Public bug reported: Binary package hint: qemu-kvm
If I try to attach a disk image using qemu-kvm to a network block device, it will not work if I use the --nocache flag. Here is an example: $ qemu-nbd -c /dev/nbd7 --nocache whowho.qcow2 $ ls /dev/nbd7* /dev/nbd7 If you look in dmesg, there aren't any mentions of the above commands. However, this works: $ sudo qemu-nbd -c /dev/nbd7 whowho.qcow2 $ ls /dev/nbd7* /dev/nbd7 /dev/nbd7p1 /dev/nbd7p2 And in dmesg, I see this: [ 8489.904028] nbd7: p1 p2 The latter command doesn't actually always work. Sometimes it just takes several tries. When it doesn't work, there are no error messages or any mention in the logs about it not working. It would be nice if it would give some more info about what is happening. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: qemu-kvm 0.12.3+noroms-0ubuntu9 ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2 Uname: Linux 2.6.32-21-generic x86_64 NonfreeKernelModules: wl Architecture: amd64 Date: Mon May 3 12:12:57 2010 EcryptfsInUse: Yes InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD MachineType: Dell Inc. Latitude E6500 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=3c7abe9e-d3a4-4123-b57f-2a41b13a3fcd ro quiet splash ProcEnviron: LANG=en_US.utf8 SHELL=/bin/bash SourcePackage: qemu-kvm dmi.bios.date: 09/17/2009 dmi.bios.vendor: Dell Inc. dmi.bios.version: A16 dmi.board.name: 0W612R dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA16:bd09/17/2009:svnDellInc.:pnLatitudeE6500:pvr:rvnDellInc.:rn0W612R:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude E6500 dmi.sys.vendor: Dell Inc. ** Affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug lucid -- The --nocache flag for qemu-nbd doesn't work https://bugs.launchpad.net/bugs/574588 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs