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Description of problem:
qemu needs a better warning when the qemu-ifup script is busy
Version-Release number of selected component (if applicable):
qemu-kvm-rhev-2.3.0-2.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1. enter python interactive interface and open qemu-ifup in "w" mode
In [4]: f = open("/etc/qemu-ifup", "w")
In [5]: print f
<open file '/etc/qemu-ifup', mode 'w' at 0x1d34db0>
2. now launching a qemu process with this script
qemu-kvm -monitor stdio -S -device virtio-net-pci,mac=9a:81:82:83:84:85,id=idR5RhhY,netdev=iduPtGrR -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup
/etc/qemu-ifup: could not launch network script
qemu-kvm: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: Device 'tap' could not be initialized
3.
Actual results:
/etc/qemu-ifup: could not launch network script
qemu-kvm: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: Device 'tap' could not be initialized
Expected results:
qemu should raise a more descriptive error
eg:
Text file busy: /etc/qemu-ifup
Additional info:
upstream qemu would be a bit more descriptive by giving an error number,
rather then just telling it failed.
./qemu-system-x86_64 -monitor stdio -S -device virtio-net-pci,mac=9a:81:82:83:84:85,id=idR5RhhY,netdev=iduPtGrR -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup
qemu-system-x86_64: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: network script /etc/qemu-ifup failed with status 256
Reproduce this bug on qemu-kvm-rhev-2.3.0-31.el7.x86_64:
Steps to Reproduce:
1. enter python interactive interface and open qemu-ifup in "w" mode
In [4]: f = open("/etc/qemu-ifup", "w")
In [5]: print f
<open file '/etc/qemu-ifup', mode 'w' at 0x1d34db0>
2. now launching a qemu process with this script
qemu-kvm -monitor stdio -S -device virtio-net-pci,mac=9a:81:82:83:84:85,id=idR5RhhY,netdev=iduPtGrR -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup
/etc/qemu-ifup: could not launch network script
qemu-kvm: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: Device 'tap' could not be initialized
------------------------------------------------------------------------------
Verify this bug on qemu-kvm-rhev-2.6.0-1.el7.x86_64:
The same test steps with above.
[root@dhcp-8-118 qemu260-1]# /usr/libexec/qemu-kvm -monitor stdio -S -device virtio-net-pci,mac=9a:81:82:83:84:85,id=idR5RhhY,netdev=iduPtGrR -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup
qemu-kvm: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: network script /etc/qemu-ifup failed with status 256
More descriptive, So this bug fix well.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2016-2673.html
Description of problem: qemu needs a better warning when the qemu-ifup script is busy Version-Release number of selected component (if applicable): qemu-kvm-rhev-2.3.0-2.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. enter python interactive interface and open qemu-ifup in "w" mode In [4]: f = open("/etc/qemu-ifup", "w") In [5]: print f <open file '/etc/qemu-ifup', mode 'w' at 0x1d34db0> 2. now launching a qemu process with this script qemu-kvm -monitor stdio -S -device virtio-net-pci,mac=9a:81:82:83:84:85,id=idR5RhhY,netdev=iduPtGrR -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup /etc/qemu-ifup: could not launch network script qemu-kvm: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: Device 'tap' could not be initialized 3. Actual results: /etc/qemu-ifup: could not launch network script qemu-kvm: -netdev tap,id=iduPtGrR,vhost=on,script=/etc/qemu-ifup: Device 'tap' could not be initialized Expected results: qemu should raise a more descriptive error eg: Text file busy: /etc/qemu-ifup Additional info: