[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
I believe my test case is flawed, so I cannot verify with certainty if the issue is fixed or not. This is the same test case as I used before, for which I posted code in a gist: https://gist.github.com/stephank/764e3414d57bc3bcb6b3 Here's what I tried: - I started two new c3.large machines from ami-69e76c1e (eu-west-1 HVM 64-bit trusty with instance store) - I downloaded io.js 1.2.0 on machine A, together with the pub.js and sub.js scripts from my gist. - I installed redis-server on machine B and reconfigured redis to bind on to the internal IP (in 10.x.x.x) - The machines were initially running linux-virtual 3.13.0.45.52. I reproduced the issue in this setup by running sub.js twice, then pub.js once on machine A, connecting them to redis on machine B. The 'rides the rocket' message showed up in the logs, and the subs lost their connection. - I enabled trusty proposed on both machines with a pin, and selectively upgraded linux-virtual on both machines. Then rebooted on both. The kernel on both machines is now linux-virtual 3.13.0.46.53. - I ran the same test again, sub.js twice, pub.js once on machine A, connecting to machine B. There were no 'rides the rocket' messages, but the subs still lose their connections. I sporadically get 'net_ratelimit: x callbacks suppressed', but not on every test run. - I disabled scather/gather on both machines, which also dropped their MTU to 1500, and ran the test again several times. There were no more 'net_ratelimit' messages, but the subs still lose their connections. - I installed redis-server on machine A the same way, listening on the internal IP, and ran the same test on machine A, but this time connecting to itself on the internal IP. The test now runs indefinitely. (But this probably doesn't touch the driver.) So I'm not sure what to take away from this. I suppose I could continue by trying to fix my test case to run properly without scather/gather, before again enabling it. Or find a way to trigger it using a different test, such as with redis-benchmark. Stefan, is it sufficient verification if your own testing now shows it fixed? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
As Stefan Bader mentions in #22, the current workaround is: sudo ethtool -K eth0 sg off -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
Thanks for the continued help fixing this! I couldn't reproduce it using redis-benchmark on EC2, but that's okay. Scatter/gather IO is solely a performance flag in the driver? As in, it won't affect applications? The only effect I noticed after disabling it is that it's apparently required for jumbo framing: vif vif-0 eth0: Reducing MTU because no SG offload And it dropped to 1500. But I can live with that. Also, do you have a link to the upstream discussion? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
I can't comment on the driver implementation details, but I can give some further details about our experience. The app in question was a second screen app for the dutch public broadcasting network for the Eurovision Song Contest. The app was live for two semi-finals on tuesday the 6th and thursday the 8th, as well as the finals saturday the 10th. Load was lowest on the thursday, when the Netherlands did not perform, and highest saturday during the finals. We ran c3.large instances for all shows. During the first run on tuesday was when we first noticed the issue. Shortly before the second run on thursday we noticed the high MTU setting as a possible cause, and changed it to 1500 on half of our machines in the redundant setup. There was a clear difference in connection stability between these machines. For the third run on saturday, we had all machines on the normal MTU of 1500, as we adjusted our startup scripts to force the setting. We had zero connection issues that night, and clean kernel logs, even though this night saw the highest network load of all three. We have several m1.small instances running 24/7 as well, and these have clean kernel logs, but their network load is quite low. The MTU on these has always been untouched, and is a normal 1500, apparently by default. In the instance type list, EC2 shows Compute Optimized instances as having Enhanced Networking. Even though we don't qualify for it, perhaps the networking setup is different for these instances. https://aws.amazon.com/ec2/instance-types/ About a custom kernel, we'd have to look into deploying it, or reproducing the issue on a smaller test setup. I'd prefer looking into the latter, because maybe we can reproduce it between just two instances with stress tools. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
