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Message-ID: <CAGXr9JHyGvWaeS7nRmdB+F5XBOCQcPy5xRPCwpaksJsAQV98mQ@mail.gmail.com>
Date: Tue, 19 Aug 2014 20:09:28 -0700
From: Petri Gynther <pgynther@...gle.com>
To: linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org
Subject: Re: Linux 3.16 boot hangs at initramfs scripts when mounting filesystems
Alex's commit fixes the Linux 3.16 boot hang on BMIPS5000 that I
reported. Please include this fix to 3.16.x and 3.14.x stable trains.
commit e90e6fddc57055c4c6b57f92787fea1c065d440b
Author: Alex Smith <alex.smith@...tec.com>
Date: Wed Jul 23 14:40:11 2014 +0100
MIPS: O32/32-bit: Fix bug which can cause incorrect system call restarts
On Wed, Aug 13, 2014 at 7:12 PM, Petri Gynther <pgynther@...gle.com> wrote:
> Hi linux-kernel and linux-mips:
>
> I'm trying to boot Linux 3.16 on Broadcom BMIPS5000-based platform.
> However, 90% of the time, the system hangs at initramfs scripts at one
> of the mount commands. I'm also seeing this same issue when booting
> Linux 3.15.
>
> Please see the boot log below. At 2.583000, MMC partitions seem to be
> detected correctly. At 2.809000 initramfs scripts start to run. The
> scripts attempt to run the following commands:
>
> strace mount -t devtmpfs none /dev
> strace mount -t proc none /proc
> strace mount -t sysfs none /sys
> strace mkdir /dev/pts /dev/shm
> strace mount -t devpts none /dev/pts
> strace mount -t tmpfs none /dev/shm
> strace mount -t debugfs none /sys/kernel/debug
> strace mount -o ro -t squashfs /dev/mmcblk0p19 /rootfs
>
> [ 0.000000] Linux version 3.16.0 ... (gcc version 4.5.3 (Broadcom
> stbgcc-4.5.3-1.3) ) #4 SMP Wed Aug 13 18:13:44 PDT 2014
> [ 0.000000] Fetching vars from bootloader... found 10 vars.
> [ 0.000000] Options: moca=1 sata=0 pcie=0 usb=1
> [ 0.000000] Using 1024 MB + 0 MB RAM (from CFE)
> [ 0.000000] bootconsole [early0] enabled
> [ 0.000000] CPU0 revision is: 00025a11 (Broadcom BMIPS5000)
> [ 0.000000] FPU revision is: 00130001
> [ 0.000000] Determined physical RAM map:
> [ 0.000000] memory: 10000000 @ 00000000 (usable)
> [ 0.000000] memory: 30000000 @ 20000000 (usable)
> [ 0.000000] bmem: adding 109 MB LINUX region at 18 MB (0x06d0a000@...12f6000)
> [ 0.000000] bmem: adding 128 MB RESERVED region at 128 MB
> (0x08000000@...8000000)
> [ 0.000000] bmem: adding 320 MB RESERVED region at 512 MB
> (0x14000000@...0000000)
> [ 0.000000] bmem: adding 448 MB LINUX region at 832 MB
> (0x1c000000@...4000000)
> [ 0.000000] Initrd not found or empty - disabling initrd
> [ 0.000000] Zone ranges:
> [ 0.000000] Normal [mem 0x00000000-0x4fffffff]
> [ 0.000000] HighMem empty
> [ 0.000000] Movable zone start for each node
> [ 0.000000] Early memory node ranges
> [ 0.000000] node 0: [mem 0x00000000-0x0fffffff]
> [ 0.000000] node 0: [mem 0x20000000-0x4fffffff]
> [ 0.000000] On node 0 totalpages: 262144
> [ 0.000000] Normal zone: 2048 pages used for memmap
> [ 0.000000] Normal zone: 0 pages reserved
> [ 0.000000] Normal zone: 262144 pages, LIFO batch:31
> [ 0.000000] Primary instruction cache 32kB, physically tagged,
> 4-way, linesize 64 bytes.
> [ 0.000000] Primary data cache 32kB, 4-way, linesize 32 bytes.
> [ 0.000000] MIPS secondary cache 256kB, 8-way, linesize 128 bytes.
> [ 0.000000] PERCPU: Embedded 9 pages/cpu @81b1a000 s12416 r8192 d16256 u36864
> [ 0.000000] pcpu-alloc: s12416 r8192 d16256 u36864 alloc=9*4096
> [ 0.000000] pcpu-alloc: [0] 0 [0] 1
> [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
> Total pages: 260096
> [ 0.000000] Kernel command line: splashmem=0x0/4m@...c1
> cfe_ver=3.53.24 display=on rootfstype=squashfs partitionver=2
> root=rootfs1 debug bmem=128m@...m bmem=320m@...m log_buf_len=8388608
> [ 0.000000] Switched partition from version 0 to version 2.
