[Bug 12621] New: busybox syslog missing a lot of kernel messages when kernel bootup（compare with serial port outputs or dmesg outputs）
bugzilla at busybox.net
bugzilla at busybox.net
Mon Mar 9 06:47:20 UTC 2020
https://bugs.busybox.net/show_bug.cgi?id=12621
Bug ID: 12621
Summary: busybox syslog missing a lot of kernel messages when
kernel bootup（compare with serial port outputs or
dmesg outputs）
Product: Busybox
Version: 1.22.x
Hardware: Other
OS: Other
Status: NEW
Severity: normal
Priority: P5
Component: Other
Assignee: unassigned at busybox.net
Reporter: 1204539207 at qq.com
CC: busybox-cvs at busybox.net
Target Milestone: ---
I'm using busybox-1.22.1 on an embedded system running Linux kernel 3.10.34.
The system is openwrt and the cpu architecture is MIPS 1004Kc V2.15（Soc：MTK
7621A）.
I check the system.log file and find it has less logs then serial port or dmesg
outputs, below I'll list the output：
1. logs in system.log
2020.03.03-16:29:16 info syslogd started: BusyBox v1.22.1
2020.03.03-16:29:16 notice kernel: [ 0.000000] Linux version 3.10.34
(yanai.wang at localhost.localdomain) (gcc version 4.8.3 (OpenWrt/Linaro GCC
4.8-2014.04 r288) ) #1 SMP Mon Mar 2 12:28
2020.03.03-16:29:16 info kernel: [ 0.000000] SoC Type: Mediatek MT7621
ver:1 eco:3
2020.03.03-16:29:16 info kernel: [ 0.000000] bootconsole [early0] enabled
2020.03.03-16:29:16 info kernel: [ 0.000000] CPU revision is: 0001992f
(MIPS 1004Kc)
2020.03.03-16:29:16 info kernel: [ 0.000000] MIPS: machine is WiTown board
2020.03.03-16:29:16 info kernel: [ 0.000000] Determined physical RAM map:
2020.03.03-16:29:16 info kernel: [ 0.000000] memory: 10000000 @ 00000000
(usable)
2020.03.03-16:29:16 info kernel: [ 0.000000] Initrd not found or empty -
disabling initrd
2020.03.03-16:29:16 warn kernel: [ 0.000000] Zone ranges:
2020.03.03-16:29:16 warn kernel: [ 0.000000] Normal [mem
0x00000000-0x0fffffff]
2020.03.04-10:17:19 warn kernel: [ 0.000000] Movable zone start for each
node
2020.03.04-10:17:19 info kernel: [ 1.970000] pci 0000:00:01.0: BAR 9:
assigned [mem 0x60200000-0x602fffff pref]
2020.03.04-10:17:19 warn kernel: [ 2.710000] FM_OUT value: u4FmOut =
0(0x00000000)
2020.03.04-10:17:19 info kernel: [ 9.470000] xt_time: kernel timezone is
-0000
2020.03.04-10:17:19 emerg syslog: ls: /etc/log/crashlog.*: No such file or
directory
2020.03.04-10:17:21 notice netifd: netifd start ...
2020.03.04-10:17:21 warn kernel: [ 14.320000] raeth: HW IP/TCP/UDP checksum
RX/TX offload enabled
2020.03.04-10:17:21 warn kernel: [ 14.330000] raeth: HW VLAN RX offload
enabled
2020.03.04-10:17:21 warn kernel: [ 14.340000] raeth: HW Scatter/Gather TX
offload enabled
2020.03.04-10:17:21 warn kernel: [ 14.350000] raeth: HW TCP segmentation
offload (TSO) enabled
2020.03.04-10:17:21 warn kernel: [ 14.360000] mtk_esw - hw bridge: W|LLLL
2020.03.04-10:17:21 info kernel: [ 14.380000] device eth0.1 entered
promiscuous mode
2020.03.04-10:17:21 info kernel: [ 14.390000] device eth0 entered
promiscuous mode
2020.03.04-10:17:21 info kernel: [ 14.400000] br-lan: port 1(eth0.1)
entered forwarding state
2020.03.04-10:17:21 info kernel: [ 14.410000] br-lan: port 1(eth0.1)
entered forwarding state
2. logs on serial port （too long and I just pick some of them）
[ 0.000000] Linux version 3.10.34 (yanai.wang at localhost.localdomain) (gcc
version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r288) ) #1 SMP Mon Mar 2 12:28:24
CST 2020
[ 0.000000] SoC Type: Mediatek MT7621 ver:1 eco:3
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU revision is: 0001992f (MIPS 1004Kc)
[ 0.000000] MIPS: machine is WiTown board
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 10000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00000000-0x0fffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00000000-0x0fffffff] #these logs below
can't be seen in system.log reboot everytime
[ 0.000000] Detected 3 available secondary CPU(s)
[ 0.000000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32
bytes
[ 0.000000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.000000] PERCPU: Embedded 7 pages/cpu @81207000 s6656 r8192 d13824 u32768
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total
pages: 65024
[ 0.000000] Kernel command line: boot_firmware=1 console=ttyS0,57600
rootfstype=squashfs,jffs2
[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Writing ErrCtl register=00031010
[ 0.000000] Readback ErrCtl register=00031010
[ 0.000000] Memory: 255796k/262144k available (2825k kernel code, 6348k
reserved, 675k data, 204k init, 0k highmem)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] Hierarchical RCU implementation.
