initramfs Run /init

kongxin · October 12, 2021 at 10:24 AM

Hi，I used a different version of the kernel, but it got stuck when it finally started init, which is the init program for initramfs, and the console just said it couldn't operate.

log：

[ 1.973467] Freeing unused kernel memory: 3648K

[ 1.985519] Run /init as init process

---------------------------------------------------------------------

I added some printing information at the beginning of the init program of initramfs, the kernel did not print, so I think the kernel did not run to init, but the kernel did not report an error, I don't know where the problem is! Can you give me some hints?

**chewitt** · October 12, 2021 at 8:14 PM

Quote from kongxin

Can you give me some hints?

Hardware? .. what LE image? .. what exactly did you change, and why are you building different versions of the kernel. Our crystal ball is not working this week. Add details please.

kongxin · October 13, 2021 at 2:12 AM

Quote from chewitt

Hardware? .. what LE image? .. what exactly did you change, and why are you building different versions of the kernel. Our crystal ball is not working this week. Add details please.

Hi,I want to port TV to a new chip platform, which is not fully supported by the Linux mainline kernel, so I use the kernel provided by the chip manufacturer.

log:

Code

[    1.368114] mmc1: new ultra high speed SDR104 SDHC card at address aaaa
[    1.369154] mmcblk1: mmc1:aaaa SC16G 14.8 GiB
[    1.375483] gc2093 4-007e: i2c read failed at addr: 3f0
[    1.375499] GPT:Primary header thinks Alt. header is not at the end of the disk.
[    1.375536] GPT:1148927 != 31116287
[    1.375547] GPT:Alternate GPT header not at the end of the disk.
[    1.375559] GPT:1148927 != 31116287
[    1.375568] GPT: Use GNU Parted to correct GPT errors.
[    1.375617]  mmcblk1: p1 p2 p3
[    1.375717] gc2093 4-007e: i2c read failed at addr: 3f1
[    1.375744] gc2093 4-007e: Failed to read sensor id, (-6)
[    1.377559] Loading compiled-in X.509 certificates
[    1.378080] pstore: Using compression: deflate
[    1.379060] rga2: Driver loaded successfully ver:3.2.63318
[    1.379436] rga2: Module initialized.
[    1.379554] mmc_host mmc3: Bus speed (slot 0) = 50000000Hz (slot req 100000000Hz, actual 50000000HZ div = 0)
[    1.387889] hub 5-1:1.0: USB hub found
[    1.388206] hub 5-1:1.0: 4 ports detected
[    1.390972] dwmmc_rockchip fe000000.dwmmc: Successfully tuned phase to 359
[    1.393328] mmc3: new ultra high speed SDR104 SDIO card at address 0001
[    1.411622] mpp_rkvenc fdf40000.rkvenc: probing start
[    1.412266] mpp_rkvenc fdf40000.rkvenc: Linked as a consumer to regulator.20
[    1.412308] mpp_rkvenc fdf40000.rkvenc: Failed to get leakage
[    1.412367] mpp_rkvenc fdf40000.rkvenc: pvtm = 89209, form pvtm_value
[    1.412392] mpp_rkvenc fdf40000.rkvenc: pvtm-volt-sel=1
[    1.412563] mpp_rkvenc fdf40000.rkvenc: avs=0
[    1.412898] mpp_rkvenc fdf40000.rkvenc: failed to find power_model node
[    1.412921] mpp_rkvenc fdf40000.rkvenc: failed to initialize power model
[    1.412939] mpp_rkvenc fdf40000.rkvenc: failed to get dynamic-coefficient
[    1.413351] mpp_rkvenc fdf40000.rkvenc: probing finish
[    1.413891] mali fde60000.gpu: Kernel DDK version g2p0-01eac0
[    1.414060] mali fde60000.gpu: Linked as a consumer to regulator.21
[    1.414204] mali fde60000.gpu: dev_pm_opp_set_regulators: no regulator (shadercores) found: -19
[    1.414297] mali fde60000.gpu: leakage=10
[    1.414709] mali fde60000.gpu: avs=0
[    1.414729] W : [File] : drivers/gpu/arm/bifrost/platform/rk/mali_kbase_config_rk.c; [Line] : 112; [Func] : k.
[    1.415009] mali fde60000.gpu: GPU identified as 0x2 arch 7.4.0 r1p0 status 0
[    1.415098] mali fde60000.gpu: No memory group manager is configured