> [ 0.000000] log_buf_len: 8388608
> [ 0.000000] early log buf free: 13880(84%)
> [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
> [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
> [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
> [ 0.000000] Memory: 553056K/1048576K available (7245K kernel code,
> 434K rwdata, 1944K rodata, 1688K init, 8087K bss, 495520K reserved, 0K
> highmem)
> [ 0.000000] Hierarchical RCU implementation.
> [ 0.000000] NR_IRQS:160
> [ 0.000000] Measuring MIPS counter frequency...
> [ 0.000000] Detected MIPS clock frequency: 1305 MHz (163.136 MHz counter)
> [ 0.001000] Console: colour dummy device 80x25
> [ 0.002000] Lock dependency validator: Copyright (c) 2006 Red Hat,
> Inc., Ingo Molnar
> [ 0.003000] ... MAX_LOCKDEP_SUBCLASSES: 8
> [ 0.004000] ... MAX_LOCK_DEPTH: 48
> [ 0.005000] ... MAX_LOCKDEP_KEYS: 8191
> [ 0.006000] ... CLASSHASH_SIZE: 4096
> [ 0.007000] ... MAX_LOCKDEP_ENTRIES: 32768
> [ 0.008000] ... MAX_LOCKDEP_CHAINS: 65536
> [ 0.009000] ... CHAINHASH_SIZE: 32768
> [ 0.010000] memory used by lock dependency info: 5167 kB
> [ 0.011000] per task-struct memory footprint: 1152 bytes
> [ 0.018000] Calibrating delay loop... 864.25 BogoMIPS (lpj=432128)
> [ 0.029000] pid_max: default: 32768 minimum: 301
> [ 0.032000] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
> [ 0.033000] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
> [ 0.040000] ftrace: allocating 21366 entries in 42 pages
> [ 0.087000] SMP: Booting CPU1...
> [ 0.088000] CPU1 revision is: 00025a11 (Broadcom BMIPS5000)
> [ 0.088000] FPU revision is: 00130001
> [ 0.088000] Primary instruction cache 32kB, physically tagged,
> 4-way, linesize 64 bytes.
> [ 0.088000] Primary data cache 32kB, 4-way, linesize 32 bytes.
> [ 0.088000] MIPS secondary cache 256kB, 8-way, linesize 128 bytes.
> [ 0.098000] SMP: CPU1 is running
> [ 0.098000] Brought up 2 CPUs
> [ 0.136000] devtmpfs: initialized
> [ 0.187000] kworker/u4:0 (19) used greatest stack depth: 6164 bytes left
> [ 0.196000] NET: Registered protocol family 16
> [ 0.198000] kworker/u4:0 (20) used greatest stack depth: 6060 bytes left
> [ 0.205000] kworker/u4:0 (21) used greatest stack depth: 5732 bytes left
> [ 0.217000] USB0: power enable is active high; overcurrent is active low
> [ 0.218000] USB1: power enable is active high; overcurrent is active low
> [ 0.246000] kworker/u4:0 (51) used greatest stack depth: 5684 bytes left
> [ 0.364000] SCSI subsystem initialized
> [ 0.366000] libata version 3.00 loaded.
> [ 0.371000] usbcore: registered new interface driver usbfs
> [ 0.373000] usbcore: registered new interface driver hub
> [ 0.374000] usbcore: registered new device driver usb
> [ 0.379000] Advanced Linux Sound Architecture Driver Initialized.
> [ 0.391000] Switched to clocksource wktmr
> [ 0.708000] kworker/u4:0 (311) used greatest stack depth: 5356 bytes left
> [ 0.716000] NET: Registered protocol family 2
> [ 0.726000] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
> [ 0.734000] TCP bind hash table entries: 8192 (order: 6, 294912 bytes)
> [ 0.743000] TCP: Hash tables configured (established 8192 bind 8192)
> [ 0.750000] TCP: reno registered
> [ 0.753000] UDP hash table entries: 512 (order: 3, 40960 bytes)
> [ 0.760000] UDP-Lite hash table entries: 512 (order: 3, 40960 bytes)
> [ 0.769000] NET: Registered protocol family 1
> [ 0.777000] RPC: Registered named UNIX socket transport module.
> [ 0.783000] RPC: Registered udp transport module.
> [ 0.788000] RPC: Registered tcp transport module.
