Possible regression in next-20150120 due to "mm: account pmd page tables to the process"
From: Simon Horman
Date: Tue Jan 20 2015 - 21:30:17 EST
Hi,
I have observed what appears to be a regression caused
by b316feb3c37ff19cd ("mm: account pmd page tables to the process").
The problem that I am seeing is that when booting the kzm9g board, which is
based on the Renesas r8a73a4 ARM SoC, using its defconfig the following the
tail boot log below is output repeatedly and the boot does not appear to
proceed any further.
I have observed this problem using next-20150120 and observed
that it does not occur when the patch mentioned above is reverted.
I have also observed what appears to be the same problem when
booting the following boards using their defconfigs. And perhaps
more to the point the problem appears to affect booting all
boards based on Renesas ARM SoCs for which there is working support
to boot them by initialising them using C (as opposed to device tree).
* armadillo800eva, based on the r8a7740 SoC
* mackerel, based on the sh7372
Bytes transferred = 2531949 (26a26d hex)
## Booting kernel from Legacy Image at 43000000 ...
Image Name: 'Linux-3.19.0-rc5-next-20150120'
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2531885 Bytes = 2.4 MiB
Load Address: 41008000
Entry Point: 41008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Booting Linux on physical CPU 0x0
Linux version 3.19.0-rc5-next-20150120 (horms@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.6.3 (GCC) ) #623 SMP Wed Jan 21 11:23:05 JST 2015
CPU: ARMv7 Processor [412fc098] revision 8 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine model: KZM-A9-GT
Ignoring memory range 0x40000000 - 0x41000000
debug: ignoring loglevel setting.
Memory policy: Data cache writealloc
On node 0 totalpages: 126976
free_area_init_node: node 0, pgdat c04fb180, node_mem_map dec19000
Normal zone: 992 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 126976 pages, LIFO batch:31
PERCPU: Embedded 10 pages/cpu @debf1000 s11840 r8192 d20928 u40960
pcpu-alloc: s11840 r8192 d20928 u40960 alloc=10*4096
pcpu-alloc: [0] 0 [0] 1
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 125984
Kernel command line: console=tty0 console=ttySC4,115200 root=/dev/nfs ip=dhcp ignore_loglevel rw
PID hash table entries: 2048 (order: 1, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 498064K/507904K available (3575K kernel code, 191K rwdata, 1080K rodata, 220K init, 191K bss, 9840K reserved, 0K cma-reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xdf800000 - 0xff000000 ( 504 MB)
lowmem : 0xc0000000 - 0xdf000000 ( 496 MB)
pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB)
modules : 0xbf000000 - 0xbfe00000 ( 14 MB)
.text : 0xc0008000 - 0xc0494fa4 (4660 kB)
.init : 0xc0495000 - 0xc04cc000 ( 220 kB)
.data : 0xc04cc000 - 0xc04fbe40 ( 192 kB)
.bss : 0xc04fbe40 - 0xc052be0c ( 192 kB)
Hierarchical RCU implementation.
Additional per-CPU info printed with stalls.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=2
NR_IRQS:16 nr_irqs:16 16
intc: Registered controller 'sh73a0-intcs' with 77 IRQs
intc: Registered controller 'sh73a0-pint0' with 32 IRQs
intc: Registered controller 'sh73a0-pint1' with 8 IRQs
sched_clock: 32 bits at 128 Hz, resolution 7812500ns, wraps every 16777216000000000ns
Console: colour dummy device 80x30
console [tty0] enabled
sh-tmu.0: ch0: used for clock events
sh-tmu.0: ch1: used as clock source
sh-cmt-48.1: ch0: used for clock events
sh-cmt-48.1: ch1: used as clock source
Calibrating delay loop (skipped) preset value.. 797.61 BogoMIPS (lpj=3114583)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x41385080 - 0x413850d8
CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
Brought up 2 CPUs
SMP: Total of 2 processors activated (1594.22 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 2
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
sh-pfc pfc-sh73a0: sh73a0_pfc handling gpio 0 -> 309
sh-pfc pfc-sh73a0: sh73a0_pfc support registered
L2C: DT/platform modifies aux control register: 0x02060000 -> 0x02460000
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 dynamic clock gating enabled, standby mode enabled
L2C-310 cache controller enabled, 8 ways, 512 kB
L2C-310: CACHE_ID 0x410000c7, AUX_CTRL 0x46460001
renesas_intc_irqpin renesas_intc_irqpin.0: driving 8 irqs
renesas_intc_irqpin renesas_intc_irqpin.1: driving 8 irqs
renesas_intc_irqpin renesas_intc_irqpin.2: driving 8 irqs
renesas_intc_irqpin renesas_intc_irqpin.3: driving 8 irqs
No ATAGs?
