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Message-ID: <CAK7LNARtm_2uT3nbga4X0dMYs9jhKa8a2FTGJrYbVRg8P3vHQw@mail.gmail.com> Date: Thu, 28 Jul 2016 11:08:13 +0900 From: Masahiro Yamada <yamada.masahiro@...ionext.com> To: Arnd Bergmann <arnd@...db.de> Cc: Peter Hurley <peter@...leysoftware.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>, linux-serial@...r.kernel.org, linux-arm-kernel <linux-arm-kernel@...ts.infradead.org> Subject: Re: debug tip after earlycon is closed? Hi Arnd, 2016-07-27 16:32 GMT+09:00 Arnd Bergmann <arnd@...db.de>: > On Wednesday, July 27, 2016 10:23:09 AM CEST Masahiro Yamada wrote: >> [ 0.000004] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps >> every 4398046511100ns >> [ 0.008254] Console: colour dummy device 80x25 >> [ 0.012700] console [tty0] enabled >> [ 0.016110] bootconsole [uniphier0] disabled > > I assume that the original console is on a uart, while the new console > appears to be on the framebuffer. Maybe you have no screen attached? > I use 8250-compat serial console for both. The following is the full boot log when success. I am not sure about: [ 0.000141] Console: colour dummy device 80x25 [ 0.000550] console [tty0] enabled This is the UART console I am really using. [ 0.234743] 54006800.serial: ttyS0 at MMIO 0x54006800 (irq = 6, base_baud = 3676470) is a 16550A [ 0.994393] console [ttyS0] enabled Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.7.0-01675-g8f09d9b (yamada@...gle) (gcc version 4.9.4 20151028 (prerelease) (Linaro GCC 4.9-2016.02) ) #24 SMP PREEMPT Wed Jul 27 14:36:30 JST 2016 [ 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] percpu: Embedded 21 pages/cpu @ffff8000bff7c000 s48128 r8192 d29696 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] log_buf_len individual max cpu contribution: 4096 bytes [ 0.000000] log_buf_len total cpu_extra contributions: 12288 bytes [ 0.000000] log_buf_len min size: 16384 bytes [ 0.000000] log_buf_len: 32768 bytes [ 0.000000] early log buf free: 15036(91%) [ 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: 2993196K/3145728K available (7516K kernel code, 647K rwdata, 3168K rodata, 960K init, 259K bss, 136148K 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 - 0xffff0000087d0000 ( 7488 KB) [ 0.000000] .rodata : 0xffff0000087d0000 - 0xffff000008af0000 ( 3200 KB) [ 0.000000] .init : 0xffff000008af0000 - 0xffff000008be0000 ( 960 KB) [ 0.000000] .data : 0xffff000008be0000 - 0xffff000008c81e00 ( 648 KB) [ 0.000000] .bss : 0xffff000008c81e00 - 0xffff000008cc2d40 ( 260 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: GIC: Using split EOI/Deactivate mode [ 0.000000] GICv3: CPU0: found redistributor 0 region 0:0x000000005fe80000 [ 0.000000] Architected cp15 timer(s) running at 50.00MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0xb8812736b, max_idle_ns: 440795202655 ns [ 0.000003] sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every 4398046511100ns [ 0.000141] Console: colour dummy device 80x25 [ 0.000550] console [tty0] enabled [ 0.000570] Calibrating delay loop (skipped), value calculated using timer frequency.. 100.00 BogoMIPS (lpj=200000) [ 0.000591] pid_max: default: 32768 minimum: 301 [ 0.000640] Security Framework initialized [ 0.000673] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.000686] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.001509] ASID allocator initialised with 65536 entries [ 0.024202] EFI services will not be available. [ 0.048076] Detected PIPT I-cache on CPU1 [ 0.048097] GICv3: CPU1: found redistributor 1 region 0:0x000000005fea0000 [ 0.048113] CPU1: Booted secondary processor [410fd082] [ 0.064093] Detected VIPT I-cache on CPU2 [ 0.064098] CPU features: enabling