semantic: 0.185 other: 0.109 files: 0.107 device: 0.107 graphic: 0.076 socket: 0.062 network: 0.060 debug: 0.057 vnc: 0.055 PID: 0.052 boot: 0.045 permissions: 0.037 performance: 0.028 KVM: 0.021 semantic: 0.181 debug: 0.159 other: 0.140 files: 0.136 device: 0.075 performance: 0.066 network: 0.061 PID: 0.058 boot: 0.032 socket: 0.023 graphic: 0.023 permissions: 0.022 KVM: 0.013 vnc: 0.012 qemu-system crashes when use sheepdog driver Already solved. why this bug is Invalid? U can view my upload file and qemu/block/sheepdog.c differences. Sorry, but if I read a bug description that says "already solved", without any proper description how you ran qemu, which version you were using, etc., then the bug ticket does not make much sense. So please provide a proper description, and if you've already got a fix, send a patch (diff!) to the qemu-devel mailing list instead of attaching a .c file to the bug tracker. See http://wiki.qemu-project.org/Contribute/SubmitAPatch for details. Thanks. Have you ever sent a patch to the qemu-devel mailing list? [Expired for QEMU because there has been no activity for 60 days.]