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[Qemu-devel] [Bug 432154] Re: dynamic block device attach/detach not fun
From: |
Wolfgang Nagele |
Subject: |
[Qemu-devel] [Bug 432154] Re: dynamic block device attach/detach not functional with karmic KVM |
Date: |
Thu, 28 Oct 2010 17:16:05 -0000 |
I believe this bug is still existing in the latest 10.10 server release.
When attaching a volume the nc.log shows that it was properly mounted
via iSCSI and one can access it on the node but it will not appear in
the guest. The guest is the latest UEC release of Lucid. Can anybody
confirm that this problem exists in 10.10 UEC?
--
dynamic block device attach/detach not functional with karmic KVM
https://bugs.launchpad.net/bugs/432154
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Status in QEMU: Fix Released
Status in “eucalyptus” package in Ubuntu: Invalid
Status in “libvirt” package in Ubuntu: Invalid
Status in “qemu-kvm” package in Ubuntu: Fix Released
Status in “eucalyptus” source package in Karmic: Invalid
Status in “libvirt” source package in Karmic: Invalid
Status in “qemu-kvm” source package in Karmic: Fix Released
Bug description:
The version of KVM currently in karmic does not appear to have a fully
functional dynamic block device attach/detach:
outside VM:
---------------------------------------------------------------
address@hidden:/root# virsh list
Connecting to uri: qemu:///system
Id Name State
----------------------------------
1 i-512A0927 running
address@hidden:/root# ls -l /tmp/foobar
-rw-r--r-- 1 root root 33554432 2009-09-17 15:09 /tmp/foobar
address@hidden:/root# cat /tmp/meh
<disk type='block'><driver name='phy'/><source dev='/tmp/foobar'/><target
dev='sdb'/></disk>
address@hidden:/root# virsh attach-device 1 /tmp/meh
Connecting to uri: qemu:///system
Device attached successfully
address@hidden:/root#
inside VM (with acpiphp loaded)
--------------------------------------------------------------
address@hidden:/lib/modules# dmesg
[ 1482.978287] pci 0000:00:06.0: reg 10 io port: [0x00-0xff]
[ 1482.978327] pci 0000:00:06.0: reg 14 32bit mmio: [0x000000-0x0003ff]
[ 1482.978365] pci 0000:00:06.0: reg 18 32bit mmio: [0x000000-0x001fff]
[ 1482.978673] pci 0000:00:02.0: BAR 6: bogus alignment [0x0-0x0] flags 0x2
[ 1482.978750] decode_hpp: Could not get hotplug parameters. Use defaults
[ 1482.982167] sym53c8xx 0000:00:06.0: enabling device (0000 -> 0003)
[ 1482.982274] sym53c8xx 0000:00:06.0: PCI INT A -> Link[LNKB] -> GSI 10
(level, high) -> IRQ 10
[ 1482.984011] sym1: <895a> rev 0x0 at pci 0000:00:06.0 irq 10
[ 1482.989722] sym1: No NVRAM, ID 7, Fast-40, LVD, parity checking
[ 1482.992017] sym1: SCSI BUS has been reset.
[ 1483.001733] scsi6 : sym-2.2.3
address@hidden:/lib/modules#
----------------------------------------------------------------
libvirt/kvm appear to believe that the block device has been attached, but the
device is not showing up in the guest (this process with the same VM/kernel
works on Jaunty). Apparmor is disabled.
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Wolfgang Nagele <=