#18958: Barrier Breaker i2c-tools segmentation fault
-----------------------+-----------------------------------
Reporter: anonymous | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone: Barrier Breaker 14.07
Component: packages | Version: Barrier Breaker 14.07
Keywords: i2c |
-----------------------+-----------------------------------
i2c-tools doesn't work on BB with i2c-tiny-usb (segfault).
{{{
BusyBox v1.22.1 (2014-09-20 22:01:35 CEST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
BARRIER BREAKER (14.07, r42625)
-----------------------------------------------------
* 1/2 oz Galliano Pour all ingredients into
* 4 oz cold Coffee an irish coffee mug filled
* 1 1/2 oz Dark Rum with crushed ice. Stir.
* 2 tsp. Creme de Cacao
-----------------------------------------------------
root@OpenWrt:~# insmod i2c-dev
root@OpenWrt:~# i2cdetect -l
Segmentation fault
root@OpenWrt:~# dmesg
[ 0.000000] Linux version 3.10.49 (bb@builder1) (gcc version 4.8.3
(OpenWrt/Linaro GCC 4.8-2014.04 r42625) ) #3 Wed Oct 1 14:00:51 CEST 2014
[ 0.000000] MyLoader: sysp=8a50ecd4, boardp=13565513, parts=9fd8a8bb
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU revision is: 00019374 (MIPS 24Kc)
[ 0.000000] SoC: Atheros AR9330 rev 1
[ 0.000000] Clocks: CPU:400.000MHz, DDR:400.000MHz, AHB:200.000MHz,
Ref:25.000MHz
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 04000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x00000000-0x03ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00000000-0x03ffffff]
[ 0.000000] On node 0 totalpages: 16384
[ 0.000000] free_area_init_node: node 0, pgdat 80334b60, node_mem_map
81000000
[ 0.000000] Normal zone: 128 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 16384 pages, LIFO batch:3
[ 0.000000] Primary instruction cache 64kB, VIPT, 4-way, linesize 32
bytes.
[ 0.000000] Primary data cache 32kB, 4-way, VIPT, cache aliases,
linesize 32 bytes
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 16256
[ 0.000000] Kernel command line: board=TL-WR703N
console=ttyATH0,115200 rootfstype=squashfs,jffs2 noinitrd
[ 0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768
bytes)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384
bytes)
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] Memory: 61076k/65536k available (2369k kernel code, 4460k
reserved, 621k data, 272k init, 0k highmem)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:51
[ 0.080000] Calibrating delay loop... 265.42 BogoMIPS (lpj=1327104)
[ 0.080000] pid_max: default: 32768 minimum: 301
[ 0.080000] Mount-cache hash table entries: 512
[ 0.090000] NET: Registered protocol family 16
[ 0.100000] MIPS: machine is TP-LINK TL-WR703N v1
[ 0.350000] bio: create slab <bio-0> at 0
[ 0.360000] Switching to clocksource MIPS
[ 0.370000] NET: Registered protocol family 2
[ 0.370000] TCP established hash table entries: 512 (order: 0, 4096
bytes)
[ 0.370000] TCP bind hash table entries: 512 (order: -1, 2048 bytes)
[ 0.380000] TCP: Hash tables configured (established 512 bind 512)
[ 0.380000] TCP: reno registered
[ 0.380000] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.390000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.400000] NET: Registered protocol family 1
[ 0.400000] PCI: CLS 0 bytes, default 32
[ 0.420000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.430000] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME)
(CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.440000] msgmni has been set to 119
[ 0.440000] io scheduler noop registered
[ 0.440000] io scheduler deadline registered (default)
[ 0.450000] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[ 0.460000] ar933x-uart: ttyATH0 at MMIO 0x18020000 (irq = 11) is a
AR933X UART
[ 0.470000] console [ttyATH0] enabled, bootconsole disabled
[ 0.480000] ath79-spi ath79-spi: master is unqueued, this is deprecated
[ 0.490000] m25p80 spi0.0: found w25q128, expected m25p80
[ 0.490000] m25p80 spi0.0: w25q128 (16384 Kbytes)
[ 0.500000] 5 tp-link partitions found on MTD device spi0.0
[ 0.500000] Creating 5 MTD partitions on "spi0.0":
[ 0.510000] 0x000000000000-0x000000020000 : "u-boot"
[ 0.520000] 0x000000020000-0x00000012e630 : "kernel"
[ 0.520000] mtd: partition "kernel" must either start or end on erase
block boundary or be smaller than an erase block -- forcing read-only
[ 0.530000] 0x00000012e630-0x000000ff0000 : "rootfs"
[ 0.540000] mtd: partition "rootfs" must either start or end on erase
block boundary or be smaller than an erase block -- forcing read-only
[ 0.550000] mtd: device 2 (rootfs) set to be root filesystem
[ 0.560000] 1 squashfs-split partitions found on MTD device rootfs
[ 0.560000] 0x0000003a0000-0x000000ff0000 : "rootfs_data"
[ 0.570000] 0x000000ff0000-0x000001000000 : "art"
[ 0.580000] 0x000000020000-0x000000ff0000 : "firmware"
[ 0.600000] libphy: ag71xx_mdio: probed
[ 1.150000] ag71xx ag71xx.0: connected to PHY at ag71xx-mdio.1:04
[uid=004dd041, driver=Generic PHY]
[ 1.160000] eth0: Atheros AG71xx at 0xb9000000, irq 4, mode:MII
[ 1.170000] TCP: cubic registered
[ 1.170000] NET: Registered protocol family 17
[ 1.170000] Bridge firewalling registered
[ 1.180000] 8021q: 802.1Q VLAN Support v1.8
[ 1.190000] VFS: Mounted root (squashfs filesystem) readonly on device
31:2.
[ 1.200000] Freeing unused kernel memory: 272K (8034c000 - 80390000)
[ 4.350000] usbcore: registered new interface driver usbfs
[ 4.350000] usbcore: registered new interface driver hub
[ 4.360000] usbcore: registered new device driver usb
[ 4.410000] SCSI subsystem initialized
[ 4.420000] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 4.430000] ehci-platform: EHCI generic platform driver
[ 4.430000] ehci-platform ehci-platform: EHCI Host Controller
[ 4.440000] ehci-platform ehci-platform: new USB bus registered,
assigned bus number 1
[ 4.450000] ehci-platform ehci-platform: irq 3, io mem 0x1b000000
[ 4.470000] ehci-platform ehci-platform: USB 2.0 started, EHCI 1.00
[ 4.470000] hub 1-0:1.0: USB hub found
[ 4.470000] hub 1-0:1.0: 1 port detected
[ 4.480000] usbcore: registered new interface driver usb-storage
[ 4.840000] usb 1-1: new high-speed USB device number 2 using ehci-
platform
[ 5.000000] hub 1-1:1.0: USB hub found
[ 5.000000] hub 1-1:1.0: 4 ports detected
[ 5.280000] usb 1-1.1: new low-speed USB device number 3 using ehci-
platform
[ 7.160000] eth0: link up (100Mbps/Full duplex)
[ 8.630000] jffs2: notice: (354) jffs2_build_xattr_subsystem: complete
building xattr subsystem, 19 of xdatum (1 unchecked, 18 orphan) and 36 of
xref (0 dead, 22 orphan) found.
[ 13.720000] jffs2: notice: (351) jffs2_build_xattr_subsystem: complete
building xattr subsystem, 19 of xdatum (1 unchecked, 18 orphan) and 36 of
xref (0 dead, 22 orphan) found.
