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[linux-dvb] Re: SysFS-Support
hm.
DVB: Using procfs funtions
DVB: Using sysfs funtions
DVB: registering new adapter (DEC2000-t).
DVB: register adapter0/demux0 @ minor: 4 (0x04)
DVB: register adapter0/dvr0 @ minor: 5 (0x05)
DVB: register adapter0/net0 @ minor: 7 (0x07)
DVB: registering frontend 0:0 (TechnoTrend/Hauppauge DEC2000-t Frontend)...
DVB: register adapter0/frontend0 @ minor: 3 (0x03)
usbcore: registered new driver ttusb-dec
usbcore: deregistering driver ttusb-dec
DVB: dvb_class_release()
Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
c025fcca
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
CPU: 0
EIP: 0060:[<c025fcca>] Not tainted
EFLAGS: 00010246 (2.6.6)
EIP is at get_kobj_path_length+0x1a/0x40
eax: 00000000 ebx: 00000000 ecx: ffffffff edx: d9469354
esi: 00000001 edi: 00000000 ebp: ffffffff esp: d1d99e24
ds: 007b es: 007b ss: 0068
Process rmmod (pid: 15717, threadinfo=d1d98000 task=dba2ba30)
Stack: 000001ea d2c5d419 d2c5d400 c2956610 c025fe91 c03eee60 d9469354 000001ea
00000000 d1d99ea8 2f627664 d2c5d400 00000000 c03b66e0 dd9e5062 00000000
c6474d38 d9469354 00000002 00000000 00000880 c026002a c037e0ec c03eee60
Call Trace:
[<c025fe91>] kset_hotplug+0x151/0x290
[<c026002a>] kobject_hotplug+0x5a/0x60
[<c026036b>] kobject_del+0x1b/0x40
[<c02603a3>] kobject_unregister+0x13/0x30
[<dd9e351b>] dvb_unregister_device+0x5b/0x70 [dvb_core]
[<dd9d90c0>] dvb_dmxdev_release+0x20/0x70 [dvb_core]
[<dd9bd62d>] ttusb_dec_exit_dvb+0x4d/0x90 [ttusb_dec]
[<dd9be2f3>] ttusb_dec_disconnect+0x63/0x80 [ttusb_dec]
[<dd8f60fa>] usb_unbind_interface+0x7a/0x80 [usbcore]
[<c02a6d94>] device_release_driver+0x64/0x70
[<c02a6dc0>] driver_detach+0x20/0x30
[<c02a6fed>] bus_remove_driver+0x3d/0x80
[<c02a7403>] driver_unregister+0x13/0x28
[<dd8f61d2>] usb_deregister+0x32/0x40 [usbcore]
[<dd9be3df>] ttusb_dec_exit+0xf/0x13 [ttusb_dec]
[<c012dd8c>] sys_delete_module+0x12c/0x180
[<c0140063>] zap_pte_range+0x3/0x220
[<c0105a07>] syscall_call+0x7/0xb
Code: f2 ae f7 d1 49 8b 52 24 8d 74 31 01 85 d2 75 ea 5b 89 f0 5e
-------------------------------------------------------------------
ksymoops 2.4.9 on i686 2.6.6. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.6.6/ (default)
-m /boot/System.map-2.6.6 (default)
Warning: You did not tell me where to find symbol information. I will
assume that the log matches the kernel and modules that are running
right now and I'll use the default options above for symbol resolution.
If the current kernel and/or modules do not match the log, you can get
more accurate output by telling me the kernel version and where to find
map, modules, ksyms etc. ksymoops -h explains the options.