[    1.415279] rk-pcie 3c0800000.pcie: PCIe Linking... LTSSM is 0x0
[    1.415493] mali fde60000.gpu: l=-2147483648 h=2147483647 hyst=0 l_limit=0 h_limit=0 h_table=0
[    1.416108] mali fde60000.gpu: Probed as mali0
[    1.416531] input: adc-keys as /devices/platform/adc-keys/input/input3
[    1.417942] asoc-simple-card hdmi-sound: i2s-hifi <-> fe400000.i2s mapping ok
[    1.423427] asoc-simple-card rk809-sound: rk817-hifi <-> fe410000.i2s mapping ok
[    1.423474] asoc-simple-card rk809-sound: ASoC: no source widget found for MICBIAS1
[    1.423497] asoc-simple-card rk809-sound: ASoC: Failed to add route MICBIAS1 -> direct -> Mic Jack
[    1.423518] asoc-simple-card rk809-sound: ASoC: no sink widget found for IN1P
[    1.423535] asoc-simple-card rk809-sound: ASoC: Failed to add route Mic Jack -> direct -> IN1P
[    1.423554] asoc-simple-card rk809-sound: ASoC: no source widget found for HPOL
[    1.423573] asoc-simple-card rk809-sound: ASoC: Failed to add route HPOL -> direct -> Headphone Jack
[    1.423593] asoc-simple-card rk809-sound: ASoC: no source widget found for HPOR
[    1.423608] asoc-simple-card rk809-sound: ASoC: Failed to add route HPOR -> direct -> Headphone Jack
[    1.426392] 11wk2xxx_probe: setup mode 0, 8 bits/w, 10000000 Hz max
[    1.455350] usb 6-1: new SuperSpeed Gen 1 USB device number 2 using xhci-hcd
[    1.465339] vendor storage:20190527 ret = 0
[    1.474663] usb 6-1: New USB device found, idVendor=05e3, idProduct=0620, bcdDevice=93.91
[    1.474690] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[    1.474705] usb 6-1: Product: USB3.2 Hub
[    1.474715] usb 6-1: Manufacturer: GenesysLogic
[    1.499712] hub 6-1:1.0: USB hub found
[    1.500041] hub 6-1:1.0: 4 ports detected
[    1.519370] devfreq fde60000.gpu: Couldn't update frequency transition information.
[    1.599975] wk2xxx_serial_init()
[    1.600002] wk2xxx_request_port
[    1.600014] ttysWK0 at I/O 0x1 (irq = 112, base_baud = 460800) is a wk2xxx
[    1.600220] uart_add_one_port success for line i:= 0 with right 0
[    1.600243] wk2xxx_request_port
[    1.600257] ttysWK1 at I/O 0x2 (irq = 112, base_baud = 460800) is a wk2xxx
[    1.600412] uart_add_one_port success for line i:= 1 with right 0
[    1.600433] wk2xxx_request_port
[    1.600449] ttysWK2 at I/O 0x3 (irq = 112, base_baud = 460800) is a wk2xxx
[    1.600595] uart_add_one_port success for line i:= 2 with right 0
[    1.600616] wk2xxx_request_port
[    1.600631] ttysWK3 at I/O 0x4 (irq = 112, base_baud = 460800) is a wk2xxx
[    1.600777] uart_add_one_port success for line i:= 3 with right 0
[    1.600790] uart_add_one_port = 0x0
[    1.601702] register spi return v = :0
[    1.601725] dhd_module_init: in Dongle Host Driver, version 100.10.545.9 (r826445-20200316-8)
[    1.601740] ======== dhd_wlan_init_plat_data ========
[    1.601754] [WLAN_RFKILL]: rockchip_wifi_get_oob_irq: Enter
[    1.601810] dhd_wlan_init_gpio: WL_HOST_WAKE=-1, oob_irq=113, oob_irq_flags=0x414
[    1.601828] dhd_wlan_init_gpio: WL_REG_ON=-1
[    1.601841] dhd_wifi_platform_load: Enter
[    1.601854] Power-up adapter 'DHD generic adapter'
[    1.603341] wifi_platform_set_power = 1, delay: 200 msec
[    1.603374] ======== PULL WL_REG_ON(-1) HIGH! ========
[    1.603385] [WLAN_RFKILL]: rockchip_wifi_power: 1
[    1.603394] [WLAN_RFKILL]: rockchip_wifi_power: toggle = false
[    1.603408] [WLAN_RFKILL]: wifi turn on power [GPIO-1-0]
[    1.908862] wifi_platform_bus_enumerate device present 1
[    1.908967] ======== Card detection to detect SDIO card! ========
[    1.909020] mmc3:mmc host rescan start!
[    1.925219] bcmsdh_register: register client driver
[    1.925405] bcmsdh_sdmmc_probe: Enter num=1
[    1.926108] bcmsdh_sdmmc_probe: Enter num=2
[    1.926128] bus num (host idx)=3, slot num (rca)=1
