Hi,
On Tue, May 20, 2014 at 5:29 PM, Mel Gorman <mgor...@suse.de> wrote:
> On Tue, May 20, 2014 at 02:46:47PM +0530, Prabhakar Lad wrote:
>> Hi Sekhar,
>>
>> On Tue, May 20, 2014 at 1:43 PM, Sekhar Nori <nsek...@ti.com> wrote:
>> > On Tuesday 20 May 2014 12:49 PM, Prabhakar Lad wrote:
>> >> Hi,
>> >>
>> >> On Tue, May 20, 2014 at 12:08 AM, Kevin Hilman <khil...@linaro.org> wrote:
>> >>> As found by my automated boot tester[1], dm365 EVM and da850 EVM started
>> >>> failing boot tests in today's linux-next.
>> >>>
>> >>> I haven't had the time to bisect, but it appears to be related to some
>> >>> devres failures in the EMAC driver. Full boot log below for the
>> >>> da850evm (the dm365 fault looks the same.)
>> >>>
>> >> I too hit this issue, this was introduced with commit id:
>> >> e194312854edc22a2faf1931b3c0608fe20cb969 (drivers: net:
>> >> davinci_cpdma: Convert kzalloc() to devm_kzalloc().)
>> >> Reverting this patch fixes it.
>> >> From the outset patch looks good, not sure why exactly it is failing.
>> >
>> > Following patch seems to help. I will post it for review after some more
>> > analysis.
>> >
>> I am not sure if you hit the following issue later fixing above one,
>> I see following issue on DA850 evm,
>>
>> git bisect points me to
>> commit id: 975c3a671f11279441006a29a19f55ccc15fb320
>> ( mm: non-atomically mark page accessed during page cache allocation
>> where possible)
>>
>> Unable to handle kernel paging request at virtual address 30e03501
>> pgd = c68cc000
>> [30e03501] *pgd=00000000
>> Internal error: Oops: 1 [#1] PREEMPT ARM
>> Modules linked in:
>> CPU: 0 PID: 1015 Comm: network.sh Not tainted 3.15.0-rc5-00323-g975c3a6 #9
>> task: c70c4e00 ti: c73d0000 task.ti: c73d0000
>> PC is at init_page_accessed+0xc/0x24
>> LR is at shmem_write_begin+0x54/0x60
>> pc : [<c0088aa0>] lr : [<c00923e8>] psr: 20000013
>
> What line does this address correspond to according to addr2line? It's not
> a NULL pointer exception obviously because the data address does not match
> up and there is a check for NULL before calling init_page_accessed. The
> obvious guess would be that this is due to an uninitialised page pointer
> on the stack and shmem_getpage_gfp() returning before it gets initialised.
>
> Could you try this please?
>
> diff --git a/mm/filemap.c b/mm/filemap.c
> index 2a7b9d1..0691481 100644
> --- a/mm/filemap.c
> +++ b/mm/filemap.c
> @@ -2459,7 +2459,7 @@ ssize_t generic_perform_write(struct file *file,
> flags |= AOP_FLAG_UNINTERRUPTIBLE;
>
> do {
> - struct page *page;
> + struct page *page = NULL;
> unsigned long offset; /* Offset into pagecache page */
> unsigned long bytes; /* Bytes to write to page */
> size_t copied; /* Bytes copied from user */
This patch fixes the issue now I am able to boot it back again via NFS,
you can add:
Reported-and-Tested-by: Lad, Prabhakar <prabhakar.cse...@gmail.com>
Sekhar,
I am not sure why this didnt work on your side you can find the boot log at [1],
I tested this on latest next.
Regards,
--Prabhakar Lad
[1] Boot Log
U-Boot SPL 2013.01-00010-g25dc42f (Jan 22 2013 - 12:26:23)
SF: Detected M25P64 with page size 64 KiB, total 8 MiB
U-Boot 2013.01-00010-g25dc42f (Jan 22 2013 - 12:26:23)
I2C: ready
DRAM: 128 MiB
WARNING: Caches not enabled
MMC: davinci: 0
SF: Detected M25P64 with page size 64 KiB, total 8 MiB
In: serial
Out: serial
Err: serial
SF: Detected M25P64 with page size 64 KiB, total 8 MiB
Default using MAC address from environment
Default using MAC address from environment
Net: DaVinci-EMAC
Hit any key to stop autoboot: 0
U-Boot >
U-Boot >
U-Boot >
U-Boot > tftp uImage;bootm
Using DaVinci-EMAC device
TFTP from server 169.254.243.186; our IP address is 169.254.243.185
Filename 'uImage'.
