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Message-Id: <7B814F02-408C-434F-B813-8630B60914DA@wilsonet.com> Date: Tue, 12 Jul 2011 15:55:52 -0400 From: Jarod Wilson <jarod@...sonet.com> To: Chris W <lkml@...chogeeks.com> Cc: Linux Media Mailing List <linux-media@...r.kernel.org>, linux-kernel@...r.kernel.org, Randy Dunlap <rdunlap@...otime.net> Subject: Re: Imon module Oops and kernel hang On Jul 12, 2011, at 11:03 AM, Randy Dunlap wrote: > [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. I don't see any rc_imon_pad or rc_imon_mce modules there, and I've not seen any panics with multiple imon devices here, so I'm guessing you didn't build either of the possible imon keymaps, and having a null keymap is interacting badly with rc_g_keycode_from_table. >> 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-media" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Jarod Wilson jarod@...sonet.com -- 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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