> [ 0.792000] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [ 0.976000] futex hash table entries: 512 (order: 3, 32768 bytes)
> [ 0.982000] hotplug (321) used greatest stack depth: 5244 bytes left
> [ 1.003000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
> [ 1.021000] NFS: Registering the id_resolver key type
> [ 1.026000] Key type id_resolver registered
> [ 1.030000] Key type id_legacy registered
> [ 1.034000] jffs2: version 2.2. (NAND) �© 2001-2006 Red Hat, Inc.
> [ 1.043000] fuse init (API version 7.23)
> [ 1.050000] msgmni has been set to 1080
> [ 1.056000] hotplug (330) used greatest stack depth: 4972 bytes left
> [ 1.063000] io scheduler noop registered
> [ 1.067000] io scheduler cfq registered (default)
> [ 1.074000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
> [ 1.111000] console [ttyS0] disabled
> [ 1.116000] serial8250.0: ttyS0 at MMIO 0x10406700 (irq = 52,
> base_baud = 5062500) is a 16550A
> [ 1.124000] console [ttyS0] enabled
> [ 1.124000] console [ttyS0] enabled
> [ 1.131000] bootconsole [early0] disabled
> [ 1.131000] bootconsole [early0] disabled
> [ 1.145000] serial8250.0: ttyS1 at MMIO 0x10406740 (irq = 53,
> base_baud = 5062500) is a 16550A
> [ 1.160000] serial8250.0: ttyS2 at MMIO 0x10406780 (irq = 54,
> base_baud = 5062500) is a 16550A
> [ 1.262000] hotplug (361) used greatest stack depth: 4860 bytes left
> [ 1.331000] brd: module loaded
> [ 1.394000] hotplug (382) used greatest stack depth: 4772 bytes left
> [ 1.445000] loop: module loaded
> [ 1.464000] brcmstb_nand: NAND controller driver is loaded
> [ 1.471000] __clk_enable: network [1]
> [ 1.475000] bcm7429_pm_network_enable 00
> [ 1.479000] __clk_enable: enet [1]
> [ 1.482000] bcm40nm_pm_genet_enable 00
> [ 1.505000] bcmgenet: PHY device 0x600d:0x8731 at 1
> [ 1.610000] bcmgenet: configuring instance #0 for internal PHY
> [ 1.632000] bcmgenet bcmgenet.0 eth0: link down
> [ 1.637000] __clk_disable: enet [0]
> [ 1.637000] bcm40nm_pm_genet_disable 00
> [ 1.637000] __clk_disable: network [0]
> [ 1.637000] bcm7429_pm_network_disable 00
> [ 1.652000] __clk_enable: network [1]
> [ 1.652000] bcm7429_pm_network_enable 00
> [ 1.652000] __clk_enable: moca_genet [1]
> [ 1.652000] bcm40nm_pm_genet1_enable 00
> [ 1.652000] __clk_enable: moca [1]
> [ 1.652000] bcm40nm_pm_moca_enable 00
> [ 1.681000] bcmgenet: PHY device 0x0:0x0 at -2
> [ 1.686000] bcmgenet: configuring instance #1 for MoCA
> [ 1.697000] __clk_disable: moca [0]
> [ 1.697000] bcm40nm_pm_moca_disable 00
> [ 1.697000] __clk_disable: moca_genet [0]
> [ 1.697000] bcm40nm_pm_genet1_disable 00
> [ 1.697000] __clk_disable: network [0]
> [ 1.697000] bcm7429_pm_network_disable 00
> [ 1.721000] pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB
> Ethernet driver
> [ 1.730000] usbcore: registered new interface driver pegasus
> [ 1.737000] usbcore: registered new interface driver asix
> [ 1.743000] usbcore: registered new interface driver ax88179_178a
> [ 1.750000] usbcore: registered new interface driver cdc_ether
> [ 1.757000] usbcore: registered new interface driver net1080
> [ 1.764000] usbcore: registered new interface driver cdc_subset
> [ 1.770000] usbcore: registered new interface driver zaurus
> [ 1.777000] usbcore: registered new interface driver cdc_ncm
> [ 1.787000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [ 1.794000] __clk_enable: usb [1]
> [ 1.794000] bcm40nm_pm_usb_enable 00
> [ 1.801000] ehci-brcm ehci-brcm.0: Broadcom STB EHCI
> [ 1.812000] ehci-brcm ehci-brcm.0: new USB bus registered, assigned
> bus number 1
> [ 1.830000] drivers/usb/host/ehci-brcm.c:ehci_port_power - Not Implemented!
> [ 1.837000] ehci-brcm ehci-brcm.0: irq 56, io mem 0x10480300
> [ 1.849000] ehci-brcm ehci-brcm.0: USB 0.0 started, EHCI 1.00
> [ 1.867000] hub 1-0:1.0: USB hub found
> [ 1.871000] hub 1-0:1.0: 1 port detected
> [ 1.883000] ehci-brcm ehci-brcm.1: Broadcom STB EHCI
> [ 1.890000] ehci-brcm ehci-brcm.1: new USB bus registered, assigned
> bus number 2
> [ 1.909000] drivers/usb/host/ehci-brcm.c:ehci_port_power - Not Implemented!