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
as3711 0-0040: IRQ not supported yet
as3711 0-0040: No cache defaults, reading back from HW
as3711 0-0040: AS3711 detected: 8b:1
i2c-sh_mobile i2c-sh_mobile.0: I2C adapter 0, bus speed 100000 Hz
i2c-sh_mobile i2c-sh_mobile.1: I2C adapter 1, bus speed 100000 Hz
i2c-sh_mobile i2c-sh_mobile.2: I2C adapter 2, bus speed 100000 Hz
pcf857x 3-0020: probed
i2c-sh_mobile i2c-sh_mobile.3: I2C adapter 3, bus speed 100000 Hz
i2c-sh_mobile i2c-sh_mobile.4: I2C adapter 4, bus speed 100000 Hz
sh_cmt sh-cmt-48.1: kept as earlytimer
sh_tmu sh-tmu.0: kept as earlytimer
Advanced Linux Sound Architecture Driver Initialized.
NET: Registered protocol family 23
Switched to clocksource sh-tmu.0
NET: Registered protocol family 2
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP: reno registered
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
CPU PMU: probing PMU on CPU 0
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
futex hash table entries: 512 (order: 3, 32768 bytes)
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
nfs4filelayout_init: NFSv4 File Layout Driver Registering...
io scheduler noop registered (default)
Console: switching to colour frame buffer device 100x30
sh_mobile_lcdc_fb sh_mobile_lcdc_fb.0: registered sh_mobile_lcdc_fb.0/mainlcd as 800x480 16bpp.
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1 at drivers/dma/dmaengine.c:863 dma_async_device_register+0x140/0x46c()
this driver doesn't support generic slave capabilities reporting
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.19.0-rc5-next-20150120 #623
Hardware name: kzm9g
Backtrace:
[<c0011ab8>] (dump_backtrace) from [<c0011c58>] (show_stack+0x18/0x1c)
r6:c0454711 r5:00000009 r4:00000000 r3:00200140
[<c0011c40>] (show_stack) from [<c038076c>] (dump_stack+0x74/0x90)
[<c03806f8>] (dump_stack) from [<c0024cc8>] (warn_slowpath_common+0x8c/0xb4)
r4:00000000 r3:c04dcd70
[<c0024c3c>] (warn_slowpath_common) from [<c0024d94>] (warn_slowpath_fmt+0x38/0x40)
r8:00000014 r7:c04d4538 r6:c04d556c r5:00000000 r4:ddffcc10
[<c0024d60>] (warn_slowpath_fmt) from [<c01da83c>] (dma_async_device_register+0x140/0x46c)
r3:00000000 r2:c0454756
[<c01da6fc>] (dma_async_device_register) from [<c01dd6dc>] (sh_dmae_probe+0x550/0x620)
r10:00000014 r9:00000000 r8:00000014 r7:c04d4538 r6:c04d556c r5:00000000
r4:ddffcc10
[<c01dd18c>] (sh_dmae_probe) from [<c020ab5c>] (platform_drv_probe+0x38/0x80)
r10:c04955e0 r9:c04c7d58 r8:c04d05d8 r7:c04e93f4 r6:c04e93f4 r5:c04d4538
r4:ffffffed
