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What does dmesg report when you do this? Probably, there was some error when you tried to write to the disc. Also, what does /dev/cdrecorder point to?
Here are the messages: Jun 28 14:20:16 gryffindor kernel: pktcdvd: unsupported module, tainting kernel. Jun 28 14:20:17 gryffindor kernel: pktcdvd: v0.1.3b 2004-04-13 Jens Axboe (axboe@suse.de) and petero2@telia.com Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5442]: try 1 while waiting for /block/pktcdvd2's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5464]: try 1 while waiting for /block/pktcdvd4's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5483]: try 1 while waiting for /block/pktcdvd6's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5416]: try 1 while waiting for /block/pktcdvd0's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5475]: try 1 while waiting for /block/pktcdvd5's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5430]: try 1 while waiting for /block/pktcdvd1's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5453]: try 1 while waiting for /block/pktcdvd3's bus_id Jun 28 14:20:17 gryffindor /etc/hotplug/block.agent[5497]: try 1 while waiting for /block/pktcdvd7's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5416]: try 2 while waiting for /block/pktcdvd0's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5442]: try 2 while waiting for /block/pktcdvd2's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5464]: try 2 while waiting for /block/pktcdvd4's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5483]: try 2 while waiting for /block/pktcdvd6's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5497]: try 2 while waiting for /block/pktcdvd7's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5475]: try 2 while waiting for /block/pktcdvd5's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5430]: try 2 while waiting for /block/pktcdvd1's bus_id Jun 28 14:20:18 gryffindor /etc/hotplug/block.agent[5453]: try 2 while waiting for /block/pktcdvd3's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5416]: try 3 while waiting for /block/pktcdvd0's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5442]: try 3 while waiting for /block/pktcdvd2's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5464]: try 3 while waiting for /block/pktcdvd4's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5475]: try 3 while waiting for /block/pktcdvd5's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5430]: try 3 while waiting for /block/pktcdvd1's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5483]: try 3 while waiting for /block/pktcdvd6's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5453]: try 3 while waiting for /block/pktcdvd3's bus_id Jun 28 14:20:19 gryffindor /etc/hotplug/block.agent[5497]: try 3 while waiting for /block/pktcdvd7's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5442]: try 4 while waiting for /block/pktcdvd2's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5464]: try 4 while waiting for /block/pktcdvd4's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5430]: try 4 while waiting for /block/pktcdvd1's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5416]: try 4 while waiting for /block/pktcdvd0's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5453]: try 4 while waiting for /block/pktcdvd3's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5483]: try 4 while waiting for /block/pktcdvd6's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5475]: try 4 while waiting for /block/pktcdvd5's bus_id Jun 28 14:20:20 gryffindor /etc/hotplug/block.agent[5497]: try 4 while waiting for /block/pktcdvd7's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5442]: try 5 while waiting for /block/pktcdvd2's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5464]: try 5 while waiting for /block/pktcdvd4's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5430]: try 5 while waiting for /block/pktcdvd1's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5416]: try 5 while waiting for /block/pktcdvd0's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5453]: try 5 while waiting for /block/pktcdvd3's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5483]: try 5 while waiting for /block/pktcdvd6's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5497]: try 5 while waiting for /block/pktcdvd7's bus_id Jun 28 14:20:21 gryffindor /etc/hotplug/block.agent[5475]: try 5 while waiting for /block/pktcdvd5's bus_id Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5475]: new block device /block/pktcdvd5 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5442]: new block device /block/pktcdvd2 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5464]: new block device /block/pktcdvd4 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5430]: new block device /block/pktcdvd1 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5453]: new block device /block/pktcdvd3 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5416]: new block device /block/pktcdvd0 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5483]: new block device /block/pktcdvd6 Jun 28 14:20:22 gryffindor /etc/hotplug/block.agent[5497]: new block device /block/pktcdvd7 Jun 28 14:20:37 gryffindor sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/usr/local/bin/pktsetup /dev/pktcdvd0 /dev/cdrecorder Jun 28 14:20:37 gryffindor kernel: cdrom: This disc doesn't have any tracks I recognize! Jun 28 14:20:37 gryffindor kernel: pktcdvd: writer 0 mapped to hdc Jun 28 14:21:44 gryffindor sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/bin/mount -t udf -o rw,noauto,procuid,nosuid,user,exec /dev/pktcdvd0 /media/cdrecorder Jun 28 14:21:44 gryffindor kernel: udf: registering filesystem Jun 28 14:21:44 gryffindor kernel: pktcdvd: inserted media is CD-RW Jun 28 14:21:44 gryffindor kernel: pktcdvd: Fixed packets, 32 blocks, Mode-2 disc Jun 28 14:21:44 gryffindor kernel: pktcdvd: Max. media speed: 2 Jun 28 14:21:44 gryffindor kernel: pktcdvd: write speed 2 Jun 28 14:21:44 gryffindor kernel: pktcdvd: 54 01 00 00 00 00 00 00 00 00 00 00 - sense 00.00.00 (No sense) Jun 28 14:21:44 gryffindor kernel: pktcdvd: pktcdvd0 Optimum Power Calibration failed Jun 28 14:21:44 gryffindor kernel: pktcdvd: 510718kB available on disc Jun 28 14:21:44 gryffindor kernel: udf: bad mount option "procuid" or missing value Jun 28 14:21:57 gryffindor /usr/bin/sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/bin/umount /media/cdrecorder Jun 28 14:21:59 gryffindor /usr/bin/sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/usr/bin/pktsetup -d /dev/pktcdvd0 Jun 28 14:21:59 gryffindor kernel: pktcdvd: writer 0 unmapped Jun 28 14:22:01 gryffindor /usr/bin/sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/usr/bin/cdrwtool -d /dev/cdrecorder -q Jun 28 14:22:14 gryffindor /usr/bin/sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/usr/bin/pktsetup /dev/pktcdvd0 /dev/cdrecorder Jun 28 14:22:14 gryffindor kernel: pktcdvd: writer 0 mapped to hdc Jun 28 14:22:14 gryffindor /usr/bin/sudo: markea : TTY=pts/1 ; PWD=/home/markea ; USER=root ; COMMAND=/bin/mount -t udf -o rw,noatime /dev/pktcdvd0 /media/cdrecorder Jun 28 14:22:14 gryffindor kernel: pktcdvd: inserted media is CD-RW Jun 28 14:22:14 gryffindor kernel: pktcdvd: Fixed packets, 32 blocks, Mode-2 disc Jun 28 14:22:14 gryffindor kernel: pktcdvd: Max. media speed: 2 Jun 28 14:22:15 gryffindor kernel: pktcdvd: write speed 2 Jun 28 14:22:15 gryffindor kernel: pktcdvd: 54 01 00 00 00 00 00 00 00 00 00 00 - sense 00.00.00 (No sense) Jun 28 14:22:15 gryffindor kernel: pktcdvd: pktcdvd0 Optimum Power Calibration failed Jun 28 14:22:15 gryffindor kernel: pktcdvd: 510718kB available on disc Jun 28 14:22:16 gryffindor kernel: UDF-fs INFO UDF 0.9.8.1 (2004/29/09) Mounting volume 'ARCHIVE_1', timestamp 2000/10/22 23:52 (1e5c) Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1408 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1416 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1424 