> [ 1.916000] ehci-brcm ehci-brcm.1: irq 57, io mem 0x10480500
> [ 1.928000] ehci-brcm ehci-brcm.1: USB 0.0 started, EHCI 1.00
> [ 1.942000] hub 2-0:1.0: USB hub found
> [ 1.947000] hub 2-0:1.0: 1 port detected
> [ 1.957000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [ 1.964000] ohci-brcm ohci-brcm.0: Broadcom STB OHCI
> [ 1.971000] ohci-brcm ohci-brcm.0: new USB bus registered, assigned
> bus number 3
> [ 1.979000] ohci-brcm ohci-brcm.0: irq 58, io mem 0x10480400
> [ 2.059000] hub 3-0:1.0: USB hub found
> [ 2.064000] hub 3-0:1.0: 1 port detected
> [ 2.075000] ohci-brcm ohci-brcm.1: Broadcom STB OHCI
> [ 2.082000] ohci-brcm ohci-brcm.1: new USB bus registered, assigned
> bus number 4
> [ 2.090000] ohci-brcm ohci-brcm.1: irq 59, io mem 0x10480600
> [ 2.166000] hub 4-0:1.0: USB hub found
> [ 2.171000] hub 4-0:1.0: 1 port detected
> [ 2.182000] usbcore: registered new interface driver usb-storage
> [ 2.192000] mousedev: PS/2 mouse device common for all mice
> [ 2.201000] device-mapper: ioctl: 4.27.0-ioctl (2013-10-30)
> initialised: dm-devel@...hat.com
> [ 2.211000] sdhci: Secure Digital Host Controller Interface driver
> [ 2.217000] sdhci: Copyright(c) Pierre Ossman
> [ 2.222000] sdhci-pltfm: SDHCI platform and OF driver helper
> [ 2.228000] sdhci-brcmstb sdhci-brcmstb.0: Enabling controller
> [ 2.236000] mmc0: no vqmmc regulator found
> [ 2.240000] mmc0: no vmmc regulator found
> [ 2.278000] mmc0: SDHCI controller on sdhci-brcmstb.0
> [sdhci-brcmstb.0] using ADMA
> [ 2.288000] sdhci-brcmstb sdhci-brcmstb.1: Enabling controller
> [ 2.297000] mmc1: no vqmmc regulator found
> [ 2.302000] mmc1: no vmmc regulator found
> [ 2.340000] mmc1: SDHCI controller on sdhci-brcmstb.1
> [sdhci-brcmstb.1] using ADMA
> [ 2.351000] usbcore: registered new interface driver usbhid
> [ 2.356000] usbhid: USB HID core driver
> [ 2.368000] TCP: cubic registered
> [ 2.374000] NET: Registered protocol family 10
> [ 2.393000] sit: IPv6 over IPv4 tunneling driver
> [ 2.403000] mmc0: new ultra high speed SDR50 SDIO card at address 0001
> [ 2.408000] NET: Registered protocol family 17
> [ 2.416000] 8021q: 802.1Q VLAN Support v1.8
> [ 2.421000] Key type dns_resolver registered
> [ 2.430000] PM: CP0 COUNT/COMPARE frequency does not depend on divisor
> [ 2.475000] kmemleak: Kernel memory leak detector initialized
> [ 2.485000] EBI CS0: setting up SPI flash
> [ 2.493000] spi_brcmstb spi_brcmstb.0: master is unqueued, this is deprecated
> [ 2.493000] kmemleak: Automatic memory scanning thread started
> [ 2.514000] spi_brcmstb spi_brcmstb.0: 1-lane output, 3-byte address
> [ 2.524000] mmc1: BKOPS_EN bit is not set
> [ 2.531000] m25p80 spi0.0: found mx25l3255d, expected m25p80
> [ 2.533000] mmc1: new high speed MMC card at address 0001
> [ 2.542000] m25p80 spi0.0: mx25l3255d (4096 Kbytes)
> [ 2.549000] Creating 10 MTD partitions on "spi0.0":
> [ 2.554000] 0x000000000000-0x000000200000 : "cfe"
> [ 2.555000] mmcblk0: mmc1:0001 4FEACB 3.64 GiB
> [ 2.583000] mmcblk0: p16 p17 p18 p19 p20 p21
> [ 2.583000] 0x000000200000-0x000000370000 : ...
> [ 2.597000] 0x000000370000-0x000000380000 : ...
