Hi, Am 22.02.19 um 03:35 schrieb rosysong@rosinson.com:> Hi all, > My kernel version is linux-4.9.158, it hangs when replace the old u-boot(1.1.4) with u-boot-master. > For linux-4.14.xx, When I enable CONFIG_MIPSR2_IRQ_VI options, it does hang any longer while still hang in linux-4.9.158. > Sometimes it hangs at "random: crng init done". > > Any hints will be appreciated!!! Thanks It is hard to answer your questions. Many parts play with each other. ASo far I have following questions: - why do you change boot loader? - why do you use old kernels? - why you do not use devicetree? - what is your memory layout? Where is loaded u-boot and where should be loaded kernel. Is kernel compressed? Where it will be extracted? Here is boot log on my system: barebox 2019.01.0-00526-gdd4b47ab1b #346 Mon Feb 18 08:42:48 CET 2019 Board: DPTechnics DPT-Module mdio_bus: miibus0: probed ag71xx-gmac 18070000.mac@19000000.of: network device registered m25p80 w25q128@00: w25q128 (16384 Kbytes) netconsole: registered as netconsole-1 malloc space: 0x83ba0000 -> 0x83f9ffff (size 4 MiB) eth0: got preset MAC address: c4:93:00:00:ae:89 running /env/bin/init... Hit any key to stop autoboot: 0 Booting entry 'net' eth0: DHCP client bound to address 192.168.25.20 Loading ELF '/mnt/tftp/ore-linux-dpt-module' Loading devicetree from '/mnt/tftp/ore-oftree-dpt-module' Starting application at 0x806e0000, dts 0x83bd6120... [ 0.000000] Linux version 5.0.0-rc1+ (ptxdist@ptxdist) (gcc version 8.2.1 20181130 (OSELAS.Toolch$ in-2018.12.0 8-20181130)) #644 2019-01-11T13:10:06+00:00 [ 0.000000] printk: bootconsole [early0] enabled [ 0.000000] CPU0 revision is: 00019374 (MIPS 24Kc) [ 0.000000] MIPS: machine is DPTechnics DPT-Module [ 0.000000] SoC: Atheros AR9330 rev 1 [ 0.000000] Determined physical RAM map: [ 0.000000] memory: 04000000 @ 80000000 (usable) [ 0.000000] memory: 04000000 @ 00000000 (usable) [ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes. [ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes [ 0.000000] Zone ranges: [ 0.000000] Normal [mem 0x0000000000000000-0x0000000003ffffff] [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000000000-0x0000000003ffffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000003ffffff] [ 0.000000] random: get_random_bytes called from start_kernel+0xc4/0x52c with crng_init=0 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 16256 [ 0.000000] Kernel command line: ip=dhcp root=/dev/nfs nfsroot=192.168.23.4:/home/ore/nfsroot/d$ t-module,v3,tcp [ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) [ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Writing ErrCtl register=00000000 [ 0.000000] Readback ErrCtl register=00000000 [ 0.000000] Memory: 56624K/65536K available (4883K kernel code, 398K rwdata, 960K rodata, 1432K i$ it, 213K bss, 8912K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] ftrace: allocating 17594 entries in 35 pages [ 0.000000] NR_IRQS: 51 [ 0.000000] CPU clock: 400.000 MHz [ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302233 n$ [ 0.000014] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 10737418237ns [ 0.007915] Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104) [ 0.007915] Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104) [ 0.092710] pid_max: default: 32768 minimum: 301 [ 0.097631] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.103958] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.114890] devtmpfs: initialized [ 0.120178] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446 2750000 ns [ 0.128639] futex hash table entries: 256 (order: -1, 3072 bytes) [ 0.134860] pinctrl core: initialized pinctrl subsystem [ 0.141450] NET: Registered protocol family 16 [ 0.222120] clocksource: Switched to clocksource MIPS [ 2.172295] NET: Registered protocol family 2 [ 2.176493] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes) [ 2.182985] TCP established hash table entries: 1024 (order: 0, 4096 bytes) [ 2.189826] TCP