Hi.
Today, I noticed Linux fails to mount initramdisk on my boards.
I found I could solve the issue by reverting the following commit:
commit c2e7e72bb9f0cb47d024997b381cb64786eb5402 Author: Rick Altherr raltherr@google.com Date: Wed Jan 18 17:12:24 2017 -0800
bootm: relocate ramdisk if CONFIG_SYS_BOOT_RAMDISK_HIGH set
I have not figured out the detail yet.
The boot log is like this:
## Loading init Ramdisk from Legacy Image at 84a00000 ... Image Name: Created: 2017-01-23 7:35:51 UTC Image Type: AArch64 Linux RAMDisk Image (uncompressed) Data Size: 5081407 Bytes = 4.8 MiB Load Address: 00000000 Entry Point: 00000000 ## Flattened Device Tree blob at 84100000 Booting using the fdt blob at 0x84100000 reserving fdt memory region: addr=80000000 size=80000 Loading Device Tree to 000000009fffa000, end 000000009ffff982 ... OK Reserved memory region for DRAM PHY training: addr=bfffffc0 size=40 Reserved memory region for DRAM PHY training: addr=ffffffc0 size=40 Reserved memory region for DRAM PHY training: addr=13fffffc0 size=40
Starting kernel ...
[ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.10.0-rc5-00088-ge917eee (masahiro@pug) (gcc version 6.1.1 20160711 (Linaro GCC 6.1-2016.08) ) #5 SMP PREEMPT Mon Jan 23 16:22:34 JST 2017 [ 0.000000] Boot CPU: AArch64 Processor [410fd082] [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 16 MiB at 0x00000000fec00000 [ 0.000000] psci: probing for conduit method from DT. [ 0.000000] psci: PSCIv1.0 detected in firmware. [ 0.000000] psci: Using standard PSCI v0.2 function IDs [ 0.000000] psci: MIGRATE_INFO_TYPE not supported. [ 0.000000] percpu: Embedded 21 pages/cpu @ffff8000bff8d000 s48024 r8192 d29800 u86016 [ 0.000000] Detected PIPT I-cache on CPU0 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 774144 [ 0.000000] Kernel command line: [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.000000] software IO TLB [mem 0xfac00000-0xfec00000] (64MB) mapped at [ffff80007ac00000-ffff80007ebfffff] [ 0.000000] Memory: 2992016K/3145728K available (8700K kernel code, 950K rwdata, 3896K rodata, 1024K init, 392K bss, 137328K reserved, 16384K cma-reserved) [ 0.000000] Virtual kernel memory layout: [ 0.000000] modules : 0xffff000000000000 - 0xffff000008000000 ( 128 MB) [ 0.000000] vmalloc : 0xffff000008000000 - 0xffff7dffbfff0000 (129022 GB) [ 0.000000] .text : 0xffff000008080000 - 0xffff000008900000 ( 8704 KB) [ 0.000000] .rodata : 0xffff000008900000 - 0xffff000008ce0000 ( 3968 KB) [ 0.000000] .init : 0xffff000008ce0000 - 0xffff000008de0000 ( 1024 KB) [ 0.000000] .data : 0xffff000008de0000 - 0xffff000008ecda00 ( 951 KB) [ 0.000000] .bss : 0xffff000008ecda00 - 0xffff000008f2fa4c ( 393 KB) [ 0.000000] fixed : 0xffff7dfffe7fd000 - 0xffff7dfffec00000 ( 4108 KB) [ 0.000000] PCI I/O : 0xffff7dfffee00000 - 0xffff7dffffe00000 ( 16 MB) [ 0.000000] vmemmap : 0xffff7e0000000000 - 0xffff800000000000 ( 2048 GB maximum) [ 0.000000] 0xffff7e0000000000 - 0xffff7e0003000000 ( 48 MB actual) [ 0.000000] memory : 0xffff800000000000 - 0xffff8000c0000000 ( 3072 MB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=4. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=4 [ 0.000000] NR_IRQS:64 nr_irqs:64 0 [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x000000005fe80000 [ 0.000000] arm_arch_timer: Architected cp15 timer(s) running at 50.00MHz (virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xb8812736b, max_idle_ns: 440795202655 ns [ 0.000002] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every 4398046511100ns [ 0.000129] Console: colour dummy device 80x25 [ 0.000515] console [tty0] enabled [ 0.000536] Calibrating delay loop (skipped), value calculated using timer frequency.. 