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Author Topic: Guruplug Wifi -- utterly broken?  (Read 5554 times)
creeble
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« on: September 03, 2010, 09:48:41 AM »

I know there are heat problems with the Guru.  But even without them, is the wifi driver / chip utterly broken?

Read: http://www.newit.co.uk/forum/index.php?topic=455.0

I'm having exactly the same problems.  Random lockups and crashes of kernel code (not specifically from the driver, however) ONLY when I'm using wifi.

Presumably the 8688 Marvell chip is widely-used enough that this isn't the problem.  Which means the driver is?

I have no, zero NONE problems using wired Ethernet, even on my very warm guru.

Anyone else?
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strav
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« Reply #1 on: October 31, 2010, 11:21:18 PM »

Wifi in client mode is certainly broken. On newIt's forum, there's a thread named "My guruplug has no problems and is working", guess what? With one exception, each and every post out there mention that wifi and bluetooth are disabled.

Seems the only hope is in a better libertas driver.  We'll have to beg Marvell or a some dedicated developper for that.
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hargoth
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« Reply #2 on: November 10, 2010, 01:07:19 PM »

WIFI in hospot mode works well, but weak signal.
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jpenston
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« Reply #3 on: November 11, 2010, 09:56:04 AM »

Does anyone know of any patched libertas drivers or 8688 firmware?

I can certainly confirm that the Guruplug will not work for very long as a WiFi client with the factory distribution. I have also tried recompliling using the sources published with no difference.

I created a really simple script. I have two Guruplugs and the same happens on both. When I run this on a Guruplug connected ONLY via wifi to my home router, the Guruplug crashes - typically after 1 - 2 minutes. There is no error when using ethernet of course!

Code:
#!/bin/sh

while [ 1 ]
do
wget ftp://192.168.1.101/Downloads/datasheet.pdf
rm datasheet.pdf
echo "done"
done
exit 0

The same error occurs when using curl to download instead of wget (so it is not the wget package), but it works when I copy the file from one directory to another (ie eliminating the wifi element of the test).

This is the failure I see
Code:
--2010-11-11 16:42:55--  ftp://192.168.1.100/Downloads/datasheetUnable to handle kernel NULL pointer dereference at virtual address 0000006e
.pdf
          pgd = de7d0000
 => `datasheet.p[0000006e] *pgd=1e756031df'
Connecting , *pte=00000000to 192.168.1.100, *ppte=00000000:21... connected
.
Logging in asInternal error: Oops: 17 [#1] PREEMPT
last sysfs file: /sys/devices/platform/leds-gpio/leds/plug2l:green:wmode/brightness
Modules linked in: libertas_sdio libertas sco bridge stp llc btmrvl_sdio bnep btmrvl rfcomm l2cap xt_tcpudp iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables ipv6 bluetooth [last unloaded: uap8xxx]
CPU: 0    Not tainted  (2.6.32-00007-g56678ec #1)
PC is at dnotify_flush+0x14/0x12c
LR is at filp_close+0x58/0x78
pc : [<c00eede8>]    lr : [<c00bdaa0>]    psr: 60000013
sp : de795f70  ip : de795f90  fp : beb828b4
r10: 00000017  r9 : de794000  r8 : de759580
r7 : df04e000  r6 : df04e000  r5 : de759580  r4 : 00000000
r3 : de529e40  r2 : de794000  r1 : df04e000  r0 : de759580
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 0005397f  Table: 1e7d0000  DAC: 00000015
Process wget (pid: 2342, stack limit = 0xde794270)
Stack: (0xde795f70 to 0xde796000)
5f60:                                     de759580 df04e000 00000000 c00bdaa0
5f80: 00000001 00000003 de794000 c00bec9c 00000000 00000003 000452e8 00000006
5fa0: c002db44 c002d9c0 00000000 00000003 00000003 402f46c7 00000000 000473be
5fc0: 00000000 00000003 000452e8 00000006 00000000 00000000 00000017 beb828b4
5fe0: 0004e8e0 beb827e0 0000afec 40284cbc 60000010 00000003 00000000 00000000
[<c00eede8>] (dnotify_flush+0x14/0x12c) from [<c00bdaa0>] (filp_close+0x58/0x78)
[<c00bdaa0>] (filp_close+0x58/0x78) from [<c00bec9c>] (sys_close+0x98/0xf4)
[<c00bec9c>] (sys_close+0x98/0xf4) from [<c002d9c0>] (ret_fast_syscall+0x0/0x28)
Code: e590300c e1a05000 e1a06001 e593400c (e1d436be)
 anonymous ...
Error in server response, closing control connection.
---[ end trace 53f9cf2a2fdf54a7 ]---