bind hash table entries: 1024 (order: 0, 4096 bytes) [ 2.196188] TCP: Hash tables configured (established 1024 bind 1024) [ 2.202754] UDP hash table entries: 256 (order: 0, 4096 bytes) [ 2.208341] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) [ 2.215083] NET: Registered protocol family 1 [ 2.221613] RPC: Registered named UNIX socket transport module. [ 2.226175] RPC: Registered udp transport module. [ 2.230768] RPC: Registered tcp transport module. [ 2.235487] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 2.245537] workingset: timestamp_bits=30 max_order=14 bucket_order=0 [ 2.261046] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 2.282255] NFS: Registering the id_resolver key type [ 2.285902] Key type id_resolver registered [ 2.290024] Key type id_legacy registered [ 2.294098] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 2.300768] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 2.313723] pinctrl-single 18040028.pinmux: 64 pins, size 8 [ 2.323909] Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled [ 2.331142] 18020000.uart: ttyATH0 at MMIO 0x18020000 (irq = 8, base_baud = 1562500) is a AR933X U ART [ 2.339446] printk: console [ttyATH0] enabled [ 2.339446] printk: console [ttyATH0] enabled [ 2.347627] printk: bootconsole [early0] disabled [ 2.347627] printk: bootconsole [early0] disabled [ 2.363728] m25p80 spi0.0: w25q128 (16384 Kbytes) [ 2.367039] 4 fixed-partitions partitions found on MTD device spi0.0 [ 2.373438] Creating 4 MTD partitions on "spi0.0": [ 2.378121] 0x000000020000-0x0000003e0000 : "firmware" [ 2.386127] 0x000000000000-0x000000080000 : "barebox" [ 2.393122] 0x000000080000-0x000000090000 : "barebox-environment" [ 2.401065] 0x0000007f0000-0x000000800000 : "art" [ 2.408770] libphy: Fixed MDIO Bus: probed [ 2.562114] random: fast init done [ 2.742683] libphy: ag71xx_mdio: probed [ 3.032223] mdio-bus.0:1f: Found an AR7240/AR9330 built-in switch [ 3.037170] libphy: ar7240sw_mdio: probed [ 3.086221] ag71xx 19000000.eth: invalid MAC address, using random address [ 3.423862] ag71xx 19000000.eth: connected to PHY at mdio-bus.0:1f:04 [uid=004dd041, driver=Generi c PHY] [ 3.433094] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:MII [ 3.440646] NET: Registered protocol family 10 [ 3.449822] Segment Routing with IPv6 [ 3.452310] NET: Registered protocol family 17 [ 3.457295] 8021q: 802.1Q VLAN Support v1.8 [ 3.460718] Key type dns_resolver registered [ 3.470181] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 5.533865] eth0: link up (100Mbps/Full duplex) [ 5.542180] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 5.572256] Sending DHCP requests ., OK [ 6.674525] IP-Config: Got DHCP answer from 192.168.23.4, my address is 192.168.25.152 [ 6.682442] IP-Config: Complete: [ 6.685640] device=eth0, hwaddr=5a:8e:98:5e:67:91, ipaddr=192.168.25.152, mask=255.255.0.0, g w=192.168.23.254 [ 6.695986] host=192.168.25.152, domain=lab.pengutronix.de, nis-domain=(none) [ 6.703544] bootserver=192.168.23.4, rootserver=192.168.23.4, rootpath= [ 6.703554] nameserver0=192.168.23.254 [ 6.714748] ntpserver0=192.168.23.4 [ 6.747124] VFS: Mounted root (nfs filesystem) readonly on device 0:12. [ 6.753709] devtmpfs: mounted [ 6.784596] Freeing unused kernel memory: 1432K [ 6.787677] This architecture does not have kernel memory protection. [ 6.794147] Run /sbin/init as init process [ 7.376070] systemd[1]: System time before build time, advancing clock. [ 7.500128] systemd[1]: Failed to insert module 'autofs4': No such file or directory [ 7.622546] systemd[1]: systemd 239 running in system mode. (-PAM -AUDIT -SELINUX -IMA -APPARMOR - SMACK -SYSVINIT -UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS -ACL -XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -I DN2 -IDN -PCRE2 default-hierarchy=hybrid) [ 7.643950] systemd[1]: Detected architecture mips. Welcome to PTXdist / Pengutronix-Freifunk! [ 7.715905] systemd[1]: Set hostname to . -- Regards, Oleksij