On a Ubuntu 12.04.1 amd64 desktop, after each wake up (system is suspended after 1 hour of inactivity) if i click on a document on my desktop (pdf, gedit, ...) nothing appear!
Process is launch but all is blocked. After some minutes, program unblock and the window with my document appear. I have some CIFS connection that are loaded at boot in fstab but the document that i try to open are in local disk. Is really not usable like that and had no problem with 10.04. If someone can help me to determine the cause.
I have that kind of error with different process on wakeup:
...
**Sep 18 13:20:52 dir1-desktop kernel: [ 8616.797049] INFO: task unity-files-dae:2483 blocked for more than 120 seconds.**
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.797052] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.797055] unity-files-dae D ffffffff81806200 0 2483 1 0x00000000
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.797061] ffff8800b7603808 0000000000000086 0000000000000000 0000000000000000
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.797068] ffff8800b7603fd8 ffff8800b7603fd8 ffff8800b7603fd8 00000000000137c0
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.797074] ffff880120f31700 ffff88011c664500 0000000000000001 ffff88011d0cc820
...
...
Sep 18 13:15:47 dir1-desktop kernel: [ 8312.636525] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:fb:00:26:b0:a8:35:cf:08:00 SRC=192.168.1.110 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=30465 PROTO=2
Sep 18 13:16:56 dir1-desktop kernel: [ 8381.765841] CIFS VFS: Unexpected lookup error -112
Sep 18 13:16:58 dir1-desktop kernel: [ 8383.429991] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:fb:00:26:b0:a8:35:cf:08:00 SRC=192.168.1.110 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=17703 PROTO=2
Sep 18 13:17:01 dir1-desktop CRON[4844]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Sep 18 13:17:02 dir1-desktop kernel: [ 8387.954987] [UFW BLOCK] IN=eth0 OUT= MAC=01:00:5e:00:00:fb:00:26:b0:a8:35:cf:08:00 SRC=192.168.1.110 DST=224.0.0.251 LEN=32 TOS=0x00 PREC=0x00 TTL=1 ID=60259 PROTO=2
**Sep 18 13:20:52 dir1-desktop kernel: [ 8616.796754] INFO: task zeitgeist-datah:2443 blocked for more than 120 seconds.**
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.796759] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.796763] zeitgeist-datah D ffffffff81806200 0 2443 2114 0x00000000
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.796771] ffff88010db17808 0000000000000082 0000000000000000 0000000000000000
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.796778] ffff88010db17fd8 ffff88010db17fd8 ffff88010db17fd8 00000000000137c0
Sep 18 13:20:52 dir1-desktop kernel: [ 8616.796785] ffff880120f49700 ffff8800c3625c00 ffff88010db177e8 ffff88011d0cc820
...
I opened a bug on launchpad, you can find there the syslog:
https://bugs.launchpad.net/ubuntu/+bug/1052446
