Bugs item #2971075, was opened at 2010-03-16 07:02 Message generated for change (Tracker Item Submitted) made by zaphodbrx You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2971075&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: qemu Group: v1.0 (example) Status: Open Resolution: None Priority: 5 Private: No Submitted By: Andre Weidemann (zaphodbrx) Assigned to: Nobody/Anonymous (nobody) Summary: Assertion `bmdma->unit != (uint8_t)-1' failed. Initial Comment: Hi, I cloned the qemu-kvm git repository with "git clone git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git qemu-kvm-2010-03-14", ran configure and compiled it and did a "make install". Everything went fine without warnings or errors. For configure output take a look here: http://pastebin.com/BL4DYCRY Here is my Server Hardware: Asus P5Q Mainboard Intel Q9300 8GB RAM I am running Ubuntu 9.10 x86_64 with kernel 2.6.31-20-server. RAID5 with mdadm consisting of 4x 1TB disks The volume /dev/storage/Windows7test mentioned below is on this RAID5. I ran my virtual machine with the following command: qemu-system-x86_64 -cpu core2duo -vga cirrus -boot order=ndc -vnc 192.168.3.42:2 -k de -smp 4,cores=4 -drive file=/vmware/Windows7Test_600G.img,if=ide,index=0,cache=writeback -m 1024 -net nic,model=e1000,macaddr=DE:AD:BE:EF:12:3A -net tap,script=/usr/local/bin/qemu-ifup -monitor pty -name Windows7test,process=Windows7test -drive file=/dev/storage/Windows7test,if=ide,index=1,cache=none,aio=native Windows7Test_600G.img is a qcow2 file and contains a Windows 7 Pro image. /dev/storage/Windows7test is formated with XFS(inside the VM) After starting the machine with the above command line, I booted into an Ubuntu 9.10 x86_64 Live Image via PXE and mounted /dev/sdb1 (/dev/storage/Windows7test) under /mnt. I then did "cd /mnt/" and ran "iozone -Ra -g 2G -b /tmp/iozone-aoi-linux.xls" iozone ran some tests and then kvm simply quit with the following error message: qemu-system-x86_64: /usr/local/src/qemu-kvm-2010-03-10/hw/ide/internal.h:510: bmdma_active_if: Assertion `bmdma->unit != (uint8_t)-1' failed. /var/log/syslog contained the folowing: Mar 14 09:18:14 server kernel: [318080.627468] kvm: 1361: cpu0 kvm_set_msr_common: MSR_IA32_MCG_STATUS 0x0, nop Mar 14 09:18:14 server kernel: [318080.627473] kvm: 1361: cpu0 kvm_set_msr_common: MSR_IA32_MCG_CTL 0xffffffffffffffff, nop Mar 14 09:18:14 server kernel: [318080.627476] kvm: 1361: cpu0 unhandled wrmsr: 0x400 data ffffffffffffffff Mar 14 09:18:14 server kernel: [318080.627506] kvm: 1361: cpu1 kvm_set_msr_common: MSR_IA32_MCG_STATUS 0x0, nop Mar 14 09:18:14 server kernel: [318080.627509] kvm: 1361: cpu1 kvm_set_msr_common: MSR_IA32_MCG_CTL 0xffffffffffffffff, nop Mar 14 09:18:14 server kernel: [318080.627511] kvm: 1361: cpu1 unhandled wrmsr: 0x400 data ffffffffffffffff Mar 14 09:18:14 server kernel: [318080.627538] kvm: 1361: cpu2 kvm_set_msr_common: MSR_IA32_MCG_STATUS 0x0, nop Mar 14 09:18:14 server kernel: [318080.627540] kvm: 1361: cpu2 kvm_set_msr_common: MSR_IA32_MCG_CTL 0xffffffffffffffff, nop Mar 14 09:18:14 server kernel: [318080.627543] kvm: 1361: cpu2 unhandled wrmsr: 0x400 data ffffffffffffffff I was able to reproduce this error 3 times in a row. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2971075&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html