[ 0.000000] NR_IRQS:256
[ 0.000000] gic: revision 3.0
[ 0.000000] CPU Clock: 880MHz
[ 0.000000] Calibrating delay loop... 577.53 BogoMIPS (lpj=2887680)
[ 0.050000] pid_max: default: 32768 minimum: 301
[ 0.060000] Mount-cache hash table entries: 512
[ 0.070000] CPU revision is: 0001992f (MIPS 1004Kc)
[ 0.070000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.070000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32
bytes
[ 0.070000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.140000] Synchronize counters for CPU 1: done.
[ 0.150000] CPU revision is: 0001992f (MIPS 1004Kc)
[ 0.150000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.150000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32
bytes
[ 0.150000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.220000] Synchronize counters for CPU 2: done.
[ 0.230000] CPU revision is: 0001992f (MIPS 1004Kc)
[ 0.230000] Primary instruction cache 32kB, VIPT, 4-way, linesize 32 bytes.
[ 0.230000] Primary data cache 32kB, 4-way, PIPT, no aliases, linesize 32
bytes
[ 0.230000] MIPS secondary cache 256kB, 8-way, linesize 32 bytes.
[ 0.300000] Synchronize counters for CPU 3: done.
[ 0.310000] Brought up 4 CPUs
[ 0.310000] pinctrl core: initialized pinctrl subsystem
[ 0.320000] NET: Registered protocol family 16
[ 0.320000] witown_netlink_init init witown netlink type WI_NETLINK_WITOWN !
[ 0.330000] release PCIe RST: RALINK_RSTCTRL = 7000000
[ 0.340000] ***** Xtal 40MHz *****
[ 0.340000] pull PCIe RST: RALINK_RSTCTRL = 6000000
[ 0.640000] release PCIe RST: RALINK_RSTCTRL = 7000000
[ 0.650000] Port 0 N_FTS = 1b105000
[ 0.650000] Port 1 N_FTS = 1b105000
[ 0.660000] Port 2 N_FTS = 1b105000
[ 1.790000] PCIE2 no card, disable it(RST&CLK)
[ 1.800000] -> 21007f2
[ 1.800000] PCIE0 enabled
[ 1.810000] PCIE1 enabled
[ 1.820000] bio: create slab <bio-0> at 0
[ 1.830000] mt7621_gpio 1e000600.gpio: registering 32 gpios
[ 1.840000] mt7621_gpio 1e000600.gpio: registering 32 gpios
[ 1.850000] mt7621_gpio 1e000600.gpio: registering 32 gpios
[ 1.860000] usbcore: registered new interface driver usbfs
[ 1.870000] usbcore: registered new interface driver hub
[ 1.880000] usbcore: registered new device driver usb
[ 1.900000] PCI host bridge to bus 0000:00
[ 1.900000] pci_bus 0000:00: root bus resource [mem 0x60000000-0x6fffffff]
[ 1.920000] pci_bus 0000:00: root bus resource [io 0x1e160000-0x1e16ffff]
[ 1.930000] pci_bus 0000:00: No busn resource found for root bus, will use
[bus 00-ff]
[ 1.950000] pci 0000:00:00.0: BAR 0: can't assign mem (size 0x80000000)
[ 1.960000] pci 0000:00:01.0: BAR 0: can't assign mem (size 0x80000000)
[ 1.970000] pci 0000:00:00.0: BAR 8: assigned [mem 0x60000000-0x600fffff]
[ 1.990000] pci 0000:00:01.0: BAR 8: assigned [mem 0x60100000-0x601fffff]
[ 2.000000] pci 0000:00:01.0: BAR 9: assigned [mem 0x60200000-0x602fffff
pref]
[ 2.020000] pci 0000:00:00.0: BAR 1: assigned [mem 0x60300000-0x6030ffff]
[ 2.030000] pci 0000:00:01.0: BAR 1: assigned [mem 0x60310000-0x6031ffff]
[ 2.040000] pci 0000:01:00.0: BAR 0: assigned [mem 0x60000000-0x600fffff]
