Il 06/05/2013 13:48, marco caminati ha scritto: > My thanks to Mauro for his work on this device. Eager to try it, I built sources yesterday following directions on > > http://linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers > > My environment is Tinycore Linux 4.7.5: > > Linux box 3.0.21-tinycore #3021 SMP Sat Feb 18 11:54:11 EET 2012 i686 GNU/Linux > > > The PC hangs (not even REISUB working) as soon as I plug my device in usb port. > Killing udevd and loading one module a time, I found that the crash occurs exactly when I load > > dvb-usb-rtl28xxu.ko > AND > the device is plugged. > I.e., to crash I just need to sudo modprobe dvb-usb-rtl28xxu and plug. > Hi Marco, I have the same device and the same issue on a 2.6.32 32 bit kernel. However, I was able to run the driver successfully on 3.2.44 and 3.9.0 kernels (both 32 and 64 bit). Also, I can run a similar device with a e4000 tuner with no problem even on the old 2.6.32 kernel. I just posted a few patches for the r820t tuner, can you try them and check if they fix your problem? Best regards, Gianluca > > My device is as from subject, with lsusb giving 0bda:2838. It looks like this: > http://www.hamradioscience.com/wp-content/uploads/2012/10/R820T-560x420.jpg > > I am quite sure it has a r820t tuner because sdr.osmocom.org logs told me so, and because I managed to make it work (as a DVB-T receiver) by patching some r820t code for an old kernel, see > > http://www.spinics.net/lists/linux-media/msg57707.html. > > Lars Buerding recently reported success on a newer kernel, so it might be a backport problem. However, I had similar results on a fresh Debian Wheezy yesterday. > > I append > 1) the crash log (used klogd spitting on a -o sync mounted device). > 2) lsusb -v for the device > > > Regards, > Marco > > > > > ********************************* > ********************************* > > > May� 6 12:56:50 box user.info kernel: usb 1-4: new high speed USB device number 4 using ehci_hcd > May� 6 12:56:50 box user.err kernel: WARNING: You are using an experimental version of the media stack. > May� 6 12:56:50 box user.err kernel: ��� As the driver is backported to an older kernel, it doesn't offer > May� 6 12:56:50 box user.err kernel: ��� enough quality for its usage in production. > May� 6 12:56:50 box user.err kernel: ��� Use it with care. > May� 6 12:56:50 box user.err kernel: Latest git patches (needed if you report a bug to linux-media@xxxxxxxxxxxxxxx): > May� 6 12:56:50 box user.err kernel: ��� 02615ed5e1b2283db2495af3cf8f4ee172c77d80 [media] cx88: make core less verbose > May� 6 12:56:50 box user.err kernel: ��� a3b60209e7dd4db05249a9fb27940bb6705cd186 [media] em28xx: fix oops at em28xx_dvb_bus_ctrl() > May� 6 12:56:50 box user.err kernel: ��� 4494f0fdd825958d596d05a4bd577df94b149038 [media] s5c73m3: fix indentation of the help section in Kconfig > May� 6 12:56:50 box user.err kernel: WARNING: You are using an experimental version of the media stack. > May� 6 12:56:50 box user.err kernel: ��� As the driver is backported to an older kernel, it doesn't offer > May� 6 12:56:50 box user.err kernel: ��� enough quality for its usage in production. > May� 6 12:56:50 box user.err kernel: ��� Use it with care. > May� 6 12:56:50 box user.err kernel: Latest git patches (needed if you report a bug to linux-media@xxxxxxxxxxxxxxx): > May� 6 12:56:50 box user.err kernel: ��� 02615ed5e1b2283db2495af3cf8f4ee172c77d80 [media] cx88: make core less verbose > May� 6 12:56:50 box user.err kernel: ��� a3b60209e7dd4db05249a9fb27940bb6705cd186 [media] em28xx: fix oops at em28xx_dvb_bus_ctrl() > May� 6 12:56:50 box user.err kernel: ��� 4494f0fdd825958d596d05a4bd577df94b149038 [media] s5c73m3: fix indentation of the help section in Kconfig > May� 6 12:56:50 box user.info kernel: usb 1-4: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state > May� 6 12:56:50 box user.info kernel: usbcore: registered new interface driver dvb_usb_rtl28xxu > May� 6 12:56:50 box user.alert kernel: BUG: unable to handle kernel NULL pointer dereference at 00000028 > May� 6 12:56:50 box user.alert kernel: IP: [<f11e171d>] 0xf11e171d > May� 6 12:56:50 box user.warn kernel: *pde = 00000000 > May� 6 12:56:50 box user.emerg kernel: Oops: 0000 [#1] SMP > May� 6 12:56:50 box user.warn kernel: Modules linked in: dvb_usb_rtl28xxu dvb_usb_v2 rtl2830 dvb_core rc_core rt73usb rt2x00usb rt2x00lib mac80211 cfg80211 acpi_cpufreq cpufreq_userspace mperf cpufreq_stats cpufreq_powersave cpufreq_conservative squashfs scsi_wait_ > May� 6 12:56:50 box user.warn kernel: Pid: 52, comm: kworker/1:2 Tainted: P�������� C� 3.0.21-tinycore #3021 FUJITSU SIEMENS AMILO Li1705/AMILO Li1705 > May� 6 12:56:50 box user.warn kernel: EIP: 0060:[<f11e171d>] EFLAGS: 00010246 CPU: 1 > May� 6 12:56:50 box user.warn kernel: EAX: 00000000 EBX: ed07ff02 ECX: 00000000 EDX: ffffffff > May� 6 12:56:50 box user.warn kernel: ESI: ed232038 EDI: 00000000 EBP: eee06a00 ESP: ed901f54 > May� 6 12:56:50 box user.warn kernel:� DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 > May� 6 12:56:50 box user.emerg kernel: Process kworker/1:2 (pid: 52, ti=ed900000 task=ed839030 task.ti=ed900000) > May� 6 12:56:50 box user.emerg kernel: Stack: > May� 6 12:56:50 box user.warn kernel:� 00000000 ed232000 c05af00c eee03078 00000001 eee03030 243e1b2c 00000000 > May� 6 12:56:50 box user.warn kernel:� ed8f2d80 ed232038 eee026c0 eee06a00 c013b0be eee02700 00000000 f11e1597 > May� 6 12:56:50 box user.warn kernel:� eee06a05 ed8f2d80 eee026c0 ed8f2d90 ed839030 c013bc6f ed8f2d90 ee867f34 > May� 6 12:56:50 box user.emerg kernel: Call Trace: > May� 6 12:56:50 box user.warn kernel:� [<c013b0be>] ? 0xc013b0be > May� 6 12:56:50 box user.warn kernel:� [<f11e1597>] ? 0xf11e1597 > May� 6 12:56:50 box user.warn kernel:� [<c013bc6f>] ? 0xc013bc6f > May� 6 12:56:50 box user.warn kernel:� [<c013bbc6>] ? 0xc013bbc6 > May� 6 12:56:50 box user.warn kernel:� [<c013e3a8>] ? 0xc013e3a8 > May� 6 12:56:50 box user.warn kernel:� [<c013e345>] ? 0xc013e345 > May� 6 12:56:50 box user.warn kernel:� [<c0417936>] ? 