[    1.926139] found adapter info 'DHD generic adapter'
[    1.926190] sdioh_attach: set sd_f2_blocksize 256
[    1.926238] sdioh_attach: sd clock rate = 0
[    1.926453] dhdsdio_probe : no mutex held. set lock
[    1.926551] F1 signature read @0x18000000=0x1042aae8
[    1.930283] F1 signature OK, socitype:0x1 chip:0xaae8 rev:0x2 pkg:0x4
[    1.930892] DHD: dongle ram size is set to 1310720(orig 1310720) at 0x170000
[    1.930969] [dhd] dhd_conf_set_chiprev : chip=0xaae8, chiprev=2
[    1.931665] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing
[    1.931690] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing
[    1.931708] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing
[    1.931725] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing
[    1.931742] [dhd] CFG80211-ERROR) wl_cfg80211_netdev_notifier_call : wdev null. Do nothing
[    1.932029] dhd_log_dump_init: kernel log buf size = 256KB; logdump_prsrv_tailsize = 80KB; limit prsrv tail sB
[    1.932885] dhd_attach(): thread:dhd_watchdog_thread:70 started
[    1.933038] dhd_attach(): thread:dhd_dpc:71 started
[    1.933189] dhd_attach(): thread:dhd_rxf:72 started
[    1.933210] dhd_deferred_work_init: work queue initialized
[    1.933224] dhd_tcpack_suppress_set: TCP ACK Suppress mode 0 -> mode 2
[    1.933293] get_mem_val_from_file: File [/data/misc/wifi/.memdump.info] doesn't exist
[    1.933313] dhd_get_memdump_info: MEMDUMP ENABLED = 3
[    1.933331] sdioh_cis_read: func_cis_ptr[0]=0x1070
[    1.941929] dhdsdio_probe_init: making DHD_BUS_DOWN
[    1.942086] Dongle Host Driver, version 100.10.545.9 (r826445-20200316-8)
[    1.942504] Register interface [wlan0]  MAC: 10:2c:6b:18:ac:9e
[    1.942504]
[    1.942603] dhd_dbg_detach_pkt_monitor, 2100
[    1.942621] dhd_bus_devreset: == Power OFF ==
[    1.942835] dhd_bus_stop: making DHD_BUS_DOWN
[    1.942877] bcmsdh_oob_intr_unregister: Enter
[    1.942892] bcmsdh_oob_intr_unregister: irq is not registered
[    1.942910] dhd_bus_devreset: making dhdpub up FALSE
[    1.942924] dhd_txglom_enable: enable 0
[    1.942937] dhd_bus_devreset: making DHD_BUS_DOWN
[    1.942952] dhd_bus_devreset:  WLAN OFF DONE
[    1.943001] wifi_platform_set_power = 0, delay: 0 msec
[    1.943019] ======== PULL WL_REG_ON(-1) LOW! ========
[    1.943033] [WLAN_RFKILL]: rockchip_wifi_power: 0
[    1.943056] [WLAN_RFKILL]: rockchip_wifi_power: toggle = false
[    1.943071] [WLAN_RFKILL]: wifi shut off power [GPIO-1-1]
[    1.943087] dhdsdio_probe : the lock is released.
[    1.944039] dhd_module_init: Exit err=0
[    1.944391] ==gsl_ts_init==
[    1.944459] ret=0
[    1.945180] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    1.946276] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    1.946376] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    1.946398] cfg80211: failed to load regulatory.db
[    1.947721] rockchip-pm rockchip-suspend: not set pwm-regulator-config
[    1.949148] I : [File] : drivers/gpu/arm/mali400/mali/linux/mali_kernel_linux.c; [Line] : 413; [Func] : mali_.
[    1.949524] Mali:
[    1.949525] Mali device driver loaded
[    1.949553] rkisp rkisp-vir0: clear unready subdev num: 1
[    1.949571] rockchip-csi2-dphy1: No link between dphy and sensor
[    1.949920] rockchip-csi2-dphy1: No link between dphy and sensor
[    1.949938] rkisp-vir0: update sensor failed
[    1.949956] rkisp rkisp-vir1: clear unready subdev num: 1
[    1.949970] rockchip-csi2-dphy2: No link between dphy and sensor
[    1.950230] rockchip-csi2-dphy2: No link between dphy and sensor
[    1.950248] rkisp-vir1: update sensor failed
[    1.950349] ret 1024 1
[    1.950595] ALSA device list:
[    1.950612]   #0: rockchip,hdmi
[    1.950624]   #1: rockchip,rk809-codec
[    1.953711] Freeing unused kernel memory: 3648K
[    1.971998] Run /init as init process

