I leave my computer on 24/7 so that my backups can run at night. Lately, it has been crashing during the night usually leaving no trace of what happened. Last night it crashed but left this in /var/log/messages: Aug 17 01:04:56 steve kernel: INFO: task kjournald:1960 blocked for more than 120 seconds. Aug 17 01:04:56 steve kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Aug 17 01:04:56 steve kernel: kjournald D 00002743 0 1960 2 0x00000080 Aug 17 01:04:56 steve kernel: cf98fd9c 00000046 ff2f442e 00002743 00032558 00000000 f15c756c cf82d400 Aug 17 01:04:56 steve kernel: c0a5e6ac c0a63140 f15c756c c0a63140 c0a63140 cf98fd74 c05b61ef f1714e18 Aug 17 01:04:56 steve kernel: 00000001 00000000 00002743 f15c72c0 b39690c0 1b48082c f6630a60 c2208140 Aug 17 01:04:56 steve kernel: Call Trace: Aug 17 01:04:56 steve kernel: [<c05b61ef>] ? cfq_may_queue+0x48/0xa8 Aug 17 01:04:56 steve kernel: [<c0793ef7>] io_schedule+0x5f/0x98 Aug 17 01:04:56 steve kernel: [<c05ac02f>] get_request_wait+0xc7/0x13c Aug 17 01:04:56 steve kernel: [<c0454641>] ? autoremove_wake_function+0x0/0x34 Aug 17 01:04:56 steve kernel: [<c05ac4a4>] __make_request+0x27f/0x386 Aug 17 01:04:56 steve kernel: [<c04cebd4>] ? __slab_alloc+0x269/0x3f6 Aug 17 01:04:56 steve kernel: [<c05ab011>] generic_make_request+0x286/0x2d0 Aug 17 01:04:56 steve kernel: [<c04a77e5>] ? mempool_alloc_slab+0x13/0x15 Aug 17 01:04:56 steve kernel: [<c04a78b1>] ? mempool_alloc+0x5c/0xf2 Aug 17 01:04:56 steve kernel: [<c05ab122>] submit_bio+0xc7/0xe0 Aug 17 01:04:56 steve kernel: [<c04fc9d3>] ? bio_alloc_bioset+0x2a/0xb9 Aug 17 01:04:56 steve kernel: [<c04f9038>] submit_bh+0xf4/0x114 Aug 17 01:04:56 steve kernel: [<c0562f74>] journal_commit_transaction+0x38b/0xcc7 Aug 17 01:04:56 steve kernel: [<c044747a>] ? lock_timer_base+0x26/0x45 Aug 17 01:04:56 steve kernel: [<c0447696>] ? try_to_del_timer_sync+0x5e/0x66 Aug 17 01:04:56 steve kernel: [<c0565f1d>] kjournald+0xb8/0x1cc Aug 17 01:04:56 steve kernel: [<c0454641>] ? autoremove_wake_function+0x0/0x34 Aug 17 01:04:56 steve kernel: [<c0565e65>] ? kjournald+0x0/0x1cc Aug 17 01:04:56 steve kernel: [<c0454409>] kthread+0x64/0x69 Aug 17 01:04:56 steve kernel: [<c04543a5>] ? kthread+0x0/0x69 Aug 17 01:04:56 steve kernel: [<c04041e7>] kernel_thread_helper+0x7/0x10 This happened in the middle of the backup which started at 1:00am and finished (successfully) at 1:28am so perhaps the backup blocked the kjournald process but it didn't crash the computer because there are later messages in the backup log and the messages file. The last entry in the messages file is: Aug 17 02:03:55 steve smartd[2347]: Device: /dev/sda [SAT], SMART Prefailure Attribute: 3 Spin_Up_Time changed from 167 to 168 Aug 17 02:03:55 steve smartd[2347]: Device: /dev/sda [SAT], SMART Usage Attribute: 194 Temperature_Celsius changed from 122 to 124 Could a hard drive get shut down because it was getting too hot? What would be a normal temp for a hard drive that has just completed a backup? 124C seems really hot. The HD cooling fan had been broken so I replaced it this past weekend but it doesn't seem to have helped. Too late? Permanent HD damage already done? Any other comments or suggestions? Thanks Steve -- Changing lives one card at a time http://www.send1cardnow.com -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines