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Message-Id: <20110712080309.d538fec9.rdunlap@xenotime.net> Date: Tue, 12 Jul 2011 08:03:09 -0700 From: Randy Dunlap <rdunlap@...otime.net> To: Chris W <lkml@...chogeeks.com>, linux-media@...r.kernel.org Cc: linux-kernel@...r.kernel.org Subject: Re: Imon module Oops and kernel hang [add linux-media mailing list] On Tue, 12 Jul 2011 10:38:36 +1000 Chris W wrote: > Hello All, > > The following report applies to 2.6.39.3 (vanilla code). I also see it > consistently on 2.6.39.2 and 2.6.38-gentoo-r6. > > I am trying to switch to using the in-kernel modules for my remote > control and vfd display needs. I have built the kernel with the mceusb > module for the MCE remote that I use to control the machine and the imon > module to provide an LCD interface for lcdproc (I don't use that actual > remote). There's also another, unused, remote interface on one of my DVB > cards (rc_winfast module). Kernel modules for the MCE and other remote > load fine. > > Attempting to load the imon module crashes Linux hard (no recovery other > than hard reset). Details are below. It seems to be related to > keytables. The iMon device is an older VFD device in a Silverstone > case, with mouse control on the remote, no volume knob. Details of the > iMon USB device are below the crash details. > > I hope this is a dumb mistake on my part. I would appreciate any > assistance. > Regards, > Chris > > > root@...ler # modprobe -v imon debug=1 > (I have also tried specifying display_type=1) > > root@...ton # cat /var/log/kepler-netconsole.log > Jul 12 09:44:20 kepler BUG: unable to handle kernel > Jul 12 09:44:20 kepler NULL pointer dereference > Jul 12 09:44:20 kepler at 000000dc > Jul 12 09:44:20 kepler IP: > Jul 12 09:44:20 kepler [<f8fbe46e>] rc_g_keycode_from_table+0x1e/0xe0 > [rc_core] > Jul 12 09:44:20 kepler *pde = 00000000 > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler Oops: 0000 [#1] > Jul 12 09:44:20 kepler PREEMPT > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler last sysfs file: > /sys/devices/pci0000:00/0000:00:10.2/usb4/4-2/4-2:1.0/input/input6/capabilities/key > Jul 12 09:44:20 kepler Modules linked in: > Jul 12 09:44:20 kepler imon(+) > Jul 12 09:44:20 kepler netconsole > Jul 12 09:44:20 kepler asb100 > Jul 12 09:44:20 kepler hwmon_vid > Jul 12 09:44:20 kepler cx22702 > Jul 12 09:44:20 kepler dvb_pll > Jul 12 09:44:20 kepler mt352 > Jul 12 09:44:20 kepler cx88_dvb > Jul 12 09:44:20 kepler cx88_vp3054_i2c > Jul 12 09:44:20 kepler rc_winfast > Jul 12 09:44:20 kepler ir_lirc_codec > Jul 12 09:44:20 kepler lirc_dev > Jul 12 09:44:20 kepler ir_sony_decoder > Jul 12 09:44:20 kepler videobuf_dvb > Jul 12 09:44:20 kepler ir_jvc_decoder > Jul 12 09:44:20 kepler ir_rc6_decoder > Jul 12 09:44:20 kepler snd_via82xx > Jul 12 09:44:20 kepler cx8802 > Jul 12 09:44:20 kepler cx8800 > Jul 12 09:44:20 kepler ir_rc5_decoder > Jul 12 09:44:20 kepler ir_nec_decoder > Jul 12 09:44:20 kepler snd_ac97_codec > Jul 12 09:44:20 kepler ac97_bus > Jul 12 09:44:20 kepler cx88xx > Jul 12 09:44:20 kepler rc_core > Jul 12 09:44:20 kepler b44 > Jul 12 09:44:20 kepler i2c_algo_bit > Jul 12 09:44:20 kepler snd_mpu401_uart > Jul 12 09:44:20 kepler tveeprom > Jul 12 09:44:20 kepler snd_rawmidi > Jul 12 09:44:20 kepler btcx_risc > Jul 12 