Display More

**chewitt** · October 13, 2021 at 5:32 AM

The <incomplete> log shows the SoC vendor is Rockchip so I moved the thread, but SoC model is <unknown> and kernel version is <unkown> which means our ability to guess the <unknown> problem is <unknown>. The lack of technical info from you is rather annoying but also rather irrelevant, because your <unknown> hardware probably needs a Rockchip Linux 4.4 vendor kernel? and our codebase is not compatible with Rockchip vendor kernels. It was in the past, but our display and video pipeline is now dependent on modern (upstream/mainline) Linux kernel APIs that legacy kernels do not support. You might be able to frankenstein an LE image to boot and even start Kodi, but there will be no video decoding in hardware which is essential for playback on an ARM SoC device. To get a more useful answer you will need to provide more useful info.

kongxin · October 13, 2021 at 7:23 AM

Quote from chewitt

The <incomplete> log shows the SoC vendor is Rockchip so I moved the thread, but SoC model is <unknown> and kernel version is <unkown> which means our ability to guess the <unknown> problem is <unknown>. The lack of technical info from you is rather annoying but also rather irrelevant, because your <unknown> hardware probably needs a Rockchip Linux 4.4 vendor kernel? and our codebase is not compatible with Rockchip vendor kernels. It was in the past, but our display and video pipeline is now dependent on modern (upstream/mainline) Linux kernel APIs that legacy kernels do not support. You might be able to frankenstein an LE image to boot and even start Kodi, but there will be no video decoding in hardware which is essential for playback on an ARM SoC device. To get a more useful answer you will need to provide more useful info.

Sorry, the chip is rk3568 and the kernel version is 4.19. If the problem is caused by the low kernel version, I have to wait for Rockchip to add the mainline kernel. I used kernel 5.10 to boot the tv system in rk3568. Although the system can be used, npu and hdmi cannot be used, so I changed the kernel.

