[Qemu-devel] [Bug 584153] Re: no useful error message when tap device open fails

[Loïc Minier]

** Bug watch added: Debian Bug tracker #578154
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578154

** Also affects: qemu-kvm (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578154
   Importance: Unknown
       Status: Unknown

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no useful error message when tap device open fails
https://bugs.launchpad.net/bugs/584153
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Status in QEMU: New
Status in “qemu-kvm” package in Debian: Unknown

Bug description:
When using tap network devices and it fails, qemu gives no information about 
what the problem is (permission denied, device busy or other), making debugging 
of such situations, especially for newbies, very difficult.  The proposed patch 
just adds strerror() around the place, making it more friendly.

See also Debian bug#578154, 
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=578154 and a discussion on 
qemu-devel at http://marc.info/?t=127192875200003 .