sorry, currently I'm busy and there's too much time gone, that I can check the things in a quick way. I'll try it, when I'm less busy, but this will probably take some weeks...
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/917824 Title: qemu loops/hangs on extending qcow2-diskspace Status in QEMU: New Status in “qemu-kvm” package in Ubuntu: Incomplete Bug description: system is ubuntu 11-10 with qemu-kvm 0.14.1 (standard dpkg) while trying to install a software in a winXP-guest on a nearly empty disk within a qcow2-file, qemu stops answering console and vnc. gdb on original binary shows, that it doesn't really hang, but seems to endless loop recompiling the binary with debugging-symbols shows following problem: in block/qcow2-cluster.c:777 there's a loop over an allocation-list, but instead of stopping somewhere, the "next" points to the current one. QLIST_FOREACH(old_alloc, &s->cluster_allocs, next_in_flight) { ... } because I'm not firm with qemu-development, I don't know, which behaviour would be correct, but simply break this loop doesn't seem to work: a few moments later the process is again at this point (tried so by setting the register for comparison to 0) this situation is continuosly reproducible, but it always take at least 10-15min to get there, so please, if you have suggestion which I should try and report, try to give as much suggestions as possible in one action. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/917824/+subscriptions