0xc0417936 > May� 6 12:56:50 box user.emerg kernel: Code: 00 00 8b 44 24 14 e8 54 fc ff ff 8b 43 c8 8b 50 70 83 c4 10 85 d2 74 10 8b 44 24 04 ff d2 85 c0 89 c7 0f 88 bd 06 00 00 8b 43 c8 > May� 6 12:56:50 box user.emerg kernel: 3> 78 28 00 74 67 8b 53 cc b9 30 00 00 00 8d 83 a8 01 00 00 8d > May� 6 12:56:50 box user.emerg kernel: EIP: [<f11e171d>]� SS:ESP 0068:ed901f54 > May� 6 12:56:50 box user.emerg kernel: CR2: 0000000000000028 > May� 6 12:56:50 box user.warn kernel: ---[ end trace 604313c755d73a7e ]--- > May� 6 12:56:50 box user.alert kernel: BUG: unable to handle kernel paging request at fffffffc > May� 6 12:56:50 box user.alert kernel: IP: [<c013e501>] 0xc013e501 > May� 6 12:56:50 box user.warn kernel: *pde = 005b9067 *pte = 00000000 > May� 6 12:56:50 box user.emerg kernel: Oops: 0000 [#2] SMP > May� 6 12:56:50 box user.warn kernel: Modules linked in: dvb_usb_rtl28xxu dvb_usb_v2 rtl2830 dvb_core rc_core rt73usb rt2x00usb rt2x00lib mac80211 cfg80211 acpi_cpufreq cpufreq_userspace mperf cpufreq_stats cpufreq_powersave cpufreq_conservative squashfs scsi_wait_ > May� 6 12:56:50 box user.warn kernel: Pid: 52, comm: kworker/1:2 Tainted: P����� D� C� 3.0.21-tinycore #3021 FUJITSU SIEMENS AMILO Li1705/AMILO Li1705 > May� 6 12:56:50 box user.warn kernel: EIP: 0060:[<c013e501>] EFLAGS: 00010002 CPU: 1 > May� 6 12:56:50 box user.warn kernel: EAX: 00000000 EBX: eee05700 ECX: 00000001 EDX: 00000001 > May� 6 12:56:50 box user.warn kernel: ESI: 00000001 EDI: ed839030 EBP: ed839030 ESP: ed901dac > May� 6 12:56:50 box user.warn kernel:� DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 > May� 6 12:56:50 box user.emerg kernel: Process kworker/1:2 (pid: 52, ti=ed900000 task=ed839030 task.ti=ed900000) > May� 6 12:56:50 box user.emerg kernel: Stack: > May� 6 12:56:50 box user.warn kernel:� c013bf2a eee05700 00000000 ed839030 c0415549 ee824980 c01c7389 00000001 > May� 6 12:56:50 box user.warn kernel:� c05b1700 ed8391c8 c05b1700 00000034 ee844650 ee844640 00000034 ed83858c > May� 6 12:56:50 box user.warn kernel:� ed838584 ed83b040 00000002 ee803a40 00000246 c015fd31 ed839030 ed839030 > May� 6 12:56:50 box user.emerg kernel: Call Trace: > May� 6 12:56:50 box user.warn kernel:� [<c013bf2a>] ? 0xc013bf2a > May� 6 12:56:50 box user.warn kernel:� [<c0415549>] ? 0xc0415549 > May� 6 12:56:50 box user.warn kernel:� [<c01c7389>] ? 0xc01c7389 > May� 6 12:56:50 box user.warn kernel:� [<c015fd31>] ? 0xc015fd31 > May� 6 12:56:50 box user.warn kernel:� [<c012e01b>] ? 0xc012e01b > May� 6 12:56:50 box user.warn kernel:� [<c04158f7>] ? 0xc04158f7 > May� 6 12:56:50 box user.warn kernel:� [<c012f3d5>] ? 0xc012f3d5 > May� 6 12:56:50 box user.warn kernel:� [<c014dd19>] ? 0xc014dd19 > May� 6 12:56:50 box user.warn kernel:� [<c0104d6b>] ? 0xc0104d6b > May� 6 12:56:50 box user.warn kernel:� [<c0411f49>] ? 0xc0411f49 > May� 6 12:56:50 box user.warn kernel:� [<c041209c>] ? 0xc041209c > May� 6 12:56:50 box user.warn kernel:� [<c011ba09>] ? 0xc011ba09 > May� 6 12:56:50 box user.warn kernel:� [<c0410001>] ? 0xc0410001 > May� 6 12:56:50 box user.warn kernel:� [<c011b8c8>] ? 0xc011b8c8 > May� 6 12:56:50 box user.warn kernel:� [<c041715a>] ? 0xc041715a > May� 6 12:56:50 box user.warn kernel:� [<c011b8c8>] ? 0xc011b8c8 > May� 6 12:56:50 box user.warn kernel:� [<f11e171d>] ? 0xf11e171d > May� 6 12:56:50 box user.warn kernel:� [<c013b0be>] ? 0xc013b0be > May� 6 12:56:50 box user.warn kernel:� [<f11e1597>] ? 0xf11e1597 > May� 6 12:56:50 box user.warn kernel:� [<c013bc6f>] ? 0xc013bc6f > May� 6 12:56:50 box user.warn kernel:� [<c013bbc6>] ? 0xc013bbc6 > May� 6 12:56:50 box user.warn kernel:� [<c013e3a8>] ? 0xc013e3a8 > May� 6 12:56:50 box user.warn kernel:� [<c013e345>] ? 0xc013e345 > May� 6 12:56:50 box user.warn kernel:� [<c0417936>] ? 