Bug 895041
| Summary: | QMP: forward port I/O error debug messages | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Sibiao Luo <sluo> |
| Component: | qemu-kvm | Assignee: | Laszlo Ersek <lersek> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | CC: | acathrow, chayang, eblake, flang, hhuang, jdenemar, juli, juzhang, kwolf, lcapitulino, lersek, michen, mrezanin, pbonzini, qzhang, sluo, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | qemu-kvm-1.5.3-20.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-06-13 10:27:08 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 971938, 1007204 | ||
| Bug Blocks: | 987757, 1026966 | ||
|
Description
Sibiao Luo
2013-01-14 11:02:26 UTC
Oh, good catch.
What happens here is that in RHEL6 we added the error messages for
debugging purposes. The positive errno value is correct, it's the
errno code that caused the VM to stop.
For RHEL7 we have two options:
1. Try to think on an upstremable solution (ie. extend the QMP
event with the error info)
2. Just forward port the RHEL6 solution
Item 2 is trivial, item 1 has to be discussed upstream and may or may not be simple.
Is this going to be solved in any way? If so, libvirt will either need to add support for the possible upstream solution or backport it's RHEL6 support for __com.redhat_reason. It will be solved as soon as I can work more than 16 hours per day. Thanks. Fix included in qemu-kvm-1.5.3-20.el7 Reproduce this bug: Version-Release number of selected component (if applicable): qemu-kvm-1.0-17.1.el7.x86_64 3.3.0-0.20.el7.x86_64 Do as the comment 0, after step 3, qemu-kvm prompts "VM status: paused (io-error)", guest just in paused status. # lvdisplay /dev/juli-vg/juli-lv --- Logical volume --- LV Path /dev/juli-vg/juli-lv LV Name juli-lv VG Name juli-vg LV UUID nxiIZQ-ME4b-HD6u-Lrff-r0S6-jGKW-soQaZR LV Write Access read only LV Creation host, time localhost.localdomain, 2013-12-12 23:30:37 -0500 LV Status available # open 1 LV Size 10.00 GiB Current LE 2560 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:3 --- <cli>: # /usr/bin/qemu-kvm -M pc -cpu host -enable-kvm -m 4G -smp 4,sockets=2,cores=2,threads=1 -device virtio-scsi-pci,bus=pci.0,addr=0x5,id=scsi0 -drive file=/home/juli/RHEL-7.0-20131127.1.qcow2,if=none,id=drive-scsi0-0-0,media=disk,cache=none,format=qcow2,werror=stop,rerror=stop,aio=native -device scsi-hd,drive=drive-scsi0-0-0,bus=scsi0.0,scsi-id=0,lun=0,id=juli,bootindex=1 \ -drive file=/dev/juli-vg/juli-lv,if=none,id=drive-virtio-disk1,format=raw,cache=none,werror=stop,rerror=stop,aio=native \ -device virtio-blk-pci,scsi=on,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1,bootindex=2 \ -spice port=5932,disable-ticketing -k en-us -vga qxl -global qxl-vga.vram_size=67108864 -monitor stdio -device virtio-balloon-pci,id=ballooning -qmp tcp:0:4445,server,nowait -global pvpanic.ioport=0x0505 After step 3 as comment 0: (qemu) info status VM status: paused (io-error) -------------- Verify this bug: Version-Release number of selected component (if applicable): qemu-kvm-1.5.3-21.el7.x86_64 # lvdisplay /dev/juli-vg/juli-lv --- Logical volume --- LV Path /dev/juli-vg/juli-lv LV Name juli-lv VG Name juli-vg LV UUID DXjFrZ-fCNt-0u1P-pcip-gpCT-17VW-EJ6b9F LV Write Access read only LV Creation host, time localhost.localdomain, 2013-12-13 11:27:26 +0800 LV Status available # open 0 LV Size 2.00 GiB Current LE 512 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:3 ------- # /usr/libexec/qemu-kvm -M pc -cpu host -enable-kvm -m 4G -smp 4,sockets=2,cores=2,threads=1 -device virtio-scsi-pci,bus=pci.0,addr=0x5,id=scsi0 -drive file=/home/juli/RHEL-7.0-20131127.1.qcow2_v3,if=none,id=drive-scsi0-0-0,media=disk,cache=none,format=qcow2,werror=stop,rerror=stop,aio=native -device scsi-hd,drive=drive-scsi0-0-0,bus=scsi0.0,scsi-id=0,lun=0,id=juli,bootindex=1 \ -drive file=/dev/juli-vg/juli-lv,if=none,id=drive-virtio-disk1,format=raw,cache=none,werror=stop,rerror=stop,aio=native \ -device virtio-blk-pci,scsi=on,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1,bootindex=2 \ -netdev tap,id=hostnet0,vhost=on,script=/etc/qemu-ifup -device virtio-net-pci,netdev=hostnet0,mq=on,vectors=17,id=net0,mac=00:1a:4a:42:0b:38,bus=pci.0 -spice port=5932,disable-ticketing -k en-us -vga qxl -global qxl-vga.vram_size=67108864 -monitor stdio -device virtio-balloon-pci,id=ballooning -qmp tcp:0:4445,server,nowait -global pvpanic.ioport=0x0505 qemu-kvm: -drive file=/dev/juli-vg/juli-lv,if=none,id=drive-virtio-disk1,format=raw,cache=none,werror=stop,rerror=stop,aio=native: could not open disk image /dev/juli-vg/juli-lv: The device is not writable: Permission denied /etc/qemu-ifdown: could not launch network script As the above show, qemu-kvm cannot boot. Based on above test, this bug has been verified. This request was resolved in Red Hat Enterprise Linux 7.0. Contact your manager or support representative in case you have further questions about the request. |