Description of problem: qemu-kvm crashed when setting 32bitwin28k with 64G ram Got error: kvm_run: failed entry, reason 7 rax 000000008000003b rbx 0000000000122000 rcx 0000000000000020 rdx 0000000000000000 rsi 0000000000000000 rdi 00000000ffd0a000 rsp 0000000000000000 rbp 00000000803998f4 r8 0000000000000000 r9 0000000000000000 r10 0000000000000000 r11 0000000000000000 r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 0000000000000000 rip 00000000000003a6 rflags 00033006 cs 0200 (00002000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) ds 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) es 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) ss 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) fs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0) tr 0000 (fffbd000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0) ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0) gdt 803d85d0/3ff idt 803d89d0/7ff cr0 60000010 cr2 0 cr3 109000 cr4 20 cr8 0 efer 800 kvm_run returned -8 Version-Release number of selected component (if applicable): 83-105 How reproducible: 100% Steps to Reproduce: 1.start guest by: /usr/libexec/qemu-kvm -no-hpet -rtc-td-hack -drive file=win2008-32-virtio.qcow2,if=ide -cpu qemu64,+sse2 -m 64G -smp 8 -net nic,macaddr=20:20:20:90:00:35,model=rtl8139,vlan=0 -net tap,script=/etc/qemu-ifup,vlan=0 -net nic,macaddr=20:20:20:90:00:36,model=e1000,vlan=1 -net tap,script=/etc/qemu-ifup,vlan=1 -vnc :1 Actual results: Expected results: Additional info: host info: free -lm total used free shared buffers cached Mem: 515761 2960 512801 0 228 2332 Low: 515761 2960 512801 High: 0 0 0 -/+ buffers/cache: 398 515363 Swap: 1999 0 1999 cpuinfo: processor : 47 vendor_id : GenuineIntel cpu family : 6 model : 29 model name : Intel(R) Xeon(R) CPU E7450 @ 2.40GHz
FYI on AMD host . can not boot the guest with 64GB RAM https://bugzilla.redhat.com/show_bug.cgi?id=517223#c1
does -smp 1 work?
Verified in kvm-83-139.el5, this problem does not exist. steps: 1. boot win2008-32-DC with 64G mem: /usr/libexec/qemu-kvm -rtc-td-hack -no-hpet -usbdevice tablet -cpu qemu64,+sse2 -drive file=win28k-32-virtio.qcow2,if=virtio,boot=on,format=qcow2,cache=off -smp 8 -m 64G -vnc :2 -net nic,macaddr=20:20:20:11:11:90,model=e1000,vlan=0 -net tap,script=/root/qemu-ifup,vlan=0 -monitor stdio -balloon none Actual result: guest can boot up successfully and check physical mem in task manager, it is 64G. guest works fine after one hour.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2010-0271.html