100.00 BogoMIPS (lpj=200000) [ 0.000557] pid_max: default: 32768 minimum: 301 [ 0.000602] Security Framework initialized [ 0.000634] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.000647] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.012001] ASID allocator initialised with 65536 entries [ 0.032264] EFI services will not be available. [ 0.048037] smp: Bringing up secondary CPUs ... [ 0.080180] Detected PIPT I-cache on CPU1 [ 0.080206] GICv3: CPU1: found redistributor 1 region 0:0x000000005fea0000 [ 0.080221] CPU1: Booted secondary processor [410fd082] [ 0.112182] CPU features: enabling workaround for ARM erratum 845719 [ 0.112191] Detected VIPT I-cache on CPU2 [ 0.112212] GICv3: CPU2: found redistributor 100 region 0:0x000000005fec0000 [ 0.112232] CPU2: Booted secondary processor [410fd034] [ 0.144216] Detected VIPT I-cache on CPU3 [ 0.144231] GICv3: CPU3: found redistributor 101 region 0:0x000000005fee0000 [ 0.144244] CPU3: Booted secondary processor [410fd034] [ 0.144314] smp: Brought up 1 node, 4 CPUs [ 0.144411] SMP: Total of 4 processors activated. [ 0.144423] CPU features: detected feature: GIC system register CPU interface [ 0.144437] CPU features: detected feature: 32-bit EL0 Support [ 0.144489] CPU: All CPU(s) started at EL1 [ 0.144515] alternatives: patching kernel code [ 0.145367] devtmpfs: initialized [ 0.146916] DMI not present or invalid. [ 0.147051] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.147358] pinctrl core: initialized pinctrl subsystem [ 0.148097] NET: Registered protocol family 16 [ 0.160207] cpuidle: using governor menu [ 0.160334] vdso: 2 pages (1 code @ ffff000008907000, 1 data @ ffff000008de5000) [ 0.160361] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.160984] DMA: preallocated 256 KiB pool for atomic allocations [ 0.161165] Serial: AMBA PL011 UART driver [ 0.185442] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.186105] ACPI: Interpreter disabled. [ 0.186545] vgaarb: loaded [ 0.186725] SCSI subsystem initialized [ 0.187029] usbcore: registered new interface driver usbfs [ 0.187069] usbcore: registered new interface driver hub [ 0.187108] usbcore: registered new device driver usb [ 0.187323] pps_core: LinuxPPS API ver. 1 registered [ 0.187335] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti giometti@linux.it [ 0.187362] PTP clock support registered [ 0.187451] dmi: Firmware registration failed. [ 0.187555] Advanced Linux Sound Architecture Driver Initialized. [ 0.188072] clocksource: Switched to clocksource arch_sys_counter [ 0.188222] VFS: Disk quotas dquot_6.6.0 [ 0.188277] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.188546] pnp: PnP ACPI: disabled [ 0.194220] NET: Registered protocol family 2 [ 0.194632] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.194780] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.195202] TCP: Hash tables configured (established 32768 bind 32768) [ 0.195314] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.195349] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.195470] NET: Registered protocol family 1 [ 0.195709] RPC: Registered named UNIX socket transport module. [ 0.195725] RPC: Registered udp transport module. [ 0.195735] RPC: Registered tcp transport module. [ 0.195745] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.196202] kvm [1]: HYP mode not available [ 0.197160] futex hash table entries: 1024 (order: 5, 131072 bytes) [ 0.197241] audit: initializing netlink subsys (disabled) [ 0.197321] audit: type=2000 audit(0.192:1): initialized [ 0.197624] workingset: timestamp_bits=46 max_order=20 bucket_order=0 [ 0.204954] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.205532] NFS: Registering the id_resolver key type [ 0.205554] Key type id_resolver registered [ 0.205564] Key type id_legacy registered [ 0.205579] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 0.205718] 9p: Installing v9fs 9p2000 file system support [ 0.207288] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) [ 0.207311] io scheduler noop registered [ 0.207467] io scheduler cfq registered (default) [ 0.207781] uniphier-system-bus 58c00000.system-bus: could not find pctldev for node /soc/soc-glue@5f800000/pinctrl/system_bus_grp, deferring probe [ 0.213730] xenfs: not registering filesystem on non-xen platform [ 0.217146] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 0.218519] 54006800.serial: ttyS0 at MMIO 0x54006800 (irq = 6, base_baud = 3676470) is a 16550A [ 0.952684] console [ttyS0] enabled [ 0.956611] SuperH (H)SCI(F) driver initialized [ 0.961385] msm_serial: driver initialized [ 