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[linux-dvb] Re: SysFS-Support
Thanks for the info about the oops... i will have a lookt at it today.
Christian
> 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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