Linux 2.6.8.1-SMP on a UP machine, devfs, gcc-3.4.2
I received this error when unplugging my PL2303 USB
serial converter from my USB 2.0 hub. (Not that the
device worked when I tried to use it anyway.)
Here's the tail of the dmesg output:
...
usb 5-5.4: PL-2303 converter now attached to ttyUSB0
usbcore: registered new driver pl2303
drivers/usb/serial/pl2303.c: Prolific PL2303 USB to
serial adaptor driver v0.11
PL-2303 ttyUSB0: pl2303_open - failed submitting
interrupt urb, error -28
PL-2303 ttyUSB0: PL-2303 converter now disconnected
from ttyUSB0
$ usb 5-5.4: USB disconnect, address 3
Unable to handle kernel NULL pointer dereference at
virtual address 00000000
printing eip:
00000000
*pde = 00000000
Oops: 0000 [#1]
SMP
Modules linked in: pl2303 usbserial snd_seq_oss
snd_seq_midi snd_emu10k1_synth snd_emux_synth
snd_seq_virmidi snd_seq_midi_event snd_seq_midi_emul
snd_seq videodev mga deflate zlib_deflate zlib_inflate
twofish serpent aes_i586 blowfish des
sha256 crypto_null af_key md5 ipv6 snd_rtctimer
binfmt_misc w83781d eeprom i2c_sensor i2c_i801
i2c_core ide_cd cdrom psmouse pcspkr button processor
nfs nfsd exportfs lockd sunrpc ehci_hcd eth1394
ohci_hcd ohci1394 ieee1394 8139too mii crc32
emu10k1_gp gameport snd_emu10k1 snd_rawmidi
snd_seq_device snd_ac97_codec snd_pcm snd_timer
snd_page_alloc snd_util_mem snd_hwdep snd soundcore
uhci_hcd usbcore i8xx_tco intel_agp agpgart joydev
evdev ext3 jbd
CPU: 0
EIP: 0060:[<00000000>] Not tainted
EFLAGS: 00010202 (2.6.8.1)
EIP is at 0x0
eax: d3769801 ebx: dace2290 ecx: 00000000 edx:
d3769838
esi: d3769800 edi: dace2280 ebp: cfd71024 esp:
de8c3e7c
ds: 007b es: 007b ss: 0068
Process khubd (pid: 540, threadinfo=de8c3000
task=dee83310)
Stack: e161df78 d3769838 00000083 dace2280 dace2280
e15fd2a0 cfd71000 e08d910a
dace2280 dace2280 d051cdd0 dace2290 e15fd2c0
c01f6a66 dace2290 dace22b8
dace2290 cfd710d0 c01f6cf5 dace2290 dace2290
dace2290 cfd710d0 c01f5a89
Call Trace:
[<e161df78>] usb_serial_disconnect+0x38/0x90
[usbserial]
[<e08d910a>] usb_unbind_interface+0x6a/0x70 [usbcore]
[<c01f6a66>] device_release_driver+0x66/0x70
[<c01f6cf5>] bus_remove_device+0x65/0xb0
[<c01f5a89>] device_del+0x59/0xc0
[<e08e02f8>] usb_disable_device+0x98/0x110 [usbcore]
[<e08db353>] usb_disconnect+0xb3/0x160 [usbcore]
[<e08dc322>] hub_port_connect_change+0x242/0x400
[usbcore]
[<e08dc6b6>] hub_events+0x1d6/0x3d0 [usbcore]
[<c011ad70>] autoremove_wake_function+0x0/0x60
[<e08dc8f5>] hub_thread+0x45/0x120 [usbcore]
[<c011ad70>] autoremove_wake_function+0x0/0x60
[<c011ad70>] autoremove_wake_function+0x0/0x60
[<e08dc8b0>] hub_thread+0x0/0x120 [usbcore]
[<c0103f35>] kernel_thread_helper+0x5/0x10
Code: Bad EIP value.
___________________________________________________________ALL-NEW Yahoo! Messenger -
all new features - even more fun! http://uk.messenger.yahoo.com
-------------------------------------------------------
This SF.net email is sponsored by: IT Product Guide on ITManagersJournal
Use IT products in your business? Tell us what you think of them. Give us
Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more
http://productguide.itmanagersjournal.com/guidepromo.tmpl
_______________________________________________
[EMAIL PROTECTED]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
