Hi, I found the following bug on a machine with 4 cpu's. I tried to synchronize sound and video with xjadeo and ardour and jackd and got the following error. This error appears also within the other cpu's. I used the last svn-sources (svn co https://xjadeo.svn.sourceforge.net/svnroot/xjadeo xjadeo). With kernel 2.6.29.6-rt23 that problem didn't appear. ---snip--- kernel: [ 199.899987] BUG: scheduling while atomic: xjadeo/0x1000020b/5117, CPU#3 Sep 17 14:17:01 myLap kernel: [ 199.899990] Modules linked in: snd_usb_audio snd_usb_lib snd_hwdep cbc cryptd aes_x86_64 aes_generic ppdev bridge stp bnep capifs binfmt_misc coretemp lp parport xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ipt_REJECT snd_hda_codec_nvhdmi xt_limit snd_hda_codec_realtek ipt_LOG joydev snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss arc4 ecb nf_conntrack_ftp snd_pcm nf_conntrack iptable_filter snd_seq_dummy ip_tables iwlagn snd_seq_oss x_tables iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event uvcvideo snd_seq snd_timer snd_seq_device acer_wmi mac80211 videodev snd psmouse v4l1_compat iTCO_wdt soundcore v4l2_compat_ioctl32 serio_raw cfg80211 led_class iTCO_vendor_support snd_page_alloc pcspkr video nvidia(P) output usbhid tg3 Sep 17 14:17:01 myLap kernel: [ 199.900044] Pid: 5117, comm: xjadeo Tainted: P 2.6.31-rt10-rev01 #1 Sep 17 14:17:01 myLap kernel: [ 199.900046] Call Trace: Sep 17 14:17:01 myLap kernel: [ 199.900050] [<ffffffff8104ed2d>] ? finish_task_switch+0x6d/0x130 Sep 17 14:17:01 myLap kernel: [ 199.900054] [<ffffffff8104ecaa>] __schedule_bug+0x6a/0x80 Sep 17 14:17:01 myLap kernel: [ 199.900058] [<ffffffff81510d10>] thread_return+0x1ae/0x78e Sep 17 14:17:01 myLap kernel: [ 199.900062] [<ffffffff81015f07>] ? show_trace_log_lvl+0x57/0x70 Sep 17 14:17:01 myLap kernel: [ 199.900067] [<ffffffff81052a67>] __cond_resched+0x27/ 199.900509] [<ffffffff810df0fc>] ra_submit+0x1c/0x20 Sep 17 14:17:01 myLap kernel: [ 199.900512] [<ffffffff810df32b>] ondemand_readahead+0x12b/0x260 Sep 17 14:17:01 myLap kernel: [ 199.900517] [<ffffffff810df4f9>] page_cache_async_readahead+0x99/0xb0 Sep 17 14:17:01 myLap kernel: [ 199.900521] [<ffffffff810d75e7>] generic_file_aio_read+0x377/0x690 Sep 17 14:17:01 myLap kernel: [ 199.900525] [<ffffffff8108e303>] ? is_module_text_address+0x53/0x60 Sep 17 14:17:01 myLap kernel: [ 199.900530] [<ffffffff811ea8a0>] ecryptfs_read_update_atime+0x20/0x70 Sep 17 14:17:01 myLap kernel: [ 199.900534] [<ffffffff8110ff21>] do_sync_read+0xf1/0x140 Sep 17 14:17:01 myLap kernel: [ 199.900538] [<ffffffff81075c40>] ? autoremove_wake_function+0x0/0x40 Sep 17 14:17:01 myLap kernel: [ 199.900542] [<ffffffff8107fb96>] ? ktime_get_ts+0xb6/0xe0 Sep 17 14:17:01 myLap kernel: [ 199.900546] [<ffffffff81120a47>] ? poll_select_copy_remaining+0xf7/0x150 