[<c020ab24>] (platform_drv_probe) from [<c0209054>] (driver_probe_device+0xcc/0x20c)
r6:00000000 r5:00000000 r4:c04d4538 r3:c020ab24
[<c0208f88>] (driver_probe_device) from [<c02091fc>] (__driver_attach+0x68/0x8c)
r7:00000000 r6:c04e93f4 r5:c04d456c r4:c04d4538
[<c0209194>] (__driver_attach) from [<c0207940>] (bus_for_each_dev+0x5c/0x94)
r6:c0209194 r5:de44fe28 r4:c04e93f4 r3:c0209194
[<c02078e4>] (bus_for_each_dev) from [<c0208b8c>] (driver_attach+0x20/0x28)
r7:00000000 r6:c04edd58 r5:de559800 r4:c04e93f4
[<c0208b6c>] (driver_attach) from [<c0208808>] (bus_add_driver+0xb4/0x1c8)
[<c0208754>] (bus_add_driver) from [<c02098d8>] (driver_register+0xa4/0xe8)
r7:c04d05d8 r6:00000000 r5:de6bf840 r4:c04e93f4
[<c0209834>] (driver_register) from [<c020a514>] (__platform_driver_register+0x50/0x64)
r5:de6bf840 r4:c04e93e0
[<c020a4c4>] (__platform_driver_register) from [<c020a550>] (__platform_driver_probe+0x28/0xac)
[<c020a528>] (__platform_driver_probe) from [<c04a8600>] (sh_dmae_init+0x28/0x40)
r6:00000000 r5:de6bf840 r4:c04a85d8 r3:00000000
[<c04a85d8>] (sh_dmae_init) from [<c00096d8>] (do_one_initcall+0x108/0x1b8)
[<c00095d0>] (do_one_initcall) from [<c0495d78>] (kernel_init_freeable+0x10c/0x1d8)
r9:c04c7d58 r8:00000074 r7:c04fbe40 r6:c04bee50 r5:c04bee70 r4:00000006
[<c0495c6c>] (kernel_init_freeable) from [<c037d790>] (kernel_init+0x10/0xec)
r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c037d780
r4:00000000
[<c037d780>] (kernel_init) from [<c000ede0>] (ret_from_fork+0x14/0x34)
r4:00000000 r3:de44e000
---[ end trace 04209299a07b5223 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at drivers/dma/dmaengine.c:863 dma_async_device_register+0x140/0x46c()
this driver doesn't support generic slave capabilities reporting
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 3.19.0-rc5-next-20150120 #623
Hardware name: kzm9g
Backtrace:
[<c0011ab8>] (dump_backtrace) from [<c0011c58>] (show_stack+0x18/0x1c)
r6:c0454711 r5:00000009 r4:00000000 r3:00200140
[<c0011c40>] (show_stack) from [<c038076c>] (dump_stack+0x74/0x90)
[<c03806f8>] (dump_stack) from [<c0024cc8>] (warn_slowpath_common+0x8c/0xb4)
r4:00000000 r3:c04dcd70
[<c0024c3c>] (warn_slowpath_common) from [<c0024d94>] (warn_slowpath_fmt+0x38/0x40)
r8:00000006 r7:c04d46c8 r6:c04d55f8 r5:00000000 r4:de699410
[<c0024d60>] (warn_slowpath_fmt) from [<c01da83c>] (dma_async_device_register+0x140/0x46c)
r3:00000000 r2:c0454756
[<c01da6fc>] (dma_async_device_register) from [<c01dd6dc>] (sh_dmae_probe+0x550/0x620)
r10:00000006 r9:00000000 r8:00000006 r7:c04d46c8 r6:c04d55f8 r5:00000000
r4:de699410