Load address: 0xc0700000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
#################################################################
############################
1.3 MiB/s
done
Bytes transferred = 2472672 (25bae0 hex)
## Booting kernel from Legacy Image at c0700000 ...
Image Name: Linux-3.15.0-rc5-next-20140520-0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2472608 Bytes = 2.4 MiB
Load Address: c0008000
Entry Point: c0008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0x0
Linux version 3.15.0-rc5-next-20140520-00001-g68d7f74-dirty
(prabhakar@tango-charlie) (gcc version 4.4.1 (Sourcery G++ Lite
2009q3-67) ) #2 PREEM4
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
CPU: VIVT data cache, VIVT instruction cache
Machine: DaVinci DA850/OMAP-L138/AM18x EVM
Memory policy: Data cache writethrough
DaVinci da850/omap-l138 variant 0x0
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 30480
Kernel command line: mem=120M console=ttyS2,115200n8 root=/dev/nfs rw
nfsroot=169.254.243.186:/home/prabhakar/work/ti/nfs/da850
ip=169.254.243.185
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 116948K/122880K available (3323K kernel code, 191K rwdata,
948K rodata, 151K init, 174K bss, 5932K reserved)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
vmalloc : 0xc8000000 - 0xff000000 ( 880 MB)
lowmem : 0xc0000000 - 0xc7800000 ( 120 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.text : 0xc0008000 - 0xc0434014 (4273 kB)
.init : 0xc0435000 - 0xc045adc4 ( 152 kB)
.data : 0xc045c000 - 0xc048bec0 ( 192 kB)
.bss : 0xc048becc - 0xc04b7998 ( 175 kB)
SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
NR_IRQS:245
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns
Console: colour dummy device 80x30
Calibrating delay loop... 148.88 BogoMIPS (lpj=744448)
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
Setting up static identity map for 0xc0345168 - 0xc03451c0
devtmpfs: initialized
pinctrl core: initialized pinctrl subsystem
regulator-dummy: no parameters
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
MUX: initialized GPIO4_0
MUX: Setting register GPIO4_0
PINMUX10 (0x00000028) = 0x00222222 -> 0x80222222
MUX: initialized GPIO4_1
MUX: Setting register GPIO4_1
PINMUX10 (0x00000028) = 0x80222222 -> 0x88222222
MUX: initialized AHCLKX
MUX: Setting register AHCLKX
PINMUX0 (0x00000000) = 0x44080000 -> 0x44180000
MUX: initialized ACLKX
MUX: Setting register ACLKX
PINMUX0 (0x00000000) = 0x44180000 -> 0x44180010
MUX: initialized AFSX
MUX: Setting register AFSX
PINMUX0 (0x00000000) = 0x44180010 -> 0x44181010
MUX: initialized AHCLKR
MUX: Setting register AHCLKR
PINMUX0 (0x00000000) = 0x44181010 -> 0x44111010
MUX: initialized ACLKR
MUX: Setting register ACLKR
PINMUX0 (0x00000000) = 0x44111010 -> 0x44111011
MUX: initialized AFSR
MUX: Setting register AFSR
PINMUX0 (0x00000000) = 0x44111011 -> 0x44111111
MUX: initialized AMUTE
MUX: Setting register AMUTE
PINMUX0 (0x00000000) = 0x44111111 -> 0x41111111
MUX: initialized AXR_11
MUX: Setting register AXR_11
PINMUX1 (0x00000004) = 0x00000000 -> 0x00010000
MUX: initialized AXR_12
MUX: Setting register AXR_12