Sep 17 14:17:01 myLap kernel: [ 199.900551] [<ffffffff81213a31>] ? security_file_permission+0x11/0x20 Sep 17 14:17:01 myLap kernel: [ 199.900555] [<ffffffff81110728>] vfs_read+0xc8/0x1a0 Sep 17 14:17:01 myLap kernel: [ 199.900558] [<ffffffff811108f0>] sys_read+0x50/0x90 Sep 17 14:17:01 myLap kernel: [ 199.900563] [<ffffffff81012002>] system_call_fastpath+0x16/0x1b Sep 17 14:17:01 myLap kernel: [ 199.900695] BUG: scheduling while atomic: xjadeo/0x0000020b/5117, CPU#3 Sep 17 14:17:01 myLap kernel: [ 199.900698] Modules linked in: snd_usb_audio snd_usb_lib snd_hwdep cbc cryptd aes_x86_64 aes_generic ppdev bridge stp bnep capifs binfmt_misc coretemp lp parport xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ipt_REJECT snd_hda_codec_nvhdmi xt_limit snd_hda_codec_realtek ipt_LOG joydev snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss arc4 ecb nf_conntrack_ftp snd_pcm nf_conntrack iptable_filter snd_seq_dummy ip_tables iwlagn snd_seq_oss x_tables iwlcore snd_seq_midi snd_rawmidi snd_seq_midi_event uvcvideo snd_seq snd_timer snd_seq_device acer_wmi mac80211 videodev snd psmouse v4l1_compat iTCO_wdt soundcore v4l2_compat_ioctl32 serio_raw cfg80211 led_class iTCO_vendor_support snd_page_alloc pcspkr video nvidia(P) output usbhid tg3 Sep 17 14:17:01 myLap kernel: [ 199.900750] Pid: 5117, comm: xjadeo Tainted: P 2.6.31-rt10-rev01 #1 Sep 17 14:17:01 myLap kernel: [ 199.900752] Call Trace: Sep 17 14:17:01 myLap kernel: [ 199.900756] [<ffffffff8104ecaa>] __schedule_bug+0x6a/0x80 Sep 17 14:17:01 myLap kernel: [ 199.900760] [<ffffffff81510d10>] thread_return+0x1ae/0x78e Sep 17 14:17:01 myLap kernel: [ 199.900764] [<ffffffff81015f07>] ? show_trace_log_lvl+0x57/0x70 Sep 17 14:17:01 myLap kernel: [ 199.900769] [<ffffffff81010505>] ? __switch_to+0x2a5/0x320 Sep 17 14:17:01 myLap kernel: [ 199.900772] [<ffffffff815114c4>] schedule+0x14/0x30 Sep 17 14:17:01 myLap kernel: [ 199.900776] [<ffffffff81511517>] io_schedule+0x37/0x50 Sep 17 14:17:01 myLap /USR/SBIN/CRON[5139]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Sep 17 14:17:01 myLap kernel: [ 199.900780] [<ffffffff810d5e2d>] sync_page+0x3d/0x70 Sep 17 14:17:01 myLap kernel: [ 199.900784] [<ffffffff810d5e69>] sync_page_killable+0x9/0x50 Sep 17 14:17:01 myLap kernel: [ 199.900787] [<ffffffff81511972>] __wait_on_bit_lock+0x52/0xb0 Sep 17 14:17:01 myLap kernel: [ 199.900791] [<ffffffff810d5e60>] ? sync_page_killable+0x0/0x50 Sep 17 14:17:01 myLap kernel: [ 199.900795] [<ffffffff810d5d64>] __lock_page_killable+0x64/0x70 Sep 17 14:17:01 myLap kernel: [ 199.900799] [<ffffffff81075c80>] ? wake_bit_function+0x0/0x40 Sep 17 14:17:01 myLap kernel: [ 199.900804] [<ffffffff810d7625>] generic_file_aio_read+0x3b5/0x690 Sep 17 14:17:01 myLap kernel: [ 