[<c01dd18c>] (sh_dmae_probe) from [<c020ab5c>] (platform_drv_probe+0x38/0x80)
r10:c04955e0 r9:c04c7d58 r8:c04d05d8 r7:c04e93f4 r6:c04e93f4 r5:c04d46c8
r4:ffffffed
[<c020ab24>] (platform_drv_probe) from [<c0209054>] (driver_probe_device+0xcc/0x20c)
r6:00000000 r5:00000000 r4:c04d46c8 r3:c020ab24
[<c0208f88>] (driver_probe_device) from [<c02091fc>] (__driver_attach+0x68/0x8c)
r7:00000000 r6:c04e93f4 r5:c04d46fc r4:c04d46c8
[<c0209194>] (__driver_attach) from [<c0207940>] (bus_for_each_dev+0x5c/0x94)
r6:c0209194 r5:de44fe28 r4:c04e93f4 r3:c0209194
[<c02078e4>] (bus_for_each_dev) from [<c0208b8c>] (driver_attach+0x20/0x28)
r7:00000000 r6:c04edd58 r5:de559800 r4:c04e93f4
[<c0208b6c>] (driver_attach) from [<c0208808>] (bus_add_driver+0xb4/0x1c8)
[<c0208754>] (bus_add_driver) from [<c02098d8>] (driver_register+0xa4/0xe8)
r7:c04d05d8 r6:00000000 r5:de6bf840 r4:c04e93f4
[<c0209834>] (driver_register) from [<c020a514>] (__platform_driver_register+0x50/0x64)
r5:de6bf840 r4:c04e93e0
[<c020a4c4>] (__platform_driver_register) from [<c020a550>] (__platform_driver_probe+0x28/0xac)
[<c020a528>] (__platform_driver_probe) from [<c04a8600>] (sh_dmae_init+0x28/0x40)
r6:00000000 r5:de6bf840 r4:c04a85d8 r3:00000000
[<c04a85d8>] (sh_dmae_init) from [<c00096d8>] (do_one_initcall+0x108/0x1b8)
[<c00095d0>] (do_one_initcall) from [<c0495d78>] (kernel_init_freeable+0x10c/0x1d8)
r9:c04c7d58 r8:00000074 r7:c04fbe40 r6:c04bee50 r5:c04bee70 r4:00000006
[<c0495c6c>] (kernel_init_freeable) from [<c037d790>] (kernel_init+0x10/0xec)
r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c037d780
r4:00000000
[<c037d780>] (kernel_init) from [<c000ede0>] (ret_from_fork+0x14/0x34)
r4:00000000 r3:de44e000
---[ end trace 04209299a07b5224 ]---
SuperH (H)SCI(F) driver initialized
sh-sci.0: ttySC0 at MMIO 0xe6c40000 (irq = 104, base_baud = 0) is a scifa
sh-sci.1: ttySC1 at MMIO 0xe6c50000 (irq = 105, base_baud = 0) is a scifa
sh-sci.2: ttySC2 at MMIO 0xe6c60000 (irq = 106, base_baud = 0) is a scifa
sh-sci.3: ttySC3 at MMIO 0xe6c70000 (irq = 107, base_baud = 0) is a scifa
sh-sci.4: ttySC4 at MMIO 0xe6c80000 (irq = 110, base_baud = 0) is a scifa
console [ttySC4] enabled
sh-sci.5: ttySC5 at MMIO 0xe6cb0000 (irq = 111, base_baud = 0) is a scifa
sh-sci.6: ttySC6 at MMIO 0xe6cc0000 (irq = 188, base_baud = 0) is a scifa
sh-sci.7: ttySC7 at MMIO 0xe6cd0000 (irq = 175, base_baud = 0) is a scifa
sh-sci.8: ttySC8 at MMIO 0xe6c30000 (irq = 112, base_baud = 0) is a scifb
libphy: smsc911x-mdio: probed
smsc911x smsc911x.0 eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=smsc911x-0:01, irq=-1)