[ 2.060000] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 2.070000] pci 0000:00:00.0: bridge window [mem 0x60000000-0x600fffff]
[ 2.080000] pci 0000:02:00.0: BAR 0: assigned [mem 0x60100000-0x601fffff
64bit]
[ 2.090000] pci 0000:02:00.0: BAR 6: assigned [mem 0x60200000-0x6020ffff
pref]
[ 2.110000] pci 0000:00:01.0: PCI bridge to [bus 02]
[ 2.120000] pci 0000:00:01.0: bridge window [mem 0x60100000-0x601fffff]
[ 2.130000] pci 0000:00:01.0: bridge window [mem 0x60200000-0x602fffff
pref]
[ 2.150000] BAR0 at slot 0 = 0
[ 2.150000] bus=0x0, slot = 0x0
[ 2.160000] BAR0 at slot 1 = 0
[ 2.160000] bus=0x0, slot = 0x1
[ 2.170000] bus=0x1, slot = 0x0, irq=0xff
[ 2.180000] bus=0x2, slot = 0x1, irq=0xff
[ 2.190000] Switching to clocksource MIPS
[ 2.200000] NET: Registered protocol family 2
[ 2.220000] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
[ 2.230000] TCP bind hash table entries: 2048 (order: 2, 16384 bytes)
[ 2.240000] TCP: Hash tables configured (established 2048 bind 2048)
[ 2.260000] TCP: reno registered
[ 2.260000] UDP hash table entries: 256 (order: 1, 8192 bytes)
[ 2.270000] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[ 2.290000] NET: Registered protocol family 1
[ 2.310000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 2.320000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME)
(CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 2.340000] msgmni has been set to 499
[ 2.350000] io scheduler noop registered
[ 2.350000] io scheduler deadline registered (default)
[ 2.370000] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[ 2.380000] 1e000c00.uartlite: ttyS0 at MMIO 0x1e000c00 (irq = 34) is a
16550A
[ 2.390000] console [ttyS0] enabled, bootconsole disabled
[ 2.390000] console [ttyS0] enabled, bootconsole disabled
[ 2.420000] flash manufacture id: c2, device id 20 19
[ 2.430000] MX25L25635E(c2 2019c220) (32768 Kbytes)
[ 2.440000] mtd .name = raspi, .size = 0x02000000 (32M) .erasesize =
0x00010000 (64K) .numeraseregions = 0
[ 2.460000] Creating 9 MTD partitions on "raspi":
[ 2.470000] 0x000000000000-0x000000030000 : "u-boot"
[ 2.480000] 0x000000030000-0x000000040000 : "u-boot-env"
[ 2.490000] 0x000000040000-0x000000050000 : "factory"
[ 2.500000] 0x000000050000-0x000000b50000 : "firmware1"
[ 2.510000] 0x000000180222-0x000000b50000 : "rootfs"
[ 2.520000] mtd: partition "rootfs" must either start or end on erase block
boundary or be smaller than an erase block -- forcing read-only
[ 2.550000] mtd: device 4 (rootfs) set to be root filesystem
[ 2.560000] 0x000000b50000-0x000001650000 : "firmware2"
[ 2.570000] 0x000001650000-0x000001ad0000 : "rootfs_data"
[ 2.580000] 0x000001ad0000-0x000001fd0000 : "cloud"
[ 2.590000] 0x000001fd0000-0x000001ff0000 : "Reserve"
[ 2.600000] 0x000001ff0000-0x000002000000 : "Buginfo"
[ 2.620000] Ralink APSoC Ethernet Driver v3.2.4 (raeth)
[ 2.630000] raeth: PDMA RX ring 512, PDMA TX ring 256. Max packet size 1536
3. my busybox syslog setting
see attachment
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