workaround for ARM erratum 845719 [ 0.064117] GICv3: CPU2: found redistributor 100 region 0:0x000000005fec0000 [ 0.064141] CPU2: Booted secondary processor [410fd034] [ 0.080107] Detected VIPT I-cache on CPU3 [ 0.080120] GICv3: CPU3: found redistributor 101 region 0:0x000000005fee0000 [ 0.080133] CPU3: Booted secondary processor [410fd034] [ 0.080206] Brought up 4 CPUs [ 0.080306] SMP: Total of 4 processors activated. [ 0.080318] CPU features: detected feature: GIC system register CPU interface [ 0.080330] CPU features: detected feature: 32-bit EL0 Support [ 0.080346] CPU: All CPU(s) started at EL2 [ 0.080375] alternatives: patching kernel code [ 0.081358] devtmpfs: initialized [ 0.082795] DMI not present or invalid. [ 0.082921] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.083246] pinctrl core: initialized pinctrl subsystem [ 0.083974] NET: Registered protocol family 16 [ 0.100145] cpuidle: using governor menu [ 0.100188] vdso: 2 pages (1 code @ ffff0000087d6000, 1 data @ ffff000008be4000) [ 0.100216] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.100746] DMA: preallocated 256 KiB pool for atomic allocations [ 0.100868] Serial: AMBA PL011 UART driver [ 0.124480] HugeTLB registered 2 MB page size, pre-allocated 0 pages [ 0.125003] ACPI: Interpreter disabled. [ 0.125414] vgaarb: loaded [ 0.125584] SCSI subsystem initialized [ 0.125833] usbcore: registered new interface driver usbfs [ 0.125876] usbcore: registered new interface driver hub [ 0.125914] usbcore: registered new device driver usb [ 0.126131] pps_core: LinuxPPS API ver. 1 registered [ 0.126143] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@...ux.it> [ 0.126172] PTP clock support registered [ 0.126258] dmi: Firmware registration failed. [ 0.126304] Advanced Linux Sound Architecture Driver Initialized. [ 0.126759] clocksource: Switched to clocksource arch_sys_counter [ 0.126843] VFS: Disk quotas dquot_6.6.0 [ 0.126883] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.127052] pnp: PnP ACPI: disabled [ 0.132866] NET: Registered protocol family 2 [ 0.133387] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.133694] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.134262] TCP: Hash tables configured (established 32768 bind 32768) [ 0.134351] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.134447] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.134664] NET: Registered protocol family 1 [ 0.134888] RPC: Registered named UNIX socket transport module. [ 0.134906] RPC: Registered udp transport module. [ 0.134921] RPC: Registered tcp transport module. [ 0.134935] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.135130] Unpacking initramfs... [ 0.211416] Freeing initrd memory: 1708K (ffff80001fe54000 - ffff80001ffff000) [ 0.212279] kvm [1]: 8-bit VMID [ 0.212295] kvm [1]: Hyp mode initialized successfully [ 0.212333] kvm [1]: GICv3: no GICV resource entry [ 0.212348] kvm [1]: disabling GICv2 emulation [ 0.212397] kvm [1]: vgic interrupt IRQ1 [ 0.212501] kvm [1]: virtual timer IRQ4 [ 0.214016] futex hash table entries: 1024 (order: 5, 131072 bytes) [ 0.214112] audit: initializing netlink subsys (disabled) [ 0.214163] audit: type=2000 audit(0.208:1): initialized [ 0.214514] workingset: timestamp_bits=44 max_order=20 bucket_order=0 [ 0.222932] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.223636] NFS: Registering the id_resolver key type [ 0.223686] Key type id_resolver registered [ 0.223701] Key type id_legacy registered [ 0.223874] fuse init (API version 7.25) [ 0.224265] 9p: Installing v9fs 9p2000 file system support [ 0.226426] io scheduler noop registered [ 0.226559] io scheduler cfq registered (default) [ 0.226872] uniphier-system-bus 