On Fri, Mar 6, 2015 at 1:14 AM, Andrey Korolyov <andrey@xxxxxxx> wrote: > Hello, > > recently I`ve got a couple of shiny new Intel 2620v2s for future > replacement of the E5-2620v1, but I experienced relatively many events > with emulation errors, all traces looks simular to the one below. I am > running qemu-2.1 on x86 on top of 3.10 branch for testing purposes but > can switch to some other versions if necessary. Most of crashes > happened during reboot cycle or at the end of ACPI-based shutdown > action, if this can help. I have zero clues of what can introduce such > a mess inside same processor family using identical software, as > 2620v1 has no simular problem ever. Please let me know if there can be > some side measures for making entire story more clear. > > Thanks! > > KVM internal error. Suberror: 2 > extra data[0]: 800000d1 > extra data[1]: 80000b0d > EAX=00000003 EBX=00000000 ECX=00000000 EDX=00000000 > ESI=00000000 EDI=00000000 EBP=00000000 ESP=00006cd4 > EIP=0000d3f9 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= 000f6e98 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=48 18 67 8c 00 8c d1 8e d9 66 5a 66 58 66 5d 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 fa fc 66 > b8 00 e0 00 00 8e It turns out that those errors are introduced by APICv, which gets enabled due to different feature set. If anyone is interested in reproducing/fixing this exactly on 3.10, it takes about one hundred of migrations/power state changes for an issue to appear, guest OS can be Linux or Win. -- 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
