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Message-ID: <4E1CCC26.4060506@psychogeeks.com> Date: Wed, 13 Jul 2011 08:35:18 +1000 From: Chris W <lkml@...chogeeks.com> To: Jarod Wilson <jarod@...sonet.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 Thanks for the reply. On 13/07/11 05:55, Jarod Wilson wrote: > > 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. There is only one imon device in this machine. kepler ~ $ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 002: ID 0471:0815 Philips (or NXP) eHome Infrared Receiver Bus 004 Device 002: ID 0dc6:2011 Precision Squared Technology Corp. Bus 004 Device 003: ID 15c2:ffdc SoundGraph Inc. iMON PAD Remote Controller The Philips device is a Microsoft branded MCE remote dongle. The Precision Squared device is the media control keypad on the case (claimed by USB HID). The rc keymap modules have been built (en masse as a result of CONFIG_RC_MAP=m) but I am not explicitly loading them and they do not get automatically loaded. kepler ~ # ls -l /lib/modules/2.6.39.3/kernel/drivers/media/rc/keymaps/ total 352 --8<-- snip -rw-r--r-- 1 root root 3018 Jul 12 09:34 rc-imon-mce.ko -rw-r--r-- 1 root root 3146 Jul 12 09:34 rc-imon-pad.ko --8<-- snip The ir_*_decoder and rc_winfast modules you can see loaded have been automatically loaded during boot (udev I assume). Loading the mceusb module automatically loads the rc_rc6_mce keymap module. I just tried this: kepler ~ # rmmod rc_winfast ir_lirc_codec lirc_dev ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder ir_nec_decoder kepler ~ # modprobe -v rc-imon-pad insmod /lib/modules/2.6.39.3/kernel/drivers/media/rc/keymaps/rc-imon-pad.ko kepler ~ # modprobe -v rc-imon-mce insmod /lib/modules/2.6.39.3/kernel/drivers/media/rc/keymaps/rc-imon-mce.ko kepler ~ # lsmod Module Size Used by rc_imon_mce 1161 0 rc_imon_pad 1289 0 asb100 8772 0 hwmon_vid 2016 1 asb100 nvidia 7029915 24 cx22702 4117 1 dvb_pll 7836 3 mt352 4637 2 cx88_dvb 19835 3 cx88_vp3054_i2c 1295 1 cx88_dvb videobuf_dvb 3778 1 cx88_dvb snd_via82xx 16242 0 cx8800 23903 0 snd_ac97_codec 86082 1 snd_via82xx cx8802 11067 1 cx88_dvb ac97_bus 770 1 snd_ac97_codec b44 22202 0 cx88xx 65916 3 cx88_dvb,cx8800,cx8802 snd_mpu401_uart 4679 1 snd_via82xx ssb 27969 1 b44 rc_core 12781 4 rc_imon_mce,rc_imon_pad,cx88xx i2c_algo_bit 4248 2 cx88_vp3054_i2c,cx88xx tveeprom 10545 1 cx88xx snd_rawmidi 15080 1 snd_mpu401_uart btcx_risc 2671 3 cx8800,cx8802,cx88xx videobuf_dma_sg 6392 4 cx88_dvb,cx8800,cx8802,cx88xx videobuf_core 13519 5 videobuf_dvb,cx8800,cx8802,cx88xx,videobuf_dma_sg mii 3271 1 b44 i2c_viapro 4523 0 kepler ~ # modprobe netconsole kepler ~ # modprobe -v