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** Changed in: qemu Status: New => Incomplete -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1391942 Title: Unnecessary events option of the trace argument with UST backend Status in QEMU: Incomplete Bug description: When running configure with the --enable-trace-backends=ust option and compiling. The user should not have to specify a the "events" and "file" options because they are not used with that tracing framework. Right now, in order the use this option the need to specify a dummy events file. This fails: $> qemu-system-x86_64 -hda debian_wheezy_amd64_standard.qcow2 -trace -m 512 qemu-system-x86_64: -trace -m: Invalid parameter '-m' This works: $> qemu-system-x86_64 -hda debian_wheezy_amd64_standard.qcow2 -trace events=dummy-events.txt -m 512 VNC server running on `127.0.0.1:5900' I am using version: $> qemu-system-x86_64 --version QEMU emulator version 2.1.90, Copyright (c) 2003-2008 Fabrice Bellard To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1391942/+subscriptions