May i ask for some feedback on the below.
This bug seems to pop back up again and again, i've found traces dating back to 2004 ... this seems to trigger or correlate with a plethora of issues. Is this a regression of some sort ? On my system this bug >almost< exclusively occurs when i play a flash movie from any browser ( Iceweasel and Chromium tested ) Depending on boot-parameters there are gnome-shell slugdowns which require Xorg to be restarted or there is temporary slow-down which recovers after some time. Could be a few minutes. I'm doing some tests on my system so don't panic when looking at the current cmdline, the mtrr settings seem to influence the frequence of occurence for this type of event. BOOT_IMAGE=/boot/vmlinuz-3.2.0-4-amd64 root=/dev/mapper/m4300-root ro quiet nomodeset enable_mtrr_cleanup mtrr_spare_regnr=4 elevator=deadline mtrr_gran_size=1M mtrr_chunk_size=16M video.allow_duplicates=1 I'm somewhat concerned this message might be an indication for a kernel- level vulnerability but have little other indication but the flash- playback trigger, and a surge of iritation-triggered paranoia. It is also noticeable these messages are not-unique across systems and even distributions. When running from a vanilla self-compiled kernel these messages do not show but the same flash playback slugdown happens. https://bugzilla.redhat.com/show_bug.cgi?id=989025 [ 141.537195] CE: hpet increased min_delta_ns to 20113 nsec [ 141.538292] CE: hpet increased min_delta_ns to 30169 nsec [ 195.909019] CE: hpet increased min_delta_ns to 45253 nsec [ 195.909019] CE: hpet increased min_delta_ns to 67879 nsec My Debian Wheezy system shows Jan 12 13:30:26 localhost kernel: [ 2020.462393] CE: hpet increased min_delta_ns to 20113 nsec Jan 12 14:18:19 localhost kernel: [ 2705.462317] CE: hpet increased min_delta_ns to 20113 nsec Jan 12 14:18:24 localhost kernel: [ 2710.868851] CE: hpet increased min_delta_ns to 30169 nsec Jan 12 21:19:52 localhost kernel: [ 1393.767958] CE: hpet increased min_delta_ns to 20113 nsec Jan 12 23:10:09 localhost kernel: [ 2557.498114] CE: hpet increased min_delta_ns to 30169 nsec Jan 12 23:10:53 localhost kernel: [ 2602.091457] CE: hpet increased min_delta_ns to 45253 nsec Jan 13 00:58:04 localhost kernel: [ 5106.948096] CE: hpet increased min_delta_ns to 20113 nsec Jan 13 15:42:46 localhost kernel: [ 621.448579] CE: hpet increased min_delta_ns to 20113 nsec Jan 13 15:44:57 localhost kernel: [ 752.385203] CE: hpet increased min_delta_ns to 30169 nsec Jan 13 15:44:57 localhost kernel: [ 752.385441] CE: hpet increased min_delta_ns to 45253 nsec Jan 13 19:11:49 localhost kernel: [ 852.778250] CE: hpet increased min_delta_ns to 20113 nsec Jan 14 12:40:05 localhost kernel: [ 731.183563] CE: hpet increased min_delta_ns to 20113 nsec Jan 14 18:51:30 localhost kernel: [21951.280044] CE: hpet increased min_delta_ns to 20113 nsec Note the occurence for this bug does indicate but does not seem to trigger system slow-downs which seemed typical. A supposed work-around seems to be the boot parameter pci=nomsi , had it noted but not yet tested so far. -- jabadaba doooh ooh ooooh -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/pan.2014.01.15.15.53...@yahoo.com