imon debug=1 insmod /lib/modules/2.6.39.3/kernel/drivers/media/rc/imon.ko debug=1 with the same crash (below). (I have the tainting nvidia driver loaded today but it was absent yesterday) Perhaps there something else in the kernel config that must be on in order to support the keymaps? Any other thoughts? Regards, Chris Jul 13 08:21:14 kepler BUG: unable to handle kernel Jul 13 08:21:14 kepler NULL pointer dereference Jul 13 08:21:14 kepler at 000000dc Jul 13 08:21:14 kepler IP: Jul 13 08:21:14 kepler [<f8f9d46e>] rc_g_keycode_from_table+0x1e/0xe0 [rc_core] Jul 13 08:21:14 kepler *pde = 00000000 Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler Oops: 0000 [#1] Jul 13 08:21:14 kepler PREEMPT Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler last sysfs file: /sys/devices/pci0000:00/0000:00:10.2/usb4/4-2/4-2:1.0/input/input6/capabilities/key Jul 13 08:21:14 kepler Modules linked in: Jul 13 08:21:14 kepler imon(+) Jul 13 08:21:14 kepler netconsole Jul 13 08:21:14 kepler rc_imon_mce Jul 13 08:21:14 kepler rc_imon_pad Jul 13 08:21:14 kepler asb100 Jul 13 08:21:14 kepler hwmon_vid Jul 13 08:21:14 kepler nvidia(P) Jul 13 08:21:14 kepler cx22702 Jul 13 08:21:14 kepler dvb_pll Jul 13 08:21:14 kepler mt352 Jul 13 08:21:14 kepler cx88_dvb Jul 13 08:21:14 kepler cx88_vp3054_i2c Jul 13 08:21:14 kepler videobuf_dvb Jul 13 08:21:14 kepler snd_via82xx Jul 13 08:21:14 kepler cx8800 Jul 13 08:21:14 kepler snd_ac97_codec Jul 13 08:21:14 kepler cx8802 Jul 13 08:21:14 kepler ac97_bus Jul 13 08:21:14 kepler b44 Jul 13 08:21:14 kepler cx88xx Jul 13 08:21:14 kepler snd_mpu401_uart Jul 13 08:21:14 kepler ssb Jul 13 08:21:14 kepler rc_core Jul 13 08:21:14 kepler i2c_algo_bit Jul 13 08:21:14 kepler tveeprom Jul 13 08:21:14 kepler snd_rawmidi Jul 13 08:21:14 kepler btcx_risc Jul 13 08:21:14 kepler videobuf_dma_sg Jul 13 08:21:14 kepler videobuf_core Jul 13 08:21:14 kepler mii Jul 13 08:21:14 kepler i2c_viapro Jul 13 08:21:14 kepler [last unloaded: rc_imon_pad] Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler Pid: 2513, comm: udevd Tainted: P 2.6.39.3 #2 Jul 13 08:21:14 kepler System Manufacturer System Name Jul 13 08:21:14 kepler /A7V8X Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler EIP: 0060:[<f8f9d46e>] EFLAGS: 00010002 CPU: 0 Jul 13 08:21:14 kepler EIP is at rc_g_keycode_from_table+0x1e/0xe0 [rc_core] Jul 13 08:21:14 kepler EAX: 00000000 EBX: f39a2000 ECX: 00000008 EDX: 00000000 Jul 13 08:21:14 kepler ESI: 00000000 EDI: 00000000 EBP: f7007e48 ESP: f7007e18 Jul 13 08:21:14 kepler DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 Jul 13 08:21:14 kepler Process udevd (pid: 2513, ti=f7006000 task=f724fa60 