Setting importance is a problem; only a restricted set of users may set it. I believe this bug may be effecting me as well. It seems to thrash the system for around 5 min, and then I'm left with a bazillion sleeping processes. 4635 root 20 0 845m 474m 39m R 8 23.9 0:41.44 Xorg 30934 user 20 0 24388 3368 568 S 4 0.2 0:03.67 dbus-daemon 30943 user 20 0 170m 6112 3872 S 4 0.3 0:02.64 xfce4-session 10 root 15 -5 0 0 0 S 3 0.0 32:47.59 events/1 1431 root 15 -5 0 0 0 R 2 0.0 0:25.96 kcryptd 320 root 15 -5 0 0 0 S 1 0.0 0:02.93 kswapd0 31061 user 20 0 166m 3640 2524 S 1 0.2 0:00.19 xfce4-settings- 30974 user 20 0 162m 6956 5472 D 1 0.3 0:01.12 xfwm4 32501 user 20 0 224m 12m 3788 S 1 0.6 0:00.59 python 31323 user 20 0 145m 5096 3908 S 1 0.3 0:00.39 xfce4-cpugraph- 457 user 20 0 0 0 0 Z 0 0.0 0:00.07 xfdesktop 459 user 20 0 0 0 0 Z 0 0.0 0:00.07 xfdesktop 476 user 20 0 168m 5172 3996 S 0 0.3 0:00.07 xfdesktop 486 user 20 0 168m 5172 3996 S 0 0.3 0:00.07 xfdesktop 424 user 20 0 168m 5172 3996 S 0 0.3 0:00.06 xfdesktop 430 user 20 0 0 0 0 Z 0 0.0 0:00.06 xfdesktop 437 user 20 0 0 0 0 Z 0 0.0 0:00.06 xfdesktop 448 user 20 0 168m 5176 3996 S 0 0.3 0:00.06 xfdesktop 461 user 20 0 0 0 0 Z 0 0.0 0:00.06 xfdesktop 489 user 20 0 168m 5172 3996 S 0 0.3 0:00.06 xfdesktop 496 user 20 0 168m 5172 3996 S 0 0.3 0:00.06 xfdesktop 509 user 20 0 168m 5172 3996 S 0 0.3 0:00.06 xfdesktop 423 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 425 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 431 user 20 0 168m 4944 3824 S 0 0.2 0:00.05 xfdesktop 440 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 441 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 442 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 445 user 20 0 168m 5172 3996 R 0 0.3 0:00.05 xfdesktop 447 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 449 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 450 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 456 user 20 0 168m 5176 3996 S 0 0.3 0:00.05 xfdesktop 458 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 470 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 471 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 474 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 477 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 478 user 20 0 168m 5172 3996 S 0 0.3 0:00.05 xfdesktop 480 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 482 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 484 user 20 0 168m 5176 3996 S 0 0.3 0:00.05 xfdesktop 487 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 492 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 494 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop 500 user 20 0 0 0 0 Z 0 0.0 0:00.05 xfdesktop