[Bug 1390354] Re: Ubuntu Server 14.04.1 as VirtualBox Guest disk performance drops with more than once CPU
I found the problem: The stock Ubuntu Server 14.04.1 amd64 iso image currently downloadable comes with a kernel which has the flag CONFIG_CONTEXT_TRACKING_FORCE=y . Recompiling the kernel without this flag set or upgrading to a kernel without the flag fixes the performance issues: Multiple CPU, stock 14.04.1 kernel (3.13.0-32): vagrant@ubuntu-14:~$ dd if=/dev/zero of=bigfile bs=1024 count=500 500+0 records in 500+0 records out 512000 bytes (5.1 GB) copied, 46.6511 s, 110 MB/s Multiple CPUs, recompiled kernel (3.13.0-39 ; but I tested this specific kernel with both flag enabled/disabled): vagrant@ubuntu-14:~$ dd if=/dev/zero of=bigfile bs=1024 count=500 500+0 records in 500+0 records out 512000 bytes (5.1 GB) copied, 10.4548 s, 490 MB/s It seems this specific flag has been brought up in another report ( https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349028 ) and is already fixed/soon to be released. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1390354 Title: Ubuntu Server 14.04.1 as VirtualBox Guest disk performance drops with more than once CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1390354/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 833952]
(In reply to Ron Wolf from comment #28) I've been using this dialog since , I guess, five or more years (feels to me like I've always used it, don't know). It brought me great awareness but also annoyance. I switched my mentality: don't accept cookies, unless required. By using https://addons.mozilla.org/en-US/firefox/addon/cookie-controller/ , I'm able place easy accessible buttons which allow me to a) enable it for session only or persistently and b) easily allows me removing site- specific or all session cookies. I don't operate on Dialogs with this add-on but only on the icons in my toolbar. YMMV. HTH -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/833952 Title: cookie dialogues can pile up out of order, but must still be clicked in order To manage notifications about this bug go to: https://bugs.launchpad.net/firefox/+bug/833952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 775916] Re: Cannot navigate with keyboard to application in dash
I am using unity-2d. Using the cursor keys I can only navigate *within* the text input area where I entered term, cursor down/up does not leave it and does actually nothing. Cursor left/right navigates only within the text input left and right. Pressing enter always will start the first listed application. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/775916 Title: Cannot navigate with keyboard to application in dash -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 519550] Re: Black screen after upgrade from 9.04
Booted into the system with recovery option, on the menu choose continue booting into the system. Started gdm as root user, logged in as my user, upgraded all packages, restarted system and booted the usual way - thing's are working again. ** Changed in: xorg (Ubuntu) Status: New = Invalid -- Black screen after upgrade from 9.04 https://bugs.launchpad.net/bugs/519550 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 519550] [NEW] Black screen after upgrade from 9.04
Public bug reported: Binary package hint: xorg After upgrading to 10.04 alpha 2 just an hour ago, the system is inaccessible for me. After the boot process finishes: - the sound at the beginning is played - black screen - unmovable cursor in the center (and was movable on the first boot but not in subsequent ones?) - blinking cursor (underscore) in the top left corner - whenever I press a key, funny characters are written on the screen; every key-press and release generates (different) characters on screen (alt, shift, tab, enter, a, b, c, etc.; but e.g. they do not show their letters). When selecting the kernel from grub, there's no output with any kind of information to me. There are only two lines presented all the time and suddenly the screen goes into the aforementioned state. I do not see the usual Linux boot up output. ** Affects: xorg (Ubuntu) Importance: Undecided Status: New -- Black screen after upgrade from 9.04 https://bugs.launchpad.net/bugs/519550 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 433457] Re: aptd crashed with error in connect()
** Attachment added: Dependencies.txt http://launchpadlibrarian.net/32106332/Dependencies.txt ** Attachment added: ProcMaps.txt http://launchpadlibrarian.net/32106333/ProcMaps.txt ** Attachment added: ProcStatus.txt http://launchpadlibrarian.net/32106334/ProcStatus.txt ** Attachment added: Traceback.txt http://launchpadlibrarian.net/32106335/Traceback.txt ** Visibility changed to: Public -- aptd crashed with error in connect() https://bugs.launchpad.net/bugs/433457 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 433457] Re: aptd crashed with error in connect()
*** This bug is a duplicate of bug 424793 *** https://bugs.launchpad.net/bugs/424793 This bug has been closed and I've been referred to the other one, but I can't access it?? -- aptd crashed with error in connect() https://bugs.launchpad.net/bugs/433457 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