So I have a smaller test case. Basically, install Redis (from apt) on one machine, and Node.js (binaries from nodejs.org) with the below scripts on the other. Run pub.js once, and sub.js twice, this quickly triggers the error. The first arg to each script is the address of the redis machine; I use the internal 10.0.0.0/8 address. https://gist.github.com/stephank/764e3414d57bc3bcb6b3 I initially tried to do this using openbsd-inetd echo and several netcat processes, but that doesn't seem to trigger it. Maybe it's something specific about the way Redis distributes pubsub messages to its subscribers? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
If you'd like me to run this on EC2, I can give it a try. A custom kernel would simply be a replacement package? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
For what it's worth, the MTU appears to differ per instance type. At least c3.large has an MTU of 9000 by default, while m1.small has a normal MTU of 1500. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] [NEW] Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
Public bug reported: Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log: xen_netfront: xennet: skb rides the rocket: 19 slots Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout. The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines. Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.) The machines we run are started from ami-896c96fe. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 AlsaDevices: total 0 crw-rw 1 root audio 116, 1 May 9 09:01 seq crw-rw 1 root audio 116, 33 May 9 09:01 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Fri May 9 09:11:18 2014 Ec2AMI: ami-896c96fe Ec2AMIManifest: (unknown) Ec2AvailabilityZone: eu-west-1c Ec2InstanceType: c3.large Ec2Kernel: aki-52a34525 Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 PciMultimedia: ProcFB: ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: amd64 apport-bug ec2-images trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] Re: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots
The machine is no longer running, but I can run apport-collect from a similar machine. The only difference being that we've since added a line to our startup script to reduce the MTU to 1500. ** Tags added: apport-collected ** Description changed: Running Ubuntu 14.04 LTS on EC2, we see a lot of the following in the kernel log: xen_netfront: xennet: skb rides the rocket: 19 slots Each of these messages corresponds to a dropped TX packet, and eventually causes our application's connections to break and timeout. The problem appears when network load increases. We have Node.js processes doing pubsub with a Redis server, and these are most visibly affected, showing frequent connection loss. The processes talk to each other using the private addresses EC2 allocates to the machines. Notably, the default MTU on the network interface seems to have gone up from 1500 on 13.10, to 9000 in 14.04 LTS. Reducing the MTU back to 1500 seems to drastically reduce dropped packets. (Can't say for certain if it completely eliminates the problem.) The machines we run are started from ami-896c96fe. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 AlsaDevices: total 0 crw-rw 1 root audio 116, 1 May 9 09:01 seq crw-rw 1 root audio 116, 33 May 9 09:01 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory: 'iw' Date: Fri May 9 09:11:18 2014 Ec2AMI: ami-896c96fe Ec2AMIManifest: (unknown) Ec2AvailabilityZone: eu-west-1c Ec2InstanceType: c3.large Ec2Kernel: aki-52a34525 Ec2Ramdisk: unavailable IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 PciMultimedia: ProcFB: ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware N/A RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) + --- + AlsaDevices: + total 0 + crw-rw 1 root audio 116, 1 May 9 09:54 seq + crw-rw 1 root audio 116, 33 May 9 09:54 timer + AplayDevices: Error: [Errno 2] No such file or directory + ApportVersion: 2.14.1-0ubuntu3 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + CRDA: Error: [Errno 2] No such file or directory + CurrentDmesg: [ 24.724129] init: plymouth-upstart-bridge main process ended, respawning + DistroRelease: Ubuntu 14.04 + Ec2AMI: ami-896c96fe + Ec2AMIManifest: (unknown) + Ec2AvailabilityZone: eu-west-1c + Ec2InstanceType: c3.large + Ec2Kernel: aki-52a34525 + Ec2Ramdisk: unavailable + IwConfig: Error: [Errno 2] No such file or directory + Lspci: + + Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 + Package: linux (not installed) + PciMultimedia: + + ProcFB: + + ProcKernelCmdLine: root=LABEL=cloudimg-rootfs ro console=hvc0 + ProcVersionSignature: User Name 3.13.0-24.46-generic 3.13.9 + RelatedPackageVersions: + linux-restricted-modules-3.13.0-24-generic N/A + linux-backports-modules-3.13.0-24-generic N/A + linux-firmware N/A + RfKill: Error: [Errno 2] No such file or directory + Tags: trusty ec2-images + Uname: Linux 3.13.0-24-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video + _MarkForUpload: True -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] ProcCpuinfo.txt
