Gerd, do you think we should rebuild the iPXE binaries bundled with QEMU with the offending iPXE commit (71560d185475) reverted, at least until KVM gets FXSAVE emulation in big real mode? I think this would be reasonable, as that iPXE commit works around a bug in the IBM Tivoli Provisioning Manager VMM.
(In other words, the iPXE commit that breaks QEMU's bundled binaries, for a number of KVM users, targets a hypervisor that's different from QEMU/KVM/Xen -- thus normally we wouldn't care about that commit at all.) Thanks. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1623276 Title: qemu 2.7 / iPXE crash Status in QEMU: New Bug description: I am running Arch linux vanilla 4.7.2 kernel qemu 2.7 libvirt 2.2.0 virt-manager 1.4.0 Since the upgrade from qemu 2.6.1 to 2.7 a few days ago. I'm no longer able to PXE boot at all. Everything else appears to function normally. Non PXE booting and everything else is perfect. Obviously have restarted everying etc. Have tried the various network drivers also. This occurs on domains created with 2.6.1 or with 2.7 When I choose PXE boot, the machine moves to a paused state (crashed) immediately after the 'starting PXE rom execution...' message appears. Reverting to qemu 2.6.1 package corrects the issue. The qemu.log snippet follows below. I'm not sure how to troubleshoot this problem to determine if it's a packaging error by the distribution or a problem with qemu/kvm/kernel? Any help would be much appreciated - Thanks, Greg --- qemu.log: 2016-09-12 16:36:33.867+0000: starting up libvirt version: 2.2.0, qemu version: 2.7.0, hostname: seneca LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=spice /usr/sbin/qemu-system-x86_64 -name guest=c,debug- threads=on -S -object secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-6- c/master-key.aes -machine pc-i440fx-2.7,accel=kvm,usb=off,vmport=off -cpu Nehalem -m 2048 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid 348009be-26d5-4dc7-b515- e8b45f5117ac -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-6- c/monitor.sock,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot menu=on,strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x6.0x7 -device ich9-usb- uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6 -device ich9-usb- uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1 -device ich9- usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive file=/var/lib/libvirt/images/c.qcow2,format=qcow2,if=none,id=drive- virtio-disk0 -device virtio-blk- pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk0,id=virtio- disk0,bootindex=1 -netdev tap,fd=28,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:a0:95:7c,bus=pci.0,addr=0x 3 -chardev pty,id=charserial0 -device isa- serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/var/lib/libvirt/qemu/channel/target/domain -6-c/org.qemu.guest_agent.0,server,nowait -device virtserialport,bus=virtio- serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_age nt.0 -chardev spicevmc,id=charchannel1,name=vdagent -device virtserialport,bus=virtio- serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 -device usb-tablet,id=input0,bus=usb.0,port=1 -spice port=5901,addr=127.0.0.1,disable-ticketing,image- compression=off,seamless-migration=on -device qxl- vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vga mem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 -device intel- hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0- codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 -chardev spicevmc,id=charredir1,name=usbredir -device usb- redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device virtio- balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -msg timestamp=on char device redirected to /dev/pts/0 (label charserial0) main_channel_link: add main channel client red_dispatcher_set_cursor_peer: inputs_connect: inputs channel client create KVM internal error. Suberror: 1 emulation failure EAX=801a8d00 EBX=000000a0 ECX=00002e20 EDX=0009d5e8 ESI=7ffa3c00 EDI=7fef4000 EBP=ffffffff ESP=00007b92 EIP=000006ab EFL=00000087 [--S--PC] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 ffffffff 00c09300 CS =9c4c 0009c4c0 ffffffff 00809b00 SS =0000 00000000 ffffffff 00809300 DS =9cd0 0009cd00 ffffffff 00c09300 FS =0000 00000000 ffffffff 00c09300 GS =0000 00000000 ffffffff 00c09300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00000000 00000000 IDT= 00000000 000003ff CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=00 16 66 9c 66 60 0f a8 0f a0 06 1e 16 0e fa 2e 8e 1e 90 06 <0f> ae 06 d0 1c 0f 01 0e c6 1c 0f 01 06 c0 1c fc 66 b9 38 00 00 00 66 ba 10 02 00 00 66 68 --- /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 26 model name : Intel(R) Core(TM) i7 CPU 950 @ 3.07GHz stepping : 5 microcode : 0x11 cpu MHz : 3066.648 cache size : 8192 KB physical id : 0 siblings : 8 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm tpr_shadow vnmi flexpriority ept vpid dtherm bugs : bogomips : 6135.85 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1623276/+subscriptions