task.ti=f5a68000) Jul 13 08:21:14 kepler Stack: Jul 13 08:21:14 kepler 00000001 Jul 13 08:21:14 kepler f7007e30 Jul 13 08:21:14 kepler c101e9ae Jul 13 08:21:14 kepler f71f2280 Jul 13 08:21:14 kepler 00000001 Jul 13 08:21:14 kepler f71f2280 Jul 13 08:21:14 kepler 00000000 Jul 13 08:21:14 kepler 00000086 Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler 00000082 Jul 13 08:21:14 kepler f39a2000 Jul 13 08:21:14 kepler 00000000 Jul 13 08:21:14 kepler 00000000 Jul 13 08:21:14 kepler f7007e58 Jul 13 08:21:14 kepler f8e3759c Jul 13 08:21:14 kepler f39a2000 Jul 13 08:21:14 kepler f39a2041 Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler f7007edc Jul 13 08:21:14 kepler f8e376dc Jul 13 08:21:14 kepler f7007e90 Jul 13 08:21:14 kepler f7007e80 Jul 13 08:21:14 kepler f68f8b20 Jul 13 08:21:14 kepler fbcde004 Jul 13 08:21:14 kepler f69e5008 Jul 13 08:21:14 kepler f69e5000 Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler Call Trace: Jul 13 08:21:14 kepler [<c101e9ae>] ? T.889+0x2e/0x50 Jul 13 08:21:14 kepler [<f8e3759c>] imon_remote_key_lookup+0x1c/0x70 [imon] Jul 13 08:21:14 kepler [<f8e376dc>] imon_incoming_packet+0x5c/0xe10 [imon] Jul 13 08:21:14 kepler [<fbcde004>] ? _nv004358rm+0x24/0x70 [nvidia] Jul 13 08:21:14 kepler [<fbcde030>] ? _nv004358rm+0x50/0x70 [nvidia] Jul 13 08:21:14 kepler [<c124f353>] ? __ata_qc_complete+0x73/0x110 Jul 13 08:21:14 kepler [<f8e38563>] usb_rx_callback_intf0+0x63/0x70 [imon] Jul 13 08:21:14 kepler [<c1272cc8>] usb_hcd_giveback_urb+0x48/0xb0 Jul 13 08:21:14 kepler [<c128a5ee>] uhci_giveback_urb+0x8e/0x220 Jul 13 08:21:14 kepler [<c128ac16>] uhci_scan_schedule+0x396/0x9a0 Jul 13 08:21:14 kepler [<c128cfd1>] uhci_irq+0x91/0x170 Jul 13 08:21:14 kepler [<c1271de1>] usb_hcd_irq+0x21/0x50 Jul 13 08:21:14 kepler [<c1051246>] handle_irq_event_percpu+0x36/0x140 Jul 13 08:21:14 kepler [<c1015f06>] ? __io_apic_modify_irq+0x76/0x90 Jul 13 08:21:14 kepler [<c1053000>] ? handle_edge_irq+0x100/0x100 Jul 13 08:21:14 kepler [<c1051382>] handle_irq_event+0x32/0x60 Jul 13 08:21:14 kepler [<c1053045>] handle_fasteoi_irq+0x45/0xc0 Jul 13 08:21:14 kepler <IRQ> Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler [<c1003cea>] ? do_IRQ+0x3a/0xb0 Jul 13 08:21:14 kepler [<c13d8d69>] ? common_interrupt+0x29/0x30 Jul 13 08:21:14 kepler [<c10d517e>] ? sysfs_dentry_revalidate+0xbe/0xd0 Jul 13 08:21:14 kepler [<c1092ce9>] ? do_lookup+0x149/0x250 Jul 13 08:21:14 kepler [<c1093254>] ? link_path_walk+0x164/0x8c0 Jul 13 08:21:14 kepler [<c109547d>] ? path_init+0x2dd/0x3b0 Jul 13 08:21:14 kepler [<c109559c>] ? path_lookupat+0x4c/0x720 Jul 13 08:21:14 kepler [<c1076124>] ? handle_pte_fault+0x2a4/0x590 Jul 13 08:21:14 