Bug 1018655

Summary: QMP: add errno information to OpenFileFailed error
Product: Red Hat Enterprise Linux 7 Reporter: Qian Guo <qiguo>
Component: qemu-kvmAssignee: Virtualization Maintenance <virt-maint>
Status: CLOSED DUPLICATE QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.0CC: acathrow, areis, bsarathy, flang, juzhang, kwolf, minovotn, mkenneth, sluo, virt-maint
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: 806775 Environment:
Last Closed: 2013-10-14 06:29:25 UTC Type: ---
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: 806775    
Bug Blocks:    

Comment 1 Qian Guo 2013-10-14 06:04:22 UTC 
Test this bug in RHEL7 host, components:

# uname -r
3.10.0-33.el7.x86_64
# rpm -q qemu-kvm
qemu-kvm-1.5.3-8.el7.x86_64


start cli w/ qmp:
<qemu-kvm cli> ... -qmp tcp:0:4555,server,nowait

hit same issue in RHEL7, the error is just like this:

{ "execute": "memsave",
             "arguments": { "val": 10,
                            "size": 100,
                            "filename": "/lll/lsl" } } 
{"error": {"class": "GenericError", "desc": "Could not open '/lll/lsl'"}}

{ "execute": "transaction",
     "arguments": { "actions": [
         { 'type': 'blockdev-snapshot-sync', 'data' : { "device": "drive-virtio-disk0","snapshot-file": "/some/place/my-image","format": "qcow2" } },{ 'type': 'blockdev-snapshot-sync', 'data' : { "device": "ide1-cd0","snapshot-file": "/some/place/my-image2","mode": "existing","format": "qcow2" } } ] } }
{"error": {"class": "DeviceNotFound", "desc": "Device 'drive-virtio-disk0' not found"}}

{ "execute": "change",
             "arguments": { "device": "ide1-cd0",
              "target": "/home/a"}}
{"error": {"class": "GenericError", "desc": "Could not open '/home/a'"}}


so cloned this bug