PINMUX1 (0x00000004) = 0x00010000 -> 0x00011000
MUX: initialized LCD_D_0
MUX: Setting register LCD_D_0
PINMUX17 (0x00000044) = 0x00000000 -> 0x00000020
MUX: initialized LCD_D_1
MUX: Setting register LCD_D_1
PINMUX17 (0x00000044) = 0x00000020 -> 0x00000022
MUX: initialized LCD_D_2
MUX: Setting register LCD_D_2
PINMUX16 (0x00000040) = 0x00000000 -> 0x20000000
MUX: initialized LCD_D_3
MUX: Setting register LCD_D_3
PINMUX16 (0x00000040) = 0x20000000 -> 0x22000000
MUX: initialized LCD_D_4
MUX: Setting register LCD_D_4
PINMUX16 (0x00000040) = 0x22000000 -> 0x22200000
MUX: initialized LCD_D_5
MUX: Setting register LCD_D_5
PINMUX16 (0x00000040) = 0x22200000 -> 0x22220000
MUX: initialized LCD_D_6
MUX: Setting register LCD_D_6
PINMUX16 (0x00000040) = 0x22220000 -> 0x22222000
MUX: initialized LCD_D_7
MUX: Setting register LCD_D_7
PINMUX16 (0x00000040) = 0x22222000 -> 0x22222200
MUX: initialized LCD_D_8
MUX: Setting register LCD_D_8
PINMUX18 (0x00000048) = 0x00000000 -> 0x00000020
MUX: initialized LCD_D_9
MUX: Setting register LCD_D_9
PINMUX18 (0x00000048) = 0x00000020 -> 0x00000022
MUX: initialized LCD_D_10
MUX: Setting register LCD_D_10
PINMUX17 (0x00000044) = 0x00000022 -> 0x20000022
MUX: initialized LCD_D_11
MUX: Setting register LCD_D_11
PINMUX17 (0x00000044) = 0x20000022 -> 0x22000022
MUX: initialized LCD_D_12
MUX: Setting register LCD_D_12
PINMUX17 (0x00000044) = 0x22000022 -> 0x22200022
MUX: initialized LCD_D_13
MUX: Setting register LCD_D_13
PINMUX17 (0x00000044) = 0x22200022 -> 0x22220022
MUX: initialized LCD_D_14
MUX: Setting register LCD_D_14
PINMUX17 (0x00000044) = 0x22220022 -> 0x22222022
MUX: initialized LCD_D_15
MUX: Setting register LCD_D_15
PINMUX17 (0x00000044) = 0x22222022 -> 0x22222222
MUX: initialized LCD_PCLK
MUX: Setting register LCD_PCLK
PINMUX18 (0x00000048) = 0x00000022 -> 0x02000022
MUX: initialized LCD_HSYNC
MUX: Setting register LCD_HSYNC
PINMUX19 (0x0000004c) = 0x00000000 -> 0x00000002
MUX: initialized LCD_VSYNC
MUX: Setting register LCD_VSYNC
PINMUX19 (0x0000004c) = 0x00000002 -> 0x00000022
MUX: initialized NLCD_AC_ENB_CS
MUX: Setting register NLCD_AC_ENB_CS
PINMUX19 (0x0000004c) = 0x00000022 -> 0x02000022
MUX: initialized GPIO2_8
MUX: Setting register GPIO2_8
PINMUX5 (0x00000014) = 0x00110110 -> 0x80110110
MUX: initialized GPIO2_15
MUX: Setting register GPIO2_15
PINMUX5 (0x00000014) = 0x80110110 -> 0x80110118
MUX: initialized RTC_ALARM
MUX: Setting register RTC_ALARM
PINMUX0 (0x00000000) = 0x41111111 -> 0x21111111
edma-dma-engine edma-dma-engine.0: TI EDMA DMA engine driver
edma-dma-engine edma-dma-engine.1: TI EDMA DMA engine driver
VDCDC1: 3200 <--> 3300 mV at 3300 mV
VDCDC2: 1750 <--> 3300 mV at 3300 mV
VDCDC3: 950 <--> 1350 mV at 1200 mV
LDO1: 1800 mV
LDO2: 1150 <--> 1300 mV at 1200 mV
pca953x 1-0020: failed reading register
pca953x: probe of 1-0020 failed with error -121
pca953x 1-0021: interrupt support not compiled in
Switched to clocksource timer0_1
NET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP: reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 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.