kepler [<c1095c95>] ? do_path_lookup+0x25/0x70 Jul 13 08:21:14 kepler [<c1096736>] ? user_path_at+0x36/0x70 Jul 13 08:21:14 kepler [<c108d221>] ? sys_readlinkat+0x31/0xa0 Jul 13 08:21:14 kepler [<c108d2b7>] ? sys_readlink+0x27/0x30 Jul 13 08:21:14 kepler [<c13d8850>] ? sysenter_do_call+0x12/0x26 Jul 13 08:21:14 kepler Code: Jul 13 08:21:14 kepler ff Jul 13 08:21:14 kepler ff Jul 13 08:21:14 kepler 8d Jul 13 08:21:14 kepler 74 Jul 13 08:21:14 kepler 26 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 8d Jul 13 08:21:14 kepler bc Jul 13 08:21:14 kepler 27 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 55 Jul 13 08:21:14 kepler 89 Jul 13 08:21:14 kepler e5 Jul 13 08:21:14 kepler 57 Jul 13 08:21:14 kepler 56 Jul 13 08:21:14 kepler 53 Jul 13 08:21:14 kepler 83 Jul 13 08:21:14 kepler ec Jul 13 08:21:14 kepler 24 Jul 13 08:21:14 kepler 89 Jul 13 08:21:14 kepler 45 Jul 13 08:21:14 kepler e8 Jul 13 08:21:14 kepler 9c Jul 13 08:21:14 kepler 8f Jul 13 08:21:14 kepler 45 Jul 13 08:21:14 kepler ec Jul 13 08:21:14 kepler fa Jul 13 08:21:14 kepler 89 Jul 13 08:21:14 kepler e0 Jul 13 08:21:14 kepler 25 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler e0 Jul 13 08:21:14 kepler ff Jul 13 08:21:14 kepler ff Jul 13 08:21:14 kepler ff Jul 13 08:21:14 kepler 40 Jul 13 08:21:14 kepler 14 Jul 13 08:21:14 kepler 8b Jul 13 08:21:14 kepler 45 Jul 13 08:21:14 kepler e8 Jul 13 08:21:14 kepler syslog-ng[2058]: Error processing log message: <8b> Jul 13 08:21:14 kepler 80 Jul 13 08:21:14 kepler dc Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 00 Jul 13 08:21:14 kepler 89 Jul 13 08:21:14 kepler c3 Jul 13 08:21:14 kepler 89 Jul 13 08:21:14 kepler 45 Jul 13 08:21:14 kepler f0 Jul 13 08:21:14 kepler 4b Jul 13 08:21:14 kepler 78 Jul 13 08:21:14 kepler 38 Jul 13 08:21:14 kepler 8b Jul 13 08:21:14 kepler 45 Jul 13 08:21:14 kepler e8 Jul 13 08:21:14 kepler 31 Jul 13 08:21:14 kepler c9 Jul 13 08:21:14 kepler 8b Jul 13 08:21:14 kepler b0 Jul 13 08:21:14 kepler Jul 13 08:21:14 kepler EIP: [<f8f9d46e>] Jul 13 08:21:14 kepler rc_g_keycode_from_table+0x1e/0xe0 [rc_core] Jul 13 08:21:14 kepler SS:ESP 0068:f7007e18 Jul 13 08:21:14 kepler CR2: 00000000000000dc Jul 13 08:21:14 kepler ---[ end trace 05456f0fc2588a75 ]--- Jul 13 08:21:14 kepler Kernel panic - not syncing: Fatal exception in interrupt Jul 13 08:21:14 kepler Pid: 2513, comm: udevd Tainted: P D 2.6.39.3 #2 Jul 13 08:21:14 kepler Call Trace: Jul 13 08:21:14 kepler [<c13d6279>] panic+0x61/0x145 Jul 13 08:21:14 kepler [<c1004ff0>] oops_end+0x80/0x80 Jul 13 08:21:14 kepler [<c101906e>] no_context+0xbe/0x150 Jul 13 08:21:14 kepler [<c101918f>] __bad_area_nosemaphore+0x8f/0x130 