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1432 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1440 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1448 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1456 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1464 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1472 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1480 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1488 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1496 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1504 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1512 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1520 Jun 28 14:22:51 gryffindor kernel: end_request: I/O error, dev hdc, sector 1528 Jun 28 14:22:51 gryffindor kernel: Buffer I/O error on device pktcdvd0, logical block 352 Jun 28 14:22:51 gryffindor kernel: lost page write due to I/O error on pktcdvd0 Jun 28 15:28:03 gryffindor kernel: buffer layer error at fs/buffer.c:1342 Jun 28 15:28:03 gryffindor kernel: Call Trace: Jun 28 15:28:03 gryffindor kernel: [mark_buffer_dirty+47/64] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:03 gryffindor kernel: [<c015a7bf>] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2178662/2966925] udf_bitmap_new_block+0x71f/0x750 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a5979f>] udf_bitmap_new_block+0x71f/0x750 [udf] Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2179706/2966925] udf_new_block+0x63/0xa0 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a59bb3>] udf_new_block+0x63/0xa0 [udf] Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2186984/2966925] udf_new_inode+0x61/0x420 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a5b821>] udf_new_inode+0x61/0x420 [udf] Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2218096/2966925] udf_create+0x19/0x170 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a631a9>] udf_create+0x19/0x170 [udf] Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2208821/2966925] udf_lookup+0x9e/0xb0 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a60d6e>] udf_lookup+0x9e/0xb0 [udf] Jun 28 15:28:03 gryffindor kernel: [__d_lookup+239/272] __d_lookup+0xef/0x110 Jun 28 15:28:03 gryffindor kernel: [<c016ebdf>] __d_lookup+0xef/0x110 Jun 28 15:28:03 gryffindor kernel: [in_group_p+48/112] in_group_p+0x30/0x70 Jun 28 15:28:03 gryffindor kernel: [<c012a420>] in_group_p+0x30/0x70 Jun 28 15:28:03 gryffindor kernel: [vfs_permission+222/272] vfs_permission+0xde/0x110 Jun 28 15:28:03 gryffindor kernel: [<c0164c8e>] vfs_permission+0xde/0x110 Jun 28 15:28:03 gryffindor kernel: [vfs_create+153/304] vfs_create+0x99/0x130 Jun 28 15:28:03 gryffindor kernel: [<c01652e9>] vfs_create+0x99/0x130 Jun 28 15:28:03 gryffindor kernel: [open_namei+830/1072] open_namei+0x33e/0x430 Jun 28 15:28:03 gryffindor kernel: [<c016731e>] open_namei+0x33e/0x430 Jun 28 15:28:03 gryffindor kernel: [filp_open+78/128] filp_open+0x4e/0x80 Jun 28 15:28:03 gryffindor kernel: [<c015574e>] filp_open+0x4e/0x80 Jun 28 15:28:03 gryffindor kernel: [sys_open+131/208] sys_open+0x83/0xd0 Jun 28 15:28:03 gryffindor kernel: [<c0155803>] sys_open+0x83/0xd0 Jun 28 15:28:03 gryffindor kernel: [syscall_call+7/11] syscall_call+0x7/0xb Jun 28 15:28:03 gryffindor kernel: [<c0107e27>] syscall_call+0x7/0xb Jun 28 15:28:03 gryffindor kernel: Jun 28 15:28:03 gryffindor kernel: buffer layer error at fs/buffer.c:1342 Jun 28 15:28:03 gryffindor kernel: Call Trace: Jun 28 15:28:03 gryffindor kernel: [mark_buffer_dirty+47/64] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:03 gryffindor kernel: [<c015a7bf>] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2187223/2966925] udf_new_inode+0x150/0x420 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a5b910>] udf_new_inode+0x150/0x420 [udf] Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2218096/2966925] udf_create+0x19/0x170 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a631a9>] udf_create+0x19/0x170 [udf] Jun 28 15:28:03 gryffindor