[Bug 1317833] Re: DRBD 8.4 kernel crash when using same resource for 2 minors
I have done a bit more testing and this also happens with a manually compiled DRBD 8.4.5 and manually compiled drbdsetup, so this bug is probably more something for the DRBD developers to fix. I will address this issue on their mailinglist. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317833 Title: DRBD 8.4 kernel crash when using same resource for 2 minors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/drbd8/+bug/1317833/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1317833] [NEW] DRBD 8.4 kernel crash when using same resource for 2 minors
Public bug reported: When you use the same resource for 2 minors, it crashes the kernel. Of course you should not do that, though I think it should not crash the kernel. The expected output is just an error message. This makes DRBD resource/minor management more difficult and also kind of dangerous. DRBD 8.3 does not have this problem, probably because it works a bit different with resources/minors. Steps to reproduce: * drbdsetup new-resource test1 * drbdsetup new-minor test1 1 0 * drbdsetup new-minor test1 3 0 It exits showing the message 'Killed'. The kernel log shows some errors and DRBD is not usable anymore. After a short while or when executing other drbdsetup commands, the whole system crashes. I am not sure whether it's the utils package, or the kernel module. System info: Description:Ubuntu 14.04 LTS Release:14.04 drbd8-utils version: 2:8.4.4-1ubuntu1 Installed kernel: linux-image-3.13.0-24-generic 3.13.0-24.47 ** Affects: drbd8 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1317833 Title: DRBD 8.4 kernel crash when using same resource for 2 minors To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/drbd8/+bug/1317833/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 795717] Re: 32bit rhel and centos 5.(5|6) hangs on boot on natty
After some testing, I have found a possible cause. The instance with SMP and CentOS i386 seems to boot fine when using a different clocksource. You can test this by booting the CD/DVD image with: linux clocksource=acpi_pm I have tested the KVM clocksource and the acpi_pm clocksource several times and the KVM one always seems to crash. The acpi_pm one always works. This might be a bug in de CentOS kernel? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/795717 Title: 32bit rhel and centos 5.(5|6) hangs on boot on natty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 795717] Re: 32bit rhel and centos 5.(5|6) hangs on boot on natty
If I boot from the ISO "CentOS-5.5-i386-bin-DVD.iso" from the CentOS FTP, the instance will hang at the same point as booting the instance from the virtual disk. It is solved by disabling SMP (using just 1 CPU). This is my KVM commandline: kvm -daemonize -enable-kvm -smp 8 -smp 8,cores=4 -m 2048 -vnc 0.0.0.0:4 -usb -usbdevice mouse -drive file=/dev/vservers/test10,index=0,media=disk,if=virtio -drive file=/root/iso/CentOS-5.5-i386-bin-DVD.iso,index=0,media=cdrom,if=ide -boot order=d -net nic,vlan=0,macaddr=00:77:95:ab:91:be,model=virtio -net tap,vlan=0,ifname=test10,script=/usr/share/vcluster/ifup.pl,downscript=/usr/share/vcluster/ifdown.pl -net nic,vlan=1,macaddr=00:77:95:e9:05:5c,model=virtio -net tap,vlan=1,ifname=test11,script=/usr/share/vcluster/ifup.pl,downscript=/usr/share/vcluster/ifdown.pl -monitor unix:/tmp/test1,server,nowait -pidfile /tmp/test1.pid I am running KVM 0.14.0+noroms-0ubuntu4.3 (compiled on 10.04 using source debs) on Ubuntu 10.04 LTS with kernel 2.6.32-33-server. I know this is probably not a supported combination, but since this is the same problem, I thought it might be useful to still answer on this bugreport. Attached is a VNC screenshot. It is already hanging for about 15 minutes on this point. ** Attachment added: "KVM VNC screenshot of hanging CentOS instance" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/+attachment/2261087/+files/kvmhang.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/795717 Title: 32bit rhel and centos 5.(5|6) hangs on boot on natty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/795717/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 588293] Re: Memory leak
One of the virtual machines with 2 GB RAM, is already using 3.5 GB RAM here, so the leaking still exists. I hoped that this was the fix... Has anyone already tested qemu 0.12.4? If this didn't fix it, the bug might still exist in the new qemu version. -- Memory leak https://bugs.launchpad.net/bugs/588293 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 588293] Re: Memory leak
Thanks for the patch :) I've installed the patched version on two production nodes here. I will have the results in a few days probably. -- Memory leak https://bugs.launchpad.net/bugs/588293 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 588293] Re: Memory leak
The guests are running Debian Lenny with the default 2.6.26 kernel or Ubuntu 10.04 LTS with the default 2.6.32 kernel. They are doing different things, but mostly webserving tasks. The strange thing is, one of the virtual servers is running an Exim/Spamassassin based spam checking gateway. And the memory usage of that specific virtual server grows a lot faster than the others. Data is partly saved on a ramdisk on this virtual machine. So maybe it's related to how much I/O there is on this ramdisk. -- Memory leak https://bugs.launchpad.net/bugs/588293 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 588293] [NEW] Memory leak
Public bug reported: Binary package hint: qemu-kvm Ubuntu release: 10.04 LTS Package version: 0.12.3+noroms-0ubuntu9 There seems to be a huge memory leak in qemu/kvm 0.12.3. After a while, a virtual machine is using much more memory on the host system, than actually is in use on the guest system. A guest system with only 512 MB assigned, can even use multiple GB's of memory. This bug is also discussed here: http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2989366&group_id=180599 Would it be possible to fix this bug in Ubuntu? It makes KVM a bit useless currently, because running 2 GB of VM's can even cost 16 GB of memory. ** Affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New -- Memory leak https://bugs.launchpad.net/bugs/588293 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