> [ 2.626000] 0x000000380000-0x000000390000 : ...
> [ 2.655000] 0x000000390000-0x0000003a0000 : ...
> [ 2.680000] 0x0000003a0000-0x0000003b0000 : ...
> [ 2.701000] 0x0000003b0000-0x0000003c0000 : ...
> [ 2.723000] 0x0000003c0000-0x0000003d0000 : ...
> [ 2.744000] 0x0000003d0000-0x0000003e0000 : ...
> [ 2.766000] 0x0000003e0000-0x000000400000 : ...
> [ 2.796000] ALSA device list:
> [ 2.799000] No soundcards found.
> [ 2.809000] Freeing unused kernel memory: 1688K (8096a000 - 80b10000)
> ---- initramfs ('/init')
> To bypass this script, use rdinit=/bin/sh
> execve("/bin/mount", ["mount", "-t", "devtmpfs", "none", "/dev"], [/*
> 10 vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7716a000
> stat("/etc/ld.so.cache", 0x7f832118) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77167000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7712d000
> old_mmap(0x7712d000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x7712d000
> old_mmap(0x7714e000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x7714e000
> old_mmap(0x77150000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77150000
> close(3) = 0
> munmap(0x77167000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77167000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x770f6000
> old_mmap(0x770f6000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x770f6000
> old_mmap(0x7712c000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x7712c000
> close(3) = 0
> munmap(0x77167000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77167000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7703c000
> old_mmap(0x7703c000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x7703c000
> old_mmap(0x770ee000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x770ee000
> old_mmap(0x770f0000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x770f0000
> close(3) = 0
> munmap(0x77167000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77167000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77029000
> old_mmap(0x77029000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x77029000
> old_mmap(0x7703a000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x7703a000
> close(3) = 0
> munmap(0x77167000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77167000
> set_thread_area(0x7716e460) = 0
> mprotect(0x7714e000, 4096, PROT_READ) = 0
> mprotect(0x770ee000, 4096, PROT_READ) = 0
> mprotect(0x7703a000, 4096, PROT_READ) = 0
> mprotect(0x77168000, 4096, PROT_READ) = 0
> set_tid_address(0x77167068) = 525
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7125e84}, NULL, 16)
> = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7125d60}, NULL, 16)
> = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mount("none", "/dev", "devtmpfs", MS_SILENT, NULL) = 0
> exit_group(0) = ?
> mounted /dev
>
> execve("/bin/mount", ["mount", "-t", "proc", "none", "/proc"], [/* 10
> vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e23000
> stat("/etc/ld.so.cache", 0x7f895a08) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e22000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77de9000
> old_mmap(0x77de9000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77de9000
> old_mmap(0x77e0a000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x77e0a000
> old_mmap(0x77e0c000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77e0c000
> close(3) = 0
> munmap(0x77e22000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e22000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77db2000
> old_mmap(0x77db2000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77db2000
> old_mmap(0x77de8000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x77de8000
> close(3) = 0
> munmap(0x77e22000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e22000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77cf8000
> old_mmap(0x77cf8000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77cf8000
> old_mmap(0x77daa000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x77daa000
> old_mmap(0x77dac000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77dac000
> close(3) = 0
> munmap(0x77e22000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e22000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77ce5000
> old_mmap(0x77ce5000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x77ce5000
> old_mmap(0x77cf6000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x77cf6000
> close(3) = 0
> munmap(0x77e22000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e22000
> set_thread_area(0x77e29460) = 0
> mprotect(0x77e0a000, 4096, PROT_READ) = 0
> mprotect(0x77daa000, 4096, PROT_READ) = 0
> mprotect(0x77cf6000, 4096, PROT_READ) = 0
> mprotect(0x77e24000, 4096, PROT_READ) = 0
> set_tid_address(0x77e22068) = 533
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7de1e84}, NULL, 16)
> = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7de1d60}, NULL, 16)
> = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mount("none", "/proc", "proc", MS_SILENT, NULL) = 0
> exit_group(0) = ?