kernel: [__crc_inode_change_ok+2208821/2966925] udf_lookup+0x9e/0xb0 [udf] Jun 28 15:28:03 gryffindor kernel: [<e2a60d6e>] udf_lookup+0x9e/0xb0 [udf] Jun 28 15:28:03 gryffindor kernel: [__d_lookup+239/272] __d_lookup+0xef/0x110 Jun 28 15:28:03 gryffindor kernel: [<c016ebdf>] __d_lookup+0xef/0x110 Jun 28 15:28:03 gryffindor kernel: [in_group_p+48/112] in_group_p+0x30/0x70 Jun 28 15:28:03 gryffindor kernel: [<c012a420>] in_group_p+0x30/0x70 Jun 28 15:28:03 gryffindor kernel: [vfs_permission+222/272] vfs_permission+0xde/0x110 Jun 28 15:28:03 gryffindor kernel: [<c0164c8e>] vfs_permission+0xde/0x110 Jun 28 15:28:03 gryffindor kernel: [vfs_create+153/304] vfs_create+0x99/0x130 Jun 28 15:28:03 gryffindor kernel: [<c01652e9>] vfs_create+0x99/0x130 Jun 28 15:28:03 gryffindor kernel: [open_namei+830/1072] open_namei+0x33e/0x430 Jun 28 15:28:03 gryffindor kernel: [<c016731e>] open_namei+0x33e/0x430 Jun 28 15:28:03 gryffindor kernel: [filp_open+78/128] filp_open+0x4e/0x80 Jun 28 15:28:03 gryffindor kernel: [<c015574e>] filp_open+0x4e/0x80 Jun 28 15:28:03 gryffindor kernel: [sys_open+131/208] sys_open+0x83/0xd0 Jun 28 15:28:03 gryffindor kernel: [<c0155803>] sys_open+0x83/0xd0 Jun 28 15:28:03 gryffindor kernel: [syscall_call+7/11] syscall_call+0x7/0xb Jun 28 15:28:03 gryffindor kernel: [<c0107e27>] syscall_call+0x7/0xb Jun 28 15:28:03 gryffindor kernel: Jun 28 15:28:05 gryffindor kernel: buffer layer error at fs/buffer.c:1342 Jun 28 15:28:05 gryffindor kernel: Call Trace: Jun 28 15:28:05 gryffindor kernel: [mark_buffer_dirty+47/64] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:05 gryffindor kernel: [<c015a7bf>] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:05 gryffindor kernel: [__crc_inode_change_ok+2227170/2966925] udf_open_lvid+0xcb/0x150 [udf] Jun 28 15:28:05 gryffindor kernel: [<e2a6551b>] udf_open_lvid+0xcb/0x150 [udf] Jun 28 15:28:05 gryffindor kernel: [__crc_inode_change_ok+2227324/2966925] udf_write_super+0x15/0x20 [udf] Jun 28 15:28:05 gryffindor kernel: [<e2a655b5>] udf_write_super+0x15/0x20 [udf] Jun 28 15:28:05 gryffindor kernel: [sync_supers+137/144] sync_supers+0x89/0x90 Jun 28 15:28:05 gryffindor kernel: [<c015e369>] sync_supers+0x89/0x90 Jun 28 15:28:05 gryffindor kernel: [wb_kupdate+39/304] wb_kupdate+0x27/0x130 Jun 28 15:28:05 gryffindor kernel: [<c01401b7>] wb_kupdate+0x27/0x130 Jun 28 15:28:05 gryffindor kernel: [schedule+502/1744] schedule+0x1f6/0x6d0 Jun 28 15:28:05 gryffindor kernel: [<c011c696>] schedule+0x1f6/0x6d0 Jun 28 15:28:05 gryffindor kernel: [pdflush+177/400] pdflush+0xb1/0x190 Jun 28 15:28:05 gryffindor kernel: [<c01405c1>] pdflush+0xb1/0x190 Jun 28 15:28:05 gryffindor kernel: [wb_kupdate+0/304] wb_kupdate+0x0/0x130 Jun 28 15:28:05 gryffindor kernel: [<c0140190>] wb_kupdate+0x0/0x130 Jun 28 15:28:05 gryffindor kernel: [kthread+169/209] kthread+0xa9/0xd1 Jun 28 15:28:05 gryffindor kernel: [<c012f3d9>] kthread+0xa9/0xd1 Jun 28 15:28:05 gryffindor kernel: [kthread+0/209] kthread+0x0/0xd1 Jun 28 15:28:05 gryffindor kernel: [<c012f330>] kthread+0x0/0xd1 Jun 28 15:28:05 gryffindor kernel: [kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10 Jun 28 15:28:05 gryffindor kernel: [<c0106005>] kernel_thread_helper+0x5/0x10 Jun 28 15:28:05 gryffindor kernel: Jun 28 15:28:07 gryffindor kernel: buffer layer error at fs/buffer.c:1342 Jun 28 15:28:07 gryffindor kernel: Call Trace: Jun 28 15:28:07 gryffindor kernel: [mark_buffer_dirty+47/64] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:07 gryffindor kernel: [<c015a7bf>] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:07 gryffindor kernel: [__crc_inode_change_ok+2178662/2966925] udf_bitmap_new_block+0x71f/0x750 [udf] Jun 28 15:28:07 gryffindor kernel: [<e2a5979f>] udf_bitmap_new_block+0x71f/0x750 [udf] Jun 28 15:28:07 gryffindor kernel: [__kfree_skb+159/304] __kfree_skb+0x9f/0x130 Jun 28 15:28:07 gryffindor kernel: [<c02789df>] __kfree_skb+0x9f/0x130 Jun 28 15:28:07 gryffindor kernel: [__crc_inode_change_ok+2179706/2966925] udf_new_block+0x63/0xa0 [udf] Jun 28 15:28:07 