58c00000.system-bus: could not find pctldev for node /soc/soc-glue@...00000/pinctrl/system_bus_grp, deferring probe [ 0.230392] xenfs: not registering filesystem on non-xen platform [ 0.233387] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled [ 0.234743] 54006800.serial: ttyS0 at MMIO 0x54006800 (irq = 6, base_baud = 3676470) is a 16550A [ 0.994393] console [ttyS0] enabled [ 0.998261] SuperH (H)SCI(F) driver initialized [ 1.003021] msm_serial: driver initialized [ 1.007444] Unable to detect cache hierarchy from DT for CPU 0 [ 1.017234] loop: module loaded [ 1.021818] tun: Universal TUN/TAP device driver, 1.6 [ 1.026910] tun: (C) 1999-2004 Max Krasnyansky <maxk@...lcomm.com> [ 1.033392] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k [ 1.039259] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. [ 1.045248] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k [ 1.052240] igb: Copyright (c) 2007-2014 Intel Corporation. [ 1.057873] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.0.2-k [ 1.065748] igbvf: Copyright (c) 2009 - 2012 Intel Corporation. [ 1.071734] sky2: driver version 1.30 [ 1.075722] VFIO - User Level meta-driver version: 0.3 [ 1.082416] uniphier-dwc3 65b00000.usb: Failed to map clock register [ 1.100499] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.107086] ehci-pci: EHCI PCI platform driver [ 1.111591] ehci-platform: EHCI generic platform driver [ 1.116901] ehci-msm: Qualcomm On-Chip EHCI Host Controller [ 1.122542] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 1.128758] ohci-pci: OHCI PCI platform driver [ 1.133264] ohci-platform: OHCI generic platform driver [ 1.138694] xhci-hcd: probe of xhci-hcd.0.auto failed with error -5 [ 1.145064] usbcore: registered new interface driver usb-storage [ 1.151795] mousedev: PS/2 mouse device common for all mice [ 1.157926] i2c /dev entries driver [ 1.163385] sdhci: Secure Digital Host Controller Interface driver [ 1.169600] sdhci: Copyright(c) Pierre Ossman [ 1.174007] Synopsys Designware Multimedia Card Interface Driver [ 1.180271] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.230787] mmc0: SDHCI controller on 5a000200.sdhc [5a000200.sdhc] using ADMA 64-bit [ 1.239009] ledtrig-cpu: registered to indicate activity on CPUs [ 1.247106] usbcore: registered new interface driver usbhid [ 1.252715] usbhid: USB HID core driver [ 1.257593] NET: Registered protocol family 17 [ 1.262173] 9pnet: Installing 9P2000 support [ 1.266555] Key type dns_resolver registered [ 1.271253] registered taskstats version 1 [ 1.280365] 43f00000.ethernet supply vdd33a not found, using dummy regulator [ 1.287478] 43f00000.ethernet supply vddvario not found, using dummy regulator [ 1.321295] libphy: smsc911x-mdio: probed [ 1.335238] mmc0: new high speed MMC card at address 0001 [ 1.341056] mmcblk0: mmc0:0001 H4G2a 3.64 GiB [ 1.345810] mmcblk0boot0: mmc0:0001 H4G2a partition 1 4.00 MiB [ 1.351897] mmcblk0boot1: mmc0:0001 H4G2a partition 2 4.00 MiB [ 1.357964] mmcblk0rpmb: mmc0:0001 H4G2a partition 3 4.00 MiB [ 1.394910] Generic PHY 43f00000.etherne:01: attached PHY driver [Generic PHY] (mii_bus:phy_addr=43f00000.etherne:01, irq=-1) [ 1.406518] smsc911x 43f00000.ethernet eth0: MAC Address: 7a:a5:8c:dc:ff:3e [ 1.413700] hctosys: unable to open rtc device (rtc0) [ 1.418919] ALSA device list: [ 1.421893] No soundcards found. [ 1.425968] Freeing unused kernel memory: 960K (ffff800000af0000 - ffff800000be0000) Starting logging: OK Initializing random number generator... [ 1.467525] random: dd urandom read with 1 bits of entropy available done. Starting network... Welcome to Buildroot buildroot login: -- Best Regards Masahiro Yamada
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