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:last sysfs file: /sys/devices/platform/leds-gpio/leds/plug2l:green:wmode/brightness

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:Internal error: Oops: 17 [#1] PREEMPT
./test_guru.sh: line 12:  2342 Segmentation fault      wget ftp://192.168.1.100/Downloads/datasheet.pdf

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:Stack: (0xde795f70 to 0xde796000)

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:Process wget (pid: 2342, stack limit = 0xde794270)

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:5f60:                                     de759580 df04e000 00000000 c00bdaa0

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:5f80: 00000001 00000003 de794000 c00bec9c 00000000 00000003 000452e8 00000006

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:5fa0: c002db44 c002d9c0 00000000 00000003 00000003 402f46c7 00000000 000473be
rm: cannot remove `datasheet.pdf': No such file or directory
done

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:5fc0: 00000000 00000003 000452e8 00000006 00000000 00000000 00000017 beb828b4

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:5fe0: 0004e8e0 beb827e0 0000afec 40284cbc 60000010 00000003 00000000 00000000

Message from syslogd@guruplug-debian at Nov 11 16:42:56 ...
 kernel:Code: e590300c e1a05000 e1a06001 e593400c (e1d436be)
--2010-11-11 16:42:56--  ftp://192.168.1.100/Downloads/datasheet.pdf
           => `datasheet.pdf'
Connecting to 192.168.1.100:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done.    ==> PWD ... done.
==> TYPE I ... done.  ==> CWD /Downloads ... done.
==> SIZE datasheet.pdf ... 616391
==> PASV ... done.    ==> RETR datasheet.pdf ... done.
Length: 616391 (602K)

99% [=====================================> ] 615,936     --.-K/s  eta 0s      ^C

As you can see, this crash hasn't taken the whole unit down, just hung. Sometimes, the whole thing freezes and I need to reset.

Here is the dmesg that follows

Code:
dmesg
Linux version 2.6.32-00007-g56678ec (root@msi-linux-build.marvell.com) (gcc version 4.1.2 20070925 (Red Hat 4.1.2-33.fa1)) #1 PREEMPT Mon Feb 8 03:49:55 PST 2010
CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
CPU: VIVT data cache, VIVT instruction cache
Machine: Marvell Plug2L Reference Board
Memory policy: ECC disabled, Data cache writeback
On node 0 totalpages: 131072
free_area_init_node: node 0, pgdat c05881c8, node_mem_map c065f000
  Normal zone: 1024 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 130048 pages, LIFO batch:31
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
Kernel command line: console=ttyS0,115200 ubi.mtd=2 root=ubi0:rootfs rootfstype=ubifs
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: 256MB 256MB = 512MB total
Memory: 513024KB available (5144K code, 1034K data, 148K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:114
Console: colour dummy device 80x30
Calibrating delay loop... 1192.75 BogoMIPS (lpj=5963776)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
Kirkwood: MV88F6281-A0, TCLK=200000000.
Feroceon L2: Cache support initialised.
initial MPP regs: 01111111 11113311 33331111 33333333 00003333 00000222 00000000
  final MPP regs: 01111111 11113311 33331111 33333333 00003333 00000222 00000000
bio: create slab <bio-0> at 0
vgaarb: loaded
SCSI subsystem initialized
libata version 3.00 loaded.
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
cfg80211: Using static regulatory domain info
cfg80211: Regulatory domain: US
(start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
(2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2700 mBm)
(5170000 KHz - 5190000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
(5190000 KHz - 5210000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
(5210000 KHz - 5230000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
(5230000 KHz - 5330000 KHz @ 40000 KHz), (600 mBi, 2300 mBm)
(5735000 KHz - 5835000 KHz @ 40000 KHz), (600 mBi, 3000 mBm)
cfg80211: Calling CRDA for country: US
Switching to clocksource orion_clocksource
NET: Registered protocol family 2
IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
TCP reno registered
NET: Registered protocol family 1
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
JFFS2 version 2.2. (NAND) 2001-2006 Red Hat, Inc.
JFS: nTxBlock = 4010, nTxLock = 32080
msgmni has been set to 1002
alg: No test for stdrng (krng)
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0xf1012000 (irq = 33) is a 16550A
console [ttyS0] enabled
brd: module loaded
loop: module loaded
sata_mv sata_mv.0: version 1.28
sata_mv sata_mv.0: slots 32 ports 1
scsi0 : sata_mv
ata1: SATA max UDMA/133 irq 21
NAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB 3,3V 8-bit)
Scanning device for bad blocks
Creating 3 MTD partitions on "orion_nand":
0x000000000000-0x000000100000 : "u-boot"
0x000000100000-0x000000500000 : "uImage"
0x000000500000-0x000020000000 : "root"
UBI: attaching mtd2 to ubi0
UBI: physical eraseblock size:   131072 bytes (128 KiB)
UBI: logical eraseblock size:    129024 bytes
UBI: smallest flash I/O unit:    2048
UBI: sub-page size:              512
UBI: VID header offset:          512 (aligned 512)
UBI: data offset:                2048
ata1: SATA link down (SStatus 0 SControl F300)
UBI: attached mtd2 to ubi0
UBI: MTD device name:            "root"
UBI: MTD device size:            507 MiB
UBI: number of good PEBs:        4056
UBI: number of bad PEBs:         0
UBI: max. allowed volumes:       128
UBI: wear-leveling threshold:    4096
UBI: number of internal volumes: 1
UBI: number of user volumes:     1
UBI: available PEBs:             0
UBI: total number of reserved PEBs: 4056
UBI: number of PEBs reserved for bad PEB handling: 40
UBI: max/mean erase counter: 3/1
UBI: image sequence number: -1
UBI: background thread "ubi_bgt0d" started, PID 454
MV-643xx 10/100/1000 ethernet driver version 1.4
mv643xx_eth smi: probed
net eth0: port 0 with MAC address 00:00:00:00:00:00
net eth1: port 0 with MAC address 00:00:00:00:00:00
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
orion-ehci orion-ehci.0: Marvell Orion EHCI
orion-ehci orion-ehci.0: new USB bus registered, assigned bus number 1
orion-ehci orion-ehci.0: irq 19, io mem 0xf1050000
orion-ehci orion-ehci.0: USB 2.0 started, EHCI 1.00
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
usbcore: registered new interface driver ums-datafab
usbcore: registered new interface driver ums-freecom
usbcore: registered new interface driver ums-jumpshot
usbcore: registered new interface driver ums-sddr09
usbcore: registered new interface driver ums-sddr55
mice: PS/2 mouse device common for all mice
rtc-mv rtc-mv: rtc core: registered rtc-mv as rtc0
i2c /dev entries driver
cpuidle: using governor ladder
cpuidle: using governor menu
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
mmc0: mvsdio driver initialized, lacking card detect (fall back to polling)
Registered led device: plug2l:red:health
Registered led device: plug2l:green:health
Registered led device: plug2l:red:wmode
Registered led device: plug2l:green:wmode
mv_xor_shared mv_xor_shared.0: Marvell shared XOR driver
mv_xor_shared mv_xor_shared.1: Marvell shared XOR driver
mmc0: new high speed SDIO card at address 0001
mv_xor mv_xor.0: Marvell XOR: ( xor cpy )
mv_xor mv_xor.1: Marvell XOR: ( xor fill cpy )
mv_xor mv_xor.2: Marvell XOR: ( xor cpy )
mv_xor mv_xor.3: Marvell XOR: ( xor fill cpy )
usbcore: registered new interface driver usbhid
usbhid: v2.6:USB HID core driver
oprofile: using timer interrupt.
TCP cubic registered
NET: Registered protocol family 17
lib80211: common routines for IEEE802.11 drivers
lib80211_crypt: registered algorithm 'NULL'
Gating clock of unused units
before: 0x00dfc3fd
 after: 0x00cf41d9
rtc-mv rtc-mv: setting system clock to 2010-11-11 16:51:22 UTC (1289494282)
usb 1-1: new high speed USB device using orion-ehci and address 2
UBIFS: recovery needed
UBIFS: recovery completed
UBIFS: mounted UBI device 0, volume 0, name "rootfs"
UBIFS: file system size:   516225024 bytes (504126 KiB, 492 MiB, 4001 LEBs)
UBIFS: journal size:       9033728 bytes (8822 KiB, 8 MiB, 71 LEBs)
UBIFS: media format:       w4/r0 (latest is w4/r0)
UBIFS: default compressor: zlib
UBIFS: reserved for root:  0 bytes (0 KiB)
VFS: Mounted root (ubifs filesystem) on device 0:13.
Freeing init memory: 148K
usb 1-1: configuration #1 chosen from 1 choice
hub 1-1:1.0: USB hub found
hub 1-1:1.0: 4 ports detected
usb 1-1.1: new high speed USB device using orion-ehci and address 3
usb 1-1.1: configuration #1 chosen from 1 choice
scsi1 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 3
usb-storage: waiting for device to settle before scanning
Bluetooth: Core ver 2.15
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
libertas_sdio mmc0:0001:1: firmware: requesting sd8688_helper.bin
libertas: can't load helper firmware
libertas: failed to load helper firmware
libertas_sdio: probe of mmc0:0001:1 failed with error -2
Bluetooth: vendor=0x2df, device=0x9105, class=255, fn=2
btmrvl_sdio mmc0:0001:2: firmware: requesting sd8688_helper.bin
btmrvl_sdio_download_helper: request_firmware(helper) failed, error code = -2
btmrvl_sdio_download_fw: Failed to download helper!
btmrvl_sdio_probe: Downloading firmware failed!
scsi 1:0:0:0: Direct-Access     Generic  STORAGE DEVICE   9909 PQ: 0 ANSI: 0
sd 1:0:0:0: Attached scsi generic sg0 type 0
sd 1:0:0:0: [sda] Attached SCSI removable disk
scsi 1:0:0:1: Direct-Access     Generic  STORAGE DEVICE   9909 PQ: 0 ANSI: 0
sd 1:0:0:1: Attached scsi generic sg1 type 0
sd 1:0:0:1: [sdb] Attached SCSI removable disk
usb-storage: device scan complete
NET: Registered protocol family 10
ADDRCONF(NETDEV_UP): eth0: link is not ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
uap_probe: vendor=0x02DF device=0x9104 class=0 function=1
uap_sdio mmc0:0001:1: firmware: requesting mrvl/helper_sd.bin
uap_sdio mmc0:0001:1: firmware: requesting mrvl/sd8688_ap.bin
UAP FW is active