> mounted /proc
> [ 3.714000] random: nonblocking pool is initialized
>
> execve("/bin/mount", ["mount", "-t", "sysfs", "none", "/sys"], [/* 10
> vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e5a000
> stat("/etc/ld.so.cache", 0x7ff33108) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e57000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77e1d000
> old_mmap(0x77e1d000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77e1d000
> old_mmap(0x77e3e000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x77e3e000
> old_mmap(0x77e40000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77e40000
> close(3) = 0
> munmap(0x77e57000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e57000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77de6000
> old_mmap(0x77de6000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77de6000
> old_mmap(0x77e1c000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x77e1c000
> close(3) = 0
> munmap(0x77e57000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e57000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77d2c000
> old_mmap(0x77d2c000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77d2c000
> old_mmap(0x77dde000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x77dde000
> old_mmap(0x77de0000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77de0000
> close(3) = 0
> munmap(0x77e57000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e57000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77d19000
> old_mmap(0x77d19000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x77d19000
> old_mmap(0x77d2a000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x77d2a000
> close(3) = 0
> munmap(0x77e57000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77e57000
> set_thread_area(0x77e5e460) = 0
> mprotect(0x77e3e000, 4096, PROT_READ) = 0
> mprotect(0x77dde000, 4096, PROT_READ) = 0
> mprotect(0x77d2a000, 4096, PROT_READ) = 0
> mprotect(0x77e58000, 4096, PROT_READ) = 0
> set_tid_address(0x77e57068) = 535
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|0x7e25e84}, NULL, 16) = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|0x7e25d60}, NULL, 16) = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mount("none", "/sys", "sysfs", MS_SILENT, NULL) = 0
> exit_group(0) = ?
> mounted /sys
>
> execve("/bin/mkdir", ["mkdir", "/dev/pts", "/dev/shm"], [/* 10 vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77cad000
> stat("/etc/ld.so.cache", 0x7f991ea8) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77cac000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77c73000
> old_mmap(0x77c73000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77c73000
> old_mmap(0x77c94000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x77c94000
> old_mmap(0x77c96000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77c96000
> close(3) = 0
> munmap(0x77cac000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77cac000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77c3c000
> old_mmap(0x77c3c000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77c3c000
> old_mmap(0x77c72000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x77c72000
> close(3) = 0
> munmap(0x77cac000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77cac000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77b82000
> old_mmap(0x77b82000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77b82000
> old_mmap(0x77c34000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x77c34000
> old_mmap(0x77c36000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77c36000
> close(3) = 0
> munmap(0x77cac000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77cac000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77b6f000
> old_mmap(0x77b6f000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x77b6f000
> old_mmap(0x77b80000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x77b80000
> close(3) = 0
> munmap(0x77cac000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77cac000
> set_thread_area(0x77cb3460) = 0
> mprotect(0x77c94000, 4096, PROT_READ) = 0
> mprotect(0x77c34000, 4096, PROT_READ) = 0
> mprotect(0x77b80000, 4096, PROT_READ) = 0
> mprotect(0x77cae000, 4096, PROT_READ) = 0
> set_tid_address(0x77cac068) = 537
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7c6be84}, NULL, 16)
> = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7c6bd60}, NULL, 16)
> = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mkdir("/dev/pts", 0777) = 0
> mkdir("/dev/shm", 0777) = 0
> exit_group(0) = ?
>
> execve("/bin/mount", ["mount", "-t", "devpts", "none", "/dev/pts"],
> [/* 10 vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x770de000
> stat("/etc/ld.so.cache", 0x7fd44438) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x770db000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x770a1000
> old_mmap(0x770a1000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x770a1000
> old_mmap(0x770c2000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x770c2000
> old_mmap(0x770c4000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x770c4000
> close(3) = 0
> munmap(0x770db000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x770db000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7706a000
> old_mmap(0x7706a000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x7706a000
> old_mmap(0x770a0000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x770a0000
> close(3) = 0
> munmap(0x770db000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x770db000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76fb0000
> old_mmap(0x76fb0000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x76fb0000
> old_mmap(0x77062000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x77062000
> old_mmap(0x77064000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77064000
> close(3) = 0
> munmap(0x770db000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x770db000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x76f9d000
> old_mmap(0x76f9d000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x76f9d000
> old_mmap(0x76fae000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x76fae000
> close(3) = 0
> munmap(0x770db000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x770db000
> set_thread_area(0x770e2460) = 0
> mprotect(0x770c2000, 4096, PROT_READ) = 0
> mprotect(0x77062000, 4096, PROT_READ) = 0
> mprotect(0x76fae000, 4096, PROT_READ) = 0
> mprotect(0x770dc000, 4096, PROT_READ) = 0
> set_tid_address(0x770db068) = 539
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|0x70a9e84}, NULL, 16) = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|0x70a9d60}, NULL, 16) = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mount("none", "/dev/pts", "devpts", MS_SILENT, NULL) = 0
> exit_group(0) = ?
