disk sleep
After using this Acer 7739 for almost 3 hours with nary a problem I saw the update notification in the system tray and clicked on it.
Almost immediately my screen went black, but with a second or two it came back. No processes were stopped, nothing appeared to crash. I let the update continue to "check for updates", as I usually do to make sure I am going to bring down the whole load, and during the rest of the download time and the installation time my screen repeatedly when black and recovered. If I didn't move the mouse the recovery took more time, if I moved my mouse the recovery was instant with the movement of the mouse. Keeping the mouse moving didn't eliminate the blackouts.
As the downloading and installing was going on I opened the System Monitor and noticed the appearance of "disk sleep" next to about every process at various times. When it occurred on "xorg" the screen when blank.
After the update was done a notice to reboot was given. In stead of rebooting to KDE I ran the memory test for an hour. It passed fine. When the KDE desktop booted up I wen googling for "disk sleep". There are references to it, but not many. One of the refereed to HD inode problems. I opened KSystem Log and searched for "inode". There they were. Six listings:
Some corrupt iondes. That explained it. When any process accessed the HD and encountered the bad inodes the processes hung with "disk sleep". EXT4 saw the problems on reboot and cleaned them up.
Since rebooting the system has been running fine.
Almost immediately my screen went black, but with a second or two it came back. No processes were stopped, nothing appeared to crash. I let the update continue to "check for updates", as I usually do to make sure I am going to bring down the whole load, and during the rest of the download time and the installation time my screen repeatedly when black and recovered. If I didn't move the mouse the recovery took more time, if I moved my mouse the recovery was instant with the movement of the mouse. Keeping the mouse moving didn't eliminate the blackouts.
As the downloading and installing was going on I opened the System Monitor and noticed the appearance of "disk sleep" next to about every process at various times. When it occurred on "xorg" the screen when blank.
After the update was done a notice to reboot was given. In stead of rebooting to KDE I ran the memory test for an hour. It passed fine. When the KDE desktop booted up I wen googling for "disk sleep". There are references to it, but not many. One of the refereed to HD inode problems. I opened KSystem Log and searched for "inode". There they were. Six listings:
Code:
04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 0.002761] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes) 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.463208] EXT4-fs (sda5): ext4_orphan_cleanup: deleting unreferenced inode 2884124 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.463277] EXT4-fs (sda5): ext4_orphan_cleanup: deleting unreferenced inode 2884115 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.463304] EXT4-fs (sda5): ext4_orphan_cleanup: deleting unreferenced inode 2884192 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.463317] EXT4-fs (sda5): ext4_orphan_cleanup: deleting unreferenced inode 2884174 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.520944] EXT4-fs (sda5): ext4_orphan_cleanup: deleting unreferenced inode 2883847 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.521024] EXT4-fs (sda5): ext4_orphan_cleanup: deleting unreferenced inode 2884113 04/13/12 12:57:01 PM jerry-Aspire-7739 kernel [ 8.521036] EXT4-fs (sda5): 6 orphan inodes deleted
Since rebooting the system has been running fine.