ADDRCONF(NETDEV_UP): uap0: link is not ready
ip_tables: (C) 2000-2006 Netfilter Core Team
nf_conntrack version 0.5.0 (8022 buckets, 32088 max)
CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or
sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
Bluetooth: L2CAP ver 2.14
Bluetooth: L2CAP socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: vendor=0x2df, device=0x9105, class=255, fn=2
Bridge firewalling registered
Bluetooth: SCO (Voice Link) ver 0.6
Bluetooth: SCO socket layer initialized
reset hw
uap_func_shutdown:Hardware is not ready!
libertas_sdio: Libertas SDIO driver
libertas_sdio: Copyright Pierre Ossman
libertas_sdio mmc0:0001:1: firmware: requesting sd8688_helper.bin
libertas_sdio mmc0:0001:1: firmware: requesting sd8688.bin
libertas: 00:24:23:21:98:65, fw 10.38.3p49, cap 0x00000303
libertas: wlan0: Marvell WLAN 802.11 adapter
ADDRCONF(NETDEV_UP): wlan0: link is not ready
ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
warning: `ntpd' uses 32-bit capabilities (legacy support in use)
pan0: no IPv6 routers present
wlan0: no IPv6 routers present
Unable to handle kernel NULL pointer dereference at virtual address 0000006e
pgd = de7d0000
[0000006e] *pgd=1e756031, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT
last sysfs file: /sys/devices/platform/leds-gpio/leds/plug2l:green:wmode/brightness
Modules linked in: libertas_sdio libertas sco bridge stp llc btmrvl_sdio bnep btmrvl rfcomm l2cap xt_tcpudp iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables ipv6 bluetooth [last unloaded: uap8xxx]
CPU: 0    Not tainted  (2.6.32-00007-g56678ec #1)
PC is at dnotify_flush+0x14/0x12c
LR is at filp_close+0x58/0x78
pc : [<c00eede8>]    lr : [<c00bdaa0>]    psr: 60000013
sp : de795f70  ip : de795f90  fp : beb828b4
r10: 00000017  r9 : de794000  r8 : de759580
r7 : df04e000  r6 : df04e000  r5 : de759580  r4 : 00000000
r3 : de529e40  r2 : de794000  r1 : df04e000  r0 : de759580
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 0005397f  Table: 1e7d0000  DAC: 00000015
Process wget (pid: 2342, stack limit = 0xde794270)
Stack: (0xde795f70 to 0xde796000)
5f60:                                     de759580 df04e000 00000000 c00bdaa0
5f80: 00000001 00000003 de794000 c00bec9c 00000000 00000003 000452e8 00000006
5fa0: c002db44 c002d9c0 00000000 00000003 00000003 402f46c7 00000000 000473be
5fc0: 00000000 00000003 000452e8 00000006 00000000 00000000 00000017 beb828b4
5fe0: 0004e8e0 beb827e0 0000afec 40284cbc 60000010 00000003 00000000 00000000
[<c00eede8>] (dnotify_flush+0x14/0x12c) from [<c00bdaa0>] (filp_close+0x58/0x78)
[<c00bdaa0>] (filp_close+0x58/0x78) from [<c00bec9c>] (sys_close+0x98/0xf4)
[<c00bec9c>] (sys_close+0x98/0xf4) from [<c002d9c0>] (ret_fast_syscall+0x0/0x28)
Code: e590300c e1a05000 e1a06001 e593400c (e1d436be)
---[ end trace 53f9cf2a2fdf54a7 ]---
guruplug-debian:/home/rfs/media#

If I then take wlan0 down and plug an ethernet cable in and re-run the test, it will execute happily in its loop until I stop it.

Does anyone have the guruplug working in wifi client mode?
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jpenston
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« Reply #4 on: March 01, 2011, 04:12:43 PM »

anyone reading this who has not found the solution should check out the excellent work by Strav here
http://www.newit.co.uk/forum/index.php/topic,455.15.html

and here where he has written it up for the wiki
http://www.plugcomputer.org/plugwiki/index.php/Setting_GuruPlug_to_be_a_stable_WiFi_Client

With these changes made, my script (see above) can run for over 90 minutes without crashing the Guruplug where before it was not lasting more than 2 minutes.
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Fletch
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« Reply #5 on: March 01, 2011, 04:15:26 PM »

Apparently the Dreamplug ships with a newer driver.  It will be interesting to try that one when the Dreamplug rootfs is available somewhere.
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