> mounted /dev/pts
>
> execve("/bin/mount", ["mount", "-t", "tmpfs", "none", "/dev/shm"], [/*
> 10 vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7724e000
> stat("/etc/ld.so.cache", 0x7fa16e58) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7724b000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77211000
> old_mmap(0x77211000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77211000
> old_mmap(0x77232000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x77232000
> old_mmap(0x77234000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x77234000
> close(3) = 0
> munmap(0x7724b000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7724b000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x771da000
> old_mmap(0x771da000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x771da000
> old_mmap(0x77210000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x77210000
> close(3) = 0
> munmap(0x7724b000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7724b000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77120000
> old_mmap(0x77120000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x77120000
> old_mmap(0x771d2000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x771d2000
> old_mmap(0x771d4000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x771d4000
> close(3) = 0
> munmap(0x7724b000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7724b000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7710d000
> old_mmap(0x7710d000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x7710d000
> old_mmap(0x7711e000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x7711e000
> close(3) = 0
> munmap(0x7724b000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x7724b000
> set_thread_area(0x77252460) = 0
> mprotect(0x77232000, 4096, PROT_READ) = 0
> mprotect(0x771d2000, 4096, PROT_READ) = 0
> mprotect(0x7711e000, 4096, PROT_READ) = 0
> mprotect(0x7724c000, 4096, PROT_READ) = 0
> set_tid_address(0x7724b068) = 541
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7209e84}, NULL, 16)
> = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7209d60}, NULL, 16)
> = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mount("none", "/dev/shm", "tmpfs", MS_SILENT, NULL) = 0
> exit_group(0) = ?
> mounted /dev/shm
>
> execve("/bin/mount", ["mount", "-t", "debugfs", "none",
> "/sys/kernel/debug"], [/* 10 vars */]) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77945000
> stat("/etc/ld.so.cache", 0x7fa4b758) = -1 ENOENT (No such file or directory)
> open("/lib/libpthread.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=108126, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77944000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@?\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 151552, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7790b000
> old_mmap(0x7790b000, 71708, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x7790b000
> old_mmap(0x7792c000, 4916, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x11000) = 0x7792c000
> old_mmap(0x7792e000, 5184, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7792e000
> close(3) = 0
> munmap(0x77944000, 4096) = 0
> open("/lib/libgcc_s.so.1", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=201808, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77944000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\200\306\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 225280, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x778d4000
> old_mmap(0x778d4000, 155636, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x778d4000
> old_mmap(0x7790a000, 2308, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x26000) = 0x7790a000
> close(3) = 0
> munmap(0x77944000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77944000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0@\260\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 761856, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7781a000
> old_mmap(0x7781a000, 664844, PROT_READ|PROT_EXEC,
> MAP_PRIVATE|MAP_FIXED, 3, 0) = 0x7781a000
> old_mmap(0x778cc000, 7904, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0xa2000) = 0x778cc000
> old_mmap(0x778ce000, 23052, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x778ce000
> close(3) = 0
> munmap(0x77944000, 4096) = 0
> open("/lib/libdl.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=9576, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77944000
> read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\10\0\1\0\0\0\300\t\0\0004\0\0\0"...,
> 4096) = 4096
> old_mmap(NULL, 77824, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x77807000
> old_mmap(0x77807000, 7920, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED,
> 3, 0) = 0x77807000
> old_mmap(0x77818000, 4256, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x1000) = 0x77818000
> close(3) = 0
> munmap(0x77944000, 4096) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> open("/lib/libc.so.0", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0750, st_size=720980, ...}) = 0
> close(3) = 0
> stat("/lib/ld-uClibc.so.0", {st_mode=S_IFREG|0750, st_size=31672, ...}) = 0
> old_mmap(NULL, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_ANONYMOUS|0x4000000, -1, 0) = 0x77944000
> set_thread_area(0x7794b460) = 0
> mprotect(0x7792c000, 4096, PROT_READ) = 0
> mprotect(0x778cc000, 4096, PROT_READ) = 0
> mprotect(0x77818000, 4096, PROT_READ) = 0
> mprotect(0x77946000, 4096, PROT_READ) = 0
> set_tid_address(0x77944068) = 543
> SYS_4309() = 0
> rt_sigaction(SIGRT_0, {0x8, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7903e84}, NULL, 16)
> = 0
> rt_sigaction(SIGRT_1, {0x10000008, [RT_93 RT_94 RT_95],
> SA_RESTART|SA_INTERRUPT|SA_NODEFER|SA_NOCLDWAIT|0x7903d60}, NULL, 16)
> = 0
> rt_sigprocmask(SIG_UNBLOCK, [RT_0 RT_1], NULL, 16) = 0
> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=268435464}) = 0
> ioctl(0, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> ioctl(1, TIOCNXCL, {B115200 opost isig icanon echo ...}) = 0
> mount("none", "/sys/kernel/debug", "debugfs", MS_SILENT, NULL) = 0
> exit_group(0) = ?
> mounted /sys/kernel/debug
>
> < boot hangs here >
>
> [ 40.338000] INFO: task kmemleak:467 blocked for more than 20 seconds.
> [ 40.344000] Not tainted 3.16.0-gfiber0-g8f44b1b-dirty #4
> [ 40.350000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this message.
