Hello, I haven't been able to determine a pattern to these lockups. Mostly, they seem to happen when the machine is idle. I don't know if they were related to running xscreensaver. Maybe there was some connection to a 3D screensaver? I am running SELinux enforced. The most recent lockup seemed to come gradually. My mouse became more and more unresponsive, but "top" did not show any process hogging the CPU. I probably should have checked memory consumption, but I forgot. I don't recall the hard drive thrashing. Also, background processes continued running happily (the clock applet, the system monitor applet, etc). I did notice in one of the logs today, the following: Feb 16 20:52:08 hogwarts kernel: ACPI Exception (evregion-0409): AE_TIME, Returned by Handler for [EmbeddedControl] [20060127] Feb 16 20:52:08 hogwarts kernel: ACPI Exception (dswexec-0458): AE_TIME, While resolving operands for [AE_NOT_CONFIGURED] [20060127] Feb 16 20:52:08 hogwarts kernel: ACPI Error (psparse-0517): Method parse/execution failed [\_SB_.ACAD._PSR] (Node f7f00ae4), AE_TIME Feb 16 20:52:08 hogwarts kernel: ACPI Exception (evregion-0409): AE_TIME, Returned by Handler for [EmbeddedControl] [20060127] Feb 16 20:52:08 hogwarts kernel: ACPI Error (psparse-0517): Method parse/execution failed [\_SB_.BAT0._BST] (Node f7f00d4c), AE_TIME Feb 16 20:52:38 hogwarts kernel: ACPI Exception (evregion-0409): AE_TIME, Returned by Handler for [EmbeddedControl] [20060127] Feb 16 20:52:38 hogwarts kernel: ACPI Exception (dswexec-0458): AE_TIME, While resolving operands for [AE_NOT_CONFIGURED] [20060127] Feb 16 20:52:38 hogwarts kernel: ACPI Error (psparse-0517): Method parse/execution failed [\_SB_.ACAD._PSR] (Node f7f00ae4), AE_TIME Feb 16 20:52:38 hogwarts kernel: ACPI Exception (evregion-0409): AE_TIME, Returned by Handler for [EmbeddedControl] [20060127] Feb 16 20:52:38 hogwarts kernel: ACPI Error (psparse-0517): Method parse/execution failed [\_SB_.BAT0._BST] (Node f7f00d4c), AE_TIME -- fedora-test-list mailing list fedora-test-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-test-list