gryffindor kernel: [<e2a59bb3>] udf_new_block+0x63/0xa0 [udf] Jun 28 15:28:07 gryffindor kernel: [__crc_inode_change_ok+2186984/2966925] udf_new_inode+0x61/0x420 [udf] Jun 28 15:28:07 gryffindor kernel: [<e2a5b821>] udf_new_inode+0x61/0x420 [udf] Jun 28 15:28:07 gryffindor kernel: [__crc_inode_change_ok+2218096/2966925] udf_create+0x19/0x170 [udf] Jun 28 15:28:07 gryffindor kernel: [<e2a631a9>] udf_create+0x19/0x170 [udf] Jun 28 15:28:07 gryffindor kernel: [__d_lookup+239/272] __d_lookup+0xef/0x110 Jun 28 15:28:07 gryffindor kernel: [<c016ebdf>] __d_lookup+0xef/0x110 Jun 28 15:28:07 gryffindor kernel: [in_group_p+48/112] in_group_p+0x30/0x70 Jun 28 15:28:07 gryffindor kernel: [<c012a420>] in_group_p+0x30/0x70 Jun 28 15:28:07 gryffindor kernel: [vfs_permission+222/272] vfs_permission+0xde/0x110 Jun 28 15:28:07 gryffindor kernel: [<c0164c8e>] vfs_permission+0xde/0x110 Jun 28 15:28:07 gryffindor kernel: [vfs_create+153/304] vfs_create+0x99/0x130 Jun 28 15:28:07 gryffindor kernel: [<c01652e9>] vfs_create+0x99/0x130 Jun 28 15:28:07 gryffindor kernel: [open_namei+830/1072] open_namei+0x33e/0x430 Jun 28 15:28:07 gryffindor kernel: [<c016731e>] open_namei+0x33e/0x430 Jun 28 15:28:07 gryffindor kernel: [filp_open+78/128] filp_open+0x4e/0x80 Jun 28 15:28:07 gryffindor kernel: [<c015574e>] filp_open+0x4e/0x80 Jun 28 15:28:07 gryffindor kernel: [sys_open+131/208] sys_open+0x83/0xd0 Jun 28 15:28:07 gryffindor kernel: [<c0155803>] sys_open+0x83/0xd0 Jun 28 15:28:07 gryffindor kernel: [syscall_call+7/11] syscall_call+0x7/0xb Jun 28 15:28:07 gryffindor kernel: [<c0107e27>] syscall_call+0x7/0xb Jun 28 15:28:07 gryffindor kernel: Jun 28 15:28:07 gryffindor kernel: buffer layer error at fs/buffer.c:1342 Jun 28 15:28:07 gryffindor kernel: Call Trace: Jun 28 15:28:07 gryffindor kernel: [mark_buffer_dirty+47/64] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:07 gryffindor kernel: [<c015a7bf>] mark_buffer_dirty+0x2f/0x40 Jun 28 15:28:07 gryffindor kernel: [__crc_inode_change_ok+2187223/2966925] udf_new_inode+0x150/0x420 [udf] Jun 28 15:28:07 gryffindor kernel: [<e2a5b910>] udf_new_inode+0x150/0x420 [udf] Jun 28 15:28:07 gryffindor kernel: [__crc_inode_change_ok+2218096/2966925] udf_create+0x19/0x170 [udf] Jun 28 15:28:07 gryffindor kernel: [<e2a631a9>] udf_create+0x19/0x170 [udf] Jun 28 15:28:07 gryffindor kernel: [__d_lookup+239/272] __d_lookup+0xef/0x110 Jun 28 15:28:07 gryffindor kernel: [<c016ebdf>] __d_lookup+0xef/0x110 Jun 28 15:28:07 gryffindor kernel: [in_group_p+48/112] in_group_p+0x30/0x70 Jun 28 15:28:07 gryffindor kernel: [<c012a420>] in_group_p+0x30/0x70 Jun 28 15:28:07 gryffindor kernel: [vfs_permission+222/272] vfs_permission+0xde/0x110 Jun 28 15:28:07 gryffindor kernel: [<c0164c8e>] vfs_permission+0xde/0x110 Jun 28 15:28:07 gryffindor kernel: [vfs_create+153/304] vfs_create+0x99/0x130 Jun 28 15:28:07 gryffindor kernel: [<c01652e9>] vfs_create+0x99/0x130 Jun 28 15:28:07 gryffindor kernel: [open_namei+830/1072] open_namei+0x33e/0x430 Jun 28 15:28:07 gryffindor kernel: [<c016731e>] open_namei+0x33e/0x430 Jun 28 15:28:07 gryffindor kernel: [filp_open+78/128] filp_open+0x4e/0x80 Jun 28 15:28:07 gryffindor kernel: [<c015574e>] filp_open+0x4e/0x80 Jun 28 15:28:07 gryffindor kernel: [sys_open+131/208] sys_open+0x83/0xd0 Jun 28 15:28:07 gryffindor kernel: [<c0155803>] sys_open+0x83/0xd0 Jun 28 15:28:07 gryffindor kernel: [syscall_call+7/11] syscall_call+0x7/0xb Jun 28 15:28:07 gryffindor kernel: [<c0107e27>] syscall_call+0x7/0xb /dev/cdrecorder is a symlink to /dev/hdc, the CD-RW drive gryffindor:/home/markea 20> ll /dev/cdrecorder lrwxrwxrwx 1 root root 8 2004-06-29 09:45 /dev/cdrecorder -> /dev/hdc I am happy to provide any other information which may help. I started this because I also have a FireWire-based DVD-RW drive which I would like to use the same way, but since CD-RW discs are cheaper, I started with those. Mark Almeida
-- Peter Osterlund - petero2@telia.com http://w1.894.telia.com/~u89404340
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