[ 13.770000] eth0: link down
[ 16.010000] NET: Registered protocol family 10
[ 16.040000] nf_conntrack version 0.5.0 (958 buckets, 3832 max)
[ 16.060000] ip6_tables: (C) 2000-2006 Netfilter Core Team
[ 16.070000] i2c-tiny-usb 1-1.1:1.0: version 1.05 found at bus 001
address 003
[ 16.080000] i2c i2c-0: connected i2c-tiny-usb device
[ 16.080000] usbcore: registered new interface driver i2c-tiny-usb
[ 16.100000] usbcore: registered new interface driver cdc_acm
[ 16.100000] cdc_acm: USB Abstract Control Model driver for USB modems
and ISDN adapters
[ 16.110000] Loading modules backported from Linux version
master-2014-05-22-0-gf2032ea
[ 16.120000] Backport generated by backports.git
backports-20140320-37-g5c33da0
[ 16.130000] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 16.200000] xt_time: kernel timezone is -0000
[ 16.240000] cfg80211: Calling CRDA to update world regulatory domain
[ 16.240000] cfg80211: World regulatory domain updated:
[ 16.250000] cfg80211: DFS Master region: unset
[ 16.250000] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 16.260000] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A,
2000 mBm), (N/A)
[ 16.270000] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A,
2000 mBm), (N/A)
[ 16.280000] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A,
2000 mBm), (N/A)
[ 16.280000] cfg80211: (5170000 KHz - 5250000 KHz @ 160000 KHz), (N/A,
2000 mBm), (N/A)
[ 16.290000] cfg80211: (5250000 KHz - 5330000 KHz @ 160000 KHz), (N/A,
2000 mBm), (0 s)
[ 16.300000] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A,
2000 mBm), (0 s)
[ 16.310000] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A,
2000 mBm), (N/A)
[ 16.320000] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 0 mBm), (N/A)
[ 16.410000] PPP generic driver version 2.4.2
[ 16.410000] NET: Registered protocol family 24
[ 16.480000] ath: EEPROM regdomain: 0x0
[ 16.480000] ath: EEPROM indicates default country code should be used
[ 16.480000] ath: doing EEPROM country->regdmn map search
[ 16.480000] ath: country maps to regdmn code: 0x3a
[ 16.480000] ath: Country alpha2 being used: US
[ 16.480000] ath: Regpair used: 0x3a
[ 16.490000] ieee80211 phy0: Selected rate control algorithm
'minstrel_ht'
[ 16.500000] cfg80211: Calling CRDA for country: US
[ 16.510000] cfg80211: Regulatory domain changed to country: US
[ 16.510000] cfg80211: DFS Master region: FCC
[ 16.510000] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 16.520000] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A,
3000 mBm), (N/A)
[ 16.530000] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A,
1700 mBm), (N/A)
[ 16.540000] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A,
2300 mBm), (0 s)
[ 16.550000] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A,
3000 mBm), (N/A)
[ 16.560000] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[ 16.560000] ieee80211 phy0: Atheros AR9330 Rev:1 mem=0xb8100000, irq=2
[ 25.220000] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 25.250000] eth0: link up (100Mbps/Full duplex)
[ 25.260000] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready
[ 25.270000] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 26.480000] cfg80211: Calling CRDA for country: PL
[ 26.480000] cfg80211: Regulatory domain changed to country: PL
[ 26.490000] cfg80211: DFS Master region: ETSI
[ 26.490000] cfg80211: (start_freq - end_freq @ bandwidth),
(max_antenna_gain, max_eirp), (dfs_cac_time)
[ 26.500000] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A,
2000 mBm), (N/A)
[ 26.510000] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A,
2000 mBm), (N/A)
[ 26.520000] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A,
2000 mBm), (0 s)
[ 26.520000] cfg80211: (5490000 KHz - 5710000 KHz @ 80000 KHz), (N/A,
2700 mBm), (0 s)
[ 26.530000] cfg80211: (57240000 KHz - 65880000 KHz @ 2160000 KHz),
(N/A, 4000 mBm), (N/A)
[ 28.300000] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 28.300000] device wlan0 entered promiscuous mode
[ 29.020000] br-lan: port 1(wlan0) entered forwarding state