smsc911x smsc911x.0 eth0: MAC Address: 00:01:9b:04:04:1f
r8a66597_hcd r8a66597_hcd.0: USB Host Controller
r8a66597_hcd r8a66597_hcd.0: new USB bus registered, assigned bus number 1
r8a66597_hcd r8a66597_hcd.0: irq 2001, io base 0x10010000
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usbcore: registered new interface driver usb-storage
renesas_usbhs renesas_usbhs: gadget probed
renesas_usbhs renesas_usbhs: probed
input: st1232-touchscreen as /devices/platform/i2c-sh_mobile.1/i2c-1/1-0055/input/input0
input: ADXL34x accelerometer as /devices/platform/i2c-sh_mobile.0/i2c-0/0-001d/input/input1
rtc-rs5c372 0-0032: r2025sd found, am/pm, driver version 0.6
rtc-rs5c372 0-0032: rtc core: registered rtc-rs5c372 as rtc0
i2c /dev entries driver
Driver 'mmcblk' needs updating - please use bus_type methods
sh_mobile_sdhi sh_mobile_sdhi.0: mmc0 base at 0xee100000 clock rate 69 MHz
sh_mobile_sdhi sh_mobile_sdhi.2: No vqmmc regulator found
sh_mobile_sdhi sh_mobile_sdhi.2: mmc1 base at 0xee140000 clock rate 69 MHz
sh_mmcif sh_mmcif.0: Platform OCR mask is ignored
sh_mmcif sh_mmcif.0: Chip version 0x0003, clock rate 104MHz
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
asoc-simple-card asoc-simple-card.0: ASoC: CPU DAI fsia-dai not registered
platform asoc-simple-card.0: Driver asoc-simple-card requests probe deferral
TCP: cubic registered
NET: Registered protocol family 17
Key type dns_resolver registered
Registering SWP/SWPB emulation handler
asoc-simple-card asoc-simple-card.0: ak4642-hifi <-> fsia-dai mapping ok
input: gpio-keys as /devices/platform/gpio-keys.0/input/input2
rtc-rs5c372 0-0032: setting system clock to 2002-09-04 13:25:50 UTC (1031145950)
smsc911x smsc911x.0 eth0: SMSC911x/921x identified at 0xdfa1a000, IRQ: 2003
Sending DHCP requests .,
mmc2: switch to bus width 2 failed
mmc2: switch to bus width 1 failed
mmc2: new high speed MMC card at address 0001
mmcblk0: mmc2:0001 M4G1EM 3.72 GiB
OK
mmcblk0: unknown partition table
IP-Config: Got DHCP answer from 10.3.3.254, my address is 10.3.3.155
IP-Config: Complete:
device=eth0, hwaddr=00:01:9b:04:04:1f, ipaddr=10.3.3.155, mask=255.255.255.0, gw=10.3.3.254
host=10.3.3.155, domain=isobedori.kobe.vergenet.net kanocho.kobe.vergenet.net vergenet., nis-domain=(none)
bootserver=10.3.3.135, rootserver=10.3.3.135, rootpath=/srv/nfs/kzm9g-armhf,rsize=1024,wsize=1024
nameserver0=10.3.3.254, nameserver1=10.4.3.254, nameserver2=8.8.8.8
SDHI2 Vcc: disabling
ALSA device list:
#0: FSI2A-AK4648
VFS: Mounted root (nfs filesystem) on device 0:12.