EMAC: MII PHY configured, RMII PHY will not be functional
MUX: initialized GPIO2_6
MUX: Setting register GPIO2_6
PINMUX6 (0x00000018) = 0x00000000 -> 0x00000080
futex hash table entries: 256 (order: -1, 3072 bytes)
msgmni has been set to 228
io scheduler noop registered (default)
da8xx_lcdc da8xx_lcdc.0: found Sharp_LK043T1DG01 panel
Console: switching to colour frame buffer device 60x34
Serial: 8250/16550 driver, 3 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25, base_baud = 9375000)
is a 16550A
serial8250.1: ttyS1 at MMIO 0x1d0c000 (irq = 53, base_baud = 8250000)
is a 16550A
console [ttyS2] disabled
serial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000)
is a 16550A
console [ttyS2] enabled
brd: module loaded
davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
davinci_mdio davinci_mdio.0: detected phy mask fffffffe
libphy: davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver unknown
input: gpio-keys-polled as /devices/platform/gpio-keys-polled.1/input/input0
i2c /dev entries driver
TCP: cubic registered
NET: Registered protocol family 17
LDO2: incomplete constraints, leaving on
LDO1: incomplete constraints, leaving on
VDCDC3: incomplete constraints, leaving on
VDCDC2: incomplete constraints, leaving on
VDCDC1: incomplete constraints, leaving on
console [netcon0] enabled
netconsole: network logging started
davinci_emac davinci_emac.1: using random MAC addr: 56:35:07:3f:48:19
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
net eth0: Request IRQ 33
net eth0: Request IRQ 34
net eth0: Request IRQ 35
net eth0: Request IRQ 36
davinci_mdio davinci_mdio.0: resetting idled controller
net eth0: attached PHY driver [Generic PHY]
(mii_bus:phy_addr=davinci_mdio-0:00, id=7c0f1)
davinci_emac davinci_emac.1 eth0: Link is Up - 100Mbps/Full - flow control rx/tx
IP-Config: Guessing netmask 255.255.0.0
IP-Config: Complete:
device=eth0, hwaddr=56:35:07:3f:48:19, ipaddr=169.254.243.185,
mask=255.255.0.0, gw=255.255.255.255
host=169.254.243.185, domain=, nis-domain=(none)
bootserver=255.255.255.255, rootserver=169.254.243.186, rootpath=
VFS: Mounted root (nfs filesystem) on device 0:13.
devtmpfs: mounted
Freeing unused kernel memory: 148K (c0435000 - c045a000)
INIT: version 2.86 booting
Please wait: booting...
Starting udev
random: nonblocking pool is initialized
udevd (975): /proc/975/oom_adj is deprecated, please use
/proc/975/oom_score_adj instead.
udev: starting version 141
udevd[975]: inotify_add_watch(3, (null), 10) failed: Bad address
Root filesystem already rw, not remounting
WARNING: Couldn't open directory
/lib/modules/3.15.0-rc5-next-20140520-00001-g68d7f74-dirty: No such
file or directory
FATAL: Could not open
/lib/modules/3.15.0-rc5-next-20140520-00001-g68d7f74-dirty/modules.dep.temp
for writing: No such file or directory
modprobe: FATAL: Could not load
/lib/modules/3.15.0-rc5-next-20140520-00001-g68d7f74-dirty/modules.dep:
No such file or directory
modprobe: FATAL: Could not load
/lib/modules/3.15.0-rc5-next-20140520-00001-g68d7f74-dirty/modules.dep:
No such file or directory
root: mount: mounting rootfs on / failed: No such file or directory
root: mount: mounting usbfs on /proc/bus/usb failed: No such file or directory
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces... done.
Sat Dec 12 20:53:00 UTC 2009
INIT: Entering runlevel: 5
Starting telnet daemon.
modprobe: FATAL: Could not load
/lib/modules/3.15.0-rc5-next-20140520-00001-g68d7f74-dirty/modules.dep:
No such file or directory
Starting syslogd/klogd: done
Starting thttpd.
_____ _____ _ _
| _ |___ ___ ___ ___ | _ |___ ___ |_|___ ___| |_
| | _| .'| . | . | | __| _| . | | | -_| _| _|
|__|__|_| |__,|_ |___| |__| |_| |___|_| |___|___|_|
|___| |___|
Arago Project http://arago-project.org da850-omapl138-evm ttyS2
Arago 2009.11 da850-omapl138-evm ttyS2
da850-omapl138-evm login: root
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