On Fri, Mar 11, 2011 at 02:54:00PM +0300, Michael Tokarev wrote: > Hello. > > I installed an openbsd 4.8 image today to play with, > and noticed that when issuing "system_powerdown" in > kvm monitor, in about 5 seconds, qemu-kvm spews this > message in a tight loop: > > KVM internal error. Suberror: 1 > emulation failure > KVM internal error. Suberror: 1 > emulation failure > .... > > ad infinitum, until interrupted. > > I verified the issue exists in 0.14 and 0.12 qemu-kvm, > both 32 and 64bits. > Freebsd does not trigger this behavour, it is running > normally. > > kvm-0.12.5 behaves somewhat more sane in this case too, > it prints some more information: > > KVM internal error. Suberror: 1 > rax 0000000000000030 rbx 0000000000000000 rcx 0000000000000000 rdx 000000000000b100 > rsi 00000000d0201fc6 rdi 00000000d0ac1ad4 rsp 00000000d9651004 rbp 00000000d9759a38 > r8 0000000000000000 r9 0000000000000000 r10 0000000000000000 r11 0000000000000000 > r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 0000000000000000 > rip 00000000d0202041 rflags 00000292 > cs 0050 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type b l 0 g 1 avl 0) > ds 0010 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0) > es 0010 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0) > ss 0010 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0) > fs 0058 (d0ac1aa0/000003db p 1 dpl 0 db 0 s 1 type 3 l 0 g 0 avl 0) > gs 0010 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0) > tr 0078 (d9758000/00000333 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0) > ldt 0018 (d0a31580/00000087 p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0) > gdt d9575000/ffff > idt d0a31620/7ff > cr0 8001003b cr2 dcd0000 cr3 1f202000 cr4 780 cr8 3 efer 0 > emulation failure, check dmesg for details Michael, Can you stop the guest and issue: x/10i 0x00000000d0202041 > > As far as I can see, this is just a one-time message in 0.12. > Dmesg (on host) is completely silent. > > -no-kvm-irqchip does not help either (I tried it for a different > reason but decided to check this case too, while at it). > > Host kernel is 2.6.37-2 (with e5d135f80b98b0 + 2607b0533353c > applied after yesterdays freebsd issues), 64bit, running on > amd AthlonII CPU. In all cases guests were with -smp 1, and > without any fancy options (just -hda & -m). Openbsd 4.8 32bit. > > I see two issues here: one is the emulation failure and another > is the erratic behavour of kvm-0.14 - issuing that error message > in a tight loop. -- 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