devtmpfs: mounted
Freeing unused kernel memory: 220K (c0495000 - c04cc000)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 520 at mm/mmap.c:2859 exit_mmap+0x1f4/0x208()
Modules linked in:
CPU: 1 PID: 520 Comm: modprobe Tainted: G W 3.19.0-rc5-next-20150120 #623
Hardware name: kzm9g
Backtrace:
[<c0011ab8>] (dump_backtrace) from [<c0011c58>] (show_stack+0x18/0x1c)
r6:c04493f1 r5:00000009 r4:00000000 r3:00400004
[<c0011c40>] (show_stack) from [<c038076c>] (dump_stack+0x74/0x90)
[<c03806f8>] (dump_stack) from [<c0024cc8>] (warn_slowpath_common+0x8c/0xb4)
r4:00000000 r3:c04dcd70
[<c0024c3c>] (warn_slowpath_common) from [<c0024d14>] (warn_slowpath_null+0x24/0x2c)
r8:c000eee4 r7:de6de23c r6:00000054 r5:de6de200 r4:00000000
[<c0024cf0>] (warn_slowpath_null) from [<c00b5180>] (exit_mmap+0x1f4/0x208)
[<c00b4f8c>] (exit_mmap) from [<c0022724>] (mmput+0x48/0x100)
r6:00000000 r5:00000000 r4:de6de200
[<c00226dc>] (mmput) from [<c0026eac>] (do_exit+0x394/0x8b0)
r5:de6de200 r4:de5eb140
[<c0026b18>] (do_exit) from [<c0027514>] (do_group_exit+0xa4/0xdc)
r7:000000f8
[<c0027470>] (do_group_exit) from [<c0027564>] (__wake_up_parent+0x0/0x28)
r6:b6f02774 r5:b6f02774 r4:0006f42e r3:00000001
[<c002754c>] (SyS_exit_group) from [<c000ed40>] (ret_fast_syscall+0x0/0x34)
---[ end trace 04209299a07b5226 ]---
INIT: version 2.88 booting
------------[ cut here ]------------
WARNING: CPU: 0 PID: 522 at mm/mmap.c:2859 exit_mmap+0x1f4/0x208()
Modules linked in:
CPU: 0 PID: 522 Comm: init Tainted: G W 3.19.0-rc5-next-20150120 #623
Hardware name: kzm9g
Backtrace:
[<c0011ab8>] (dump_backtrace) from [<c0011c58>] (show_stack+0x18/0x1c)
r6:c04493f1 r5:00000009 r4:00000000 r3:00400040
[<c0011c40>] (show_stack) from [<c038076c>] (dump_stack+0x74/0x90)
[<c03806f8>] (dump_stack) from [<c0024cc8>] (warn_slowpath_common+0x8c/0xb4)
r4:00000000 r3:c04dcd70
[<c0024c3c>] (warn_slowpath_common) from [<c0024d14>] (warn_slowpath_null+0x24/0x2c)
r8:ddfd2f00 r7:de562e40 r6:00000057 r5:de6de3c0 r4:00000000
[<c0024cf0>] (warn_slowpath_null) from [<c00b5180>] (exit_mmap+0x1f4/0x208)
[<c00b4f8c>] (exit_mmap) from [<c0022724>] (mmput+0x48/0x100)
r6:de6de3c0 r5:00000000 r4:de6de3c0
[<c00226dc>] (mmput) from [<c00cf640>] (flush_old_exec+0x4c8/0x5d8)
r5:de475500 r4:de6de3c0
[<c00cf178>] (flush_old_exec) from [<c010b014>] (load_elf_binary+0x29c/0x100c)
r10:ddfd2e00 r9:00000080 r8:ddc41a00 r7:00000001 r6:de7cb9b4 r5:ddfd2f00
r4:de7cb980 r3:ddc2e000
[<c010ad78>] (load_elf_binary) from [<c00ce770>] (search_binary_handler+0xa0/0x254)
r10:c051880c r9:00000001 r8:c051880c r7:c04e0090 r6:c04dfa98 r5:fffffff8
r4:ddfd2f00
[<c00ce6d0>] (search_binary_handler) from [<c010a9b0>] (load_script+0x200/0x210)
r10:c051880c r9:00000001 r8:c051880c r7:c04e0074 r6:c04dfa98 r5:00000000
r4:ddfd2f00 r3:ddc2e000