199.900808] [<ffffffff8110ff21>] do_sync_read+0xf1/0x140 Sep 17 14:17:01 myLap kernel: [ 199.900812] [<ffffffff81075c40>] ? autoremove_wake_function+0x0/0x40 Sep 17 14:17:01 myLap kernel: [ 199.900816] [<ffffffff810dc2d9>] ? __alloc_pages_nodemask+0x109/0x660 Sep 17 14:17:01 myLap kernel: [ 199.900821] [<ffffffffa0d36710>] ? aes_decrypt+0x0/0x10 [aes_x86_64] Sep 17 14:17:01 myLap kernel: [ 199.900826] [<ffffffff81213a31>] ? security_file_permission+0x11/0x20 Sep 17 14:17:01 myLap kernel: [ 199.900829] [<ffffffff81110728>] vfs_read+0xc8/0x1a0 Sep 17 14:17:01 myLap kernel: [ 199.900833] [<ffffffff811ee71f>] ecryptfs_read_lower+0x6f/0xd0 Sep 17 14:17:01 myLap kernel: [ 199.900837] [<ffffffff811f0c6c>] ecryptfs_decrypt_page+0x16c/0x4d0 Sep 17 14:17:01 myLap kernel: [ 199.900841] [<ffffffff8110cf2b>] ? mem_cgroup_cache_charge+0x10b/0x140 Sep 17 14:17:01 myLap kernel: [ 199.900845] [<ffffffff810e002b>] ? __lru_cache_add+0xcb/0xf0 Sep 17 14:17:01 myLap kernel: [ 199.900849] [<ffffffff811ee0c8>] ecryptfs_readpage+0xd8/0x160 Sep 17 14:17:01 myLap kernel: [ 199.900852] [<ffffffff810df052>] __do_page_cache_readahead+0x1b2/0x240 Sep 17 14:17:01 myLap kernel: [ 199.900856] [<ffffffff81267457>] ? vsnprintf+0x217/0x5f0 Sep 17 14:17:01 myLap kernel: [ 199.900860] [<ffffffff810df0fc>] ra_submit+0x1c/0x20 Sep 17 14:17:01 myLap kernel: [ 199.900863] [<ffffffff810df32b>] ondemand_readahead+0x12b/0x260 Sep 17 14:17:01 myLap kernel: [ 199.900867] [<ffffffff810df4f9>] page_cache_async_readahead+0x99/0xb0 Sep 17 14:17:01 myLap kernel: [ 199.900872] [<ffffffff810d75e7>] generic_file_aio_read+0x377/0x690 Sep 17 14:17:01 myLap kernel: [ 199.900876] [<ffffffff8108e303>] ? is_module_text_address+0x53/0x60 Sep 17 14:17:01 myLap kernel: [ 199..902328] [<ffffffff8104ed2d>] ? finish_task_switch+0x6d/0x130 Sep 17 14:17:01 myLap kernel: [ 199.902332] [<ffffffff8104ecaa>] __schedule_bug+0x6a/0x80 Sep 17 14:17:01 myLap kernel: [ 199.902336] [<ffffffff81510d10>] thread_return+0x1ae/0x78e Sep 17 14:17:01 myLap kernel: [ 199.902340] [<ffffffff81010505>] ? __switch_to+0x2a5/0x320 Sep 17 14:17:01 myLap kernel: [ 199.902344] [<ffffffff815114c4>] schedule+0x14/0x30 Sep 17 14:17:01 myLap kernel: [ 199.902347] [<ffffffff81511517>] io_schedule+0x37/0x50 Sep 17 14:17:01 myLap kernel: [ 199.902351] [<ffffffff810d5e2d>] sync_page+0x3d/0x70 Sep 17 14:17:01 myLap kernel: [ 199.902355] [<ffffffff810d5e69>] sync_page_killable+0x9/0x50 Sep 17 14:17:01 myLap kernel: [ 199.902359] [<ffffffff81511972>] __wait_on_bit_lock+0x52/0xb0 Sep 17 14:17:01 myLap kernel: [ 199.902363] [<ffffffff810d5e60>] ? sync_page_killable+0x0/0x50 Sep 17 14:17:01 myLap kernel: [ 199.902367] [<ffffffff810d5d64>] __lock_page_killable+0x64/0x70 Sep 17 14:17:01 myLap kernel: [ 199.902371] [<ffffffff81075c80>] ? wake_bit_function+0x0/0x40 