apport information ** Attachment added: ProcCpuinfo.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108533/+files/ProcCpuinfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] ProcEnviron.txt
apport information ** Attachment added: ProcEnviron.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108534/+files/ProcEnviron.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] ProcInterrupts.txt
apport information ** Attachment added: ProcInterrupts.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108535/+files/ProcInterrupts.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] BootDmesg.txt
apport information ** Attachment added: BootDmesg.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108532/+files/BootDmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] UdevDb.txt
apport information ** Attachment added: UdevDb.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108537/+files/UdevDb.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] WifiSyslog.txt
apport information ** Attachment added: WifiSyslog.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108539/+files/WifiSyslog.txt ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] ProcModules.txt
apport information ** Attachment added: ProcModules.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108536/+files/ProcModules.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317811] UdevLog.txt
apport information ** Attachment added: UdevLog.txt https://bugs.launchpad.net/bugs/1317811/+attachment/4108538/+files/UdevLog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317811 Title: Dropped packets on EC2, xen_netfront: xennet: skb rides the rocket: x slots To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1317811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 676183] Re: Basic shaders produce incorrect output
Neither the Chromium 13 nightly nor Firefox 4 in Natty enable WebGL for my card, though Firefox 4 does let me bypass its blacklist with an envvar MOZ_GLX_IGNORE_BLACKLIST. With that enabled, the page now displays correctly for me. Feel free to close this bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/676183 Title: Basic shaders produce incorrect output -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 676183] Re: Basic shaders produce incorrect output
After some more experimentation, it looks like it's specifically a problem with float literals, which are floored / truncated. Things work when I simply replace them with uniforms and set their value in JavaScript. -- Basic shaders produce incorrect output https://bugs.launchpad.net/bugs/676183 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 676183] [NEW] Basic shaders produce incorrect output
Public bug reported: Trying to build something on WebGL technology, I noticed that basic shaders were producing incorrect output. The problem occurs on both Firefox 4 and Chrome 7. I'm on Intel GM965 hardware, but strangely also see the exact same problem when I install `libgl1-mesa-swrast` or try with `LIBGL_ALWAYS_SOFTWARE=1`. The problem can be reproduced with a fragment shader that simply says: gl_FragColor = vec4(1.0, 0.9, 0.9, 1.0); The output will appear in bright red. I've had several people on Windows and Maverick with nVidia report that they see a pinkish white, as I was expecting in the first place. I've uploaded a simple WebGL example here: (I'll try to attach it.) http://stephan.kochen.nl/shaderbug.html ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: libgl1-mesa-dri 7.9~git20100924-0ubuntu2 ProcVersionSignature: Ubuntu 2.6.35-23.37-generic 2.6.35.7 Uname: Linux 2.6.35-23-generic x86_64 Architecture: amd64 DRM.card0.LVDS.1: status: connected enabled: enabled dpms: On modes: 1280x800 edid-base64: AP///wAyDAEGAAARAQOAIRV4CrNAmVlTjSclUFQBAQEBAQEBAQEBAQEBAQEBEhsAiFAgEDAwGDYAS88QAAAZ/gBMR1BoaWxpcHNMQ0QK/gBMUDE1NFdYNC1UTEE0AOk= DRM.card0.VGA.1: status: disconnected enabled: disabled dpms: On modes: edid-base64: Date: Tue Nov 16 19:13:06 2010 EcryptfsInUse: Yes InstallationMedia: Ubuntu 10.04 LTS Lucid Lynx - Release amd64 (20100429) MachineType: Hewlett-Packard HP Compaq 6710b (KE121ET#ABH) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-23-generic root=UUID=59c16ced-1ace-403d-9b2b-dcc19e7626d4 ro quiet splash ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=nl_NL.utf8 SHELL=/bin/bash SourcePackage: mesa dmi.bios.date: 01/15/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68DDU Ver. F.15 dmi.board.name: 30C0 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 71.2E dmi.chassis.asset.tag: CNU8092SDY dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68DDUVer.F.15:bd01/15/2009:svnHewlett-Packard:pnHPCompaq6710b(KE121ET#ABH):pvrF.15:rvnHewlett-Packard:rn30C0:rvrKBCVersion71.2E:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP Compaq 6710b (KE121ET#ABH) dmi.product.version: F.15 dmi.sys.vendor: Hewlett-Packard system: distro: Ubuntu codename: maverick architecture: x86_64 kernel: 2.6.35-23-generic ** Affects: mesa (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug maverick -- Basic shaders produce incorrect output https://bugs.launchpad.net/bugs/676183 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 676183] Re: Basic shaders produce incorrect output
-- Basic shaders produce incorrect output https://bugs.launchpad.net/bugs/676183 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 676183] Re: Basic shaders produce incorrect output
Here's the example page as an attachment, for archiving. Perhaps useful to add, some other things I've tried: * Drawing interpolated color shades using a varying variable works. * Functions like `dot` and `max` produce valid float output. For example, using these two, I can implement just the diffuse step in Phong shading. * But once I start using using regular operators on the floats, the values are truncated. ** Attachment added: WebGL example page that produces the problem. https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/676183/+attachment/1735522/+files/shaderbug.html -- Basic shaders produce incorrect output https://bugs.launchpad.net/bugs/676183 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 414956] Re: Cannot maximize PC volume without producing crackling sound
This may not be news, but for reference, I'm seeing the issue again in 0.9.18-0ubuntu1~ubuntuaudiodev2. -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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
Re: [Bug 210921] Re: Fontconfig should default to full hinting
On 14-09-09 01:00, Pascal de Bruijn wrote: Maybe that's matter of preference? The fonts aren't blocky... They're just sharp and crisp... The slightly hinted fonts give me a headache because of their fuzzyness... In the screenshot I uploaded, the characters sometimes touch or overlap with full hinting. In the highlighted parts, closely look at 'ar' in 'Spark', and 'Al' in 'Algemeen'. Apart from what I find pleasant to look at, the smoothing with slight hinting, to me, pretty much resembles what I see in OS X. I personally hold Apple in high regard when it comes to typography. But then, I really know next to nothing about typography. If it really is a matter of preference, then what are the arguments for changing the default? How can we tell which is right? -- Fontconfig should default to full hinting https://bugs.launchpad.net/bugs/210921 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
Re: [Bug 210921] Re: Fontconfig should default to full hinting
On 14-09-09 11:56, Pascal de Bruijn wrote: Well, first, you're using a commercial font for comparison, which renders particularly well with slight hinting, other fonts do not fare as well. Also, are you using a non-standard size as well? 9pt? I've attached a comparison using the default font in Ubuntu 'sans', which is aliased to DejaVu Sans if I'm not mistaken. The font here is also at it's default size 10pt. Thanks for that screenshot. Even if it was just to convince me. That and going back to Patrik's screenshot, the default fonts definitely look better with full hinting. -- Fontconfig should default to full hinting https://bugs.launchpad.net/bugs/210921 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 210921] Re: Fontconfig should default to full hinting
Pascal, I found this bug report through you blog post, FYI. I'd like to add some counterweight here, but I'm not sure if I'm making assumptions. Is changing the hinting option in the appearance control panel the same as switching those symlinks? Because setting the hinting to full there actually makes fonts look rather blocky in my case, even squished together. I've attached a screenshot for comparison. Could be that I tried to work around the problem by picking a different font, rather than a different hinting setting. The text in that screenshot is all in Lucida Sans and Lucida Sans Typewriter. Besides the slight hinting, I also have sub-pixel rendering on and set to RGB. But I'm not sure what other settings matter in this case. ** Attachment added: Comparison of slight and full hinting with Lucida fonts http://launchpadlibrarian.net/31757878/hinting_comparison.png -- Fontconfig should default to full hinting https://bugs.launchpad.net/bugs/210921 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 423426] Re: linux-image-2.6.31-9-virtual package missing virtio modules
