On Thu, Mar 07, 2013 at 11:02:07AM -0000, Helge Rausch wrote: > When a block-stream is initiated via QMP and the QMP socket is closed on > client side before the job is finished, QEMU crashes with a buffer > overflow, somewhere at the end of the streaming process. > > Without QMP I can stream via the HMP without problems. After crashing, I > cannot boot from the active image anymore. > > I was able to reproduce this with qemu-kvm and qemu-system-x86_64 on two > different machines. > > Version: > QEMU emulator version 1.2.0 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice > Bellard
I cannot reproduce this with qemu-system-x86-1.2.2-6.fc18.x86_64. > I started QEMU with the following script: > > qemu-kvm \ > -monitor vc \ > -m 512 \ > -hda "$1" \ > -net nic,vlan=0 \ > -net user,vlan=0 \ > -localtime \ > -smp 2 \ > -qmp tcp:localhost:4444,server,nowait I used your command-line and the following QMP commands: $ QMP/qmp-shell localhost:4444 (QEMU) blockdev-snapshot-sync device=ide0-hd0 snapshot-file=test2.qcow2 (QEMU) block-stream ide0-hd0 (QEMU) query-block-jobs ...output shows the job running... (QEMU) Ctrl+D The block job completes successfully and I get no crash. Please try qemu.git/master to see if the bug is still there for you: $ git clone git://git.qemu-project.org/qemu.git $ cd qemu $ ./configure --target-list=x86_64-softmmu $ make $ x86_64-softmmu/qemu-system-x86_64-softmmu -enable-kvm ... Stefan