Sep 17 14:17:01 myLap kernel: [ 199.902375] [<ffffffff810d7625>] generic_file_aio_read+0x3b5/0x690 Sep 17 14:17:01 myLap kernel: [ 199.902380] [<ffffffff8110ff21>] do_sync_read+0xf1/0x140 Sep 17 14:17:01 myLap kernel: [ 199.902384] [<ffffffff81075c40>] ? autoremove_wake_function+0x0/0x40 Sep 17 14:17:01 myLap kernel: [ 199.902388] [<ffffffff810dc2d9>] ? __alloc_pages_nodemask+0x109/0x660 Sep 17 14:17:01 myLap kernel: [ 199.902393] [<ffffffffa0d36710>] ? aes_decrypt+0x0/0x10 [aes_x86_64] Sep 17 14:17:01 myLap kernel: [ 199.902397] [<ffffffff81213a31>] ? security_file_permission+0x11/0x20 Sep 17 14:17:01 myLap kernel: [ 199.902401] [<ffffffff81110728>] vfs_read+0xc8/0x1a0 Sep 17 14:17:01 myLap kernel: [ 199.902405] [<ffffffff811ee71f>] ecryptfs_read_lower+0x6f/0xd0 Sep 17 14:17:01 myLap kernel: [ 199.902409] [<ffffffff811f0c6c>] ecryptfs_decrypt_page+0x16c/0x4d0 Sep 17 14:17:01 myLap kernel: [ 199.902413] [<ffffffff8110cf2b>] ? mem_cgroup_cache_charge+0x10b/0x140 Sep 17 14:17:01 myLap kernel: [ 199.902417] [<ffffffff810e002b>] ? __lru_cache_add+0xcb/0xf0 Sep 17 14:17:01 myLap kernel: [ 199.902420] [<ffffffff811ee0c8>] ecryptfs_readpage+0xd8/0x160 Sep 17 14:17:01 myLap kernel: [ 199.902424] [<ffffffff810df052>] __do_page_cache_readahead+0x1b2/0x240 Sep 17 14:17:01 myLap kernel: [ 199.902428] [<ffffffff81267457>] ? vsnprintf+0x217/0x5f0 Sep 17 14:17:01 myLap kernel: [ 199.902432] [<ffffffff810df0fc>] ra_submit+0x1c/0x20 Sep 17 14:17:01 myLap kernel: [ 199.902435] [<ffffffff810df32b>] ondemand_readahead+0x12b/0x260 Sep 17 14:17:01 myLap kernel: [ 199.902439] [<ffffffff810df4f9>] page_cache_async_readahead+0x99/0xb0 Sep 17 14:17:01 myLap kernel: [ 199.902444] [<ffffffff810d75e7>] generic_file_aio_read+0x377/0x690 Sep 17 14:17:01 myLap kernel: [ 199.902448] [<ffffffff8108e303>] ? is_module_text_address+0x53/0x60 Sep 17 14:17:01 myLap kernel: [ 199.902452] [<ffffffff811ea8a0>] ecryptfs_read_update_atime+0x20/0x70 Sep 17 14:17:01 myLap kernel: [ 199.902456] [<ffffffff8110ff21>] do_sync_read+0xf1/0x140 Sep 17 14:17:01 myLap kernel: [ 199.902460] [<ffffffff81075c40>] ? autoremove_wake_function+0x0/0x40 Sep 17 14:17:01 myLap kernel: [ 199.902464] [<ffffffff8107fb96>] ? ktime_get_ts+0xb6/0xe0 Sep 17 14:17:01 myLap kernel: [ 199.902468] [<ffffffff81120a47>] ? poll_select_copy_remaining+0xf7/0x150 Sep 17 14:17:01 myLap kernel: [ 199.902473] [<ffffffff81213a31>] ? security_file_permission+0x11/0x20 Sep 17 14:17:01 myLap kernel: [ 199.902476] [<ffffffff81110728>] vfs_read+0xc8/0x1a0 Sep 17 14:17:01 myLap kernel: [ 199.902480] [<ffffffff811108f0>] sys_read+0x50/0x90 Sep 17 14:17:01 myLap kernel: [ 199.902484] [<ffffffff81012002>] system_call_fastpath+0x16/0x1b --snap-- -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
