Hi, the latest trace:
[ 106.802086] ivtv0: frame count 1 af0fece8 [ 106.802094] ivtv0: frame count 2, f5e40000 [ 106.802506] ivtv0: frame count 3, 12 f5e4f2b4 [ 106.802510] ivtv0: frame count 4 [ 106.802512] ivtv0: frame count 5 [ 106.802515] ivtv0: frame count 6 [ 106.806011] ivtv0: frame count 1 af0fece8 [ 106.806015] ivtv0: frame count 2, f5e40000 [ 106.849616] ivtv0: frame count 3, 12 f5e4f2b4 [ 106.849620] ivtv0: frame count 4 [ 106.849623] ivtv0: frame count 5 [ 106.849627] ivtv0: frame count 6 [ 106.892057] ivtv0: frame count 1 af0fece8 [ 106.892065] ivtv0: frame count 2, f5e40000 [ 106.904646] ivtv0: frame count 3, 12 f5e4f2b4 [ 106.904652] ivtv0: frame count 4 [ 106.904656] ivtv0: frame count 5 [ 106.904693] BUG: unable to handle kernel paging request at af0fece8 [ 106.904702] IP: [<f7fa65cc>] ivtv_decoder_ioctls+0x8fc/0x920 [ivtv] [ 106.904730] *pde = 76cac067 [ 106.904737] Oops: 0003 [#1] SMP [ 106.904743] last sysfs file: /sys/devices/pci0000:00/0000:00:13.4/pools [ 106.904750] Dumping ftrace buffer: [ 106.904757] (ftrace buffer empty) [ 106.904760] Modules linked in: binfmt_misc powernow_k8 cx8800 cx88xx video output bttv input_polldev ir_common videobuf_dma_sg videobuf_core btcx_risc lirc_i2c lirc_dev iptable_filter ip_tables x_tables dm_crypt ivtvfb it87 hwmon_vid sbp2 tuner_simple tuner_types tuner msp3400 saa7127 serio_raw pcspkr saa7115 k8temp ivtv i2c_algo_bit cx2341x v4l2_common videodev v4l1_compat tveeprom qt1010 zl10353 usblp dvb_usb_gl861 dvb_usb dvb_core i2c_piix4 lmpcm_usb usbhid snd_usb_audio snd_usb_lib snd_hwdep snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore snd_page_alloc fglrx(P) parport_pc parport ati_agp agpgart shpchp usb_storage firewire_ohci firewire_core crc_itu_t ohci1394 ieee1394 ehci_hcd ohci_hcd r8169 mii fuse fbcon tileblit font bitblit softcursor [ 106.904867] [ 106.904874] Pid: 5374, comm: mythfrontend.re Tainted: P (2.6.28-7-generic #20-Ubuntu) System Product Name [ 106.904881] EIP: 0060:[<f7fa65cc>] EFLAGS: 00010282 CPU: 1 [ 106.904898] EIP is at ivtv_decoder_ioctls+0x8fc/0x920 [ivtv] [ 106.904903] EAX: 00000027 EBX: f5e40084 ECX: af0fece8 EDX: 0178b000 [ 106.904907] ESI: 00000000 EDI: f5e4f2c0 EBP: f168df18 ESP: f168dd8c [ 106.904912] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 106.904917] Process mythfrontend.re (pid: 5374, ti=f168c000 task=f16857f0 task.ti=f168c000) [ 106.904922] Stack: [ 106.904924] f7fb5b13 f5e40084 0000000c f5e4f2b4 00000800 af0fece8 00003fbe f5e40000 [ 106.904936] 00000000 e34a1c20 00000018 00000000 f168dde4 c0154d83 e336305f 00000018 [ 106.904948] f168ddf8 c1f165a0 0114c2c0 e34a1c20 00000018 00000002 f168ddf8 c0154e6b [ 106.904960] Call Trace: [ 106.904971] [<c0154d83>] ? tick_dev_program_event+0x33/0xc0 [ 106.904985] [<c0154e6b>] ? tick_program_event+0x2b/0x40 [ 106.904992] [<c014cb46>] ? hrtimer_interrupt+0x186/0x1b0 [ 106.905002] [<c013936f>] ? irq_exit+0x3f/0x90 [ 106.905011] [<c01140db>] ? smp_apic_timer_interrupt+0x5b/0x90 [ 106.905018] [<c0105318>] ? apic_timer_interrupt+0x28/0x30 [ 106.905028] [<f7fa9ce9>] ? ivtv_dequeue+0x59/0x70 [ivtv] [ 106.905047] [<f7f9ee04>] ? ivtv_v4l2_write+0x3b4/0x760 [ivtv] [ 106.905063] [<c012c0e8>] ? enqueue_task_fair+0x68/0x70 [ 106.905072] [<c012bb7e>] ? resched_task+0x1e/0x70 [ 106.905080] [<f7fa665a>] ? ivtv_v4l2_ioctl+0x6a/0x3a0 [ivtv] [ 106.905097] [<c0148bf0>] ? autoremove_wake_function+0x0/0x50 [ 106.905106] [<f7fa65f0>] ? ivtv_v4l2_ioctl+0x0/0x3a0 [ivtv] [ 106.905125] [<f7f5b1f6>] ? v4l2_unlocked_ioctl+0x36/0x50 [videodev] [ 106.905138] [<f7f5b1c0>] ? v4l2_unlocked_ioctl+0x0/0x50 [videodev] [ 106.905147] [<c01c3c58>] ? vfs_ioctl+0x28/0x90 [ 106.905155] [<c01c413e>] ? do_vfs_ioctl+0x5e/0x200 [ 106.905161] [<c01c4343>] ? sys_ioctl+0x63/0x70 [ 106.905167] [<c0103f6b>] ? sysenter_do_call+0x12/0x2f [ 106.905174] Code: 95 90 fe ff ff 05 e9 00 00 00 f0 80 8a e9 00 00 00 40 89 5c 24 04 c7 04 24 13 5b fb f7 e8 36 c3 53 c8 8b 75 b4 8b 8d 88 fe ff ff <89> 31 c7 41 04 00 00 00 00 89 5c 24 04 c7 04 24 29 5b fb f7 e8 [ 106.905232] EIP: [<f7fa65cc>] ivtv_decoder_ioctls+0x8fc/0x920 [ivtv] SS:ESP 0068:f168dd8c [ 106.905345] ---[ end trace 61eee796a5a06d73 ]--- Regards, -jr Hans Verkuil wrote: > On Friday 13 February 2009 22:26:11 [email protected] wrote: >> Hi, >> >> (un)fortunately I am able to reproduce the bug within a few seconds :-( >> >> Here is the trace: > > Thanks, it shows I'm on the right track. But I still don't see what's wrong > with the code. I've refined the debugging so if you can update to my latest > v4l-dvb-ivtv repo and try again? > > I get the feeling it is something stupid and I just read right over it... > > Regards, > > Hans > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