Perhaps something else is wrong in my setup, but just 20 minutes ago I did an update on a Karmic VM to what appears to be linux-virtual 2.6.31.10.21. The modules are still missing. Booting from the server CD and dropping to a shell to investigate, the last kernel version for which I can find the virtio modules on the virtual drive is 2.6.31-5. I don't have a -6, but -7, -8, -9 and -10 all lack virtio modules. The VM boots fine with 2.6.31-5 after changing the grub configuration to use it. I've attached a screenshot of 2.6.31-10 booting, after it has dropped me to a busybox shell. It shows that the running kernel is indeed -10 and /dev/vda* nodes are missing. ** Attachment added: Screenshot of failed boot in 2.6.31-10 http://launchpadlibrarian.net/31542914/Schermafdruk-test1-ubuntu%20Virtual%20Machine.png -- linux-image-2.6.31-9-virtual package missing virtio modules https://bugs.launchpad.net/bugs/423426 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 414956] apport-collect data
AplayDevices: List of PLAYBACK Hardware Devices card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 0/1 Subdevice #0: subdevice #0 Architecture: amd64 ArecordDevices: List of CAPTURE Hardware Devices card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/pcmC0D0p: shteef 4506 F...m pulseaudio /dev/snd/controlC0: shteef 4506 F pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xe4804000 irq 16' Mixer name : 'Analog Devices AD1981' Components : 'HDA:11d41981,103c30c0,00100200 HDA:11c11040,103c1378,00100200' Controls : 11 Simple ctrls : 9 DistroRelease: Ubuntu 9.10 Package: pulseaudio 1:0.9.16~test7-14-g7ca81-0ubuntu2 PackageArchitecture: amd64 ProcEnviron: SHELL=/bin/bash PATH=(custom, user) LANG=nl_NL.UTF-8 LANGUAGE=nl_NL.UTF-8 ProcVersionSignature: Ubuntu 2.6.31-10.30-generic Uname: Linux 2.6.31-10-generic x86_64 UserGroups: adm admin audio cdrom dialout dip disk floppy fuse libvirtd lpadmin plugdev vboxusers video -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] AlsaDevices.txt
** Attachment added: AlsaDevices.txt http://launchpadlibrarian.net/31544754/AlsaDevices.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] BootDmesg.txt
** Attachment added: BootDmesg.txt http://launchpadlibrarian.net/31544760/BootDmesg.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] Card0.Amixer.values.txt
** Attachment added: Card0.Amixer.values.txt http://launchpadlibrarian.net/31544763/Card0.Amixer.values.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] Card0.Codecs.codec.0.txt
** Attachment added: Card0.Codecs.codec.0.txt http://launchpadlibrarian.net/31544765/Card0.Codecs.codec.0.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] Card0.Codecs.codec.1.txt
** Attachment added: Card0.Codecs.codec.1.txt http://launchpadlibrarian.net/31544770/Card0.Codecs.codec.1.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] CurrentDmesg.txt
** Attachment added: CurrentDmesg.txt http://launchpadlibrarian.net/31544781/CurrentDmesg.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] PciMultimedia.txt
** Attachment added: PciMultimedia.txt http://launchpadlibrarian.net/31544787/PciMultimedia.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] Dependencies.txt
** Attachment added: Dependencies.txt http://launchpadlibrarian.net/31544782/Dependencies.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] UserAsoundrc.txt
** Attachment added: UserAsoundrc.txt http://launchpadlibrarian.net/31544788/UserAsoundrc.txt -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] UserAsoundrcAsoundconf.txt
** Attachment added: UserAsoundrcAsoundconf.txt http://launchpadlibrarian.net/31544789/UserAsoundrcAsoundconf.txt ** Changed in: pulseaudio (Ubuntu) Status: Incomplete = New ** Tags added: apport-collected -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] Re: Cannot maximize PC volume without producing crackling sound
Wow, that's quite a bunch of uploads there. I should mention that on the current version of PulseAudio, which seems to be 0.9.16~test7-14-g7ca81-0ubuntu2, I see some slight changes. PulseAudio no longer restricts my slider movement in alsamixer, and let's me slide the PCM all the way down without interfering and adjusting master. Problem still stands though, I cannot get a sane 'maximum' volume without using alsamixer. -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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
Re: [Bug 414956] Re: Cannot maximize PC volume without producing crackling sound
On 09-09-09 18:58, Daniel T Chen wrote: The current version is in the ubuntu-audio-dev PPA: 0.9.16~test7-14-g7ca81-0ubuntu3~ubuntuaudiodev1 I see. I will happily track the PPA in this installation. The version there no longer changes the PCM volume, so I can set it to 74% permanently. This solves my problem. -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 420137] Re: karmic doesn't shut down - goes to blank screen with cursor
I'm seeing this too. I will have to double check, but is it possible that it is trying to kill init/upstart? I believe at one point, I saw two lines starting with init: and mentioning SIGSTOP first, then SIGCONT. -- karmic doesn't shut down - goes to blank screen with cursor https://bugs.launchpad.net/bugs/420137 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 414956] Re: Cannot maximize PC volume without producing crackling sound