09:44:20 kepler i2c_viapro > Jul 12 09:44:20 kepler videobuf_dma_sg > Jul 12 09:44:20 kepler ssb > Jul 12 09:44:20 kepler mii > Jul 12 09:44:20 kepler videobuf_core > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler Pid: 2981, comm: input_id Not tainted 2.6.39.3 #2 > Jul 12 09:44:20 kepler System Manufacturer System Name > Jul 12 09:44:20 kepler /A7V8X > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler EIP: 0060:[<f8fbe46e>] EFLAGS: 00010002 CPU: 0 > Jul 12 09:44:20 kepler EIP is at rc_g_keycode_from_table+0x1e/0xe0 [rc_core] > Jul 12 09:44:20 kepler EAX: 00000000 EBX: f57f2000 ECX: 00000008 EDX: > 00000000 > Jul 12 09:44:20 kepler ESI: 00000000 EDI: 00000000 EBP: f7007e48 ESP: > f7007e18 > Jul 12 09:44:20 kepler DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 > Jul 12 09:44:20 kepler Process input_id (pid: 2981, ti=f7006000 > task=f5101a40 task.ti=f5102000) > Jul 12 09:44:20 kepler Stack: > Jul 12 09:44:20 kepler 00000001 > Jul 12 09:44:20 kepler f7007e30 > Jul 12 09:44:20 kepler c101e9ae > Jul 12 09:44:20 kepler f7088a60 > Jul 12 09:44:20 kepler 00000001 > Jul 12 09:44:20 kepler f7088a60 > Jul 12 09:44:20 kepler 00000000 > Jul 12 09:44:20 kepler 00000086 > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler f7007e50 > Jul 12 09:44:20 kepler f57f2000 > Jul 12 09:44:20 kepler 00000000 > Jul 12 09:44:20 kepler 00000000 > Jul 12 09:44:20 kepler f7007e58 > Jul 12 09:44:20 kepler f87c259c > Jul 12 09:44:20 kepler f57f2000 > Jul 12 09:44:20 kepler f57f2041 > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler f7007edc > Jul 12 09:44:20 kepler f87c26dc > Jul 12 09:44:20 kepler f68880a4 > Jul 12 09:44:20 kepler f7007e6c > Jul 12 09:44:20 kepler c11a0865 > Jul 12 09:44:20 kepler f7007e74 > Jul 12 09:44:20 kepler f68880a4 > Jul 12 09:44:20 kepler f7007e98 > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler Call Trace: > Jul 12 09:44:20 kepler [<c101e9ae>] ? T.889+0x2e/0x50 > Jul 12 09:44:20 kepler [<f87c259c>] imon_remote_key_lookup+0x1c/0x70 [imon] > Jul 12 09:44:20 kepler [<f87c26dc>] imon_incoming_packet+0x5c/0xe10 [imon] > Jul 12 09:44:20 kepler [<c11a0865>] ? blk_complete_request+0x15/0x20 > Jul 12 09:44:20 kepler [<c12572c8>] ? atapi_qc_complete+0x58/0x2b0 > Jul 12 09:44:20 kepler [<c124f353>] ? __ata_qc_complete+0x73/0x110 > Jul 12 09:44:20 kepler [<f87c3563>] usb_rx_callback_intf0+0x63/0x70 [imon] > Jul 12 09:44:20 kepler [<c1272cc8>] usb_hcd_giveback_urb+0x48/0xb0 > Jul 12 09:44:20 kepler [<c128a5ee>] uhci_giveback_urb+0x8e/0x220 > Jul 12 09:44:20 kepler [<c128ac16>] uhci_scan_schedule+0x396/0x9a0 > Jul 12 09:44:20 kepler [<c128cfd1>] uhci_irq+0x91/0x170 > Jul 12 09:44:20 kepler [<c1271de1>] usb_hcd_irq+0x21/0x50 > Jul 12 09:44:20 kepler [<c1051246>] handle_irq_event_percpu+0x36/0x140 > Jul 12 09:44:20 kepler [<c1015f06>] ? __io_apic_modify_irq+0x76/0x90 > Jul 12 09:44:20 kepler [<c1053000>] ? handle_edge_irq+0x100/0x100 > Jul 12 09:44:20 kepler [<c1051382>] handle_irq_event+0x32/0x60 > Jul 12 09:44:20 kepler [<c1053045>] handle_fasteoi_irq+0x45/0xc0 > Jul 12 09:44:20 kepler <IRQ> > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler [<c1003cea>] ? do_IRQ+0x3a/0xb0 > Jul 12 09:44:20 kepler [<c1089fcd>] ? sys_read+0x3d/0x70 > Jul 12 09:44:20 kepler [<c13d8d69>] ? common_interrupt+0x29/0x30 > Jul 12 09:44:20 kepler