Error (regular_file): read_ksyms stat /proc/ksyms failed
No modules in ksyms, skipping objects
No ksyms, skipping lsmod
pid: 0x0131
pid: 0x0132
Unable to handle kernel NULL pointer dereference at virtual address 00000000
c025fcca
*pde = 00000000
Oops: 0000 [#1]
CPU: 0
EIP: 0060:[<c025fcca>] Not tainted
Using defaults from ksymoops -t elf32-i386 -a i386
EFLAGS: 00010246 (2.6.6)
eax: 00000000 ebx: 00000000 ecx: ffffffff edx: d9469354
esi: 00000001 edi: 00000000 ebp: ffffffff esp: d1d99e24
ds: 007b es: 007b ss: 0068
Stack: 000001ea d2c5d419 d2c5d400 c2956610 c025fe91 c03eee60 d9469354 000001ea
00000000 d1d99ea8 2f627664 d2c5d400 00000000 c03b66e0 dd9e5062 00000000
c6474d38 d9469354 00000002 00000000 00000880 c026002a c037e0ec c03eee60
Call Trace:
[<c025fe91>] kset_hotplug+0x151/0x290
[<c026002a>] kobject_hotplug+0x5a/0x60
[<c026036b>] kobject_del+0x1b/0x40
[<c02603a3>] kobject_unregister+0x13/0x30
[<dd9e351b>] dvb_unregister_device+0x5b/0x70 [dvb_core]
[<dd9d90c0>] dvb_dmxdev_release+0x20/0x70 [dvb_core]
[<dd9bd62d>] ttusb_dec_exit_dvb+0x4d/0x90 [ttusb_dec]
[<dd9be2f3>] ttusb_dec_disconnect+0x63/0x80 [ttusb_dec]
[<dd8f60fa>] usb_unbind_interface+0x7a/0x80 [usbcore]
[<c02a6d94>] device_release_driver+0x64/0x70
[<c02a6dc0>] driver_detach+0x20/0x30
[<c02a6fed>] bus_remove_driver+0x3d/0x80
[<c02a7403>] driver_unregister+0x13/0x28
[<dd8f61d2>] usb_deregister+0x32/0x40 [usbcore]
[<dd9be3df>] ttusb_dec_exit+0xf/0x13 [ttusb_dec]
[<c012dd8c>] sys_delete_module+0x12c/0x180
[<c0140063>] zap_pte_range+0x3/0x220
[<c0105a07>] syscall_call+0x7/0xb
Code: f2 ae f7 d1 49 8b 52 24 8d 74 31 01 85 d2 75 ea 5b 89 f0 5e
>>EIP; c025fcca <get_kobj_path_length+1a/40> <=====
>>ecx; ffffffff <__kernel_rt_sigreturn+1bbf/????>
>>edx; d9469354 <pg0+18fde354/3fb73000>
>>ebp; ffffffff <__kernel_rt_sigreturn+1bbf/????>
>>esp; d1d99e24 <pg0+1190ee24/3fb73000>
Trace; c025fe91 <kset_hotplug+151/290>
Trace; c026002a <kobject_hotplug+5a/60>
Trace; c026036b <kobject_del+1b/40>
Trace; c02603a3 <kobject_unregister+13/30>
Trace; dd9e351b <pg0+1d55851b/3fb73000>
Trace; dd9d90c0 <pg0+1d54e0c0/3fb73000>
Trace; dd9bd62d <pg0+1d53262d/3fb73000>
Trace; dd9be2f3 <pg0+1d5332f3/3fb73000>
Trace; dd8f60fa <pg0+1d46b0fa/3fb73000>
Trace; c02a6d94 <device_release_driver+64/70>
Trace; c02a6dc0 <driver_detach+20/30>
Trace; c02a6fed <bus_remove_driver+3d/80>
Trace; c02a7403 <driver_unregister+13/28>
Trace; dd8f61d2 <pg0+1d46b1d2/3fb73000>
Trace; dd9be3df <pg0+1d5333df/3fb73000>
Trace; c012dd8c <sys_delete_module+12c/180>
Trace; c0140063 <zap_pte_range+3/220>
Trace; c0105a07 <syscall_call+7/b>
Code; c025fcca <get_kobj_path_length+1a/40>
00000000 <_EIP>:
Code; c025fcca <get_kobj_path_length+1a/40> <=====
0: f2 ae repnz scas %es:(%edi),%al <=====
Code; c025fccc <get_kobj_path_length+1c/40>
2: f7 d1 not %ecx
Code; c025fcce <get_kobj_path_length+1e/40>
4: 49 dec %ecx
Code; c025fccf <get_kobj_path_length+1f/40>
5: 8b 52 24 mov 0x24(%edx),%edx
Code; c025fcd2 <get_kobj_path_length+22/40>
8: 8d 74 31 01 lea 0x1(%ecx,%esi,1),%esi
Code; c025fcd6 <get_kobj_path_length+26/40>
c: 85 d2 test %edx,%edx
Code; c025fcd8 <get_kobj_path_length+28/40>
e: 75 ea jne fffffffa <_EIP+0xfffffffa>
Code; c025fcda <get_kobj_path_length+2a/40>
10: 5b pop %ebx
Code; c025fcdb <get_kobj_path_length+2b/40>
11: 89 f0 mov %esi,%eax
Code; c025fcdd <get_kobj_path_length+2d/40>
13: 5e pop %esi
1 warning and 1 error issued. Results may not be reliable.
--
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