[<c010a7b0>] (load_script) from [<c00ce770>] (search_binary_handler+0xa0/0x254)
r5:fffffffe r4:ddfd2f00
[<c00ce6d0>] (search_binary_handler) from [<c00cfe98>] (do_execveat_common+0x454/0x5b0)
r10:de54e710 r9:de562e7c r8:00000000 r7:00000000 r6:de630000 r5:0000020a
r4:ddfd2f00 r3:c04dbfd4
[<c00cfa44>] (do_execveat_common) from [<c00d0028>] (do_execve+0x34/0x3c)
r10:00000000 r9:ddc2e000 r8:c000eee4 r7:0000000b r6:bef53908 r5:bef53a98
r4:00017688
[<c00cfff4>] (do_execve) from [<c00d0278>] (SyS_execve+0x24/0x28)
[<c00d0254>] (SyS_execve) from [<c000ed40>] (ret_fast_syscall+0x0/0x34)
r5:00017688 r4:bef53a98
---[ end trace 04209299a07b5227 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 522 at mm/mmap.c:2859 exit_mmap+0x1f4/0x208()
Modules linked in:
CPU: 0 PID: 522 Comm: rcS Tainted: G W 3.19.0-rc5-next-20150120 #623
Hardware name: kzm9g
Backtrace:
[<c0011ab8>] (dump_backtrace) from [<c0011c58>] (show_stack+0x18/0x1c)
r6:c04493f1 r5:00000009 r4:00000000 r3:00400000
[<c0011c40>] (show_stack) from [<c038076c>] (dump_stack+0x74/0x90)
[<c03806f8>] (dump_stack) from [<c0024cc8>] (warn_slowpath_common+0x8c/0xb4)
r4:00000000 r3:c04dcd70
[<c0024c3c>] (warn_slowpath_common) from [<c0024d14>] (warn_slowpath_null+0x24/0x2c)
r8:ddfd2d00 r7:de6de3c0 r6:00000051 r5:de562e40 r4:00000000
[<c0024cf0>] (warn_slowpath_null) from [<c00b5180>] (exit_mmap+0x1f4/0x208)
[<c00b4f8c>] (exit_mmap) from [<c0022724>] (mmput+0x48/0x100)
r6:de562e40 r5:00000000 r4:de562e40
[<c00226dc>] (mmput) from [<c00cf640>] (flush_old_exec+0x4c8/0x5d8)
r5:de475500 r4:de562e40
[<c00cf178>] (flush_old_exec) from [<c010b014>] (load_elf_binary+0x29c/0x100c)
r10:ddfd2b00 r9:00000080 r8:de7cf4c0 r7:00000001 r6:de7d4634 r5:ddfd2d00
r4:de7d4600 r3:ddc2e000
[<c010ad78>] (load_elf_binary) from [<c00ce770>] (search_binary_handler+0xa0/0x254)
r10:c051880c r9:00000001 r8:c051880c r7:c04e0090 r6:c04dfa98 r5:fffffff8
r4:ddfd2d00
[<c00ce6d0>] (search_binary_handler) from [<c010a9b0>] (load_script+0x200/0x210)
r10:c051880c r9:00000001 r8:c051880c r7:c04e0074 r6:c04dfa98 r5:00000000
r4:ddfd2d00 r3:ddc2e000
[<c010a7b0>] (load_script) from [<c00ce770>] (search_binary_handler+0xa0/0x254)
r5:fffffffe r4:ddfd2d00
[<c00ce6d0>] (search_binary_handler) from [<c00cfe98>] (do_execveat_common+0x454/0x5b0)
r10:de54e768 r9:de6de3fc r8:00000000 r7:00000000 r6:de638000 r5:0000020a
r4:ddfd2d00 r3:c04dbfd4
[<c00cfa44>] (do_execveat_common) from [<c00d0028>] (do_execve+0x34/0x3c)
r10:00000000 r9:ddc2e000 r8:c000eee4 r7:0000000b r6:00021884 r5:00021874
r4:00021884
[<c00cfff4>] (do_execve) from [<c00d0278>] (SyS_execve+0x24/0x28)
[<c00d0254>] (SyS_execve) from [<c000ed40>] (ret_fast_syscall+0x0/0x34)
r5:00021844 r4:00021874
---[ end trace 04209299a07b5228 ]---
------------[ cut here ]------------
...
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