Jul 13 08:21:14 kepler [<c1019242>] bad_area_nosemaphore+0x12/0x20 Jul 13 08:21:14 kepler [<c10195fb>] do_page_fault+0x24b/0x410 Jul 13 08:21:14 kepler [<c128bdf6>] ? uhci_alloc_td+0x16/0x40 Jul 13 08:21:14 kepler [<c10400e5>] ? T.312+0x15/0x1b0 Jul 13 08:21:14 kepler [<c10193b0>] ? mm_fault_error+0xe0/0xe0 Jul 13 08:21:14 kepler [<c13d85f4>] error_code+0x58/0x60 Jul 13 08:21:14 kepler [<c10193b0>] ? mm_fault_error+0xe0/0xe0 Jul 13 08:21:14 kepler [<f8f9d46e>] ? rc_g_keycode_from_table+0x1e/0xe0 [rc_core] Jul 13 08:21:14 kepler [<c101e9ae>] ? T.889+0x2e/0x50 Jul 13 08:21:14 kepler [<f8e3759c>] imon_remote_key_lookup+0x1c/0x70 [imon] Jul 13 08:21:14 kepler [<f8e376dc>] imon_incoming_packet+0x5c/0xe10 [imon] Jul 13 08:21:14 kepler [<fbcde004>] ? _nv004358rm+0x24/0x70 [nvidia] Jul 13 08:21:14 kepler [<fbcde030>] ? _nv004358rm+0x50/0x70 [nvidia] Jul 13 08:21:14 kepler [<c124f353>] ? __ata_qc_complete+0x73/0x110 Jul 13 08:21:14 kepler [<f8e38563>] usb_rx_callback_intf0+0x63/0x70 [imon] Jul 13 08:21:14 kepler [<c1272cc8>] usb_hcd_giveback_urb+0x48/0xb0 Jul 13 08:21:14 kepler [<c128a5ee>] uhci_giveback_urb+0x8e/0x220 Jul 13 08:21:14 kepler [<c128ac16>] uhci_scan_schedule+0x396/0x9a0 Jul 13 08:21:14 kepler [<c128cfd1>] uhci_irq+0x91/0x170 Jul 13 08:21:14 kepler [<c1271de1>] usb_hcd_irq+0x21/0x50 Jul 13 08:21:14 kepler [<c1051246>] handle_irq_event_percpu+0x36/0x140 Jul 13 08:21:14 kepler [<c1015f06>] ? __io_apic_modify_irq+0x76/0x90 Jul 13 08:21:14 kepler [<c1053000>] ? handle_edge_irq+0x100/0x100 Jul 13 08:21:14 kepler [<c1051382>] handle_irq_event+0x32/0x60 Jul 13 08:21:14 kepler [<c1053045>] handle_fasteoi_irq+0x45/0xc0 Jul 13 08:21:14 kepler <IRQ> Jul 13 08:21:14 kepler [<c1003cea>] ? do_IRQ+0x3a/0xb0 Jul 13 08:21:14 kepler [<c13d8d69>] ? common_interrupt+0x29/0x30 Jul 13 08:21:14 kepler [<c10d517e>] ? sysfs_dentry_revalidate+0xbe/0xd0 Jul 13 08:21:14 kepler [<c1092ce9>] ? do_lookup+0x149/0x250 Jul 13 08:21:14 kepler [<c1093254>] ? link_path_walk+0x164/0x8c0 Jul 13 08:21:14 kepler [<c109547d>] ? path_init+0x2dd/0x3b0 Jul 13 08:21:14 kepler [<c109559c>] ? path_lookupat+0x4c/0x720 Jul 13 08:21:14 kepler [<c1076124>] ? handle_pte_fault+0x2a4/0x590 Jul 13 08:21:14 kepler [<c1095c95>] ? do_path_lookup+0x25/0x70 Jul 13 08:21:14 kepler [<c1096736> Jul 13 08:21:14 kepler ] ? user_path_at+0x36/0x70 Jul 13 08:21:14 kepler [<c108d221>] ? sys_readlinkat+0x31/0xa0 Jul 13 08:21:14 kepler [<c108d2b7>] ? sys_readlink+0x27/0x30 Jul 13 08:21:14 kepler [<c13d8850>] ? sysenter_do_call+0x12/0x26 -- Chris Williams Brisbane, Australia -- 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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