On checking the logs on a customers server I found the following in the message log:
Sep 3 01:40:58 thurley kernel: at fs/fs-writeback.c:248
Sep 3 01:40:58 thurley kernel: [__writeback_single_inode+65/186] __writeback_single_inode+0x41/0xba
Sep 3 01:40:58 thurley kernel: [<c017a011>] __writeback_single_inode+0x41/0xba
Sep 3 01:40:58 thurley kernel: [write_inode_now_err+84/149] write_inode_now_err+0x54/0x95
Sep 3 01:40:58 thurley kernel: [<f8ac2aba>] udf_clear_inode+0x6c/0x82 [udf]
Sep 3 01:40:58 thurley kernel: [clear_inode+204/258] clear_inode+0xcc/0x102
Sep 3 01:40:58 thurley kernel: [<c0173594>] clear_inode+0xcc/0x102
Sep 3 01:40:58 thurley kernel: [dispose_list+71/109] dispose_list+0x47/0x6d
Sep 3 01:40:58 thurley kernel: [<c0173611>] dispose_list+0x47/0x6d
Sep 3 01:40:58 thurley kernel: [invalidate_inodes+160/185] invalidate_inodes+0xa0/0xb9
Sep 3 01:40:58 thurley kernel: [<c0173854>] invalidate_inodes+0xa0/0xb9
Sep 3 01:40:58 thurley kernel: [generic_shutdown_super+136/336] generic_shutdown_super+0x88/0x150
Sep 3 01:40:58 thurley kernel: [<c01620b2>] generic_shutdown_super+0x88/0x150
Sep 3 01:40:58 thurley kernel: [kill_block_super+12/27] kill_block_super+0xc/0x1b
Sep 3 01:40:58 thurley kernel: [<c0162ab4>] kill_block_super+0xc/0x1b
Sep 3 01:40:58 thurley kernel: [deactivate_super+91/112] deactivate_super+0x5b/0x70
Sep 3 01:40:58 thurley kernel: [<c0161f78>] deactivate_super+0x5b/0x70
Sep 3 01:40:58 thurley kernel: [sys_umount+101/108] sys_umount+0x65/0x6c
Sep 3 01:40:58 thurley kernel: [<c0176432>] sys_umount+0x65/0x6c
Sep 3 01:40:58 thurley kernel: [do_munmap+264/278] do_munmap+0x108/0x116
Sep 3 01:40:58 thurley kernel: [<c015244a>] do_munmap+0x108/0x116
Sep 3 01:40:58 thurley kernel: [do_page_fault+0/1478] do_page_fault+0x0/0x5c6
Sep 3 01:40:58 thurley kernel: [<c011ae91>] do_page_fault+0x0/0x5c6
Sep 3 01:40:58 thurley kernel: [error_code+47/56] error_code+0x2f/0x38
Sep 3 01:40:58 thurley kernel: [<c02e1527>] error_code+0x2f/0x38
Sep 3 01:40:58 thurley kernel: [syscall_call+7/11] syscall_call+0x7/0xb
Sep 3 01:40:58 thurley kernel: [<c02e0a2f>] syscall_call+0x7/0xb
Can anyone tell me what it means?
The server appears to working fine and the daily backups are completing with out error.
There are two minor problems with the server I know about:
1) I am no longer receiving the summary email from DAR. I have checked and reloaded the forwarding email address in the admin ID.
2) The software installer web page no longer indicates when updates are available. I have used Yum update from the command line which get around the problem.
I have done searches of the Forums for solutions without success.
Tony