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Description of problem: Actually, any -device with parameter "?" and without parameter driver crashes. Such arguments make no sense. How reproducible: Always Steps to Reproduce: 1. qemu-kvm --nodefaults --enable-kvm -vnc :0 -S -m 384 -device '?=x' Actual results: SEGV Expected results: Fails with suitable error message Additional info: Fixed upstream in commit 542379f4.
Reproduce the issue with qemu-kvm-0.12.1.2-2.209.el6_2.2.x86_64 Actual Result: The driver crashes when the -device with parameter "?". # /usr/libexec/qemu-kvm --nodefaults --enable-kvm -vnc :0 -S -m 1024 -device '?=x' Segmentation fault (core dumped) Verified this issue with qemu-kvm-0.12.1.2-2.221.el6.x86_64 Actual Result: Fails with suitable error message # /usr/libexec/qemu-kvm --nodefaults --enable-kvm -vnc :0 -S -m 1024 -device '?=x' qemu-kvm: -device ?=x: Parameter 'driver' is missing Above all, this issue have been fixed.
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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. http://rhn.redhat.com/errata/RHBA-2012-0746.html