
  204. [ 2.811145] ipt_CLUSTERIP: ClusterIP Version 0.8 loaded successfully
  205. [ 2.817543] arp_tables: arp_tables: (C) 2002 David S. Miller
  206. [ 2.823278] Initializing XFRM netlink socket
  207. [ 2.828232] NET: Registered protocol family 10
  208. [ 2.833384] NET: Registered protocol family 17
  209. [ 2.837855] NET: Registered protocol family 15
  210. [ 2.842329] 8021q: 802.1Q VLAN Support v1.8
  211. [ 2.847307] sctp: Hash tables configured (bind 65536)
  212. [ 2.852646] Registering SWP/SWPB emulation handler
  213. [ 2.949378] netcp-1.0 2620110.netcp eth0: Link is Down
  214. [ 2.956271] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
  215. [ 2.962139] 8021q: adding VLAN 0 to HW filter on device eth0
  216. [ 3.049396] netcp-1.0 2620110.netcp eth1: Link is Down
  217. [ 3.055280] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
  218. [ 3.061144] 8021q: adding VLAN 0 to HW filter on device eth1
  219. [ 3.066860] IP-Config: Failed to open gretap0
  220. [ 3.088710] Sending DHCP requests ..
  221. [ 6.949075] netcp-1.0 2620110.netcp eth0: Link is Up - 1Gbps/Full - flow control off
  222. [ 6.957026] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
  223. [ 12.508707] ., OK
  224. [ 12.558713] IP-Config: Got DHCP answer from 192.168.1.1, my address is 192.168.1.201
  225. [ 12.739421] IP-Config: Complete:
  226. [ 12.742660] device=eth0, hwaddr=b4:99:4c:b7:fc:b1, ipaddr=192.168.1.201, mask=255.255.255.0, gw=192.168.1.1
  227. [ 12.752888] host=192.168.1.201, domain=, nis-domain=(none)
  228. [ 12.758899] bootserver=192.168.1.1, rootserver=192.168.1.219, rootpath= nameserver0=8.8.8.8, nameserver1=192.168.1.1
  229. [ 12.786289] VFS: Mounted root (nfs filesystem) on device 0:15.
  230. [ 12.792519] devtmpfs: mounted
  231. [ 12.795669] Freeing unused kernel memory: 368K (c077c000 - c07d8000)
  232. INIT: version 2.88 booting
  233. Error opening /dev/fb0: No such file or directory
  234. Starting udev
  235. udev: Not using udev cache because of changes detected in the following files:
  236. udev: /proc/version /proc/cmdline /proc/devices
  237. udev: lib/udev/rules.d/* etc/udev/rules.d/*
  238. udev: The udev cache will be regenerated. To identify the detected changes,
  239. udev: compare the cached sysconf at /etc/udev/cache.data
  240. udev: against the current sysconf at /dev/shm/udev.cache
  241. [ 13.162761] udevd[1216]: starting version 182
  242. [ 13.792050] random: dd urandom read with 105 bits of entropy available
  243. Populating dev cache
  244. Sun Jan 24 06:52:09 UTC 2016
  245. INIT: Entering runlevel: 5
  246. NOT configuring network interfaces: / is an NFS mount
  247. [ 14.179882] random: nonblocking pool is initialized
  248. Starting system message bus: dbus.
  249. Starting telnet daemon.
  250. Starting rpcbind daemon...done.
  251. starting statd: done
  252. Starting syslogd/klogd: done
  253. Starting thttpd.
  254. Enabling thermal zones...
  255. /etc/rc5.d/S98thermal-zone-init: line 7: /sys/class/thermal/thermal_zone*/mode: No such file or directory
  256.  
  257. _____ _____ _ _
  258. | _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_
  259. | | _| .'| . | . | | __| _| . | | | -_| _| _|
  260. |__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_|
  261. |___| |___|
  262.  
  263. Arago Project http://arago-project.org k2hk-evm /dev/ttyS0
  264.  
  265. Arago 2015.12 k2hk-evm /dev/ttyS0
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!