Hi Andy, all, Were there any known problems in the cx18 locking department regarding video buffers or mailbox handling fixed sometime between 3.5.0 and today? We are seeing some issues there (on a flavour of 3.5.0) and I just wanted to quickly check here before diving in the code. I'll paste below some of the problems we are seeing. cx18-0: Skipped encoder PCM audio, MDL 223, 62 times - it must have dropped out of rotation cx18-0: Could not find MDL 358 for stream encoder PCM audio cx18-0: Skipped encoder PCM audio, MDL 357, 62 times - it must have dropped out of rotation cx18-0: Could not find MDL 218 for stream encoder PCM audio cx18-0: Skipped encoder PCM audio, MDL 217, 62 times - it must have dropped out of rotation ------------[ cut here ]------------ WARNING: at lib/list_debug.c:59 __list_del_entry+0xa1/0xd0() Hardware name: list_del corruption. prev->next should be ffff8800371d1d40, but was dead000000100100 Modules linked in: tun dummy ip6t_REJECT snd_dummy w83627ehf hwmon_vid cx18_alsa mxl5005s s5h1409 tuner_simple tuner_types cs5345 tda9887 tda8290 tuner snd_hda_codec_realtek snd_hda_intel snd_hda_codec cx18 coretemp snd_hwdep dvb_core cx2341x snd_seq videobuf_vmalloc videobuf_core snd_seq_device ppdev tveeprom v4l2_common snd_pcm videodev parport_pc media parport snd_timer snd soundcore lpc_ich i2c_i801 mfd_core r8169 snd_page_alloc mii ftdi_sio serio_raw microcode i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: nf_conntrack] Pid: 5562, comm: player_movie Tainted: G W 3.5.0-93.fc16.x86_64 #1 Call Trace: [<ffffffff8105927f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff81059376>] warn_slowpath_fmt+0x46/0x50 [<ffffffff812e4f81>] __list_del_entry+0xa1/0xd0 [<ffffffff812e4fc1>] list_del+0x11/0x40 [<ffffffffa01cd4b6>] videobuf_queue_cancel+0x66/0x100 [videobuf_core] [<ffffffffa01ce4ee>] videobuf_streamoff+0x2e/0x70 [videobuf_core] [<ffffffffa0221672>] cx18_streamoff+0x52/0x70 [cx18] [<ffffffffa01806e7>] __video_do_ioctl+0x2507/0x5350 [videodev] [<ffffffff8109132f>] ? wakeup_preempt_entity+0x4f/0x60 [<ffffffff8108b1a4>] ? check_preempt_curr+0x84/0xa0 [<ffffffff8109132f>] ? wakeup_preempt_entity+0x4f/0x60 [<ffffffff8108b1fd>] ? ttwu_do_wakeup+0x3d/0x120 [<ffffffffa017dd70>] video_usercopy+0x120/0x570 [videodev] [<ffffffffa017e1e0>] ? video_ioctl2+0x20/0x20 [videodev] [<ffffffff8108e940>] ? wake_up_state+0x10/0x20 [<ffffffff810b11ab>] ? wake_futex+0x3b/0x60 [<ffffffff810b1d10>] ? futex_wake+0x100/0x120 [<ffffffffa017e1d5>] video_ioctl2+0x15/0x20 [videodev] [<ffffffffa02221ce>] cx18_v4l2_ioctl+0x6e/0xa0 [cx18] [<ffffffffa017c783>] v4l2_ioctl+0x113/0x1c0 [videodev] [<ffffffff81092a1d>] ? set_next_entity+0x9d/0xb0 [<ffffffff81198a88>] do_vfs_ioctl+0x98/0x550 [<ffffffff8160f8d4>] ? __schedule+0x3c4/0x7c0 [<ffffffff810b3c7a>] ? sys_futex+0x10a/0x1a0 [<ffffffff81198fd1>] sys_ioctl+0x91/0xa0 [<ffffffff81619129>] system_call_fastpath+0x16/0x1b ---[ end trace 8e1185c5fb30e531 ]--- ------------[ cut here ]------------ WARNING: at lib/list_debug.c:33 __list_add+0xc8/0xd0() Hardware name: list_add corruption. prev->next should be next (ffff88007af48c70), but was (null). (prev=ffff880064dc6d40). Modules linked in: tun dummy ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables snd_dummy w83627ehf hwmon_vid cx18_alsa mxl5005s s5h1409 tuner_simple tuner_types cs5345 tda9887 tda8290 tuner snd_hda_codec_realtek snd_hda_intel snd_hda_codec cx18 coretemp snd_hwdep dvb_core cx2341x snd_seq videobuf_vmalloc videobuf_core snd_seq_device ppdev tveeprom v4l2_common snd_pcm videodev parport_pc media parport snd_timer snd soundcore lpc_ich i2c_i801 mfd_core r8169 snd_page_alloc mii ftdi_sio serio_raw microcode i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan] Pid: 5562, comm: player_movie Tainted: G W 3.5.0-93.fc16.x86_64 #1 Call Trace: [<ffffffff8105927f>] warn_slowpath_common+0x7f/0xc0 [<ffffffff81059376>] warn_slowpath_fmt+0x46/0x50 [<ffffffff812e50b8>] __list_add+0xc8/0xd0 [<ffffffffa021c971>] buffer_queue+0x31/0x40 [cx18] [<ffffffffa01ce456>] videobuf_streamon+0xb6/0x120 [videobuf_core] [<ffffffffa0221722>] cx18_streamon+0x92/0xb0 [cx18] [<ffffffffa018070c>] __video_do_ioctl+0x252c/0x5350 [videodev] [<ffffffffa01d8658>] ? __videobuf_mmap_mapper+0x118/0xac0 [videobuf_vmalloc] [<ffffffff812d471b>] ? prio_tree_insert+0x12b/0x230 [<ffffffffa017dd70>] video_usercopy+0x120/0x570 [videodev] [<ffffffffa017e1e0>] ? video_ioctl2+0x20/0x20 [videodev] [<ffffffffa017e1d5>] video_ioctl2+0x15/0x20 [videodev] [<ffffffffa02221ce>] cx18_v4l2_ioctl+0x6e/0xa0 [cx18] [<ffffffffa017c783>] v4l2_ioctl+0x113/0x1c0 [videodev] [<ffffffff81198a88>] do_vfs_ioctl+0x98/0x550 [<ffffffff81198fd1>] sys_ioctl+0x91/0xa0 [<ffffffff81619129>] system_call_fastpath+0x16/0x1b ---[ end trace 8e1185c5fb30e529 ]--- Regards, Tvrtko -- 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