0.965844] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 0.975504] loop: module loaded [ 0.979378] hisi_sas: driver version v1.6 [ 0.985241] libphy: Fixed MDIO Bus: probed [ 0.989862] tun: Universal TUN/TAP device driver, 1.6 [ 0.994931] tun: (C) 1999-2004 Max Krasnyansky maxk@qualcomm.com [ 1.001841] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 1.007692] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 1.013686] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k [ 1.020668] igb: Copyright (c) 2007-2014 Intel Corporation. [ 1.026304] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k [ 1.034165] igbvf: Copyright (c) 2009 - 2012 Intel Corporation. [ 1.040152] sky2: driver version 1.30 [ 1.044204] VFIO - User Level meta-driver version: 0.3 [ 1.050402] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.056960] ehci-pci: EHCI PCI platform driver [ 1.061464] ehci-platform: EHCI generic platform driver [ 1.066771] ehci-exynos: EHCI EXYNOS driver [ 1.071029] ehci-msm: Qualcomm On-Chip EHCI Host Controller [ 1.076678] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 1.082881] ohci-pci: OHCI PCI platform driver [ 1.087390] ohci-platform: OHCI generic platform driver [ 1.092693] ohci-exynos: OHCI EXYNOS driver [ 1.097194] usbcore: registered new interface driver usb-storage [ 1.103922] mousedev: PS/2 mouse device common for all mice [ 1.110350] i2c /dev entries driver [ 1.117644] sdhci: Secure Digital Host Controller Interface driver [ 1.123868] sdhci: Copyright(c) Pierre Ossman [ 1.128434] Synopsys Designware Multimedia Card Interface Driver [ 1.134874] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.184080] mmc0: SDHCI controller on 5a000000.sdhc [5a000000.sdhc] using ADMA 64-bit [ 1.192444] ledtrig-cpu: registered to indicate activity on CPUs [ 1.199357] usbcore: registered new interface driver usbhid [ 1.204962] usbhid: USB HID core driver [ 1.209886] NET: Registered protocol family 17 [ 1.214415] 9pnet: Installing 9P2000 support [ 1.218771] Key type dns_resolver registered [ 1.223349] registered taskstats version 1 [ 1.229380] 43f00000.ethernet supply vdd33a not found, using dummy regulator [ 1.236500] 43f00000.ethernet supply vddvario not found, using dummy regulator [ 1.257111] mmc0: new HS200 MMC card at address 0001 [ 1.262464] mmcblk0: mmc0:0001 004G60 3.69 GiB [ 1.264403] libphy: smsc911x-mdio: probed [ 1.264713] smsc911x 43f00000.ethernet eth0: MAC Address: 36:4c:f1:fe:9e:96 [ 1.264966] hctosys: unable to open rtc device (rtc0) [ 1.265073] ALSA device list: [ 1.265074] No soundcards found. [ 1.289656] mmcblk0boot0: mmc0:0001 004G60 partition 1 2.00 MiB [ 1.295715] mmcblk0boot1: mmc0:0001 004G60 partition 2 2.00 MiB [ 1.301761] mmcblk0rpmb: mmc0:0001 004G60 partition 3 512 KiB [ 1.309224] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6 [ 1.316748] Please append a correct "root=" boot option; here are the available partitions: [ 1.325138] b300 3866624 mmcblk0 [ 1.325141] driver: mmcblk [ 1.331960] b360 512 mmcblk0rpmb [ 1.331962] (driver?) [ 1.338696] b340 2048 mmcblk0boot1 [ 1.338698] (driver?) [ 1.345525] b320 2048 mmcblk0boot0 [ 1.345526] (driver?) [ 1.352348] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 1.360638] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.10.0-rc5-00088-ge917eee #5 [ 1.368224] Hardware name: UniPhier LD20 Reference Board (DT) [ 1.373982] Call trace: [ 1.376440] [<ffff000008088570>] dump_backtrace+0x0/0x238 [ 1.381852] [<ffff0000080887bc>] show_stack+0x14/0x20 [ 1.386919] [<ffff00000838325c>] dump_stack+0x9c/0xc0 [ 1.391985] [<ffff00000816fd04>] panic+0x118/0x280 [ 1.396790] [<ffff000008ce1130>] mount_block_root+0x184/0x25c [ 1.402549] [<ffff000008ce1324>] mount_root+0x11c/0x134 [ 1.407779] [<ffff000008ce1478>] prepare_namespace+0x13c/0x184 [ 1.413621] [<ffff000008ce0d70>] kernel_init_freeable+0x214/0x238 [ 1.419732] [<ffff0000088e0700>] kernel_init+0x10/0x100 [ 1.424971] [<ffff000008082ec0>] ret_from_fork+0x10/0x50 [ 1.430298] SMP: stopping secondary CPUs [ 1.434235] Kernel Offset: disabled [ 1.437728] Memory Limit: none [ 1.440786] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)