Code: > Jul 12 09:44:20 kepler ff > Jul 12 09:44:20 kepler ff > Jul 12 09:44:20 kepler 8d > Jul 12 09:44:20 kepler 74 > Jul 12 09:44:20 kepler 26 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 8d > Jul 12 09:44:20 kepler bc > Jul 12 09:44:20 kepler 27 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 55 > Jul 12 09:44:20 kepler 89 > Jul 12 09:44:20 kepler e5 > Jul 12 09:44:20 kepler 57 > Jul 12 09:44:20 kepler 56 > Jul 12 09:44:20 kepler 53 > Jul 12 09:44:20 kepler 83 > Jul 12 09:44:20 kepler ec > Jul 12 09:44:20 kepler 24 > Jul 12 09:44:20 kepler 89 > Jul 12 09:44:20 kepler 45 > Jul 12 09:44:20 kepler e8 > Jul 12 09:44:20 kepler 9c > Jul 12 09:44:20 kepler 8f > Jul 12 09:44:20 kepler 45 > Jul 12 09:44:20 kepler ec > Jul 12 09:44:20 kepler fa > Jul 12 09:44:20 kepler 89 > Jul 12 09:44:20 kepler e0 > Jul 12 09:44:20 kepler 25 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler e0 > Jul 12 09:44:20 kepler ff > Jul 12 09:44:20 kepler ff > Jul 12 09:44:20 kepler ff > Jul 12 09:44:20 kepler 40 > Jul 12 09:44:20 kepler 14 > Jul 12 09:44:20 kepler 8b > Jul 12 09:44:20 kepler 45 > Jul 12 09:44:20 kepler e8 > Jul 12 09:44:20 kepler syslog-ng[2061]: Error processing log message: <8b> > Jul 12 09:44:20 kepler 80 > Jul 12 09:44:20 kepler dc > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 00 > Jul 12 09:44:20 kepler 89 > Jul 12 09:44:20 kepler c3 > Jul 12 09:44:20 kepler 89 > Jul 12 09:44:20 kepler 45 > Jul 12 09:44:20 kepler f0 > Jul 12 09:44:20 kepler 4b > Jul 12 09:44:20 kepler 78 > Jul 12 09:44:20 kepler 38 > Jul 12 09:44:20 kepler 8b > Jul 12 09:44:20 kepler 45 > Jul 12 09:44:20 kepler e8 > Jul 12 09:44:20 kepler 31 > Jul 12 09:44:20 kepler c9 > Jul 12 09:44:20 kepler 8b > Jul 12 09:44:20 kepler b0 > Jul 12 09:44:20 kepler > Jul 12 09:44:20 kepler EIP: [<f8fbe46e>] > Jul 12 09:44:20 kepler rc_g_keycode_from_table+0x1e/0xe0 [rc_core] > Jul 12 09:44:20 kepler SS:ESP 0068:f7007e18 > Jul 12 09:44:20 kepler CR2: 00000000000000dc > Jul 12 09:44:20 kepler ---[ end trace 3be02180d283b5a7 ]--- > Jul 12 09:44:20 kepler Kernel panic - not syncing: Fatal exception in > interrupt > Jul 12 09:44:20 kepler Pid: 2981, comm: input_id Tainted: G D > 2.6.39.3 #2 > Jul 12 09:44:20 kepler Call Trace: > Jul 12 09:44:20 kepler [<c13d6279>] panic+0x61/0x145 > Jul 12 09:44:20 kepler [<c1004ff0>] oops_end+0x80/0x80 > Jul 12 09:44:20 kepler [<c101906e>] no_context+0xbe/0x150 > Jul 12 09:44:20 kepler [<c101918f>] __bad_area_nosemaphore+0x8f/0x130 > Jul 12 09:44:20 kepler [<c1019242>] bad_area_nosemaphore+0x12/0x20 > Jul 12 09:44:20 kepler [<c10195fb>] do_page_fault+0x24b/0x410 > Jul 12 09:44:20 kepler [<c128bdf6>] ? uhci_alloc_td+0x16/0x40 > Jul 12 09:44:20 kepler [<c10400e5>] ? T.312+0x15/0x1b0 > Jul 12 09:44:20 kepler [<c10193b0>] ? mm_fault_error+0xe0/0xe0 > Jul 12 09:44:20 kepler [<c13d85f4>] error_code+0x58/0x60 > Jul 12 09:44:20 kepler [<c10193b0>] ? mm_fault_error+0xe0/0xe0 > Jul 12 09:44:20 kepler [<f8fbe46e>] ? rc_g_keycode_from_table+0x1e/0xe0 > [rc_core] > Jul 12 09:44:20 kepler [<c101e9ae>] ? T.889+0x2e/0x50 > Jul 12 09:44:20 kepler [<f87c259c>] imon_remote_key_lookup+0x1c/0x70 [imon] > Jul 12 09:44:20 kepler [<f87c26dc>] imon_incoming_packet+0x5c/0xe10 [imon] > Jul 12 09:44:20 kepler [<c11a0865>] ? blk_complete_request+0x15/0x20 > Jul 12 09:44:20 kepler [<c12572c8>] ? atapi_qc_complete+0x58/0x2b0 > Jul 12 09:44:20 kepler [<c124f353>] ? __ata_qc_complete+0x73/0x110 > Jul 12 09:44:20 kepler [<f87c3563>] usb_rx_callback_intf0+0x63/0x70 [imon] > Jul 12 09:44:20 kepler [<c1272cc8>] usb_hcd_giveback_urb+0x48/0xb0 > Jul 12 09:44:20 kepler [<c128a5ee>] uhci_giveback_urb+0x8e/0x220 > Jul 12 09:44:20 kepler [<c128ac16>] uhci_scan_schedule+0x396/0x9a0 > Jul 12 09:44:20 kepler [<c128cfd1>] uhci_irq+0x91/0x170 > Jul 12 09:44:20 kepler [<c1271de1>] usb_hcd_irq+0x21/0x50 > Jul 12 09:44:20 kepler [<c1051246>] handle_irq_event_percpu+0x36/0x140 > Jul 12 09:44:20 kepler [<c1015f06>] ? __io_apic_modify_irq+0x76/0x90 > Jul 12 09:44:20 kepler [<c1053000>] ? handle_edge_irq+0x100/0x100 > Jul 12 09:44:20 kepler [<c1051382>] handle_irq_event+0x32/0x60 > Jul 12 09:44:20 kepler [<c1053045>] handle_fasteoi_irq+0x45/0xc0 > Jul 12 09:44:20 kepler <IRQ> > Jul 12 09:44:20 kepler [<c1003cea>] ? do_IRQ+0x3a/0xb0 > Jul 12 09:44:20 kepler [<c1089fcd>] ? sys_read+0x3d/0x70 > Jul 12 09:44:20 kepler [<c13d8d69>] ? common_interrupt+0x29/0x30 > > > > > root@...ler # lsusb -v -d 15c2:ffdc > Bus 004 Device 003: ID 15c2:ffdc SoundGraph Inc. iMON PAD Remote Controller > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.10 > bDeviceClass 0 (Defined at Interface level) > bDeviceSubClass 0 > bDeviceProtocol 0 > bMaxPacketSize0 8 > idVendor 0x15c2 SoundGraph Inc. > idProduct 0xffdc iMON PAD Remote Controller > bcdDevice 0.00 > iManufacturer 0 > iProduct 0 > iSerial 0 > bNumConfigurations 1 > Configuration Descriptor: > bLength 9 > bDescriptorType 2 > wTotalLength 41 > bNumInterfaces 1 > bConfigurationValue 1 > iConfiguration 0 > bmAttributes 0x80 > (Bus Powered) > MaxPower 100mA > Interface Descriptor: > bLength 9 > bDescriptorType 4 > bInterfaceNumber 0 > bAlternateSetting 0 > bNumEndpoints 2 > bInterfaceClass 0 (Defined at Interface level) > bInterfaceSubClass 0 > bInterfaceProtocol 0 > iInterface 0 > ** UNRECOGNIZED: 09 21 00 01 00 01 22 25 00 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x02 EP 2 OUT > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 > Device Status: 0x0000 > (Bus Powered) > > > > # Kernel options from Media/RC > # > # Multimedia drivers > # > CONFIG_RC_CORE=m > CONFIG_LIRC=m > CONFIG_RC_MAP=m > CONFIG_IR_NEC_DECODER=m > CONFIG_IR_RC5_DECODER=m > CONFIG_IR_RC6_DECODER=m > CONFIG_IR_JVC_DECODER=m > CONFIG_IR_SONY_DECODER=m > CONFIG_IR_RC5_SZ_DECODER=m > CONFIG_IR_LIRC_CODEC=m > # CONFIG_IR_ENE is not set > CONFIG_IR_IMON=m > CONFIG_IR_MCEUSB=m > # CONFIG_IR_ITE_CIR is not set > # CONFIG_IR_NUVOTON is not set > # CONFIG_IR_STREAMZAP is not set > # CONFIG_IR_WINBOND_CIR is not set > # CONFIG_RC_LOOPBACK is not set > > > # cat /proc/cpuinfo > processor : 0 > vendor_id : AuthenticAMD > cpu family : 6 > model : 8 > model name : AMD Athlon(TM) XP 2400+ > stepping : 1 > cpu MHz : 2000.091 > cache size : 256 KB > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca > cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow > bogomips : 4000.18 > clflush size : 32 > cache_alignment : 32 > address sizes : 34 bits physical, 32 bits virtual > power management: ts > > -- > Chris Williams > Brisbane, Australia > > -- --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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