On Tue, 14 Feb 2006 16:23:14 -0800
Greg KH <[EMAIL PROTECTED]> wrote:
> Can you attach the output of /proc/bus/usb/devices with your device
> plugged into the system?
>
> thanks,
>
> greg k-h
>
$ cat /proc/bus/usb/devices
T: Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 6
B: Alloc= 0/800 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.16-rc3-ck1 ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=0000:00:03.3
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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= 2 Ivl=256ms
T: Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 2/900 us ( 0%), #Int= 1, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.16-rc3-ck1 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:03.2
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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= 2 Ivl=255ms
T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 4 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=02(comm.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=22b8 ProdID=5802 Rev= 0.01
S: Manufacturer=Motorola Inc.
S: Product=Motorola Phone (C350)
C:* #Ifs= 2 Cfg#= 1 Atr=c0 MxPwr= 20mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=cdc_acm
E: Ad=89(I) Atr=03(Int.) MxPS= 16 Ivl=10ms
I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm
E: Ad=01(O) Atr=02(Bulk) MxPS= 32 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 32 Ivl=0ms
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.16-rc3-ck1 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:03.1
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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= 2 Ivl=255ms
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 2.06
S: Manufacturer=Linux 2.6.16-rc3-ck1 ohci_hcd
S: Product=OHCI Host Controller
S: SerialNumber=0000:00:03.0
C:* #Ifs= 1 Cfg#= 1 Atr=c0 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= 2 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=055f ProdID=021d Rev= 1.00
S: Product=USB Scanner
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
In 2.6.16-rc3,
when i unplug modem, while pppd trying to connect, dmesg output
Unable to handle kernel NULL pointer dereference at virtual address 0000000c
printing eip:
c019a0fc
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: nls_koi8_r isofs zlib_inflate floppy udf ipv6 ppp_async
crc_ccitt ppp_generic slhc snd_rtctimer fglrx raw snd_es1938 snd_opl3_lib
snd_hwdep snd_mpu401_uart snd_rawmidi snd_pcm_oss snd_mixer_oss snd_intel8x0
snd_ac97_codec snd_ac97_bus snd_pcm snd_page_alloc parport_pc lp parport usblp
iptable_filter ip_tables x_tables af_packet w83627hf hwmon_vid eeprom i2c_isa
i2c_sis96x ide_cd cdrom loop reiser4 supermount snd_seq_oss snd_seq_midi_event
snd_seq snd_timer snd_seq_device snd soundcore evdev joydev analog ns558
gameport sis_agp agpgart cdc_acm ehci_hcd ohci_hcd usbcore container button
CPU: 0
EIP: 0060:[<c019a0fc>] Tainted: P VLI
EFLAGS: 00010296 (2.6.16-rc3-ck1 #1)
EIP is at sysfs_hash_and_remove+0x45/0x131
eax: dd3fe000 ebx: cac8e420 ecx: 00000000 edx: c019a0fc
esi: 00000000 edi: dffeb4e4 ebp: dffeb480 esp: dd3ffe04
ds: 007b es: 007b ss: 0068
Process pppd (pid: 28480, threadinfo=dd3fe000 task=c1c5b030)
Stack: <0>dc2d0908 c02f6710 dc2d0908 d55b2a94 db925988 db925980 dffeb4e4
dffeb480
c02629b2 d55b2a94 cac8e420 cac8e420 00000000 db925980 0000000f c80dec00
ce2db3c0 c02629c7 db925980 c80dec4c e084d7de db925980 0a600000 c80dec00
Call Trace:
[<c02f6710>] __mutex_unlock_slowpath+0x44/0x177
[<c02629b2>] class_device_del+0x11e/0x123
[<c02629c7>] class_device_unregister+0x10/0x1d
[<e084d7de>] acm_tty_unregister+0x29/0x7c [cdc_acm]
[<e084d831>] acm_tty_close+0x0/0xdd [cdc_acm]
[<e084d90c>] acm_tty_close+0xdb/0xdd [cdc_acm]
[<c024255f>] release_dev+0x681/0x7ba
[<c017125d>] locks_free_lock+0x51/0xa7
[<c0172012>] __posix_lock_file+0x17e/0x46c
[<c017125d>] locks_free_lock+0x51/0xa7
[<c017330e>] fcntl_setlk+0x239/0x2aa
[<c0242b58>] tty_release+0xf/0x15
[<c015e3af>] __fput+0x14e/0x17d
[<c015ca73>] filp_close+0x46/0x87
[<c015cb05>] sys_close+0x51/0x62
[<c0102daf>] sysenter_past_esp+0x54/0x75
Code: 0c 8b 70 50 8b 40 08 8b 5c 24 28 85 c0 75 14 8b 5c 24 10 8b 74 24 14 8b
7c 24 18 8b 6c 24 1c 83 c4 20 c3 83 c0 70 e8 8f c2 15 00 <8b> 56 0c 8d 6a fc 8b
45 04 0f 18 00 90 83 c6 0c 39 f2 89 74 24
BUG: pppd/28480, lock held at task exit time!
[dd309474] {inode_init_once}
.. held by: pppd:28480 [c1c5b030, 106]
... acquired at: sysfs_hash_and_remove+0x45/0x131
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