[ 29.030000] br-lan: port 1(wlan0) entered forwarding state
[ 29.030000] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 29.040000] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready
[ 31.030000] br-lan: port 1(wlan0) entered forwarding state
[ 2558.350000] i2c /dev entries driver
[ 2614.810000] Unhandled kernel unaligned access[#1]:
[ 2614.810000] CPU: 0 PID: 1497 Comm: i2cdetect Not tainted 3.10.49 #3
[ 2614.810000] task: 82c20860 ti: 8320a000 task.ti: 8320a000
[ 2614.810000] $ 0 : 00000000 803b0000 8eff0001 00000001
[ 2614.810000] $ 4 : 83802f00 830a0000 82c08200 00014854
[ 2614.810000] $ 8 : 00000001 00014853 82c08480 834ee000
[ 2614.810000] $12 : 00000000 00000001 000a0019 00000000
[ 2614.810000] $16 : 00100873 8eff0001 82c9fcf0 00000705
[ 2614.810000] $20 : 00000004 0000000a 00000000 00438a2c
[ 2614.810000] $24 : 00000000 80203ff4
[ 2614.810000] $28 : 8320a000 8320be60 00000080 800aac20
[ 2614.810000] Hi : 00000260
[ 2614.810000] Lo : ced23a80
[ 2614.810000] epc : 800aac28 __split_vma.isra.33+0x138/0x1c4
[ 2614.810000] Not tainted
[ 2614.810000] ra : 800aac20 __split_vma.isra.33+0x130/0x1c4
[ 2614.810000] Status: 1000dc03 KERNEL EXL IE
[ 2614.810000] Cause : 00800010
[ 2614.810000] BadVA : 001008bb
[ 2614.810000] PrId : 00019374 (MIPS 24Kc)
[ 2614.810000] Modules linked in: i2c_dev ath9k ath9k_common pppoe
ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4
nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp
xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack
xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_CT slhc nf_nat_irc nf_nat_ftp
nf_nat nf_defrag_ipv4 nf_conntrack_irc nf_conntrack_ftp iptable_raw
iptable_mangle iptable_filter ipt_REJECT ip_tables crc_ccitt compat
cdc_acm i2c_tiny_usb ip6t_REJECT ip6table_raw ip6table_mangle
ip6table_filter ip6_tables x_tables nf_conntrack_ipv6 nf_conntrack
nf_defrag_ipv6 vfat fat nls_iso8859_1 nls_cp437 ipv6 arc4 crypto_blkcipher
usb_storage ehci_platform ehci_hcd sd_mod scsi_mod gpio_button_hotplug
ext4 crc16 jbd2 mbcache usbcore nls_base usb_common crypto_hash
[ 2614.810000] Process i2cdetect (pid: 1497, threadinfo=8320a000,
task=82c20860, tls=77991440)
[ 2614.810000] Stack : 7791e000 8011c0b0 82c08200 80103ebc 00000041
800930f8 8305be60 7ff250b4
[ 2614.810000] 82c9fcf0 80296440 83270015 0000004a 00000000 8344a908
82c9fcf0 801235f4
[ 2614.810000] 00000000 00000000 00000000 00000000 00000002 800819bc
8305b648 802562f0
[ 2614.810000] 00000004 8305be60 83270000 00000020 8305be68 82c9fcf0
00000000 00438a2c
[ 2614.810000] 00000004 8012045c 8305be60 7ff250b4 00000000 00000705
00000004 80073b38
[ 2614.810000] ...
[ 2614.810000] Call Trace:
[ 2614.810000] [<800aac28>] __split_vma.isra.33+0x138/0x1c4
[ 2614.810000]
[ 2614.810000]
[ 2614.810000] Code: 00000000 1040001a 00408821 <8e020048> 10400006
00000000 8c420004 10400003 00000000
[ 2615.040000] ---[ end trace 0037a1affaa80500 ]---
root@OpenWrt:~# cat /sys/kernel/debug/usb/devices
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 1
B: Alloc= 0/800 us ( 0%), #Int= 1, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev= 3.10
S: Manufacturer=Linux 3.10.49 ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=ehci-platform
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr= 0mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl=256ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=480 MxCh= 4
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=05e3 ProdID=0608 Rev=77.60
S: Product=USB2.0 Hub
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 1 Ivl=256ms
T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=1.5 MxCh= 0
D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0403 ProdID=c631 Rev= 1.05
S: Manufacturer=Till Harbaum
S: Product=i2c-tiny-usb
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr= 10mA
I:* If#= 0 Alt= 0 #EPs= 0 Cls=00(>ifc ) Sub=00 Prot=00 Driver=i2c-tiny-usb
root@OpenWrt:~#
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/18958>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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