Debian // Call Trace

Последний Stable Debian. На борту: squid, postfix, dovecot, LAMP. Вот что выдаёт в логе. С Дебианом вожусь впервые и многое непонятно, но стараюсь вроде всё найти в нете. С этим маюсь уже неделю. Никак не пойму что это, критично ли это. Понимаю что что-то с сидюком, но он работает нормально. Что сие может означать?

Aug 13 22:11:36 gateway kernel: [17795.124760] Call Trace:
Aug 13 22:11:36 gateway kernel: [17795.124790] [<ffffffffa013f51d>] :ide_cd_mod:cdrom_do_newpc_cont+0x0/0x2b
Aug 13 22:11:36 gateway kernel: [17795.124799] [<ffffffff80428536>] schedule_timeout+0x1e/0xad
Aug 13 22:11:36 gateway kernel: [17795.124816] [<ffffffffa01012ee>] :ide_core:ide_do_request+0x8cd/0x930
Aug 13 22:11:36 gateway kernel: [17795.124825] [<ffffffffa013edf1>] :ide_cd_mod:cdrom_newpc_intr+0x0/0x5e1
Aug 13 22:11:36 gateway kernel: [17795.124840] [<ffffffffa0100a3d>] :ide_core:ide_do_request+0x1c/0x930
Aug 13 22:11:36 gateway kernel: [17795.124847] [<ffffffff80427b4b>] wait_for_common+0xcf/0x13a
Aug 13 22:11:36 gateway kernel: [17795.124852] [<ffffffff8022c257>] default_wake_function+0x0/0xe
Aug 13 22:11:36 gateway kernel: [17795.124870] [<ffffffffa0101433>] :ide_core:ide_do_drive_cmd+0xe2/0x109
Aug 13 22:11:36 gateway kernel: [17795.124882] [<ffffffffa013dd4c>] :ide_cd_mod:ide_cd_queue_pc+0x42/0xca
Aug 13 22:11:36 gateway kernel: [17795.124889] [<ffffffffa013dd4c>] :ide_cd_mod:ide_cd_queue_pc+0x42/0xca
Aug 13 22:11:36 gateway kernel: [17795.124895] [<ffffffff8030d2f1>] blk_rq_init+0x1c/0x85
Aug 13 22:11:36 gateway kernel: [17795.124905] [<ffffffffa013deb3>] :ide_cd_mod:cdrom_read_tocentry+0xb1/0xc3
Aug 13 22:11:36 gateway kernel: [17795.124927] [<ffffffff8030fcea>] blk_end_sync_rq+0x0/0x2e
Aug 13 22:11:36 gateway kernel: [17795.124938] [<ffffffffa013e19f>] :ide_cd_mod:ide_cd_read_toc+0x101/0x3c8
Aug 13 22:11:36 gateway kernel: [17795.124952] [<ffffffffa013ea61>] :ide_cd_mod:idecd_revalidate_disk+0x14/0x1b
Aug 13 22:11:36 gateway kernel: [17795.124959] [<ffffffff802be930>] __invalidate_device+0x3a/0x42
Aug 13 22:11:36 gateway kernel: [17795.124964] [<ffffffff802be987>] check_disk_change+0x4f/0x76
Aug 13 22:11:36 gateway kernel: [17795.124973] [<ffffffffa0136343>] :cdrom:cdrom_open+0x983/0xa14
Aug 13 22:11:36 gateway kernel: [17795.124980] [<ffffffff802aa874>] dput+0x1c/0xdd
Aug 13 22:11:36 gateway kernel: [17795.124984] [<ffffffff8031b148>] kobject_get+0x12/0x17
Aug 13 22:11:36 gateway kernel: [17795.124989] [<ffffffff80311f54>] get_disk+0x40/0x5b
Aug 13 22:11:36 gateway kernel: [17795.124994] [<ffffffff80311f7b>] exact_lock+0xc/0x14
Aug 13 22:11:36 gateway kernel: [17795.125003] [<ffffffffa013d454>] :ide_cd_mod:idecd_open+0x5b/0x89
Aug 13 22:11:36 gateway kernel: [17795.125007] [<ffffffff802bf48d>] blkdev_open+0x0/0x5d
Aug 13 22:11:36 gateway kernel: [17795.125012] [<ffffffff802bf0b4>] do_open+0xd1/0x2e8
Aug 13 22:11:36 gateway kernel: [17795.125019] [<ffffffff802bf48d>] blkdev_open+0x0/0x5d
Aug 13 22:11:36 gateway kernel: [17795.125023] [<ffffffff802bf4bb>] blkdev_open+0x2e/0x5d
Aug 13 22:11:36 gateway kernel: [17795.125029] [<ffffffff80299771>] __dentry_open+0x12c/0x238
Aug 13 22:11:36 gateway kernel: [17795.125037] [<ffffffff802a5551>] do_filp_open+0x3d7/0x7c4
Aug 13 22:11:36 gateway kernel: [17795.125045] [<ffffffffa0133505>] :cdrom:cdrom_release+0x1a7/0x1e4
Aug 13 22:11:36 gateway kernel: [17795.125055] [<ffffffff802ac635>] iput+0x27/0x60
Aug 13 22:11:36 gateway kernel: [17795.125062] [<ffffffff802994ac>] get_unused_fd_flags+0x71/0x115
Aug 13 22:11:36 gateway kernel: [17795.125070] [<ffffffff80299596>] do_sys_open+0x46/0xc3
Aug 13 22:11:36 gateway kernel: [17795.125076] [<ffffffff8020beca>] system_call_after_swapgs+0x8a/0x8f
Aug 13 22:11:36 gateway kernel: [17795.125085]
Aug 13 22:13:45 gateway kernel: [17923.972736] hald-addon-st D0000000000000000 0 3459 3431
Aug 13 22:13:45 gateway kernel: [17923.972742] ffff81002c105878 0000000000000082 0000000000000000 ffffffffa0117b00
Aug 13 22:13:45 gateway kernel: [17923.972747] ffff81002c0c94f0 ffffffff804f8480 ffff81002c0c9778 0000000037987400
Aug 13 22:13:45 gateway kernel: [17923.972752] ffffffffa0117b90 0000000000000000 00000000ffffffff 0000000000000000