Now that you mention it, yes I do. I tried the slider in the output devices tab and it also slides all the way up to crackling sound. Perhaps it's a PulseAudio thing rather than a gnome-media thing? -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 414956] [NEW] Cannot maximize PC volume without producing crackling sound
Public bug reported: Binary package hint: gnome-media I often maximize volume on my PC in order to delegate volume control to an external volume control wheel that speakers with amplifiers and some headphones have. The issue is that, maximizing the PCM volume on my laptop produces crackling sound. The applet used to not touch this, so I always had this at a fixed 80%, and only the Master volume setting was ever adjusted. In Karmic, adjusting volume using the applet changes both PCM and Master, and when maximized thus produces crackling sound. My workaround options appear to be: * Find the 'sweet spot' on the slider each time I do this. Tedious. * Mix and mash the applet and external volume controls. Seems against the 'flat volume' principle. * Maximize the external volume control and only use the applet. Produces slight static. * Resort to 'alsamixer -c0'. Which means giving up on the GUI. Right now, I use the last of those workarounds, but none of these seem optimal. Some more background on that: Interestingly, when adjusting the PCM volume in alsamixer, the system seems to have some 'sweet spot' logic already built in. If I try to lower PCM volume below 74%, it adjusts Master volume instead. This works vice versa as well: adjusting volume from 0% up first increases PCM to 74%, then starts increasing Master to 100% before finally increasing PCM again to it's full 100% volume. Expected behavior would be a sane volume with no crackling when the volume slider is set to maximum. The driver I'm using appears to be snd-intel-hda, and lspci tells me: Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) Some package versions: gnome-media 2.27.90-0ubuntu1 pulseaudio 1:0.9.16~test4-0ubuntu6 alsa-base 1.0.20+dfsg-1ubuntu4 ** Affects: gnome-media (Ubuntu) Importance: Undecided Status: New -- Cannot maximize PC volume without producing crackling sound https://bugs.launchpad.net/bugs/414956 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 301305] [NEW] cherokee-0.10.1-1 is built without TLS support
Public bug reported: Binary package hint: cherokee The jaunty package of cherokee, 0.10.1-1, is built without TLS support. Notice the distinct lack of libgnutls in this output: # ldd /usr/sbin/cherokee-worker linux-vdso.so.1 = (0x7fffca9fe000) libcherokee-base.so.0 = /usr/lib/libcherokee-base.so.0 (0x7f7cc252f000) libcherokee-server.so.0 = /usr/lib/libcherokee-server.so.0 (0x7f7cc2311000) libpthread.so.0 = /lib/libpthread.so.0 (0x7f7cc20f5000) libdl.so.2 = /lib/libdl.so.2 (0x7f7cc1ef1000) libc.so.6 = /lib/libc.so.6 (0x7f7cc1b7f000) /lib64/ld-linux-x86-64.so.2 (0x7f7cc2765000) Rebuilding the package clearly shows: checking for pkg-config... no checking for GNUTLS... checking for ldap_init in -lldap... no The problem was solved by adding pkg-config to Build-Depends. Results are now: checking pkg-config is at least version 0.9.0... yes checking for GNUTLS... yes And: # ldd /usr/sbin/cherokee-worker linux-vdso.so.1 = (0x7fff895ff000) libcherokee-base.so.0 = /usr/lib/libcherokee-base.so.0 (0x7f8581065000) libcherokee-server.so.0 = /usr/lib/libcherokee-server.so.0 (0x7f8580e46000) libgnutls.so.26 = /usr/lib/libgnutls.so.26 (0x7f8580b99000) libtasn1.so.3 = /usr/lib/libtasn1.so.3 (0x7f8580988000) libz.so.1 = /usr/lib/libz.so.1 (0x7f858077) libgcrypt.so.11 = /lib/libgcrypt.so.11 (0x7f8580509000) libgpg-error.so.0 = /lib/libgpg-error.so.0 (0x7f8580306000) libpthread.so.0 = /lib/libpthread.so.0 (0x7f85800ea000) libdl.so.2 = /lib/libdl.so.2 (0x7f857fee6000) libc.so.6 = /lib/libc.so.6 (0x7f857fb74000) /lib64/ld-linux-x86-64.so.2 (0x7f858129c000) And finally: # netstat -l -p -n | grep 443 tcp6 0 0 :::443 :::*LISTEN 20207/cherokee-work ** Affects: cherokee (Ubuntu) Importance: Undecided Status: New -- cherokee-0.10.1-1 is built without TLS support https://bugs.launchpad.net/bugs/301305 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 211962] Re: keyjnote exits with OpenGL error
I had a similar problem trying to run a Python-based OpenGL application on a minimal install. It turns out, the Python OpenGL module uses the ctypes module to find libGL, which in turns relies on binutils' objdump. Try installing the binutils package, and see if this solves your problem. -- keyjnote exits with OpenGL error https://bugs.launchpad.net/bugs/211962 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