> [ 40.358000] kmemleak D 8070b79c 7104 467 2 0x00100000
> [ 40.364000] Stack : ffffffff 80950000 80b13ec0 807122ec cf416050
> ceaabe24 cf290a00 80b13ec0
> 8071a420 ffffffff 80950000 80085788 10008701 00000000
> cff80cd0 cff80a80
> 81b1c900 10008701 fffc603e 80900000 ceaabe24 80b13ec0
> 80b13ec0 8071a420
> ffffffff 80950000 ffdfffff 8070b79c 00000001 cfca1d8c
> 10008701 cff80f60
> 10008701 80b14a7c 80b14a7c fffc603e 80b13ec0 80039698
> cff80a80 ffffffff
> ...
> [ 40.402000] Call Trace:
> [ 40.404000] [<8070c204>] __schedule+0x4a4/0x8d4
> [ 40.409000] [<8070b79c>] schedule_timeout+0x144/0x21c
> [ 40.414000] [<8003a10c>] msleep+0x34/0x44
> [ 40.418000] [<801495d4>] kmemleak_scan_thread+0xf0/0xf8
> [ 40.423000] [<800538c0>] kthread+0x134/0x13c
> [ 40.428000] [<80007940>] ret_from_kernel_thread+0x10/0x18
> [ 40.433000]
> [ 40.435000] no locks held by kmemleak/467.
> [ 60.440000] INFO: task kmemleak:467 blocked for more than 20 seconds.
> [ 60.446000] Not tainted 3.16.0-gfiber0-g8f44b1b-dirty #4
> [ 60.452000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs"
> disables this message.
> [ 60.460000] kmemleak D 8070b79c 7104 467 2 0x00100000
> [ 60.466000] Stack : ffffffff 80950000 80b13ec0 807122ec cf416050
> ceaabe24 cf290a00 80b13ec0
> 8071a420 ffffffff 80950000 80085788 10008701 00000000
> cff80cd0 cff80a80
> 81b1c900 10008701 fffc603e 80900000 ceaabe24 80b13ec0
> 80b13ec0 8071a420
> ffffffff 80950000 ffdfffff 8070b79c 00000001 cfca1d8c
> 10008701 cff80f60
> 10008701 80b147f4 80b147f4 fffc603e 80b13ec0 80039698
> cff80a80 ffffffff
> ...
> [ 60.503000] Call Trace:
> [ 60.506000] [<8070c204>] __schedule+0x4a4/0x8d4
> [ 60.511000] [<8070b79c>] schedule_timeout+0x144/0x21c
> [ 60.516000] [<8003a10c>] msleep+0x34/0x44
> [ 60.520000] [<801495d4>] kmemleak_scan_thread+0xf0/0xf8
> [ 60.525000] [<800538c0>] kthread+0x134/0x13c
> [ 60.529000] [<80007940>] ret_from_kernel_thread+0x10/0x18
> [ 60.535000]
> [ 60.536000] no locks held by kmemleak/467.
>
>
> After mounting /sys/kernel/debug, it appears that the scheduler just
> dies. initramfs script was still going to run "strace mount -o ro -t
> squashfs /dev/mmcblk0p19 /rootfs", but it never executes. Instead, we
> can see that kmemleak_scan_thread() has become a hung task. And
> obviously, the system never gets to a shell prompt.
>
> Relevant kernel config is:
> CONFIG_MIPS=y
> CONFIG_SMP=y
> CONFIG_NR_CPUS=2
> CONFIG_HZ_1000=y
> CONFIG_HZ=1000
> CONFIG_PREEMPT_NONE=y
> CONFIG_TICK_ONESHOT=y
> CONFIG_NO_HZ_COMMON=y
> # CONFIG_HZ_PERIODIC is not set
> CONFIG_NO_HZ_IDLE=y
> CONFIG_NO_HZ=y
> CONFIG_HIGH_RES_TIMERS=y
> ...
> CONFIG_DEBUG_KMEMLEAK=y
> CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=500
> CONFIG_LOCKUP_DETECTOR=y
> CONFIG_DETECT_HUNG_TASK=y
> CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=20
> CONFIG_DEBUG_RT_MUTEXES=y
> CONFIG_DEBUG_SPINLOCK=y
> CONFIG_DEBUG_MUTEXES=y
> CONFIG_DEBUG_LOCK_ALLOC=y
> CONFIG_PROVE_LOCKING=y
> CONFIG_LOCKDEP=y
>
> Workaround:
> Interestingly, there is a workaround to avoid this hang. Once I turn
> on preemption with CONFIG_PREEMPT=y, the issue goes away.
>
> Can someone with scheduler expertise help me debug this further?
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