2015-03-27 14:54+0300, Andrey Korolyov: > Trace with new bits: Thanks. > KVM internal error. Suberror: 2 > extra data[0]: 800000ef > extra data[1]: 80000b0d > extra data[2]: 77b The #GP code looks formatted as documented under INT in SDM, (vector << 3) | 2 | ext where 'ext' stands for 'external' (as opposed to software). 0x77b == (0xef << 3) | 2 | 1 It was 0xef and wasn't triggered by an INT instruction. The weird part is that it looks like a protected mode error, but CR0 says we are in real mode. (If CPU interpreted the vector in protected mode, then it would violate the IDT limit and throw a #GP ... It's too late for coffee today, so I'll try to lure some ideas later.) > EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000000 > ESI=00000000 EDI=00000000 EBP=00000000 ESP=00006d24 > EIP=0000d331 EFL=00010202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 > ES =0000 00000000 0000ffff 00009300 > CS =f000 000f0000 0000ffff 00009b00 > SS =0000 00000000 0000ffff 00009300 > DS =0000 00000000 0000ffff 00009300 > FS =0000 00000000 0000ffff 00009300 > GS =0000 00000000 0000ffff 00009300 > LDT=0000 00000000 0000ffff 00008200 > TR =0000 00000000 0000ffff 00008b00 > GDT= 000f6cb0 00000037 > 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=66 c3 cd 02 cb cd 10 cb cd 13 cb cd 15 cb cd 16 cb cd 18 cb <cd> > 19 cb cd 1c cb cd 4a cb fa fc 66 ba 47 d3 0f 00 e9 ad fe f3 90 f0 0f > ba 2d d4 fe fb 3f -- 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