**chewitt** · October 13, 2021 at 2:20 PM

Linux 4.19 is less-worse than 4.4 but the underlying issue is the same; userspace apps like Kodi and FFMpeg (and g-streamer, not that LE uses it) are evolved around V4L2 kernel APIs and code that simply does not support the vendor kernels. The good thing is - Rockchip has numerous corporate backers funding upstreaming development for chipsets like RK3568 so support is being actively worked on and is starting to land in mailing lists .. and as long as that work follows standards (which it is/does/will-continue-to-do) creating an LE image in the future should be fairly simple.

kongxin · October 14, 2021 at 2:31 AM

Quote from chewitt

Linux 4.19 is less-worse than 4.4 but the underlying issue is the same; userspace apps like Kodi and FFMpeg (and g-streamer, not that LE uses it) are evolved around V4L2 kernel APIs and code that simply does not support the vendor kernels. The good thing is - Rockchip has numerous corporate backers funding upstreaming development for chipsets like RK3568 so support is being actively worked on and is starting to land in mailing lists .. and as long as that work follows standards (which it is/does/will-continue-to-do) creating an LE image in the future should be fairly simple.

Yes, if the mainline kernel fully supports rk3568, then creating LE image is easy. Before I added rk3568 to the 5.10 kernel, and using the LE image created by it, I found a problem with the npu driver and drm, and everything else was fine. Maybe I should wait for rockchip, although the speed is a bit slow.

**heitbaum** · October 14, 2021 at 10:02 AM

kongxin You will want to use kernel head and uboot head for the 3568 - there is development being done but on the “edge” - lkml and denx mailing lists have regular patches.

kongxin · October 14, 2021 at 11:00 AM

Quote from heitbaum

kongxin You will want to use kernel head and uboot head for the 3568 - there is development being done but on the “edge” - lkml and denx mailing lists have regular patches.

I don’t quite understand what you mean. I don’t see what I want on the kernel patch list, such as npu, vop driver, etc. I have run TV system on rk3568 as early as two months ago, but npu and vop driver There is a problem, which prevents me from using hdmi and npu. So I replaced it with a 4.19 kernel with full support for rk3568. As you can see, the kernel freezes when the init program of the initramfs is booted. For this reason, I have used the initramfs of other chips, replaced the interpreted scripts, and compiled busybox statically. The problem remains. I have to change the kernel back and continue to wait for Rockchip to support rk3568.

**heitbaum** · October 14, 2021 at 11:59 AM

You can set boot debug and alter init to review what is failing. E.g. https://github.com/heitbaum/Libre…1235eb9963fe106 but as chewitt points out unless the kernel you use has support for V4L2 Kodi may display, but any video decode won’t succeed. I have a number of similar issues as you are describing with some SoCs - rk3399pro, h616, rk3568, d1 (even Intel TGL) - all falling into the category of either too new or not yet fully mainlined - but I continue to test and upstream support for these.

kongxin · October 15, 2021 at 2:38 AM

Quote from heitbaum

You can set boot debug and alter init to review what is failing. E.g. https://github.com/heitbaum/Libre…1235eb9963fe106 but as chewitt points out unless the kernel you use has support for V4L2 Kodi may display, but any video decode won’t succeed. I have a number of similar issues as you are describing with some SoCs - rk3399pro, h616, rk3568, d1 (even Intel TGL) - all falling into the category of either too new or not yet fully mainlined - but I continue to test and upstream support for these.

Thank you, your patch is very useful.

**chewitt** · October 16, 2021 at 3:53 AM

I don;t know what IP is used for NPU in RK chips but in general NPU drivers are often a challenge to upstream due to NDAs and restrictions on the SDKs from the IP owners.

**heitbaum** · October 16, 2021 at 4:44 AM

As fyi the Radxa n10c rk3399pro has the npu connected via USB3 and the interface to the npu is https://github.com/rockchip-linux/rknn-toolkit the NPU is actually a discreet A35 cpu rk1808 https://wiki.radxa.com/RockpiN10/dev/NPU-booting - https://www.cnx-software.com/2018/09/24/roc…ils-rk1808-npu/ and there are a bunch of hacks in place to startup the npu using sysfs which don’t convert well into mainline. If you connect to the rk1808 uart on the n10c board, you can actually see the (blob npu kernel boot on the rk1808) I haven’t spent much time on the n10c or my P2 in recent times.