0xc0417936 > May� 6 12:56:50 box user.emerg kernel: Code: 89 f0 83 e0 1f c1 ee 05 8d 14 85 78 c1 41 c0 89 d8 c1 e6 02 29 f2 e8 0e ab fe ff 81 4b 0c 00 00 00 04 5b 5e c3 8b 80 6c 01 00 00 <8b> 40 fc c3 31 c0 c3 57 ba c6 ee 47 c0 56 53 64 8b 35 c4 d4 5a > May� 6 12:56:50 box user.emerg kernel: EIP: [<c013e501>]� SS:ESP 0068:ed901dac > May� 6 12:56:50 box user.emerg kernel: CR2: 00000000fffffffc > May� 6 12:56:50 box user.warn kernel: ---[ end trace 604313c755d73a7f ]--- > May� 6 12:56:50 box user.alert kernel: Fixing recursive fault but reboot is needed! > > > > ********************************* > ********************************* > > > > Bus 001 Device 006: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T > Device Descriptor: > � bLength��������������� 18 > � bDescriptorType�������� 1 > � bcdUSB�������������� 2.00 > � bDeviceClass����������� 0 (Defined at Interface level) > � bDeviceSubClass�������� 0 > � bDeviceProtocol�������� 0 > � bMaxPacketSize0������� 64 > � idVendor���������� 0x0bda Realtek Semiconductor Corp. > � idProduct��������� 0x2838 RTL2838 DVB-T > � bcdDevice����������� 1.00 > � iManufacturer���������� 1 Realtek > � iProduct��������������� 2 RTL2838UHIDIR > � iSerial���������������� 3 00000013 > � bNumConfigurations����� 1 > � Configuration Descriptor: > ��� bLength���������������� 9 > ��� bDescriptorType�������� 2 > ��� wTotalLength���������� 34 > ��� bNumInterfaces��������� 2 > ��� bConfigurationValue���� 1 > ��� iConfiguration��������� 4 USB2.0-Bulk&Iso > ��� bmAttributes�������� 0x80 > ����� (Bus Powered) > ��� MaxPower������������� 500mA > ��� Interface Descriptor: > ����� bLength���������������� 9 > ����� bDescriptorType�������� 4 > ����� bInterfaceNumber������� 0 > ����� bAlternateSetting������ 0 > ����� bNumEndpoints���������� 1 > ����� bInterfaceClass������ 255 Vendor Specific Class > ����� bInterfaceSubClass��� 255 Vendor Specific Subclass > ����� bInterfaceProtocol��� 255 Vendor Specific Protocol > ����� iInterface������������� 5 Bulk-In, Interface > ����� Endpoint Descriptor: > ������� bLength���������������� 7 > ������� bDescriptorType�������� 5 > ������� bEndpointAddress���� 0x81� EP 1 IN > ������� bmAttributes����������� 2 > ��������� Transfer Type����������� Bulk > ��������� Synch Type�������������� None > ��������� Usage Type�������������� Data > ������� wMaxPacketSize���� 0x0200� 1x 512 bytes > ������� bInterval�������������� 0 > ��� Interface Descriptor: > ����� bLength���������������� 9 > ����� bDescriptorType�������� 4 > ����� bInterfaceNumber������� 1 > ����� bAlternateSetting������ 0 > ����� bNumEndpoints���������� 0 > ����� bInterfaceClass������ 255 Vendor Specific Class > ����� bInterfaceSubClass��� 255 Vendor Specific Subclass > ����� bInterfaceProtocol��� 255 Vendor Specific Protocol > ����� iInterface������������� 5 Bulk-In, Interface > Device Qualifier (for other device speed): > � bLength��������������� 10 > � bDescriptorType�������� 6 > � bcdUSB�������������� 2.00 > � bDeviceClass����������� 0 (Defined at Interface level) > � bDeviceSubClass�������� 0 > � bDeviceProtocol�������� 0 > � bMaxPacketSize0������� 64 > � bNumConfigurations����� 2 > Device Status:���� 0x0000 > � (Bus Powered) > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
