Greg KH wrote:
On Sun, Oct 24, 2004 at 01:07:19PM -0700, Andrew Morton wrote:
Looks like the recent visor.c changes.
Begin forwarded message:
Date: Sun, 24 Oct 2004 18:14:38 +0200 From: Grzegorz Piotr Jaskiewicz <[EMAIL PROTECTED]> To: Andrew Morton <[EMAIL PROTECTED]> Subject: palm on usb segfaults mm kernel
Hi
I've tried recently Zire Palm attached to my laptop running 2.6.9-mm1, and it segfaults on device open:
Can you try the 2.6.10-rc1 kernel and see if that works for you or not?
the 2.6.10-rc1-bk2, since bk2 contained some updates to usb subsystem:
drivers/usb/serial/visor.c: USB HandSpring Visor / Palm OS driver v2.1
usb 1-1: USB disconnect, address 2
visor ttyUSB0: Handspring Visor / Palm OS converter now disconnected from ttyUSB0
visor ttyUSB1: Handspring Visor / Palm OS converter now disconnected from ttyUSB1
visor 1-1:1.0: device disconnected
usb 1-1: new full speed USB device using uhci_hcd and address 3
usb 1-1: control timeout on ep0in
visor 1-1:1.0: Handspring Visor / Palm OS converter detected
usb 1-1: Handspring Visor / Palm OS converter now attached to ttyUSB0
usb 1-1: Handspring Visor / Palm OS converter now attached to ttyUSB1
Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
e0f7802f
*pde = 00000000
Oops: 0002 [#1]
Modules linked in: visor usbserial ipv6 ohci_hcd ehci_hcd i2c_piix4 uhci_hcd usbc
ore snd_cs46xx snd_rawmidi snd_seq_device snd_ac97_codec pciehp shpchp intel_agp parport_pc parport 8250_pnp 8250 s
erial_core irtty_sir sir_dev irda evdev snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd nvram agpgart
ieee1394 pcmcia yenta_socket pcmcia_core ide_cd cdrom ide_scsi scsi_mod 3c59x nfs lockd sunrpc af_packet rtc
CPU: 0
EIP: 0060:[pg0+548835375/1069478912] Not tainted VLI
EFLAGS: 00010086 (2.6.10-rc1-bk2)
EIP is at visor_open+0x2f/0x1f0 [visor]
eax: 00000286 ebx: 00000000 ecx: d2ce7000 edx: e0f7c280
esi: d3b0a3a0 edi: df914400 ebp: d89b7ea8 esp: d89b7e88
ds: 007b es: 007b ss: 0068
Process kpilot (pid: 3808, threadinfo=d89b6000 task=d8934a80)
Stack: 000000d0 e0fab6b9 00000000 d3b0a3a0 d89b7ea8 df914400 d3b0a3a0 d2ce7000
d89b7ecc e0fa83ea df914400 d3578a60 d3b0ae60 00000000 ffffffed d3578a60
00000000 d89b7efc c0227f55 d2ce7000 d3578a60 d89b7ee8 00000802 0bc00000
Call Trace:
[show_stack+127/160] show_stack+0x7f/0xa0
[show_registers+342/464] show_registers+0x156/0x1d0
[die+200/336] die+0xc8/0x150
[do_page_fault+1078/1623] do_page_fault+0x436/0x657
[error_code+45/56] error_code+0x2d/0x38
[pg0+549032938/1069478912] serial_open+0xca/0x120 [usbserial]
[tty_open+469/704] tty_open+0x1d5/0x2c0
[chrdev_open+136/336] chrdev_open+0x88/0x150
[dentry_open+385/496] dentry_open+0x181/0x1f0
[filp_open+90/96] filp_open+0x5a/0x60
[filp_open+90/96] filp_open+0x5a/0x60
[sys_open+70/144] sys_open+0x46/0x90
[syscall_call+7/11] syscall_call+0x7/0xb
Code: 56 53 83 ec 14 a1 40 c6 f7 e0 8b 7d 08 85 c0 8b 37 8b 9f ec 00 00 00 0f 85
ff 00 00 00 8b 47 20 85 c0 0f 84 8a 01 00 00 9c 58 fa <c7> 03 00 00 00 00 c7 43 04 00 00 00 00 c7 43 08 00 00 00 00 5
0
<6>usb 1-1: USB disconnect, address 3
visor 1-1:1.0: device disconnected
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